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METHOD FOR MANUFACTURING SEPARATOR EQUIPPED WITH POLYMER ADHESIVE LAYER, POLYMER ADHESIVE LAYER-EQUIPPED SEPARATOR FORMED THEREBY, AND ELECTROCHEMICAL DEVICE INCLUDING SAME

Resumen de: EP4597727A1

Provided is a method for manufacturing a separator having a polymer adhesive layer, comprising (S1) preparing an aqueous polymer slurry comprising a particulate binder polymer having a glass transition temperature (Tg) of 20°C or more and a particle size D50 of 300 to 800 nm, a wetting agent and a particulate acrylic binder polymer having a Tg of - 10°C or less and a particle size D50 of 100 to 200 nm; and (S2) coating the aqueous polymer slurry on at least one surface of a polyolefin-containing porous membrane having pores and drying the aqueous polymer slurry.

CASE ASSEMBLY, BATTERY CELL, BATTERY AND ELECTRIC DEVICE

Resumen de: EP4597714A1

A housing assembly (400), a battery cell (10), a battery (100), and an electric device (1000) are provided. The housing assembly (100) is used for the battery cell (10) and includes a housing (1) and a separator (420). A pressure relief portion (430) is formed on an outer surface of the housing (1); the separator (420) includes a fitting surface (421), a groove (422) is formed on the fitting surface (421), the fitting surface (421) is fitted to the outer surface of the housing (1), and at least part of the pressure relief portion (430) is accommodated in the groove (422).

MOLDING DEVICE AND MOLDING METHOD, AND POUCH-TYPE BATTERY CASE FORMED THEREBY

Resumen de: EP4596204A1

A molding apparatus according to an embodiment of the present invention may mold a pouch film. The molding apparatus may include: a die in which a first opening is defined; a stripper disposed above the die to fix the pouch film and having a second opening; a sub die having a height that is variable with respect to the die inside the first opening; a punch configured to press the pouch film through the second opening and disposed to face the sub die; and a sub punch configured to press the pouch film between an inner circumference of the first opening and an outer circumference of the sub die through a space between an inner circumference of the second opening and an outer circumference of the punch.

THERMAL MANAGEMENT SYSTEM AND VEHICLE HAVING SAME

Resumen de: EP4596276A1

A thermal management system and a vehicle having same. The thermal management system comprises a battery heat exchange module and a controller. The battery heat exchange module comprises a first trunk line and a second trunk line, wherein a first heat exchange assembly is arranged in the first trunk line, a second heat exchange assembly is arranged in the second trunk line, and the first heat exchange assembly and the second heat exchange assembly are used for exchanging heat with a battery. The controller is configured to control at least one of the first trunk line and the second trunk line to exchange heat with the battery according to the temperature of the battery.

THERMAL MANAGEMENT SYSTEM AND VEHICLE HAVING SAME

Resumen de: EP4596275A1

A thermal management system, comprising: a battery thermal management subsystem which comprises a first trunk line and a second trunk line, the first trunk line being used for exchanging heat with a first area of a battery, the second trunk line is used for exchanging heat with a second area of the battery, the first area and the second area being different, and at least one of the first trunk line and the second trunk line exchanging heat with the battery; and a heat exchange unit which is arranged on the battery thermal management subsystem and a power thermal management subsystem, wherein the battery thermal management subsystem and the power thermal management subsystem exchange heat by means of the heat exchange unit, and the power thermal management subsystem is used for heat dissipation of electronic modules.

CONTROL METHOD AND VEHICLE

Resumen de: EP4596307A1

A control method and a vehicle. The control method comprises: acquiring a heat exchange signal; and controlling at least one of a first trunk line in a thermal management system and a second trunk line in the thermal management system to exchange heat with a battery, the first trunk line being used for exchanging heat with a first area of the battery, the second trunk line being used for exchanging heat with a second area of the battery, and the first area being different from the second area.

THERMAL MANAGEMENT SYSTEM AND VEHICLE HAVING SAME

Resumen de: EP4596309A1

A thermal management system and a vehicle having same. The thermal management system comprises: a battery heat exchange module. The battery heat exchange module comprises: a first trunk line and a second trunk line, wherein the first trunk line is configured to exchange heat with a first region of a battery, the second trunk line is configured to exchange heat with a second region of the battery, the first region is different from the second region, and at least one of the first trunk line and the second trunk line exchanges heat with the battery.

THERMAL MANAGEMENT SYSTEM AND VEHICLE HAVING SAME

Resumen de: EP4596274A1

A thermal management system and a vehicle having same. The thermal management system comprises: a battery thermal management subsystem, the battery thermal management subsystem comprising a first trunk line (10a) and a second trunk line (10b), the first trunk line (10a) being used for exchanging heat with a first region of a battery, the second trunk line (10b) being used for exchanging heat with a second region of the battery, the first region being different from the second region, and at least one of the first trunk line (10a) and the second trunk line (10b) exchanging heat with the battery; and at least one first heat exchanger (791), the first heat exchanger (791) being arranged on the battery thermal management subsystem and an air conditioning subsystem, and the battery thermal management subsystem and the air conditioning subsystem exchanging heat by means of the first heat exchanger.

BATTERY HEAT EXCHANGE MODULE, THERMAL MANAGEMENT SYSTEM, AND VEHICLE

Resumen de: EP4597691A1

A battery heat exchange module (20), comprising: a first interface (23), a second interface (24), a first heat exchange assembly (21), and a second heat exchange assembly (22). The first heat exchange assembly (21) and the second heat exchange assembly (22) are used for exchanging heat with a battery (300). The first heat exchange assembly (21) is arranged corresponding to a first area of the battery (300), the second heat exchange assembly (22) is arranged corresponding to a second area of the battery (300), and the first area is different from the second area.

BATTERY CELL, BATTERY, AND ELECTRIC APPARATUS

Resumen de: EP4597678A1

Disclosed in the present application are a battery cell, a battery, and an electric apparatus. The battery cell comprises: a housing, comprising a housing cover and a housing body; a battery cell assembly, comprising an active substance-coated part; and a support arranged at the end of the active substance-coated part distal to the opening of the housing body and fitting the battery cell assembly. The support is provided with a body part and an extension part arranged circumferentially on the body part. The projection of the body part on the plane of the housing cover is within the projection of the active substance-coated part on the plane of the housing cover, and the projection of the extension part on the plane of the housing cover is located outside the projection of the active substance-coated part on the plane of the housing cover. The embodiments of the present application can reduce the probability that the active substance-coated part touches the housing and that the housing scratches the active substance-coated part.

BATTERY CELL, BATTERY, AND ELECTRICAL DEVICE

Resumen de: EP4597677A1

The present application discloses a battery cell, a battery, and an electrical device. The battery cell comprises a housing assembly and a core assembly; the housing assembly comprises a housing and a first pole, the housing has a first wall provided with a mounting hole, the first pole is provided in the mounting hole, and the first pole comprises a first soldering surface; the core assembly comprises an active material coating portion and a conductive portion electrically connected to the active material coating portion, the active material coating portion is accommodated in the housing, the conductive portion comprises a second soldering surface in contact with the first soldering surface, and a portion of the second soldering surface is soldered to a portion of the first soldering surface by means of a soldering portion; a plane where the cross section of the mounting hole is located is taken as a projection plane, and in a direction perpendicular to the projection plane, the outer contour of the projection of the second soldering surface on the projection plane is located within a range of the outer contour of the projection of the first soldering surface on the projection plane. According to the battery cell of the present application, the fast charging performance, reliability and stability of the battery cell are improved.

BATTERY CELL, BATTERY, AND ELECTRICAL DEVICE

Resumen de: EP4597729A1

The present application discloses a battery cell, a battery, and an electrical device. The battery cell comprises: a housing, a core assembly; a support, provided at one end of the core assembly; and an insulating member, matching the support and wrapping the core assembly. The core assembly, the support, and the insulating member are all provided in the housing, and at least a portion of the insulating member is connected to the wall surface of the support distant from the core assembly. In the technical solution of the embodiments of the present application, the reliability of connection between the insulating member and the support can be improved, the risk of falling of the insulating member can be reduced, the risk of corrosion of the housing caused by exposure of the core assembly can be reduced, the risk of failure of the core assembly can be reduced, the risk of electrolyte leakage can be reduced, and then the reliability and stability of the battery cell can be improved.

SILICON COMPOSITE ANODE MATERIALS FOR ENERGY STORAGE DEVICES, AND METHODS THEREOF

Resumen de: MX2025003012A

Methods for forming dry composite material for an energy storage device electrode are provided. The method may comprise forming a slurry by mixing a solvent, a silicon active material, a carbon active material, and a carbon additive; and forming the dry composite material comprising the silicon active material, the carbon active material, and the carbon additive by removing the solvent. The carbon additive, silicon active material and carbon active material are substantially homogeneously dispersed in the dry composite material. The dry composite material may be used to form a dry electrode film in dry fabrication processes.

NEGATIVE ELECTRODE FOR ALKALINE SECONDARY BATTERIES, ALKALINE SECONDARY BATTERY, AND METHOD FOR PRODUCING NEGATIVE ELECTRODE FOR ALKALINE SECONDARY BATTERIES

Resumen de: EP4597618A1

This negative electrode for alkaline secondary batteries comprises a negative electrode current collector and a negative electrode mixture that is supported by the negative electrode current collector. The negative electrode mixture contains a hydrogen storage alloy that has an Fe content of 200 to 900 ppm by mass, and a carbon black that has an Fe content of 1,000 to 2,800 ppm by mass.

CONNECTOR WATERPROOF STRUCTURE AND BATTERY PACK EQUIPPED WITH CONNECTOR

Resumen de: EP4597701A1

A connector is fixed to a fixed member with waterproof structure while manufacturing cost is reduced. The waterproof structure of a connector includes fixed member 2 provided with connector insertion port 2A and a plurality of screw insertion ports 2B, connector 3 including a connector body 31 and flange part 32, screw receiving member 4 disposed facing a second surface of fixed member 2 and into which fixing screw 7 having passed through flange part 32 and fixed member 2 is screwed, packing member 5, and O-ring 6. Screw receiving member 4 includes a plurality of screw fixing parts 41 into which fixing screws 7 are screwed without passing through corresponding screw fixing parts 41, and coupler 42 that couples the plurality of screw fixing parts 41. The waterproof structure is formed in which O-ring 6 seals an opening of each of screw insertion ports 2B while fixing screw 7 having inserted through screw insertion hole 33 of flange part 32 and the corresponding one of the screw insertion ports 2B is screwed into corresponding one of screw fixing parts 41 with O-ring 6 interposed therebetween, and packing member 5 is sandwiched between flange part 32 and fixed member 2 to seal an opening of connector insertion port 2A with packing member 5.

NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY

Resumen de: EP4597668A1

In a non-aqueous electrolyte secondary battery according to the present disclosure, a positive electrode comprises a lithium-containing composite oxide, and a sulfonic acid compound which is represented by formula (I) and is present on a particle surface of the lithium-containing composite oxide, and a negative electrode mixture layer of a negative electrode includes first graphite particles having an internal porosity of at most 5% and second graphite particles having an internal porosity of 8% to 20%. A thickness T1 of a first negative electrode mixture layer facing a negative electrode core and a thickness T2 of a second negative electrode mixture layer facing the positive electrode satisfy 0.1≤T1/(T1+T2)≤0.9, and a ratio C1 of the first graphite particles to the total mass of the first and second graphite particles in the first negative electrode mixture layer, and a ratio C2 of the first graphite particles to the total mass of the first and second graphite particles in the second negative electrode mixture layer satisfy C1

ELECTRIC DEVICE AND METHOD OF MANUFACTURING SAME

Resumen de: EP4597731A1

Spring back is suppressed with a simple configuration. An electric device includes lead plate 30 including bent segment 32 bent along bend line 31, circuit board 3 electrically connected to bent segment 32 of lead plate 30, and holder 20 that holds lead plate 30. Holder 20 includes holder portions 26 that lock part of upper surfaces of bent segments 32. Holder portion 26 is configured to abut on and hold the part of the upper surface of bent segment 32 while the holder portion opposes a direction of spring back caused by bent segment 32 of lead plate 30 being bent along bend line 31. Circuit board 3 includes connection region 4 electrically connected to lead plate 30. Bent segment 32 is electrically connected to connection region 4.

SILICON-BASED NEGATIVE ELECTRODE ACTIVE MATERIAL AND PREPARATION METHOD THEREFOR, SECONDARY BATTERY, AND ELECTRIC DEVICE

Resumen de: EP4597628A1

A silicon-based negative electrode active material, comprising M2Si2O5 and M2SiO3, wherein M comprises one or more alkali metal elements; in an XRD pattern of the silicon-based negative electrode active material, a diffraction angle 2θ has a first diffraction peak in the range of 24°-25°, and the half-peak width of the first diffraction peak is βA; the diffraction angle 2θ has a second diffraction peak in the range of 26°-27°, and the half-peak width of the second diffraction peak is βB; and the silicon-based negative electrode active material meets the equation: 1.0 ≤ β A/ β B ≤ 2.5.

AUTOMATIC ELECTRODE PLATE READING APPARATUS FOR SECONDARY BATTERIES

Resumen de: EP4597617A1

Disclosed is an automatic electrode plate reading apparatus for secondary batteries which, when an arm descends, vacuum-adsorbs and grips a barcode part of a standby electrode plate, and then rises in the state in which an EPC sensor and a replacement preparation core move backwards, a first roller moves to the right, a third roller descends and second rollers rise, automatically connects the electrode plate vacuum-adsorbed and gripped by the arm to the replacement preparation core so as to be kept taut in the state in which the first roller moves to the left, the second rollers descend, the third roller rises and the EPC sensor and the replacement preparation core move forwards. The automatic electrode plate reading apparatus includes for secondary batteries includes a standby electrode plate (1) prepared in a roll form to replace an electrode plate around a core and rotatably installed, an EPC sensor (2), a first roller (3) configured to move left when an arm (8) descends, and to move right to push the standby electrode plate (1) when the arm (8) rises, second rollers (4) rotatably installed to place the standby electrode plate (1) at a regular position, and a third roller (6) installed below the second rollers (4) and configured to descend before the arm (8) descends and to rise so as to keep the standby electrode plate (1) taut after the arm (8) rises, and, in the state in which the arm (8) descends by an arm drive motor (11), detects a barcode on the standby electrode pl

ADHESIVE TAPE ATTACHING MECHANISM, ADHESIVE TAPE ATTACHING DEVICE, AND BATTERY PRODUCTION LINE

Resumen de: EP4596477A1

This application relates to an adhesive tape application mechanism (100), an adhesive tape application apparatus (1000), and a battery production line. The adhesive tape application mechanism (100) includes: an assembly base (10); a central adhesive tape suction assembly (20) capable of adsorbing and applying an adhesive tape (3000) to a first surface (2100) of a workpiece to be adhered; end adhesive tape suction assemblies (30) arranged on two opposite sides of the central adhesive tape suction assembly (20), where each of the end adhesive tape suction assemblies (30) includes an end driving member (31) and an end adhesive tape suction member (32) in transmission connection with the end driving member (31); and an end sliding assembly (40), disposed on the assembly base (10), where each of the end adhesive tape suction members (32) is configured to be driven by the end driving member (31) connected thereto, guided by the end sliding assembly (40) to slide toward the central adhesive tape suction assembly (20) for closing, and is capable of adsorbing, bending, and applying the adhesive tape (3000) to a second surface (2200) and a third surface (2300) of the workpiece to be adhered, respectively. The adhesive tape application mechanism (100), the adhesive tape application apparatus (1000), and the battery production line provided by this application can alleviate the problem caused by unstable pressing force resulting from elastic deformation, thereby enhancing the reliability

BATTERY AND ELECTRICAL APPARATUS

Resumen de: EP4597715A1

This application relates to a battery (100) and an electrical device. The battery (100) includes: a shell structure (10); and a battery cell (20), including a pressure relief structure (24). The shell structure (10) includes a first sidewall (14) oriented toward the pressure relief structure (24). A part of the first sidewall (14) is recessed toward outside of the shell structure (10) to form a recessed structure (141). An orthographic projection of the pressure relief structure (24) toward the first sidewall (14) at least partially falls within the recessed structure (141). A part of the first sidewall (14) is recessed outward to form the recessed structure (141), and the orthographic projection of the pressure relief structure (24) toward the first sidewall (14) at least partially falls within the recessed structure (141), and therefore, a distance between the pressure relief structure (24) and the first sidewall (14) can be increased, and a cushion space (1411) between the pressure relief structure and the first sidewall (14) can be enlarged. In this way, when the pressure relief structure (24) relieves pressure, an instantaneous heat flow impact force can be cushioned in the cushion space (1411), thereby reducing a force exerted on the fireproof structure (40) and the shell structure (10), avoiding damage to the fireproof structure (40) and the shell structure (10), and eliminating a threat to the external environment.

POSITIVE ELECTRODE FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY

Resumen de: EP4597606A1

A positive electrode (11) in a non-aqueous electrolyte secondary battery (10) according to an embodiment of the present invention contains, as a positive-electrode active material, a lithium transition metal composite oxide that has a layered structure and contains at least 75 mol% of Ni with respect to the total molar quantity of metal elements excluding Li. The lithium transition metal composite oxide is made of secondary particles formed by aggregation of primary particles. At least one selected from the group consisting of Ca and Sr, and at least one selected from the group consisting of W, Mo, Ti, Si, Nb, and Zr, are present at the interface between primary particles inside the secondary particles. An electroconductive auxiliary agent within a positive-electrode compound layer (31) includes at least one selected from the group consisting of particulate carbon materials having an average grain diameter of 20 nm or less and fibrous carbon materials having an average fiber diameter of 20 nm or less, the carbon materials containing carbon.

MANUFACTURING DEVICE FOR MIXTURE SHEET

Resumen de: EP4597593A1

This manufacturing device 1 for a mixture sheet S comprises: a first forming roller 4 and a second forming roller 6 that press a particulate dry-type electrode mixture P into a sheet form, thereby forming the mixture sheet S, the second roller 6 supporting and conveying the mixture sheet S on a circumferential surface 6b; and a first stretching roller 8 that stretches the mixture sheet S, the first stretching roller 8 being disposed so that a gap G1 between the first stretching roller 8 and the second forming roller 6 becomes smaller than the thickness T1 of the mixture sheet S that is supported by the second forming roller 6. The positional relationship between the first forming roller 4, the second forming roller 6, and the first stretching roller 8 is determined so that the rollers extend in a direction in which a first virtual line L1 and a second virtual line L2 intersect, the first virtual line L1 passing through a rotational axis 4a of the first forming roller 4 and a rotational axis 6a of the second forming roller 6, and the second virtual line L2 passing through the rotational axis 6a of the second forming roller 6 and a rotational axis 8a of the first stretching roller 8.

POWER STORAGE DEVICE

Resumen de: EP4597740A1

A power storage device (10) comprises: an electrode body (14) in which a positive electrode (11) and a negative electrode (12) are wound with a separator (13) therebetween; an exterior body (15) that serves to accommodate the electrode body (14) and has a bottomed cylinder shape with an opening therein; a sealing body (16) for closing the opening; a first insulating member (17); and a second insulating member (18). A safety valve for releasing the internal pressure in the exterior body (15) when said internal pressure rises to a level equal to or greater than a predetermined level is provided to one of the bottom section of the exterior body (15) and the sealing body (16). The first insulating member (17) is arranged between the electrode body (14) and the safety valve, the second insulating member (18) is arranged in a position facing the first insulating member (17) with the electrode body (14) therebetween, and while at a predetermined temperature, the amount of gas generated from the second insulating member (18) is greater than the amount of gas generated from the first insulating member (17).

POSITIVE ELECTRODE FOR LITHIUM BATTERY AND LITHIUM BATTERY

Nº publicación: EP4597599A1 06/08/2025

Solicitante:

FDK CORP [JP]
FDK Corporation

Resumen de: EP4597599A1

This positive electrode for a lithium battery includes a positive electrode active material containing manganese dioxide and a conductive auxiliary agent. The conductive auxiliary agent includes carbon black. The carbon black has an average primary particle size of 30 nm or more and a specific surface area of 1000 m²/g or more, and contains Al.