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BATTERY PACK WITH THERMOPLASTIC BARRIER BETWEEN CELLS

Resumen de: CN119487678A

The invention discloses a battery pack having: a cell group wherein the cell group comprises cells each defining a cylindrical body wherein the cells are enclosed in respective sleeves wherein the cells are further enclosed in thermoplastic spacers such that the cells are axially parallel to each other and distributed in a planar array, and wherein adjacent ones of the cells are laterally spaced apart from each other by a thermal barrier defining a pitch formed by thermoplastic spacers.

BATTERY CELL ASSEMBLY, BATTERY, AND ELECTRONIC DEVICE

Resumen de: EP4564585A1

This application provides a battery cell assembly, a battery, and an electronic device, to reduce space occupation of a tab glue in a length direction of the battery after the tab glue is bent along with a tab, avoid space waste of the tab glue in the length direction, and facilitate improvement of a battery capacity. The battery cell assembly includes a battery cell and a first tab glue. The battery cell includes a battery cell body and a tab. The tab extends relative to the battery cell body. The tab includes a fixed tab portion and a bent tab portion. The fixed tab portion is fastened to the battery cell body, and the bent tab portion is fastened to an end that is of the fixed tab portion and that is away from the battery cell body. The first tab glue is provided on an inner side surface of the fixed tab portion, and an inner side surface of the bent tab portion is exposed relative to the first tab glue.

BATTERY, BATTERY MODULE AND ELECTRIC DEVICE

Resumen de: EP4564550A1

The present application provides a battery, a battery module, and an electric device. The battery (1) includes a housing (10), a cell pack (20), and a cover plate assembly (30); the housing (10) includes a first port (11) and an accommodating cavity (12), and the cell pack (20) is disposed in the accommodating cavity (12); the cover plate assembly (30) is configured to seal the first port (11) of the housing (10) and includes a cover plate (31), and the cover plate (31) includes a positioning portion (31B) disposed at a side of the cover plate (31) close to the housing (10); and the cover plate (31) is welded to the housing (10) through the positioning portion (31B) to seal the first port (11) of the housing (10), thereby achieving full sealing of the cell pack (20).

SECONDARY BATTERY, PREPARATION METHOD THEREFOR, AND ELECTRIC DEVICE

Resumen de: EP4564456A1

A secondary battery, comprising a positive electrode plate, a negative electrode plate and a separator provided between the positive electrode plate and the negative electrode plate; wherein the negative electrode plate comprises a negative electrode current collector and a negative electrode active material layer provided on at least one surface of the negative electrode current collector, the negative electrode plate comprises one or more planar areas and one or more curved areas, the negative electrode active material layer of at least one of the planar areas comprises an active material A, and the negative electrode active material layer of at least one of the curved areas comprises an active material B, and the expansion rate of the active material B is greater than that of the active material A.

BATTERY CELL AND PREPARATION METHOD THEREFOR, SECONDARY BATTERY, AND ELECTRICAL APPARATUS

Resumen de: EP4564447A1

The present application provides a battery cell, a preparation method therefor, a secondary battery, and a power consuming device. The battery cell is formed by winding a negative electrode plate, a positive electrode plate, and a separator positioned between the negative electrode plate and the positive electrode plate, wherein the negative electrode plate has a negative electrode curved surface area, and the positive electrode plate has a positive electrode curved surface area; and at least one curved surface area group composed of the negative electrode curved surface area and the positive electrode curved surface area positioned outside and adjacent to the negative electrode curved surface area is included at a corner of the battery cell, and at least one curved surface area group in the battery cell meets the following condition: a ratio in surface capacity between the two opposite surfaces of the negative electrode curved surface area and the positive electrode curved surface area is ≥ 1.

RECHARGEABLE BATTERY PACK

Resumen de: EP4564569A1

A rechargeable battery pack includes unit batteries neighboring each other, a case including an internal space for accommodating the unit batteries, fire-extinguishing agents spaced from the unit batteries and configured to generate a solid aerosol at a predetermined or set temperature, and a medium between the fire-extinguishing agents.

RECHARGEABLE BATTERY PACK

Resumen de: EP4564568A1

A rechargeable battery pack includes a plurality of unit cells neighboring to each other, a case having an interior space accommodating the plurality of unit cells, and a fire-extinguishing agent spaced apart from the plurality of unit cells in the interior space of the case. The fire-extinguishing agent is configured to generate a solid aerosol at a reference temperature to extinguish a fire in one or more of the plurality of unit cells.

SOLID ELECTROLYTE MEMBRANE, METHOD OF MANUFACTURING THE SAME, AND ALL-SOLID-STATE SECONDARY BATTERY INCLUDING THE SAME

Resumen de: EP4564485A1

A solid electrolyte membrane includes a solid electrolyte, a high-molecular-weight polymer binder having a weight average molecular weight of about greater than 75,000 gram/mole (g/mol) but less than or equal to 1,000,000 g/mol, and a low-molecular-weight non-polar liquid rubber (non-polar elastomer), wherein the low-molecular-weight non-polar liquid rubber has a weight average molecular weight of about 2,000 g/mol to about 75,000 g/mol, and a viscosity of about 1 centipoises (cps) to about 100,000 cps. An all-solid-state secondary battery includes the solid electrolyte membrane.

APPARATUS AND METHOD FOR MANUFACTURING SECONDARY BATTERY

Resumen de: EP4564499A1

Disclosed is a secondary battery manufacturing apparatus (300) that reduces occurrence of skew failure in electrode plates. The secondary battery manufacturing apparatus (300) includes a roller (310) conveying a sheet (200), a sensor (330) measuring tension of the sheet (200) during conveyance of the sheet (200), and a driver (320) controlling operation of the roller (310) based on the measured tensions.

METHOD FOR MANUFACTURING A BIPOLAR BATTERY

Resumen de: EP4564444A1

A method for forming a bipolar battery may apply a cathode layer to a current collector, comprising: providing a cathode mixture; and feeding the cathode mixture through a plurality of cathode calendar rolls. The method may apply an anode layer to the current collector, comprising: providing an anode mixture; and feeding the anode mixture through a plurality of anode calendar rolls. The cathode mixture and the anode mixture are fed into the plurality of cathode calendar rolls and the plurality of anode calendar rolls asymmetrically.

APPARATUS AND METHOD FOR REMOVING RESIDUAL ELECTROLYTE FROM A SECONDARY BATTERY

Resumen de: EP4564498A1

An apparatus configured to remove a residual electrolyte from a beading part (113) of a case (110) of a cylindrical secondary battery (100), the case (110) being configured to prevent or reduce separation of an electrode assembly (120). The apparatus includes an electrolyte absorption member providing part (11) configured to provide an electrolyte absorption member (13) to the case (110), a case moving part (21) for coupling to the electrode assembly (120), wherein the case moving part (21) is configured to move the case (110) after the case (110) has received an injection of an electrolyte, and an electrolyte absorption member moving part (31) configured to move an area (161) of the electrolyte absorption member (13) onto the beading part (113) of the case (110) to absorb at least some of the residual electrolyte from the beading part (113).

SOAKING PARTITION, DIRECT COOLING PLATE, AND BATTERY MODULE

Resumen de: EP4564527A1

A soaking partition, a direct cooling plate, and a battery module are provided. The soaking partition includes: a housing, where at least a portion of an inner cavity of the housing is configured as a closed cavity, and a wall surrounding the closed cavity includes a first side wall and a second side wall; and a capillary element bonded to at least a portion of an inner surface of the first side wall or the second side wall, where at least a portion of the capillary element is in contact with a cooling medium in the closed cavity.

SOLID-STATE ELECTROLYTE, PREPARATION METHOD THEREFOR, SECONDARY BATTERY, BATTERY MODULE, BATTERY PACK AND ELECTRICAL APPARATUS

Resumen de: EP4564509A1

This application provides a solid electrolyte, a preparation method thereof, a secondary battery, a battery module, a battery pack, and an electric apparatus. The solid electrolyte includes a compact layer and a porous layer located on at least one side of the compact layer, where a porosity of the porous layer is greater than a porosity of the compact layer. The porous layer helps to improve the wettability of an interface between the solid electrolyte and a positive electrode plate/negative electrode plate, and also facilitates filling of positive and negative electrode active substances into pores, thereby reducing interface resistance of a battery and improving rate performance and low-temperature performance of the battery.

ZONE CONTROL VALVE AND FIRE-FIGHTING SYSTEM

Resumen de: EP4563859A1

Provided is a zone control valve and a fire-fighting system. The zone control valve comprises a valve body (100), a sealing diaphragm (200), and an electrical explosion driving device. A fluid flow path, comprising an inlet (103) and an outlet (104), is formed inside the valve body (100) , and the central axis of the inlet (103) and the central axis of the outlet (104) form an included angle; the sealing diaphragm (200) is sealedly arranged in the fluid flow path and divides the fluid flow path into a first flow channel (110) and a second flow channel (120); the electrical explosion driving device is mounted on the valve body (100), the output end of the electrical explosion driving device is in connection with a puncture part (31), and the puncture part (31) is located in the second flow channel (120) and directly faces the sealing diaphragm (200); the electrical explosion driving device can be electrically connected to an external control unit (400), and the external control unit (400) can send a starting signal, so that the electrical explosion driving device is turned on and drives the puncture part (31) to approach and pierce the sealing diaphragm (200).

HEAT INSULATING PROTECTIVE LAYER, BOX, BATTERY, AND ELECTRICAL APPARATUS

Resumen de: EP4564536A1

This application relates to the technical field of protection materials, and in particular, to a heat-insulation protection layer, a box, a battery, and an electrical device. During thermal runaway of the battery, the heat-insulation protection layer can reduce the risk of damage caused by heat to an outer envelope of a battery pack, and reduce the risk of heat leaking to the outside to generate open flames and fire. The heat-insulation protection layer includes a first surface and a second surface oriented back-to-back against each other. The first surface is configured to face a heat source. An axial heat transfer coefficient T1 of the heat-insulation protection layer is less than a transverse heat transfer coefficient T2 of the heat-insulation protection layer. Heat generated by the heat source radiates to the first surface. When a temperature of the first surface is less than or equal to 1600 °C, that is, when the heat radiates to the first surface and makes the temperature of the first surface be less than or equal to 1600 °C, a temperature of the second surface does not exceed 1200 °C. When a specified amount of heat radiates from the heat source, the heat-insulation protection layer can effectively block the heat and control the temperature to fall within a specified range, thereby reducing the risk that the high temperature damages the structure disposed at the second surface.

STAMP PUNCHING OIL APPLICATOR AND METHOD FOR MANUFACTURING ELECTRODE PLATE FOR SECONDARY BATTERY USING THE SAME

Resumen de: EP4563260A1

A method for manufacturing electrode plate for secondary battery includes feeding an electrode plate including an active material layer and an uncoated portion to a stamp block on which a pad is formed, applying a punching oil absorbed by the pad to a partial region of the uncoated portion, and notching the electrode plate along the partial region where the punching oil is applied.

LATCH OF A BATTERY COVER FOR AN ELECTRONIC DEVICE

Resumen de: EP4564791A1

There is provided a cover piece (20) for covering an opening (11) of a casing (10) by being engaged with an engaging target part (12) formed on the opening. The cover piece includes an elastic member (22). A first region (222) and a second region (221) are integrally formed with the elastic member. The first region includes an engaging part (222b) and a finger-putting part (222a). The second region is formed at a position to face the first region. The engaging part engaged with the engaging target part is disengaged from the engaging target part in response to the finger-putting part being moved in a direction of bringing the first region toward the second region. At least either an edge of a corner region(C1) of the first region facing the second region or an edge of a corner region(C2) of the second region facing the first region is removed.

BATTERY MODULE

Resumen de: EP4564537A1

A battery module including a housing, a plurality of battery cells each disposed in the housing and comprising a first surface and a second surface that intersect each other, at least one first insulating member facing the first surface of the battery cell, and at least one second insulating member extending from the at least one first insulating member and facing the second surface of the battery cell.

BATTERY MODULE

Resumen de: EP4564555A1

A battery module including battery cells arranged in a horizontal direction. Each of the battery cells includes a cell vent, a positive electrode terminal, and a negative electrode terminal. The battery module also includes a heat-resistant portion potted on the battery cells. The heat-resistant portion includes a heat-resistant vent provided in an area corresponding to the cell vent and a heat-resistant support portion provided outside the heat-resistant vent. The battery module also includes a bus bar holder on the heat-resistant portion. The bus bar holder includes a holder vent hole in an area corresponding to the heat-resistant vent and a bus bar hole in an area corresponding to the positive electrode terminal and the negative electrode terminal. The battery module further includes bus bars on the heat-resistant portion and connected to the positive and negative electrode terminals of the battery cells.

NEGATIVE ELECTRODE SHEET AND LITHIUM-ION BATTERY

Resumen de: EP4564484A1

This application discloses a negative electrode sheet and a lithium ion battery. In the negative electrode sheet, an active material layer is attached to an inner surface of a negative electrode current collection layer, and a heat transport structure extending from the surface to the interior is configured in the active material layer. The heat transport structure includes a heat transport layer and a heat transport column. The heat transport layer is attached between the active material layer and the lithium replenishment layer. Heat transport holes are opened in the active material layer by laser. Multiple heat transport columns attached to an inner surface of the heat transport layer are inserted into corresponding heat transport holes. When a lithium replenishment procedure is performed through the lithium replenishment layer, the heat generated is absorbed by the heat transport layer, and transported by the heat transport column to the negative electrode current collection layer. By means of this, a heat dissipation path extending from the surface to the interior of the electrode sheet is attained, to solve the problems of increased by-products on the surface of the active material layer and film falling and shedding of the electrode sheet caused by heat generation in the lithium replenishment process of the negative electrode sheet, and avoid the influence on the performance of lithium ion batteries.

NEGATIVE ELECTRODE SHEET, PREPARATION METHOD THEREFOR, BATTERY AND ELECTRICAL DEVICE

Resumen de: EP4564468A1

This application discloses a negative electrode plate and a preparation method thereof, a battery, and an electric device. The negative electrode plate includes a current collector, a lithiophilic plating layer, and a negative electrode active material layer, where the lithiophilic plating layer is formed on a surface on at least one side of the current collector, the negative electrode active material layer is formed on at least partial surface on a side, farther away from the current collector, of the lithiophilic plating layer, and a through hole extending along a thickness direction of the negative electrode active material layer is arranged on the negative electrode active material layer.

METHOD OF PREPARING PRUSSIAN BLUE POSITIVE ELECTRODE MATERIAL FOR SODIUM BATTERY USING TAYLOR REACTOR

Resumen de: EP4563529A1

The present invention relates to a method of preparing a Prussian blue positive electrode material for a sodium battery using a Taylor reactor, and more specifically, the method includes a first mixture preparation step for preparing a first mixture in which an aqueous solution of iron chloride is mixed, a second mixture preparation step for preparing a second mixture in which an aqueous solution of sodium ferrocyanide is mixed, a synthesis step for synthesizing a Prussian blue analog by reacting the mixture prepared in the second mixture preparation step with the mixture prepared in the first mixture preparation step in a Taylor reactor under a nitrogen injection condition, a maturation step for maturing the Prussian blue analog synthesized in the synthesis step, a washing and filtering step for washing and filtering the Prussian blue analog matured through the maturation step using a washing agent, and a drying step for drying the Prussian blue analog washed and filtered through the washing and filtering step.The method of preparing a Prussian blue positive electrode material for a sodium battery including the above-described steps exhibits excellent Prussian blue positive electrode material production efficiency and provides a Prussian blue positive electrode material which provides a sodium battery with improved charge/discharge efficiency and an improved capacity retention rate.

THERMAL MANAGEMENT SYSTEM, ENERGY STORAGE DEVICE, AND PHOTOVOLTAIC ENERGY STORAGE SYSTEM

Resumen de: EP4564535A1

This application relates to the field of energy technologies, and discloses a thermal management system, an energy storage device, and a photovoltaic energy storage system, to improve integration of the thermal management system. The thermal management system includes a first path, a second path, a third path, a fourth path, and a multi-way valve. A first port and a second port of the multi-way valve are respectively communicated with an inlet and an outlet of the first path, and the first path includes a coolant flow channel of an evaporator. A third port and a fourth port are respectively communicated with an inlet and an outlet of the second path, the second path includes a coolant flow channel of a condenser, a first liquid outlet, and a first liquid inlet, and the first liquid outlet and the first liquid inlet are separately configured to connect to a first cold plate. A fifth port and a sixth port are respectively communicated with an inlet and an outlet of the third path, the third path includes a second liquid outlet and a second liquid inlet, and the second liquid outlet and the second liquid inlet are separately configured to connect to a second cold plate. A seventh port and an eighth port are respectively communicated with an inlet and an outlet of the fourth path, and the fourth path includes a heat exchanger.

ELECTRODE ASSEMBLY, BATTERY AND ELECTRICAL APPARATUS

Resumen de: EP4564449A1

An electrode assembly, a battery and an electrical apparatus. The electrode assembly comprises a positive electrode sheet, an isolation member and a negative electrode sheet, the isolation member being arranged between the positive electrode sheet and the negative electrode sheet, and a groove being formed in the surface of at least one of the positive electrode sheet, the negative electrode sheet and the isolation member.

ELECTRODE ASSEMBLY, BATTERY CELL, BATTERY AND ELECTRIC DEVICE

Nº publicación: EP4564514A1 04/06/2025

Solicitante:

CONTEMPORARY AMPEREX TECHNOLOGY HONG KONG LTD [HK]
CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED

Resumen de: EP4564514A1

The present disclosure discloses an electrode assembly, a cell, a battery, and an electrical device, which belongs to the field of batteries technologies. The electrode assembly (30) includes a positive electrode plate (31), a negative current collector (32), and a support layer (33). The positive electrode plate (31) and the negative current collector (32) are arranged in a first direction. The negative current collector (32) has a first side surface and a second side surface opposite to the first side surface in the first direction. The support layer (33) is disposed on at least part of the first side surface and/or at least part of the second side surface of the negative current collector (32).