Abstract

Discussed is a battery pack that may include at least one battery module including at least one battery cell; a case tray configured to support the at least one battery module; a tray cover coupled to the case tray; and at least one bushing gasket configured to connect the case tray and the tray cover and to support the case tray on a plurality of points.

IPC Classes  ?

• H01M 50/186 - Sealing members characterised by the disposition of the sealing members
• H01M 50/244 - Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
• H01M 50/249 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains

Abstract

A battery module includes a battery cell stack in which a plurality of battery cells are stacked; a module frame that houses the battery cell stack; and end plates arranged on both sides of the battery cell stack. At least one of the module frame and the end plate is formed with a venting part that discharges gas in one direction. The opening/closing of the venting part are adjusted according to the pressure rise inside the module frame.

IPC Classes  ?

• H01M 50/333 - Spring-loaded vent valves
• H01M 50/211 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for pouch cells
• H01M 50/325 - Re-sealable arrangements comprising deformable valve members, e.g. elastic or flexible valve members

Abstract

Disclosed are a method and apparatus for measuring a height of a pouch cup portion that accommodates an electrode assembly, which can improve the quality of a pouch by minimizing measurement deviations between measurers to improve the reliability for the height measurement of the pouch cup portion. The method for measuring the height of the pouch cup portion is a method for measuring a height of a pouch cup portion of a pouch case for a secondary battery, the method including the steps of: (a) covering a cup portion support jig with a pouch; (b) positioning an upper fixing jig to expose a corner portion for measuring a height of the cup portion in a pouch upper surface covered on the cup portion support jig, and to cover a periphery of the exposed corner; (c)positioning a lower fixing jig at a pouch wing portion and a peripheral bottom portion of a lower corner portion corresponding to the corner portion to expose the periphery of the lower corner portion and cover other portions; and (d) measuring the cup portion height of the corner portion exposed by the upper fixing jig and the lower fixing jig through a 3D shape measurer.

IPC Classes  ?

• G01B 11/06 - Measuring arrangements characterised by the use of optical techniques for measuring length, width, or thickness for measuring thickness
• G01B 5/00 - Measuring arrangements characterised by the use of mechanical techniques
• H01M 10/04 - Construction or manufacture in general
• H01M 50/105 - Pouches or flexible bags

Abstract

A method for assigning communication IDs and a system for allocating communication IDs includes a plurality of slave battery management systems (BMSs) sequentially connected to a power line for supplying power, and allocating predetermined communication IDs based on a first current amount applied through the power line, at least one of the slave BMSs outputs a second current amount that is the first current amount minus a consumed current amount for driving through the power line, and the first current amount corresponds to a summation value of a consumed current amount of the slave BMS receiving the first current amount and a consumed current amount of at least one posterior slave BMS sequentially connected to the slave BMS receiving the first current amount.

IPC Classes  ?

• H04L 12/40 - Bus networks

Abstract

A battery diagnosis apparatus includes a battery monitor to detect a voltage of each of a plurality of battery cells included in a battery module; and a control circuit to determine a latest value of a first voltage deviation indicating a difference between a voltage behavior of each battery cell and an average voltage behavior of the plurality of battery cells over a relaxation period from a start time of a resting event.

IPC Classes  ?

• G01R 31/396 - Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
• G01R 31/3835 - Arrangements for monitoring battery or accumulator variables, e.g. SoC involving only voltage measurements
• G01R 31/52 - Testing for short-circuits, leakage current or ground faults

Abstract

Disclosed is a positive electrode for a lithium-sulfur battery, including a sulfur-carbon composite as a positive electrode active material. The sulfur-carbon composite includes a porous carbonaceous material having a high specific surface area, and the total pore volume in the carbonaceous material and a volume of pores having a specific diameter are controlled to specific ranges. Also disclosed is a lithium-sulfur battery using the sulfur-carbon composite. The lithium-sulfur battery shows reduced initial irreversible capacity and improved output characteristics and life characteristics.

IPC Classes  ?

• H01M 4/36 - Selection of substances as active materials, active masses, active liquids
• H01M 4/136 - Electrodes based on inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy
• H01M 4/58 - Selection of substances as active materials, active masses, active liquids of polyanionic structures, e.g. phosphates, silicates or borates
• H01M 4/587 - Carbonaceous material, e.g. graphite-intercalation compounds or CFx for inserting or intercalating light metals

Abstract

A reform pin is provided in which one end of a head portion extending from a body portion is provided thicker than the body portion, so that a contact surface with an inner surface of an electrode assembly is reduced when an inserted reform pin is removed from the electrode assembly, thereby stably removing the reform pin without lifting of a separation membrane. In addition, a vertex of the head portion is formed to be inclined to one side, such that it is possible to provide a high-performance and highly reliable reform pin that may be easily inserted while avoiding the separation membrane in which a lifting phenomenon occurs when the reform pin is inserted into the hollow portion of the electrode assembly.

IPC Classes  ?

• H01M 10/04 - Construction or manufacture in general
• H01M 10/0587 - Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators

Abstract

A battery module includes a battery cell stack in which a plurality of battery cells are stacked; a module frame that houses the battery cell stack; and a sliding plate that is arranged between battery cells adjacent to each other among the plurality of battery cells.

IPC Classes  ?

• H01M 50/242 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries against vibrations, collision impact or swelling
• H01M 50/211 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for pouch cells
• H01M 50/244 - Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method

Abstract

A battery pack includes a battery module assembly having at least one battery cell, a pack case configured to accommodate the battery module assembly, and a barrier unit provided on at least one side of the pack case, configured to discharge a vent gas in the pack case to the outside of the pack case and having at least one blocking baffle disposed obliquely to have a predetermined inclination angle.

IPC Classes  ?

• H01M 50/367 - Internal gas exhaust passages forming part of the battery cover or case; Double cover vent systems
• H01M 50/211 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for pouch cells
• H01M 50/249 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
• H01M 50/251 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for stationary devices, e.g. power plant buffering or backup power supplies
• H01M 50/383 - Flame arresting or ignition-preventing means

Abstract

The battery diagnosis method includes calculating, by a battery management system (BMS), a plurality of direct current internal resistances (DCIRs) respectively with respect to a plurality of battery cells based on a plurality of cell voltages and a plurality of cell currents, deriving, by the BMS, an entire representative value of the plurality of DCIRs, calculating, by the BMS, a multi-parallel ideality factor based on a parallel connection number, calculating, by the BMS, a dispersion of the plurality of DCIRs based on the plurality of DCIRs and the entire representative values of the plurality of DCIRs, calculating, by the BMS, an upper limit threshold value of a normal range, and deriving, by the BMS, the normal range based on the upper limit threshold value, and diagnosing a state of a battery pack including the plurality of battery cells according to the normal range.

IPC Classes  ?

• G01R 31/389 - Measuring internal impedance, internal conductance or related variables
• G01R 31/3842 - Arrangements for monitoring battery or accumulator variables, e.g. SoC combining voltage and current measurements
• G01R 31/396 - Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery

Abstract

A battery includes an electrode assembly including a first electrode, a second electrode and a separator between the first electrode and the second electrode, the first electrode, the second electrode and the separator being wound around a winding axis to define a core and an outer peripheral surface. The first electrode and the second electrode include a first uncoated region and a second uncoated region along a winding direction, respectively, and an active material layer coating is absent in the first uncoated region and the second uncoated region. The battery further includes a housing receiving the electrode assembly through an opening formed at a bottom, a first current collector coupled to the first uncoated region and disposed within the housing, a cap covering the opening, a spacer interposed between the cap and the electrode assembly to fix the electrode assembly and seal the housing, and a terminal electrically connected to the second uncoated region.

IPC Classes  ?

• H01M 50/474 - Spacing elements inside cells other than separators, membranes or diaphragms; Manufacturing processes thereof characterised by their position inside the cells
• H01M 10/04 - Construction or manufacture in general
• H01M 50/107 - Primary casings, jackets or wrappings of a single cell or a single battery characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
• H01M 50/152 - Lids or covers characterised by their shape for cells having curved cross-section, e.g. round or elliptic
• H01M 50/167 - Lids or covers characterised by the methods of assembling casings with lids by crimping
• H01M 50/213 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
• H01M 50/342 - Non-re-sealable arrangements
• H01M 50/507 - Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising an arrangement of two or more busbars within a container structure, e.g. busbar modules
• H01M 50/509 - Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the type of connection, e.g. mixed connections
• H01M 50/533 - Electrode connections inside a battery casing characterised by the shape of the leads or tabs
• H01M 50/538 - Connection of several leads or tabs of wound or folded electrode stacks

Abstract

A cylindrical secondary battery module includes a plurality of cylindrical secondary battery cells having an electrode assembly and an electrolyte accommodated therein; a cell frame in which the plurality of cylindrical secondary battery cells are disposed; and a bus bar coupled to each of a plurality of cylindrical secondary battery cells and having a plurality of welding portions thereon. Among the plurality of welding portions, the welding portions spaced apart at larger intervals are welded to each other.

IPC Classes  ?

• H01M 50/516 - Methods for interconnecting adjacent batteries or cells by welding, soldering or brazing
• H01M 50/213 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
• H01M 50/505 - Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising a single busbar

Abstract

A method of setting information about a battery pack includes deriving, by a main control unit (MCU), information about a number of a plurality of battery cells based on a set resistance value connected to an input terminal of the MCU; when the derived number of the plurality of battery cells and a set maximum number N of cells are not the same, changing, by the MCU, a cell parameter indicating the number of battery cells from the maximum number of cells to the derived number of the plurality of battery cells; transmitting, by the MCU, a cell information request signal for requesting a number of cell voltages corresponding to the cell parameter to a battery monitoring integrated circuit (BMIC) connected to the plurality of battery cells; and receiving, by the MCU, a plurality of battery cell voltage signals from the BMIC.

IPC Classes  ?

• G01R 31/396 - Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
• G01R 31/374 - Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC] with means for correcting the measurement for temperature or ageing
• G01R 31/3835 - Arrangements for monitoring battery or accumulator variables, e.g. SoC involving only voltage measurements
• H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
• H01M 10/48 - Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte

Abstract

Disclosed is an apparatus and method for controlling step charging of a secondary battery. A charging control unit determines a SOC, an OCV and a polarization voltage of the secondary battery, determines an OCV deviation corresponding to a difference between the OCV and a predefined minimum OCV value, determines a correction factor corresponding to the polarization voltage and the OCV deviation, determines a look-up SOC by correcting the SOC according to the correction factor, determines the magnitude of a charging current corresponding to the look-up SOC, and provides the determined charging current to a charging device.

IPC Classes  ?

• H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
• G01R 31/367 - Software therefor, e.g. for battery testing using modelling or look-up tables
• G01R 31/374 - Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC] with means for correcting the measurement for temperature or ageing
• G01R 31/3835 - Arrangements for monitoring battery or accumulator variables, e.g. SoC involving only voltage measurements

Abstract

A battery pack includes a plurality of battery cell stacks, each battery cell stack having a plurality of battery cells stacked in a first direction; a pack tray in which the plurality of battery cell stacks are accommodated in a plurality of rows extending in a second direction perpendicular to the first direction, each row having multiple battery cell stacks arranged in the second direction, the pack tray including: a base, a plurality of sidewalls extending from the base, a plurality of first beams extending in the second direction to separate the plurality of rows into groups, and a plurality of partition walls extending in the second direction, each partition wall being located within a corresponding group to separate adjacent battery cells stacks from each other; a pack cover covering an opening portion of the pack tray opposite the base; and a plurality of elastic members.

IPC Classes  ?

• H01M 50/242 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries against vibrations, collision impact or swelling
• H01M 50/211 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for pouch cells
• H01M 50/258 - Modular batteries; Casings provided with means for assembling
• H01M 50/262 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
• H01M 50/271 - Lids or covers for the racks or secondary casings

Abstract

A battery module has improved assemblability and safety. A battery module includes at least one battery cell, and a module frame including a plurality of unit frames that are inserted and coupled to each other, an inner space in which the cell assembly is accommodated, and a venting channel provided in an overlapping portion formed through the insertion.

IPC Classes  ?

• H01M 50/258 - Modular batteries; Casings provided with means for assembling
• H01M 50/249 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
• H01M 50/367 - Internal gas exhaust passages forming part of the battery cover or case; Double cover vent systems

Abstract

An electrode sheet drying equipment, an electrode sheet manufacturing system including the same, and an electrode sheet drying method including an air-floating roller disposed downstream of a drying oven, and the air-floating roller is configured to spray hot air through multiple air spraying holes formed on the outer circumferential surface. Accordingly, the electrode sheet discharged from the drying oven in a partially undried state can be additionally dried, thereby preventing contamination of a transfer roller and/or equipment of the subsequent process.

IPC Classes  ?

• H01M 4/04 - Processes of manufacture in general
• F26B 13/20 - Supporting materials by fluid jets, e.g. air

Abstract

Disclosed are a battery pack and a vehicle comprising the same. The battery pack according to an embodiment of the present disclosure includes a battery module including a plurality of battery cells; a case in which the battery module is received; and a busbar unit connected to the battery module, wherein the busbar unit is used for electrical connection and heat dissipation.

IPC Classes  ?

• H01M 10/653 - Means for temperature control structurally associated with the cells characterised by electrically insulating or thermally conductive materials
• H01M 10/6551 - Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
• H01M 50/209 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
• H01M 50/507 - Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising an arrangement of two or more busbars within a container structure, e.g. busbar modules

Abstract

Provided is an electrode assembly comprising a negative electrode structure and multiple positive electrodes. The negative electrode structure comprises first and second separators, and a lithium metal layer interposed between the first and second separators. The negative electrode structure comprises multiple stack portions and multiple folding portions. The electrode assembly has a structure in which the stack portions of the negative electrode structure and the positive electrodes are stacked alternately and successively. The negative electrode includes multiple negative electrode tabs protruding in the transverse direction compared with the first and second separators in the negative electrode structure. The number of negative electrode tabs is smaller than the number of stack portions of the the negative electrode structure by at least one. An electrode assembly according to a specific embodiment of the present invention has a reduced number of negative electrode tabs, thereby improving the productivity in following processes such as a negative electrode tab welding process.

IPC Classes  ?

• H01M 10/0583 - Construction or manufacture of accumulators with folded construction elements except wound ones, i.e. folded positive or negative electrodes or separators, e.g. with ‘’Z’’-shaped electrodes or separators
• H01M 4/134 - Electrodes based on metals, Si or alloys
• H01M 50/533 - Electrode connections inside a battery casing characterised by the shape of the leads or tabs
• H01M 10/052 - Li-accumulators

Abstract

Provided is a method for manufacturing a stacking-folding-type electrode assembly using a negative electrode structure in which a negative electrode including a lithium metal layer is interposed between two separators. The manufacturing method comprises the steps of: positioning the lithium metal layer so as to protrude in the width direction between the two separators; manufacturing the negative electrode structure by laminating the lithium metal layer and the separators; stacking one positive electrode on the negative electrode structure and folding the negative electrode structure in the width direction so as to surround the positive electrode; manufacturing an electrode laminate including a plurality of positive electrodes by repeating the previous steps; and forming a negative electrode tab by cutting a portion of the lithium metal layer protruding in the width direction, and bonding the negative electrode tab. The method of manufacturing the electrode assembly can minimize the processing of lithium metal, and thus can improve the productivity of the electrode assembly.

IPC Classes  ?

• B23K 20/10 - Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating making use of vibrations, e.g. ultrasonic welding
• H01M 50/531 - Electrode connections inside a battery casing
• H01M 10/0583 - Construction or manufacture of accumulators with folded construction elements except wound ones, i.e. folded positive or negative electrodes or separators, e.g. with ‘’Z’’-shaped electrodes or separators
• B23K 101/36 - Electric or electronic devices

Abstract

The present invention relates to a curved battery cell thickness measuring device including low measuring pressure calipers that can accurately and consistently measure the thickness of a curved battery cell which is a rectangular parallelopiped battery cell transformed into a curved surface, and a curved battery cell thickness measuring method using same. According to the present invention, a curved battery cell may be perpendicularly fixed to the floor by using an arc-shaped jig tailored to the shape of the curved battery cell, and the thickness of the curved battery cell may be accurately and consistently measured using the low measuring pressure calipers at a fixed position.

IPC Classes  ?

• G01B 3/24 - Feeler-pin gauges, e.g. dial gauges with open yoke, i.e. calipers
• G01B 5/00 - Measuring arrangements characterised by the use of mechanical techniques
• G01B 5/06 - Measuring arrangements characterised by the use of mechanical techniques for measuring length, width, or thickness for measuring thickness
• H01M 10/058 - Construction or manufacture

Abstract

A method for manufacturing an electrode assembly, according to one embodiment of the present invention, comprises steps in which: a cathode sheet, a separator sheet and an anode sheet are unwound in each of a plurality of roll members; the unwound cathode sheet, separator sheet, and anode sheet form a stack while passing between a pair of guide rolls; and the stack comprising the cathode sheet, the separator sheet, and the anode sheet is punched, wherein, in each of the cathode sheet and the anode sheet, an active material and a non-conductive material are alternately applied on the basis of the driving direction of the guide rolls, and punching of the stack is the punching of a portion to which the non-conductive material is applied.

IPC Classes  ?

• H01M 10/0585 - Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
• H01M 4/134 - Electrodes based on metals, Si or alloys
• H01M 10/052 - Li-accumulators

Abstract

The present disclosure relates to positive electrode particles comprising: a positive electrode active material layer comprising positive electrode active material particles; and a solid electrolyte layer surrounding the positive electrode active material layer and comprising solid electrolyte particles, wherein the average size of the solid electrolyte particles is 10-20% of the average size of the positive electrode active material particles.

IPC Classes  ?

• H01M 4/36 - Selection of substances as active materials, active masses, active liquids
• H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
• H01M 10/0562 - Solid materials
• H01M 10/052 - Li-accumulators
• H01M 4/02 - Electrodes composed of, or comprising, active material

Abstract

A monitoring system according to one embodiment disclosed in the present document may comprise: a plant control unit (PLC), which receives specification information of at least one electrode from a first sensor, receives position coordinates of the at least one electrode from a second sensor, and generates identification information of each of the at least one electrode on the basis of the specification information and the position coordinates; an inspection device, which inspects the at least one electrode and generates inspection information; and a controller, which matches the identification information of the at least one electrode with the inspection information and manages same.

IPC Classes  ?

• G06Q 50/10 - Services
• H01M 10/04 - Construction or manufacture in general
• G05B 19/05 - Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
• G01R 31/385 - Arrangements for measuring battery or accumulator variables
• G01R 31/392 - Determining battery ageing or deterioration, e.g. state of health
• G01R 31/396 - Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery

Abstract

A method for controlling the supply amount of electrode slurry, according to the present invention, comprises the steps of: supplying the slurry from a first tank to a coater; if the amount of the slurry stored in the first tank is reduced and the level of the first tank reaches a first predetermined level, supplying the slurry from a second tank, connected to the first tank, into the first tank for a predetermined period of time; and after the predetermined period of time has elapsed, automatically stopping supply of the slurry from the second tank into the first tank.

IPC Classes  ?

• H01M 4/04 - Processes of manufacture in general
• B05C 11/10 - Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
• B05C 5/02 - Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work from an outlet device in contact, or almost in contact, with the work

Abstract

The present invention provides a cylindrical battery cell. A butt wall with an extended inner diameter is provided at an open end of the side wall portion of a battery can of the battery cell. A cap covering the open end includes a butt surface, which is in contact with the inner circumferential surface of the butt wall and press-fitted, and an electrode connection portion connected to an electrode tab of an electrode assembly accommodated in the battery can. The press-fitting depth of the cap with respect to the battery can is regulated by the electrode connection portion (41) of the cap (40) and the electrode tab of the electrode assembly. The butt surface and the butt wall are weld-bonded and thus electrically connected. The present invention provides a method for manufacturing the battery cell, a battery pack including the battery cell, and a vehicle including the battery cell.

IPC Classes  ?

• H01M 50/169 - Lids or covers characterised by the methods of assembling casings with lids by welding, brazing or soldering
• H01M 50/152 - Lids or covers characterised by their shape for cells having curved cross-section, e.g. round or elliptic
• H01M 50/107 - Primary casings, jackets or wrappings of a single cell or a single battery characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
• H01M 50/536 - Electrode connections inside a battery casing characterised by the method of fixing the leads to the electrodes, e.g. by welding
• H01M 50/538 - Connection of several leads or tabs of wound or folded electrode stacks
• H01M 50/342 - Non-re-sealable arrangements
• H01M 50/249 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
• H01M 50/655 - Plugs specially adapted for venting

Abstract

The present invention relates to a battery pack including heterogeneous battery cells, and more specifically, provides a battery pack comprising: a first battery module including a plurality of first battery cells; a second battery module including a plurality of second battery cells; a pack housing including an accommodation portion accommodating the first battery module and the second battery module together; a partition wall portion which forms an inner wall of the accommodation portion; and a pack battery management system (BMS) which controls an available capacity of the first battery module and an available capacity of the second battery module to be the same or similar, wherein the second battery module is capable of cooling the first battery module.

IPC Classes  ?

• H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
• H01M 10/48 - Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
• H01M 10/651 - Means for temperature control structurally associated with the cells characterised by parameters specified by a numeric value or mathematical formula, e.g. ratios, sizes or concentrations
• H01M 10/658 - Means for temperature control structurally associated with the cells by thermal insulation or shielding
• H01M 10/613 - Cooling or keeping cold
• H01M 50/569 - Constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals
• H01M 50/293 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs characterised by the material
• H01M 50/204 - Racks, modules or packs for multiple batteries or multiple cells
• H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy

Abstract

The present invention relates to a secondary battery degassing device. More specifically, the present invention provides a secondary battery degassing device comprising: a first rolling press having multiple first pressing rollers arranged at predetermined intervals; a second rolling press disposed to face the first rolling press, and having multiple second pressing rollers arranged at predetermined intervals; a first driving device for varying the distance between the first rolling press and the second rolling press; and a second driving device for rotating the first pressing rollers and the second pressing rollers, wherein the first pressing rollers and the second pressing rollers are in rolling-contact with and press a secondary battery disposed between the first rolling press and the second rolling press.

IPC Classes  ?

• H01M 10/04 - Construction or manufacture in general
• H01M 10/058 - Construction or manufacture
• H01M 50/30 - Arrangements for facilitating escape of gases

Abstract

A detection device for detecting a defective electrode, according to various embodiments, comprises: a measurement module configured to acquire a thickness measurement value of at least one electrode; and a processor electrically connected to the measurement module, wherein the processor may be configured to identify, on the basis of the thickness measurement value, a groove formed in the at least one electrode, and detect the at least one electrode as a defective electrode when a wavy groove corresponding to a reference shape is identified.

IPC Classes  ?

• G01B 21/08 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness for measuring thickness
• G01B 11/06 - Measuring arrangements characterised by the use of optical techniques for measuring length, width, or thickness for measuring thickness
• H01M 4/04 - Processes of manufacture in general

Abstract

The present invention provides a battery module structure comprising: a battery cell stack; a housing, which has an open top and accommodates the battery cell stack; and a top cover for covering the top of the housing, wherein the top cover includes a first layer formed from a rigid body, a second layer formed from a flexible body and stacked on the first layer, a venting hole penetrating the first layer in the vertical direction, and a slit, which penetrates the second layer in the vertical direction and is not circular, and the first layer and the second layer are fixed to each other along at least one portion of a section of an edge part.

IPC Classes  ?

• H01M 50/342 - Non-re-sealable arrangements
• H01M 50/375 - Vent means sensitive to or responsive to temperature
• H01M 50/231 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material of the casings or racks having a layered structure
• H01M 50/367 - Internal gas exhaust passages forming part of the battery cover or case; Double cover vent systems
• H01M 50/233 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
• H01M 50/262 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
• H01M 50/24 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
• H01M 50/249 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
• H01M 10/658 - Means for temperature control structurally associated with the cells by thermal insulation or shielding

Abstract

A panel assembly of the present invention is provided on a battery cell stack, in which a plurality of battery cells are stacked, so as to absorb swelling pressure of the battery cells, and comprises: a first panel which has at least one first protrusion protruding in the thickness direction of the battery cells, and which is connected to the bottom of the first protrusion so as to encompass the first protrusion; and a second panel which has at least one first through hole, and which is disposed to face the first panel, wherein opposing inner surfaces of the first panel and the second panel are coupled to each other while the first protrusion is inserted into the first through hole such that the front end of the first protrusion protrudes through the first through hole, and, when the front end of the first protrusion is pressed by the swelling pressure of the battery cells, the first protrusion is elastically displaced in the opposite direction of protrusion so that the swelling pressure can be absorbed. In addition, the present invention provides a battery cell block comprising the panel assembly, and a battery module comprising the battery cell block. In addition, the present invention provides a battery pack comprising the battery module.

IPC Classes  ?

• H01M 50/242 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries against vibrations, collision impact or swelling
• H01M 50/238 - Flexibility or foldability
• H01M 50/211 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for pouch cells
• H01M 50/224 - Metals

Abstract

The present invention relates to a negative electrode active material, a negative electrode including same, a secondary battery including same, and a method for preparing the negative electrode active material.

IPC Classes  ?

• H01M 4/36 - Selection of substances as active materials, active masses, active liquids
• H01M 4/48 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
• H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
• H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
• H01M 10/052 - Li-accumulators
• H01M 4/02 - Electrodes composed of, or comprising, active material

Abstract

The present disclosure pertains to a system for cutting lithium metal for negative electrodes, the system comprising: a lithium metal supply unit for supplying lithium metal; a lithium metal transport unit for transporting the lithium metal supplied from the lithium metal supply unit; and a lithium metal cutting unit for cutting the lithium metal transported by the lithium metal transport unit, wherein the lithium metal transport unit includes a plurality of rollers and refrigerant pipes disposed inside each of the plurality of rollers.

IPC Classes  ?

• B23D 15/08 - Sheet shears with a blade moved in one plane, e.g. perpendicular to the surface of the sheet
• B23D 33/02 - Arrangements for holding, guiding, or feeding work during the operation
• B23Q 11/10 - Arrangements for cooling or lubricating tools or work
• F28D 11/02 - Heat-exchange apparatus employing moving conduits the movement being rotary, e.g. performed by a drum or roller

Abstract

A battery module according to an embodiment of the present invention comprises: a battery cell stack including a first battery cell stack and a second battery cell stack in which a plurality of battery cells are stacked; a module frame for accommodating the battery cell stack; and an inlet and an outlet for circulating a refrigerant inside the module frame. The refrigerant flows into the module frame through the inlet and is discharged through the outlet. An insulating plate is disposed between the first battery cell stack and the second battery cell stack, and an opening through which the refrigerant passes is formed in the insulating plate.

IPC Classes  ?

• H01M 10/6568 - Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
• H01M 10/647 - Prismatic or flat cells, e.g. pouch cells
• H01M 10/613 - Cooling or keeping cold
• H01M 50/211 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for pouch cells
• H01M 50/24 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
• H01M 50/682 - Containers for storing liquids; Delivery conduits therefor accommodated in battery or cell casings

Abstract

An electrode assembly including a negative electrode structure and a plurality of positive electrodes is provided. The negative electrode structure includes first and second separators, and a lithium metal layer arranged between the first and second separators. The negative electrode structure is divided into a stack start part, a plurality of stack parts, a plurality of folding parts, and a wrapping part according to positions in the electrode assembly. The stack parts and the folding parts are alternately positioned between the stack start part and the wrapping part respectively located at the ends of the negative electrode structure, the stack start part is in contact with the folding part, and the wrapping part is in contact with the stack part. The electrode assembly has the stack start part and the plurality of stack parts sequentially positioned side by side in a thickness direction by the folding part, and at least one positive electrode is positioned between the stack start part and the stack part and between and the stack parts adjacent in the thickness direction. The electrode assembly has a structure in which outer surfaces in the thickness direction and a longitudinal direction are surrounded by the wrapping part or the wrapping part and an outermost stack part.

IPC Classes  ?

• H01M 10/0583 - Construction or manufacture of accumulators with folded construction elements except wound ones, i.e. folded positive or negative electrodes or separators, e.g. with ‘’Z’’-shaped electrodes or separators
• H01M 4/134 - Electrodes based on metals, Si or alloys
• H01M 10/052 - Li-accumulators

Abstract

Provided is an electrode assembly including a negative electrode structure and multiple positive electrodes. The negative electrode structure includes a first and a second separator, and a lithium metal layer interposed between the first and the second separator. The negative electrode structure is divided, according to the position in an electrode assembly, into multiple stack parts, multiple folding parts, and a first and a second wrapping part. In the negative electrode structure, stack parts and folding parts are alternatively disposed between the first and second wrapping parts, which are disposed at the respective ends, and the first and the second wrapping part are each in contact with a stack part. The electrode assembly has multiple stack parts sequentially arranged side by side in the thickness direction, due to the folding parts, and has at least one positive electrode between stack parts adjacent to each other in the thickness direction. The electrode assembly has a structure in which the outer surfaces thereof in the thickness direction and the longitudinal direction are surrounded by the first and the second wrapping part or the first and the second wrapping part and at least one outmost stack part.

IPC Classes  ?

• H01M 10/0583 - Construction or manufacture of accumulators with folded construction elements except wound ones, i.e. folded positive or negative electrodes or separators, e.g. with ‘’Z’’-shaped electrodes or separators
• H01M 4/134 - Electrodes based on metals, Si or alloys
• H01M 10/052 - Li-accumulators

Abstract

An embodiment of the present invention provides an electrode assembly, a method for manufacturing same, and a secondary battery including same, the electrode assembly having a structure in which a plurality of unit cells are wound by a separation film, and comprising a first unit cell and a second unit cell located at outermost portions on respective sides, wherein: the unit cells include a separator, and at least one selected from the group consisting of a positive electrode and a negative electrode; the positive electrode and the negative electrode each include a flat part in which the thickness of an active material layer is constant and an inclined part in which the thickness of the active material layer decreases in the direction in which the tabs protrude; and a first thickness-supplementing part and a second thickness-supplementing part, which supplement the thickness difference of the flat part and the inclined part, are provided respectively between the first unit cells and the outermost separation film facing the first unit cell and between the second unit cell and the outermost separation film facing the second unit cell.

IPC Classes  ?

• H01M 10/0583 - Construction or manufacture of accumulators with folded construction elements except wound ones, i.e. folded positive or negative electrodes or separators, e.g. with ‘’Z’’-shaped electrodes or separators
• H01M 10/04 - Construction or manufacture in general
• H01M 50/595 - Tapes
• H01M 50/586 - Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries inside the batteries, e.g. incorrect connections of electrodes
• H01M 50/531 - Electrode connections inside a battery casing
• C09J 133/08 - Homopolymers or copolymers of acrylic acid esters

Abstract

The present application relates to an anode for a lithium secondary battery, a method for manufacturing the anode for a lithium secondary battery, and a lithium secondary battery comprising the anode.

IPC Classes  ?

• H01M 4/38 - Selection of substances as active materials, active masses, active liquids of elements or alloys
• H01M 4/48 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
• H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
• H01M 4/134 - Electrodes based on metals, Si or alloys
• H01M 4/1395 - Processes of manufacture of electrodes based on metals, Si or alloys
• H01M 4/04 - Processes of manufacture in general
• H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
• H01M 4/02 - Electrodes composed of, or comprising, active material

Abstract

The present application relates to a negative electrode composition, a negative electrode for a lithium secondary battery, and a lithium secondary battery comprising the negative electrode.

IPC Classes  ?

• H01M 4/134 - Electrodes based on metals, Si or alloys
• H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
• H01M 4/48 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
• H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
• H01M 4/02 - Electrodes composed of, or comprising, active material

Abstract

TMLiTMLiLi are, respectively, the sum of the areas of peaks appearing in the 1000-2500 ppm region and the sum of the areas of peaks appearing in the 300-900 ppm region when peak deconvolution is performed on the 1D NMR center band spectrum extracted from the 2D 7Li Magic Angle Turning Phase Adjusted Spinning Sideband (MATPASS) NMR spectrum of the lithium-excess manganese-based oxide.

IPC Classes  ?

• H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
• H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
• H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
• H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
• H01M 4/02 - Electrodes composed of, or comprising, active material

Abstract

The present specification discloses a current collector for an electrode, and a use thereof. The current collector for an electrode exhibits excellent electrical characteristics, including low resistance, under normal conditions in a secondary battery or the like, and can ensure stability through an increase in resistance under abnormal conditions. The present specification also discloses a use of the current collector for an electrode.

IPC Classes  ?

• H01M 4/66 - Selection of materials
• H01M 4/13 - Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
• C08L 65/00 - Compositions of macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain; Compositions of derivatives of such polymers
• C08G 61/12 - Macromolecular compounds containing atoms other than carbon in the main chain of the macromolecule
• H01M 10/052 - Li-accumulators

Abstract

The present specification discloses a current collector. The current collector comprises a current collector body and a polymer layer formed on the current collector body, wherein the polymer layer may comprise a conductive polymer and a conductive material. The current collector exhibits excellent electrical properties, including low resistance, in a normal state and can ensure stability through an increase in resistance, etc. in an abnormal state. The present specification also discloses uses of the current collector.

IPC Classes  ?

• H01M 4/66 - Selection of materials
• H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
• C08G 61/12 - Macromolecular compounds containing atoms other than carbon in the main chain of the macromolecule
• C08G 65/326 - Polymers modified by chemical after-treatment with inorganic compounds containing sulfur
• H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
• H01M 10/052 - Li-accumulators
• H01M 4/02 - Electrodes composed of, or comprising, active material

Abstract

A battery includes an electrode assembly defining a core and an outer circumference by winding a first electrode, a second electrode, and a separator interposed therebetween around a winding center, each of the first electrode and the second electrode includes a first uncoated portion and a second uncoated portion on which an active material layer is not coated along the winding direction; a battery housing accommodating the electrode assembly through an opening formed on one side thereof; a cap including a venting portion, covering the opening, and electrically connected to the battery housing and the first uncoated portion; and a battery terminal penetrating one surface of the battery housing and electrically connected to the second uncoated portion.

IPC Classes  ?

• H01M 50/342 - Non-re-sealable arrangements
• H01M 10/04 - Construction or manufacture in general
• H01M 50/107 - Primary casings, jackets or wrappings of a single cell or a single battery characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
• H01M 50/167 - Lids or covers characterised by the methods of assembling casings with lids by crimping
• H01M 50/213 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
• H01M 50/249 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
• H01M 50/507 - Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising an arrangement of two or more busbars within a container structure, e.g. busbar modules
• H01M 50/559 - Terminals adapted for cells having curved cross-section, e.g. round, elliptic or button cells
• H01M 50/583 - Devices or arrangements for the interruption of current in response to current, e.g. fuses

Abstract

Disclosed is an electrode assembly, a battery, and a battery pack and a vehicle including the same. In the electrode assembly, a first electrode, a second electrode, and a separator interposed therebetween are wound based on a winding axis to define a core and an outer circumference. The first electrode includes a first active material portion coated with an active material layer and a first uncoated portion not coated with an active material layer along a winding direction. At least a part of the first uncoated portion is defined as an electrode tab by itself. The first uncoated portion includes a first portion adjacent to the core of the electrode assembly, a second portion adjacent to the outer circumference of the electrode assembly, and a third portion interposed between the first portion and the second portion. The first portion or the second portion has a smaller height than the third portion in the winding axis direction.

IPC Classes  ?

• H01M 50/536 - Electrode connections inside a battery casing characterised by the method of fixing the leads to the electrodes, e.g. by welding
• H01M 10/04 - Construction or manufacture in general
• H01M 50/107 - Primary casings, jackets or wrappings of a single cell or a single battery characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
• H01M 50/213 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
• H01M 50/507 - Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising an arrangement of two or more busbars within a container structure, e.g. busbar modules
• H01M 50/538 - Connection of several leads or tabs of wound or folded electrode stacks
• H01M 50/567 - Terminals characterised by their manufacturing process by fixing means, e.g. screws, rivets or bolts

Abstract

Disclosed herein relates to an electrolyte composition and a lithium secondary battery including the same, wherein the electrolyte composition can not only effectively reduce gas generated during charging and discharging of the lithium secondary battery by including one or more electrolyte additives of a chemical compound represented by Formula 1 or a chemical compound represented by Formula 2, but also has the advantage of strengthening the SEI layer on the electrode surface, thereby improving the storage characteristics and life characteristics at high temperatures.

IPC Classes  ?

• H01M 10/0567 - Liquid materials characterised by the additives
• H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries

Abstract

A positive electrode active material for a lithium secondary battery has secondary micro particles having an average particle size (D50) of 1 to 10 μm formed by agglomeration of primary macro particles having an average particle size (D50) of 0.5 to 3 μm and a lithium-M oxide coating layer on all or part of a surface, wherein M is at least one selected from the group consisting of boron, cobalt, manganese and magnesium. The secondary macro particles have an average particle size (D50) of 5 to 20 μm formed by agglomeration of primary micro particles having a smaller average particle size (D50) than the primary macro particles. The primary macro particles and the primary micro particles are represented by LiaNi1−b−c−dCobMncQdO2+δ, wherein 1.0≤a≤1.5, 0

IPC Classes  ?

• C01G 53/00 - Compounds of nickel
• H01M 10/052 - Li-accumulators

Abstract

A negative electrode composition, a negative electrode for a lithium secondary battery including the same, a lithium secondary battery, and a method for preparing the negative electrode composition are provided. The negative electrode composition comprises a silicon carbon composite, a graphite, and a negative electrode conductive material, wherein a BET specific surface area of the silicon carbon composite is larger than a BET specific surface area of the graphite.

IPC Classes  ?

• H01M 4/36 - Selection of substances as active materials, active masses, active liquids
• H01M 4/04 - Processes of manufacture in general
• H01M 4/38 - Selection of substances as active materials, active masses, active liquids of elements or alloys
• H01M 4/583 - Carbonaceous material, e.g. graphite-intercalation compounds or CFx
• H01M 10/04 - Construction or manufacture in general
• H01M 10/052 - Li-accumulators

Abstract

A method for preparing a carbon nanostructure including molybdenum disulfide is discussed. More particularly, a method is discussed for preparing a carbon nanostructure in which molybdenum disulfide is located on the surface by melt diffusion and heat treatment of a mixture of a molybdenum precursor, a carbon nanostructure, and sulfur. Also, a positive electrode of a lithium secondary battery including a carbon nanostructure including molybdenum disulfide as an additive, and a lithium secondary battery including the same. In the case of the lithium secondary battery including the positive electrode to which the carbon nanostructure including molybdenum disulfide was applied, the carbon nanostructure including the molybdenum disulfide adsorbs lithium polysulfide (LiPS) generated during the charging/discharging process of the lithium secondary battery, thereby increasing the charging/discharging efficiency of the battery and improving lifetime characteristics.

IPC Classes  ?

• H01M 4/1397 - Processes of manufacture of electrodes based on inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy
• C01G 39/06 - Sulfides
• H01M 4/04 - Processes of manufacture in general
• H01M 4/136 - Electrodes based on inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy
• H01M 4/36 - Selection of substances as active materials, active masses, active liquids
• H01M 4/583 - Carbonaceous material, e.g. graphite-intercalation compounds or CFx
• H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries

Abstract

A jelly-roll electrode assembly includes a cathode sheet, an anode sheet, and a separator interposed between the cathode sheet and the anode sheet, the cathode sheet, the anode sheet, and the separator being wound together. An outermost side of the jelly-roll electrode assembly includes a non-coated portion on which no active material layer is provided on the anode sheet. A swelling tape is located on an inner surface of the non-coated portion of the anode sheet facing toward a central part of the jelly-roll electrode assembly. One or more embossments or wrinkles are provided in the swelling tape.

IPC Classes  ?

• H01M 50/595 - Tapes
• H01M 10/04 - Construction or manufacture in general

Abstract

A battery module includes a battery cell assembly formed by stacking two or more columns of longitudinal unit cells, each of which is composed of two or more battery cells arranged in a line in a longitudinal direction and connected, a hollow center guard disposed at a connection position of end portions of the battery cells, which face each other in the longitudinal direction, in the longitudinal unit cell, and a module case in which the battery cell assembly and the hollow center guard are accommodated, wherein a first venting hole communicating with a hollow of the hollow center guard is provided in a sidewall of the hollow center guard, and a second venting hole communicating with the hollow of the hollow center guard is provided in the module case configured to cover an upper portion of the hollow center guard. A battery pack includes the battery module.

IPC Classes  ?

• H01M 50/383 - Flame arresting or ignition-preventing means
• H01M 10/653 - Means for temperature control structurally associated with the cells characterised by electrically insulating or thermally conductive materials
• H01M 50/204 - Racks, modules or packs for multiple batteries or multiple cells
• H01M 50/289 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
• H01M 50/30 - Arrangements for facilitating escape of gases
• H01M 50/505 - Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising a single busbar

Abstract

The present invention provides a battery safety test device includes: a mechanical switch element having one end connected to either a battery positive or negative electrode and the other end connected to an electronic switching element; the electronic switching element having one end connected to the mechanical switch element and the other end connected to the other of the battery positive or negative electrode; a voltage sensor for measuring a voltage of the battery after the mechanical switch element and the electronic switching element are turned on; and a current sensor for measuring a current of the battery after the mechanical switch element and the electronic switching element are turned on.

IPC Classes  ?

• H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
• G01R 31/36 - Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
• G01R 31/3842 - Arrangements for monitoring battery or accumulator variables, e.g. SoC combining voltage and current measurements
• G01R 31/385 - Arrangements for measuring battery or accumulator variables
• H01M 10/48 - Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
• H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries

Abstract

An energy storage system, connected with a photovoltaic system and a power grid, may include a plurality of DC/DC converters for controlling a plurality of battery racks, a power conversion system for controlling power in connection with the plurality of DC/DC converters and the photovoltaic system, and a power management controller for determining operating modes and outputting references of the power conversion system and the plurality of DC/DC converters according to a state of the photovoltaic system.

IPC Classes  ?

• H02J 3/32 - Arrangements for balancing the load in a network by storage of energy using batteries with converting means
• H02J 3/38 - Arrangements for parallelly feeding a single network by two or more generators, converters or transformers
• H02J 7/35 - Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells

Abstract

A battery cell internal pressure measurement apparatus for measuring an internal pressure of at least one battery cell according to an example embodiment of the present disclosure may include a jig housing configured to accommodate the at least one battery cell, and a jig cover coupled to the jig housing and configured to cover the at least one battery cell. The at least one cell groove into which the at least one battery cell is inserted may be formed at a bottom of the jig housing.

IPC Classes  ?

• G01L 19/00 - MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE - Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges

Abstract

A battery pack includes battery modules having a plurality of battery cells; and a pack frame for housing the battery modules. Inside the pack frame, the battery modules are arranged in a row along the width direction to form a battery module group, and inside the battery module, the battery cells are stacked along the width direction to form a battery cell stack. A cover member for covering the entire upper surface of the battery module group is located between the upper surface of the battery module group and the pack frame.

IPC Classes  ?

• H01M 50/291 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs characterised by their shape
• H01M 50/143 - Fireproof; Explosion-proof
• H01M 50/211 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for pouch cells
• H01M 50/271 - Lids or covers for the racks or secondary casings

Abstract

A contact device and a characteristic measuring device including the same includes: a body part in which a connection hole having a shape passing through the body part from one surface toward the other surface is defined; a connection part including a first shaft provided at one side and connected to the connection hole, and a second shaft provided to be parallel to the first shaft at the other side; and a contact part having a coupling hole, the coupling hole having a shape passing through the contact part so that the second shaft is coupled therethrough, and the other side provided with a terminal in contact with the cell. The connection part is rotatable with respect to the body part by the first shaft, and the contact part is rotatable with respect to the connection part by the second shaft.

IPC Classes  ?

• G01R 31/12 - Testing dielectric strength or breakdown voltage

Abstract

A device for predicting the physical properties of a mixture including a plurality of materials is disclosed. The device may comprise: a memory in which a first AI model trained to output first feature data of material information, and a second AI model trained to output physical property prediction information of the first feature data are stored; and a processor for executing the first AI model and the second AI model, wherein the processor may input, into the first AI model, material information of each of the plurality of materials to acquire first feature data of each of the plurality of materials, and input the first feature data into the second AI model to acquire physical property prediction information of the mixture.

IPC Classes  ?

• G16C 20/30 - Prediction of properties of chemical compounds, compositions or mixtures
• G16C 20/20 - Identification of molecular entities, parts thereof or of chemical compositions
• G16C 20/70 - Machine learning, data mining or chemometrics

Abstract

A battery pack according to the present invention comprises: a plurality of battery modules; a pack tray in which the battery module is accommodated and the top thereof is provided in an open form; a pack cover arranged on the pack tray such that an accommodation space, in which the battery module is accommodated, is sealed; and a current-passing and -blocking unit which is arranged between the pack tray and the pack cover so as to pass current to and support a module connection bus-bar for connecting the battery modules to each other, and which disconnects the module connection bus-bar so as to block the electrical connection between the battery modules if a thermal event occurs.

IPC Classes  ?

• H01M 50/581 - Devices or arrangements for the interruption of current in response to temperature
• H01M 50/24 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
• H01M 50/244 - Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
• H01M 50/502 - Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
• H01M 50/249 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains

Abstract

The present invention relates to a battery cell, a method for manufacturing same, and a battery module comprising same. A battery cell according to one embodiment of the present invention comprises: an electrode assembly; a case for accommodating the electrode assembly; a plating layer formed on the outer surface of the case; a scratched area formed by removing a partial area of the plating layer; and a porous coating layer provided to surround the scratched area and including a sacrificial metal having a greater ionization tendency than the plating layer.

IPC Classes  ?

• H01M 50/145 - Primary casings, jackets or wrappings of a single cell or a single battery for protecting against damage caused by external factors for protecting against corrosion
• H01M 50/124 - Primary casings, jackets or wrappings of a single cell or a single battery characterised by the material having a layered structure
• H01M 50/119 - Metals
• H01M 50/682 - Containers for storing liquids; Delivery conduits therefor accommodated in battery or cell casings
• H01M 50/256 - Carrying devices, e.g. belts
• H01M 10/6567 - Liquids
• H01M 10/613 - Cooling or keeping cold

Abstract

A negative electrode composition, a negative electrode for a lithium secondary battery, comprising same, a lithium secondary battery, and a preparation method for the negative electrode composition are provided. The negative electrode composition comprises a silicon-carbon composite, graphite, and a negative electrode conductive agent, wherein the BET specific surface area of the silicon-carbon composite is larger than the BET specific surface area of the graphite.

IPC Classes  ?

• H01M 4/36 - Selection of substances as active materials, active masses, active liquids
• H01M 4/587 - Carbonaceous material, e.g. graphite-intercalation compounds or CFx for inserting or intercalating light metals
• H01M 4/583 - Carbonaceous material, e.g. graphite-intercalation compounds or CFx
• H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
• H01M 4/133 - Electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
• H01M 10/052 - Li-accumulators
• H01M 4/02 - Electrodes composed of, or comprising, active material

Abstract

A molding device according to an embodiment of the present invention is capable of molding a pouch film. The molding device may comprise: a die having a first opening formed therein; a stripper which fixes a pouch film on the upper side of the die and has a second opening formed therein; a sub-die which has a height that is relative to the die and varies within the first opening; a punch which presses the pouch film through the second opening and faces the sub-die; and a sub-punch which presses the pouch film into between the inner circumference of the first opening and the outer circumference of the sub-die through between the inner circumference of the second opening and the outer circumference of the punch.

IPC Classes  ?

• B29C 43/14 - Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles in several steps
• H01M 50/105 - Pouches or flexible bags
• B29C 43/36 - Moulds for making articles of definite length, i.e. discrete articles
• B29L 31/00 - Other particular articles

Abstract

β505050) is 8 ㎛ to 20 ㎛, and the porosity of the cathode active material layer is 19 % to 23 %.

IPC Classes  ?

• H01M 4/36 - Selection of substances as active materials, active masses, active liquids
• H01M 4/48 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
• H01M 4/587 - Carbonaceous material, e.g. graphite-intercalation compounds or CFx for inserting or intercalating light metals
• H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
• H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
• H01M 10/052 - Li-accumulators
• H01M 4/02 - Electrodes composed of, or comprising, active material

Abstract

An embodiment of the present invention provides an electrode assembly, and a secondary battery, a battery pack, and a vehicle comprising same, the electrode assembly having a structure in which a positive electrode, a separator, and a negative electrode are stacked and wound, wherein the negative electrode includes an in-tab provided at an end, among the ends in the direction perpendicular to the winding axis of the electrode assembly, located in the winding core, and the in-tab is provided to surround more than 50% of the surface facing the winding core of the negative electrode.

IPC Classes  ?

• H01M 10/0587 - Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
• H01M 50/531 - Electrode connections inside a battery casing
• H01M 50/533 - Electrode connections inside a battery casing characterised by the shape of the leads or tabs
• H01M 10/04 - Construction or manufacture in general

Abstract

Provided is a separator for a secondary battery having excellent dimensional stability even at high temperatures when in a wet state having an electrolyte injected. According to one aspect of the present invention, provided is a separator for a secondary battery, comprising: a porous substrate; and a functional coating layer disposed on at least one surface of the porous substrate, wherein the functional coating layer includes a first coating layer and a second coating layer disposed on the first coating layer, the first coating layer includes inorganic particles, an acrylic binder, and polydopamine, and the second coating layer includes polydopamine.

IPC Classes  ?

• H01M 50/451 - Separators, membranes or diaphragms characterised by the material having a layered structure comprising layers of only organic material and layers containing inorganic material
• H01M 50/446 - Composite material consisting of a mixture of organic and inorganic materials
• H01M 50/403 - Manufacturing processes of separators, membranes or diaphragms
• H01M 50/46 - Separators, membranes or diaphragms characterised by their combination with electrodes
• H01M 50/414 - Synthetic resins, e.g. .thermoplastics or thermosetting resins
• H01M 50/443 - Particulate material
• H01M 50/491 - Porosity

Abstract

A secondary battery is provided that can increase the adhesion between a negative electrode and a separator on an electrolyte solution. According to one aspect of the present invention, provided is a secondary battery comprising: a negative electrode; a positive electrode; a separator interposed between the negative electrode and the positive electrode and including a porous substrate and a coating layer disposed on at least one surface of the porous substrate; and an electrolyte solution, wherein the negative electrode comprises a binder polymer including a first repeating unit, the coating layer includes a second repeating unit, and the first repeating unit and the second repeating unit are combined with each other.

IPC Classes  ?

• H01M 50/46 - Separators, membranes or diaphragms characterised by their combination with electrodes
• H01M 50/449 - Separators, membranes or diaphragms characterised by the material having a layered structure
• H01M 50/414 - Synthetic resins, e.g. .thermoplastics or thermosetting resins
• H01M 50/489 - Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
• H01M 50/403 - Manufacturing processes of separators, membranes or diaphragms
• H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
• H01M 4/134 - Electrodes based on metals, Si or alloys
• H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
• H01M 4/38 - Selection of substances as active materials, active masses, active liquids of elements or alloys
• H01M 10/058 - Construction or manufacture

Abstract

The present invention relates to a separator for an electrochemical device comprising a lithium manganese-based active material, the separator comprising: a porous polymer substrate; and a porous coating layer laminated on at least one side of the porous polymer substrate and comprising inorganic particles and a polymer binder, wherein the inorganic particles are made by a sulfonic acid group that is introduced onto the surface of a metal oxide or metal hydroxide, and at least a part of the sulfonic acid group is made by hydrogen cations that are replaced with lithium cations.

IPC Classes  ?

• H01M 50/451 - Separators, membranes or diaphragms characterised by the material having a layered structure comprising layers of only organic material and layers containing inorganic material
• H01M 50/446 - Composite material consisting of a mixture of organic and inorganic materials
• H01M 50/489 - Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
• H01M 50/46 - Separators, membranes or diaphragms characterised by their combination with electrodes
• H01G 11/52 - Separators

Abstract

The present invention relates to a negative electrode active material, a negative electrode including same, a secondary battery including same, and a method for preparing the negative electrode active material.

IPC Classes  ?

• H01M 4/36 - Selection of substances as active materials, active masses, active liquids
• H01M 4/48 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
• H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
• H01M 10/052 - Li-accumulators
• H01M 4/02 - Electrodes composed of, or comprising, active material

Abstract

The present invention relates to a battery pack having improved fixation strength of an accommodated battery module and a device including same and, specifically, to a battery pack having improved fixation strength of an accommodated battery module and a device including same, the battery pack comprising: a battery module having a plurality of battery cells accommodated therein; a lower pack case having one open surface and having an accommodation space for accommodating the battery module formed therein; and an upper pack case located on the one open surface of the lower pack case, wherein a first extension portion extending a predetermined length while being parallel and spaced apart from the outer surface of the battery module is formed on the outer surface of the battery module, a second extension portion extending in the direction of the first extension portion is formed on the inner surface of the lower pack case, and a second accommodation portion extending parallel to the second extension portion and having a shape recessed to a predetermined depth is formed.

IPC Classes  ?

• H01M 50/209 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells

Abstract

The present invention relates to a circuit board test terminal. Provided is a circuit board test terminal which comprises a board part and an extension part extending from the board part and connected to a test point of the circuit board, wherein the board part includes: a plate unit supporting a lower portion; a partition unit divided into a plurality of compartments on the plate unit and formed to a predetermined height; and terminal units arranged in the divided compartments, the terminal units being brought into contact with a test probe for testing the circuit board.

IPC Classes  ?

• G01R 31/28 - Testing of electronic circuits, e.g. by signal tracer
• G01R 1/04 - Housings; Supporting members; Arrangements of terminals

Abstract

An apparatus for automatically testing a degree of secession of an electrode active material according to an example of the present invention comprises: a tape-supplying member for supplying a tape; a tape-adhesion member for pressing the tape to adhere to the electrode; and a testing unit for checking a degree of secession of the active material on the electrode, wherein the electrode and the tape are pressed together by the tape-adhesion member and then separated, thereby creating secession of the active material of the electrode.

IPC Classes  ?

• G01N 19/04 - Measuring adhesive force between materials, e.g. of sealing tape, of coating
• G01N 19/08 - Detecting presence of flaws or irregularities
• H01M 4/04 - Processes of manufacture in general

Abstract

A battery management device according to one embodiment disclosed in the present document may comprise: one or more capacitors connected to each of one or more batteries; and a controller for applying a current to the one or more capacitors and precharging same, measuring the voltage of each of the one or more capacitors, and controlling the impedance measurement of the one or more batteries on the basis of whether the voltage of the one or more capacitors is within a threshold range.

IPC Classes  ?

• G01R 31/389 - Measuring internal impedance, internal conductance or related variables
• G01R 31/367 - Software therefor, e.g. for battery testing using modelling or look-up tables
• G01R 19/165 - Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
• G01R 31/396 - Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
• G01N 27/02 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
• H01M 10/052 - Li-accumulators
• H01M 10/48 - Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte

Abstract

A monitoring system according to one embodiment disclosed in the present document may comprise: a data management unit which acquires, over time, driving data of a motor related to a battery-manufacturing device, and which applies the driving data to an artificial intelligence model so as to extract parameters indicating characteristics of the driving data; and a controller, which generates, on the basis of the parameters, reference information for managing the state of the motor.

IPC Classes  ?

• G01R 31/34 - Testing dynamo-electric machines
• G01R 31/392 - Determining battery ageing or deterioration, e.g. state of health
• G01R 31/385 - Arrangements for measuring battery or accumulator variables
• G06N 3/08 - Learning methods

Abstract

Provided is an electrode assembly including a negative electrode structure and multiple positive electrodes. The negative electrode structure includes a first and a second separator and a lithium metal layer interposed between the first and the second separator. The negative electrode structure is divided into multiple stack parts, multiple folding parts, and a first and a second wrapping part according to a position in an electrode assembly. In the negative electrode structure, stack parts and folding parts are alternatively disposed between a first and a second wrapping part disposed at the ends, respectively, and the first and the second wrapping part are in contact with the stack parts, respectively. The electrode assembly has multiple stack parts sequentially arranged side by side in the thickness direction by folding parts, and has at least one positive electrode between stack parts adjacent to each other in the thickness direction. The electrode assembly has a structure in which a second wrapping part is disposed to be in contact with a first wrapping part, and outer surfaces thereof in the thickness direction and the longitudinal direction are surrounded by the second wrapping part or one or more of the second wrapping part, the first wrapping part, and an outmost stack part.

IPC Classes  ?

• H01M 10/0583 - Construction or manufacture of accumulators with folded construction elements except wound ones, i.e. folded positive or negative electrodes or separators, e.g. with ‘’Z’’-shaped electrodes or separators
• H01M 4/134 - Electrodes based on metals, Si or alloys
• H01M 10/052 - Li-accumulators

Abstract

A battery pack according to an embodiment of the present invention comprises: a battery module including a cell assembly formed by stacking a plurality of battery cells and a module frame accommodating the cell assembly; a pack housing in which at least one battery module is mounted; and a cooling tube assembly mounted in the pack housing, wherein one end of the battery module is arranged to overlap with the cooling tube assembly.

IPC Classes  ?

• H01M 10/6556 - Solid parts with flow channel passages or pipes for heat exchange
• H01M 10/6567 - Liquids
• H01M 10/6568 - Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
• H01M 10/613 - Cooling or keeping cold
• H01M 50/682 - Containers for storing liquids; Delivery conduits therefor accommodated in battery or cell casings
• H01M 50/271 - Lids or covers for the racks or secondary casings
• H01M 50/211 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for pouch cells

Abstract

The present invention relates to a battery pack in which battery modules are accommodated, the battery pack comprising: a pack case providing a space in which battery modules are seated; an upper cover coupled to the pack case so as to cover the top of the battery modules seated in the pack case; and a screen cover interposed between the pack case and the upper cover, wherein the screen cover includes through-holes which are open to expose the top of the battery modules to the outside.

IPC Classes  ?

• H01M 50/30 - Arrangements for facilitating escape of gases
• H01M 50/342 - Non-re-sealable arrangements
• H01M 50/375 - Vent means sensitive to or responsive to temperature
• H01M 50/24 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
• H01M 50/289 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs

Abstract

Disclosed in the present specification are an electrode and use thereof. The electrode comprises a polymer layer showing a positive temperature coefficient (PTC) effect and an oxidation potential that are controlled to suit the purpose. The electrode exhibits excellent electrical properties, such as low resistance, in a normal state and thus does not affect, or even improves, the performance and operation of a secondary battery, and can ensure stability in an abnormal state. Disclosed in the present specification is also use of the electrode.

IPC Classes  ?

• H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
• H01M 4/66 - Selection of materials
• C08G 61/12 - Macromolecular compounds containing atoms other than carbon in the main chain of the macromolecule
• C08G 65/326 - Polymers modified by chemical after-treatment with inorganic compounds containing sulfur
• H01M 10/052 - Li-accumulators
• H01M 4/02 - Electrodes composed of, or comprising, active material

Abstract

Disclosed is an electrode assembly, a battery, and a battery pack and a vehicle including the same. In the electrode assembly, a first electrode, a second electrode, and a separator interposed therebetween are wound based on an axis to define a core and an outer circumference. The first electrode includes an uncoated portion at a long side end thereof and exposed out of the separator along a winding axis direction of the electrode assembly. A part of the uncoated portion is bent in a radial direction of the electrode assembly to form a bending surface region that includes overlapping layers of the uncoated portion, and in a partial region of the bending surface region, the number of stacked layers of the uncoated portion is 10 or more in the winding axis direction of the electrode assembly.

IPC Classes  ?

• H01M 10/0587 - Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
• H01M 10/04 - Construction or manufacture in general
• H01M 10/052 - Li-accumulators

Abstract

A cylindrical battery includes an electrode assembly having a first uncoated portion and a second uncoated defined as an electrode tab; a battery housing accommodating the electrode assembly through an opening and electrically connected to the second uncoated portion; an electrode terminal riveted through a perforated hole formed in a closed portion of the battery housing and electrically connected to the first uncoated portion; an insulating gasket interposed between the electrode terminal and the perforated hole; and a cap plate configured to cover the opening of the battery housing. The electrode terminal includes a body portion; an outer flange portion extending along an outer surface of the closed portion exposed through the outer surface of the closed portion; an inner flange portion extending toward an inner surface of the closed portion exposed through the inner surface; and a flat portion provided on an inner side of the inner flange portion.

IPC Classes  ?

• H01M 50/533 - Electrode connections inside a battery casing characterised by the shape of the leads or tabs
• H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
• H01M 10/04 - Construction or manufacture in general
• H01M 50/186 - Sealing members characterised by the disposition of the sealing members
• H01M 50/213 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
• H01M 50/538 - Connection of several leads or tabs of wound or folded electrode stacks
• H01M 50/567 - Terminals characterised by their manufacturing process by fixing means, e.g. screws, rivets or bolts

Abstract

A battery pack includes a plurality of battery modules each including one or more battery cells to store and release energy, each battery module further including an intake portion and an exhaust portion, an intake duct including an intake channel and communicating with the intake portion of each of the plurality of battery modules, and an exhaust duct including an exhaust channel and communicating with the exhaust portion of each of the plurality of battery modules. Each of the plurality of battery modules further includes an opening/closing member configured to close the intake portion when internal pressure increases.

IPC Classes  ?

• H01M 50/367 - Internal gas exhaust passages forming part of the battery cover or case; Double cover vent systems
• H01M 10/613 - Cooling or keeping cold
• H01M 10/647 - Prismatic or flat cells, e.g. pouch cells
• H01M 10/6568 - Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
• H01M 50/211 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for pouch cells
• H01M 50/507 - Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising an arrangement of two or more busbars within a container structure, e.g. busbar modules

Abstract

Discussed is a battery pack case that may include a first case and a second case configured such that outer peripheries of the first case and the second case are coupled to each other by ultrasonic welding, wherein the outer periphery of the first case comprises a flat portion and a projecting portion formed as a result of a middle of the first case in a thickness direction projecting from the flat portion. Further, the outer periphery of the second case comprises a receiving portion configured to be fused with the projecting portion and an outer guide portion projecting from the receiving portion so as to face the flat portion, and a control rib projecting from at least a part of the flat portion is provided.

IPC Classes  ?

• H01M 50/24 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
• B23K 20/10 - Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating making use of vibrations, e.g. ultrasonic welding
• H01M 50/244 - Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method

Abstract

A foil tab forming apparatus forms at least one foil tab of a positive electrode foil tab and a negative electrode foil tab respectively provided at a top portion and a bottom portion of an electrode assembly. The foil tab forming apparatus includes a pre-forming jig configured to bend the foil tab by pressing the foil tab, while moving in a direction from an outer circumferential portion of the electrode assembly to a winding center portion of the electrode assembly and a forming jig configured to press the foil tab that has been primarily bent by the pre-forming jig, by moving along a direction parallel to a winding axis of the electrode assembly.

IPC Classes  ?

• B21D 11/10 - Bending specially adapted to produce specific articles, e.g. leaf springs
• B21D 11/22 - Auxiliary equipment, e.g. positioning devices
• H01M 10/04 - Construction or manufacture in general
• H01M 50/533 - Electrode connections inside a battery casing characterised by the shape of the leads or tabs
• H01M 50/538 - Connection of several leads or tabs of wound or folded electrode stacks

Abstract

A battery includes an electrode assembly including a first electrode, a second electrode and a separator between the first electrode and the second electrode wound around a winding axis to define a core and an outer circumferential surface, the first electrode including a first uncoated region in which an active material layer is not coated along a winding direction; a housing accommodating the electrode assembly through an open portion at a lower end thereof; a first current collector coupled to the first uncoated region and disposed in the housing; a cap to cover the open portion; and a spacer between the first current collector and the cap and having a height corresponding to a distance between the first current collector and the cap.

IPC Classes  ?

• H01M 50/474 - Spacing elements inside cells other than separators, membranes or diaphragms; Manufacturing processes thereof characterised by their position inside the cells
• H01M 10/04 - Construction or manufacture in general

Abstract

A battery module has an improved structure to improve safety when a thermal event occurs in the battery module. A battery module includes a cell assembly including one or more battery cells, a module case having an inner space in which the cell assembly is accommodated, and an expansion member located in the module case, and configured to fill at least a part of an empty space in the module case by being expanded in volume when heat is supplied.

IPC Classes  ?

• H01M 50/143 - Fireproof; Explosion-proof
• H01M 10/659 - Means for temperature control structurally associated with the cells by heat storage or buffering, e.g. heat capacity or liquid-solid phase changes or transition
• H01M 50/209 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
• H01M 50/249 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
• H01M 50/375 - Vent means sensitive to or responsive to temperature

Abstract

Provided are an electrode assembly, a battery, and a battery pack and vehicle including the same. An electrode assembly, in which a first electrode, a second electrode, and a separator interposed therebetween are wound about an axis to define a core and an outer circumferential surface. At least one of the first electrode and the second electrode includes, at a long side end portion, an uncoated portion exposed beyond the separator in a direction of the axis. At least a part of the uncoated portion is bent in a radial direction of the electrode assembly to define a bent surface region having overlapping layers of the uncoated portion. The bent surface region includes a welding target region having a number of the overlapping layers of the uncoated portion, and the welding target region extends along a radial direction of the electrode assembly.

IPC Classes  ?

• H01M 50/538 - Connection of several leads or tabs of wound or folded electrode stacks
• H01M 10/04 - Construction or manufacture in general
• H01M 50/167 - Lids or covers characterised by the methods of assembling casings with lids by crimping
• H01M 50/213 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
• H01M 50/249 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
• H01M 50/516 - Methods for interconnecting adjacent batteries or cells by welding, soldering or brazing
• H01M 50/559 - Terminals adapted for cells having curved cross-section, e.g. round, elliptic or button cells

Abstract

A battery includes an electrode assembly including a first uncoated region and a second uncoated region; a battery housing accommodating the electrode assembly and electrically connected to the second uncoated region; a cap to cover an open portion on bottom of the battery housing; a first electrode terminal passing through a partially closed portion of the battery housing and being electrically isolated from the battery housing; and a first current collector coupled to the first uncoated region and connected to the first electrode terminal.

IPC Classes  ?

• H01M 50/55 - Terminals characterised by the disposition of the terminals on the cells on the same side of the cell
• H01M 10/04 - Construction or manufacture in general
• H01M 50/107 - Primary casings, jackets or wrappings of a single cell or a single battery characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
• H01M 50/152 - Lids or covers characterised by their shape for cells having curved cross-section, e.g. round or elliptic
• H01M 50/167 - Lids or covers characterised by the methods of assembling casings with lids by crimping
• H01M 50/179 - Arrangements of electric connectors penetrating the casing adapted for the shape of the cells for cells having curved cross-section, e.g. round or elliptic
• H01M 50/213 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
• H01M 50/503 - Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the shape of the interconnectors
• H01M 50/509 - Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the type of connection, e.g. mixed connections
• H01M 50/533 - Electrode connections inside a battery casing characterised by the shape of the leads or tabs
• H01M 50/536 - Electrode connections inside a battery casing characterised by the method of fixing the leads to the electrodes, e.g. by welding
• H01M 50/545 - Terminals formed by the casing of the cells
• H01M 50/559 - Terminals adapted for cells having curved cross-section, e.g. round, elliptic or button cells
• H01M 50/567 - Terminals characterised by their manufacturing process by fixing means, e.g. screws, rivets or bolts
• H01M 50/586 - Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries inside the batteries, e.g. incorrect connections of electrodes
• H01M 50/59 - Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries characterised by the protection means

Abstract

A lithium secondary battery, and a method of making the same, including a positive electrode, a separator and a negative electrode, in which the positive electrode includes a lithium composite transition metal compound including nickel (Ni) and cobalt (Co), the negative electrode includes a silicon-based active material and a carbon-based active material, the efficiency constants of the silicon-based active material and the carbon-based active material and the efficiency constant of the lithium composite transition metal compound satisfy an efficiency balance defined by Equation 1.

IPC Classes  ?

• H01M 10/052 - Li-accumulators
• G01R 31/385 - Arrangements for measuring battery or accumulator variables
• H01M 4/36 - Selection of substances as active materials, active masses, active liquids
• H01M 4/48 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
• H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
• H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
• H01M 4/583 - Carbonaceous material, e.g. graphite-intercalation compounds or CFx

Abstract

An electrode assembly includes a cathode, an anode, and a separator interposed between the cathode and the anode. The cathode and the anode each have a flat portion, in where a thickness of an active material layer is constant and an inclined portion, in which the thickness of the active material layer decreases from the flat portion. An insulating coating layer is formed on the inclined portion of the cathode. The flat portion of the cathode has a porosity of 15 to 25%, and the inclined portion of the cathode has a porosity of 20 to 30%.

IPC Classes  ?

• H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
• H01M 4/04 - Processes of manufacture in general
• H01M 10/052 - Li-accumulators

Abstract

A secondary battery having improved impact resistance is provided. The secondary battery includes a battery case comprising an electrode assembly and an electrolyte accommodated in an accommodation part of the battery case. The secondary battery satisfies following Equation (1): Equation (1): W/S≤42. In Equation (1), W is an amount of electrolyte per unit capacity of the secondary battery [unit: g/Ah], and S is a product of a total length [unit: m] and a full width [unit: m] of the electrode assembly.

IPC Classes  ?

• H01M 50/14 - Primary casings, jackets or wrappings of a single cell or a single battery for protecting against damage caused by external factors
• H01M 50/105 - Pouches or flexible bags
• H01M 50/126 - Primary casings, jackets or wrappings of a single cell or a single battery characterised by the material having a layered structure comprising three or more layers

Abstract

A battery diagnosis apparatus according to one embodiment of the present invention is located in a battery system including one or more batteries, and may comprise: at least one processor; and memory storing at least one command executed through the at least one processor. The at least one command may comprise: a command for collecting charging state information about the battery in a standby mode state of the battery system; a command for calculating the power change amount of the battery during a standby mode maintenance period on the basis of the collected charging state information and pre-stored initial charging state information; and a command for comparing the calculated power change amount and an expected discharge power amount of the battery and determining, on the basis of the comparison result, whether a leakage current is present in the battery system.

IPC Classes  ?

• G01R 31/392 - Determining battery ageing or deterioration, e.g. state of health
• G01R 31/367 - Software therefor, e.g. for battery testing using modelling or look-up tables
• G01R 22/06 - Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
• G01R 31/382 - Arrangements for monitoring battery or accumulator variables, e.g. SoC
• G01R 31/396 - Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
• G01R 31/52 - Testing for short-circuits, leakage current or ground faults
• G01R 31/56 - Testing of electric apparatus

Abstract

A battery pack according to one embodiment disclosed in the present document comprises: a battery module including a plurality of battery cell units connected in parallel; and a main power line electrically connected to the plurality of battery cell units inside the battery module, wherein a first battery cell unit from among the plurality of battery cell units includes: a first battery cell; a first cell busbar for electrically connecting each of the cathode of the first battery cell and the anode of the first battery cell to the main power line; and a first switch connected in parallel to the first battery cell, and the battery pack can include: a sensor unit for sensing the state of a plurality of battery cells included in the battery module; and a control unit for closing the first switch such that the first cell busbar is cut off if failure of the first battery cell is identified on the basis of the state of the first battery cell sensed through the sensor unit.

IPC Classes  ?

• H01M 50/574 - Devices or arrangements for the interruption of current
• H01M 50/569 - Constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals
• H01M 50/502 - Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
• H01M 50/581 - Devices or arrangements for the interruption of current in response to temperature
• H01M 50/583 - Devices or arrangements for the interruption of current in response to current, e.g. fuses

Abstract

A battery module of the present invention comprises an accommodation portion in which an electrode assembly is accommodated, and a cell stack including a plurality of battery cells stacked in a vertical direction and faced by the accommodation portion, the battery cells including a first edge portion and a second edge portion along the longitudinal direction and a third edge portion and a fourth edge portion along the width direction, around the accommodation portion, wherein the battery cells include a resealing portion on the first edge portion, and the second edge portion includes a sealing portion or an unsealed portion, and the first edge portion and the second edge portion are alternately positioned along the vertical direction on both sides of the cell stack.

IPC Classes  ?

• H01M 50/24 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
• H01M 50/143 - Fireproof; Explosion-proof
• H01M 50/383 - Flame arresting or ignition-preventing means
• H01M 50/105 - Pouches or flexible bags
• H01M 50/211 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for pouch cells
• H01M 50/251 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for stationary devices, e.g. power plant buffering or backup power supplies
• H01M 10/52 - Removing gases inside the secondary cell, e.g. by absorption

Abstract

A battery fast-charging device and method according to one embodiment of the present invention supply, to a battery, in addition to battery charging current acquired by considering only the temperature and real-time charging state of a conventional battery, compensation current acquired by considering current gain resulting from an initial charging state of a battery, and thus can reduce fast-charging time.

IPC Classes  ?

• H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
• H01M 10/44 - Methods for charging or discharging
• G01R 31/382 - Arrangements for monitoring battery or accumulator variables, e.g. SoC
• G01R 31/374 - Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC] with means for correcting the measurement for temperature or ageing

Abstract

The present invention relates to an integrated current sensing device and a battery pack including same, the integrated current sensing device comprising: a case having a plurality of slots; a sensor board having a sensor connector for connection of one or more current sensing modules which are mounted to the slots; and a main board having a means for control and communication with a BMS.

IPC Classes  ?

• G01R 31/364 - Battery terminal connectors with integrated measuring arrangements
• G01R 31/3842 - Arrangements for monitoring battery or accumulator variables, e.g. SoC combining voltage and current measurements
• G01R 31/371 - Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC] with remote indication, e.g. on external chargers
• G01R 15/20 - Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using galvano-magnetic devices, e.g. Hall-effect devices
• G01R 15/14 - Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
• G01R 19/257 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques using analogue/digital converters of the type with comparison of different reference values with the value of voltage or current, e.g. using step-by-step method
• G01R 19/00 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof
• G01R 19/165 - Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
• G01R 31/36 - Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
• G08B 21/18 - Status alarms

Abstract

The present invention relates to a BMS assembly comprising: a circuit board which has a first fastening hole for grounding; a first casing mold which accommodates the circuit board and includes a bushing portion formed inside a second fastening hole that is indented from the outside; and a fastening unit which penetrates the first fastening hole and the second fastening hole, presses an upper surface of the bushing portion, and contacts the circuit board with the bushing portion, wherein the bushing portion includes: a vertical portion formed in a direction parallel to the second fastening hole; and a horizontal portion extending from an end of the vertical portion in a direction perpendicular to a direction in which the vertical portion is formed, and the fastening unit grounds the circuit board by being electrically connected to a case accommodating a plurality of batteries therein.

IPC Classes  ?

• H05K 7/14 - Mounting supporting structure in casing or on frame or rack
• H05K 9/00 - Screening of apparatus or components against electric or magnetic fields
• H01M 50/284 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with incorporated circuit boards, e.g. printed circuit boards [PCB]

Abstract

The present invention relates to a composite electrolyte that prevents liquid leakage and exhibits improved mechanical properties and ionic conductivity, to a method for preparing same, and to a lithium secondary battery comprising same. The composite electrolyte may comprise: a liquid electrolyte and a cross-linked polymer of a monomer having a curable functional group; and an oxide-based solid electrolyte particle dispersed on the cross-linked polymer and having a particle diameter of more than 300 nm.

IPC Classes  ?

• H01M 10/056 - Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
• H01M 4/139 - Processes of manufacture
• H01M 10/052 - Li-accumulators

Abstract

22444), in a secondary particle form, wherein the lithium nickel-based active material in a single particle form contains 55 mol% or more of nickel in 100 mol% of metals excluding lithium.

IPC Classes  ?

• H01M 4/36 - Selection of substances as active materials, active masses, active liquids
• H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
• H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
• H01M 4/58 - Selection of substances as active materials, active masses, active liquids of polyanionic structures, e.g. phosphates, silicates or borates
• H01M 4/48 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
• H01M 4/38 - Selection of substances as active materials, active masses, active liquids of elements or alloys
• H01M 4/583 - Carbonaceous material, e.g. graphite-intercalation compounds or CFx
• H01M 10/052 - Li-accumulators
• H01M 4/02 - Electrodes composed of, or comprising, active material

Abstract

Disclosed is an all-solid-state battery manufacturing method in which respective unit cells undergo warm isostatic pressing, and then are stacked so that shorting occurring at side parts during operation of a battery is inhibited. The all-solid-state battery manufacturing method comprises the steps of: a) sequentially stacking a solid electrolyte and a cathode on one surface or each of two surfaces of an anode, thereby manufacturing a mono-cell or a bi-cell; b) performing warm isostatic pressing on the manufactured mono-cell or bi-cell; and c) stacking two or more mono-cells or bi-cells having undergone warm isostatic pressing and interposing a cathode current collector between one cell and another cell, thereby causing each of two surfaces of the interposed cathode current collector to come in contact with the cathode.

IPC Classes  ?

• H01M 10/0585 - Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
• H01M 4/139 - Processes of manufacture
• H01M 4/04 - Processes of manufacture in general
• H01M 10/052 - Li-accumulators
• H01M 10/0562 - Solid materials

Abstract

The present invention relates to a negative electrode for a secondary battery and a secondary battery comprising same, the negative electrode comprising: a current collector; and a negative electrode active material layer provided on the current collector and including a negative electrode active material and a conductive material, wherein the conductive material includes a linear conductive material and a planar conductive material, and the negative electrode active material layer has an oriented structure.

IPC Classes  ?

• H01M 4/13 - Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
• H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
• H01M 4/36 - Selection of substances as active materials, active masses, active liquids
• H01M 4/38 - Selection of substances as active materials, active masses, active liquids of elements or alloys
• H01M 4/48 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
• H01M 4/04 - Processes of manufacture in general
• H01M 4/02 - Electrodes composed of, or comprising, active material

Abstract

The present application relates to a filter apparatus and, more specifically, to a magnetic filter apparatus and use thereof. According to the present application, provided are a filter apparatus and use of the filter apparatus, the filter apparatus having a structure in which damage such as bending of a magnet does not occur even when a magnet that is longer and has stronger magnetic force is used in order to improve the processing efficiency of the magnetic filter apparatus and improve the efficiency of removal of foreign substances. The present application can also provide a filter apparatus and use of the filter apparatus, the filter apparatus having a structure enabling regular cleaning of the filter apparatus or replacement of a magnet with ease while preventing damage such as bending.

IPC Classes  ?

• B03C 1/28 - Magnetic plugs and dipsticks

Abstract

The present invention relates to a polymer solid electrolyte, and a method for producing same. The polymer solid electrolyte comprises: a polymer including a polyethylene oxide (PEO)-based copolymer that contains cross-linkable functional groups; and a polar compound, wherein at least a portion of the cross-linkable functional groups forms cross-links with each other, the polymer forms a three-dimensional network structure, and the polar compound is contained in the three-dimensional network structure in a gaseous state, or bound to the polymer chain.

IPC Classes  ?

• H01M 10/0565 - Polymeric materials, e.g. gel-type or solid-type
• H01M 10/052 - Li-accumulators
• C08G 65/24 - Epihalohydrins
• C08L 71/02 - Polyalkylene oxides
• C08J 5/22 - Films, membranes or diaphragms

Abstract

The present invention relates to a composite solid electrolyte and a manufacturing method therefor. The composite solid electrolyte includes: a polymer containing a polyethylene oxide (PEO)-based copolymer with crosslinkable functional groups; a ceramic compound; and a polar compound. At least part of the crosslinkable functional groups form crosslinks with each other to allow the polymer to form a three-dimensional network structure. The polar compound is either contained within the three-dimensional network structure in a gaseous state or bound to the polymer chains.

IPC Classes  ?

• H01M 10/056 - Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
• H01M 10/052 - Li-accumulators
• C08G 65/24 - Epihalohydrins
• C08L 71/02 - Polyalkylene oxides
• C08K 3/013 - Fillers, pigments or reinforcing additives
• C08K 3/22 - Oxides; Hydroxides of metals
• C08K 3/32 - Phosphorus-containing compounds
• C08K 3/34 - Silicon-containing compounds
• C08J 3/24 - Crosslinking, e.g. vulcanising, of macromolecules
• C08J 5/22 - Films, membranes or diaphragms