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1719
resultados
Última actualización
07/06/2025 [07:24:00]
Resultados 675 a 700 de 1719
Resumen de: EP4564538A1
Module de batterie à au moins un accumulateur comprenant une poudre métallique à changement de phase pour limiter la propagation d'emballement thermique et de l'augmentation de pression afférente.L'invention concerne un module (M) de batterie comprenant au moins une poudre métallique (10) à changement de phase, mise dans au moins une zone destinée au passage des gaz chauds libérés par un des accumulateurs lors d'un emballement thermique, la poudre étant adaptée pour changer de phase dans la zone et ainsi limiter la convection thermique des gaz chauds libérés.
Resumen de: EP4564445A1
L'invention a trait à un procédé de fabrication d'un ensemble comprenant une première électrode plane comprenant une matrice polymérique piégeant un électrolyte et un collecteur de courant, ladite première électrode étant déposée sur une face dudit collecteur de courant, ledit procédé comprenant :a) une étape de préparation d'une composition comprenant les ingrédients destinés à entrer dans la constitution de la première électrode ;b) une étape de formation d'une bande par passage de ladite composition à travers une filière ;c) une étape de laminage de la bande obtenue en b),d) une étape de colaminage de la bande laminée obtenue en c) avec un collecteur de courant, moyennant quoi il résulte l'ensemble comprenant la première électrode plane et le collecteur de courant.
Resumen de: EP4564500A1
The present invention relates to a current collecting plate for a positive electrode of a battery unit, the current collecting plate comprising: a first connecting portion, the first connecting portion being formed as a main body portion of the current collecting plate, and the first connecting portion being used for being welded to a positive electrode of a battery unit; a second connecting portion that is arranged in the middle of the main body portion; and a narrow portion that connects the first connecting portion and the second connecting portion, the narrow portion extending through a virtual center of the main body portion. During the manufacture of the battery unit, the current collecting plate is folded at the narrow portion, wherein the first connecting portion and the second connecting portion respectively have a first dimension that defines a first rated current, and the narrow portion has a second dimension that defines a second rated current which is smaller than the first rated current, and the second dimension is smaller than the first dimension.
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.
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.
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.
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.
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.
Resumen de: EP4564501A2
Disclosed is a cylindrical lithium-ion battery, comprising a battery cell, a protection board, a first elastic conductive member, a second elastic conductive member and a fixing cap. The protection board is installed above the battery cell at intervals, a top surface of the protection board is provided with a metal contact. An upper end of the first elastic conductive member abuts against a bottom surface of the protection board and is electrically connected to a positive electrode of the protection board, and a lower end of the first elastic conductive member abuts against a top end of the battery cell and is electrically connected to a positive electrode of the battery cell. An upper end of the second elastic conductive member abuts against the bottom surface of the protection board and is electrically connected to a negative electrode of the protection board.
Resumen de: EP4564647A1
A battery pack configured to supply power to a common load includes at least one battery having a high side battery interface and a low side battery interface. The high side and low side battery interfaces are electrically coupled to the common load. The battery pack further includes a voltage detection circuit assembly configured to perform a plurality of operations, including but not limited to determining whether to implement a hardware trigger on only the high side battery interface by referencing ground of the low side battery interface, detecting a load type of the common load based on whether the high side battery interface is triggered, sending a notification to the high side battery interface and the low side battery interface as to whether the high side battery interface is triggered, and in response to sending the notification, determining whether to allow firmware to operate the common load.
Resumen de: EP4564461A2
An anode active material for a lithium secondary battery includes a composite particle. The composite particle includes a carbon-based particle including pores, and a silicon-containing coating formed on a surface of the carbon-based particle. A crystallite size of silicon included in the silicon-containing coating after a heat treatment of the composite particle at a temperature of 900 °C to 1200 °C for 6 hours to 9 hours measured by an X-ray diffraction (XRD) analysis is 10 nm or less.
Resumen de: EP4564454A2
An anode active material for a lithium secondary battery includes a composite particle. The composite particle includes a carbon-based particle including pores, and a siliconcontaining coating formed on a surface of the carbon-based particle. A particle peak distance of the composite particle measured by a pair distribution function (PDF) analysis is 0.6 Å or less.
Resumen de: EP4564453A2
An anode for a lithium secondary battery includes an anode current collector, and an anode active material layer disposed on at least one surface of the anode current collector. The anode active material layer includes an anode active material and a conductive material. An electrode peak intensity ratio obtained by a pair distribution function (PDF) analysis of the anode active material layer is in a range from 1.1 to 2.7.
Resumen de: EP4564459A2
An anode for a lithium secondary battery includes an anode current collector, a first anode active material layer disposed on at least one surface of the anode current collector and including a first anode active material, and a second anode active material layer disposed on the first anode active material layer and including a second anode active material. The first anode active material includes a graphite-based active material, and the second anode active material includes a composite particle including silicon. A diffusivity of the first anode active material layer obtained by an X-ray microscope (XRM) analysis is 3.87 or less.
Resumen de: EP4564455A2
An anode for a lithium secondary battery includes an anode current collector, a first anode active material layer disposed on at least one surface of the anode current collector and including a first anode active material, and a second anode active material layer disposed on the first anode active material layer and including a second anode active material. The first anode active material includes a graphite-based active material, and the second anode active material includes a composite particle including silicon. A tortuosity of the second anode active material layer obtained by an X-ray microscope (XRM) analysis is 2.32 or less.
Resumen de: EP4564542A1
A sealing block configured to seal a lead film covering a lead metal and a pouch covering the lead film. The sealing block includes a first sealing surface extending in a length direction and is configured to apply pressure in a height direction perpendicular to the length direction. The first sealing surface includes a center sealing surface extending in the length direction; and a side sealing surface located at each end of the center sealing surface in the length direction. The side sealing surface is stepped in the height direction with respect to the center sealing surface, and the side sealing surface has a sealing protrusion that protrudes in the height direction to a predetermined distance from the side sealing surface.
Resumen de: GB2635992A
A cabinet assembly of an energy storage apparatus, and an energy storage apparatus having same. The cabinet assembly (1) comprises a body (40), a first wiring assembly (10), a second wiring assembly (20), and a third wiring space. A first chamber and a second chamber are provided in the body (40); the first wiring assembly (10) is fixed to an inner wall of the body (40), a first wiring space is provided in the first wiring assembly (10), the first wiring space is provided with a first wiring hole (15) located in the first chamber, and a fire-fighting cable is adapted to be electrically connected to a fire-fighting device through the first wiring hole (15); the second wiring assembly (20) is fixed to the inner wall of the body (40), and the second wiring assembly (20) is internally provided with a second wiring space for guiding wiring of a communication cable which is electrically connected to a battery; and the third wiring space is located in the second chamber, each of the first wiring space and the second wiring space is in communication with the third wiring space, and each of the fire-fighting cable and the communication cable is electrically connected to an electrical element. The cabinet body assembly can achieve threading hiding of an exposed wire, such that the overall wire arrangement is simpler, and the risk caused by faults of the exposed wire is avoided.
Resumen de: GB2636003A
A battery characteristic acquisition system (10) comprises: a charging control unit (21), a measuring unit (22), a storage unit (33), and a characteristic curve creation unit (321). The charging control unit (21) charges a battery (90). The measuring unit (22) measures the OCV of the battery (90) before the start of charging and the charge capacity value charged from the start of charging to the completion of charging by full charging, and calculates the SOC at the start of charging by subtracting the measured charge capacity value from the full charge capacity of the secondary battery. The storage unit (33) stores the OCV and the SOC for a plurality of times. The characteristic curve creation unit (321) creates an SOC-OCV curve of the battery (90) by using the OCV and remaining capacity for a plurality of times.
Resumen de: EP4563720A2
The present disclosure relates to an electrolytic copper foil having double-sided loose structure, preparation method and application thereof, which belongs to the technical field of electrolytic copper foil, and is to solve the problem that an electrolytic copper foil which can be applied in both anode of a lithium-ion battery and a printed circuit board is lacking in the prior art. The electrolytic copper foil comprises the following structures: a dense copper layer; a loose structure copper layer, grown on bi-directional surfaces of the dense copper layer; and a barrier layer, coated on the loose copper layer. The preparation method is divided into: preparation of dense copper layer by electrolyzing raw foil; preparation of loose structure copper layer; curing treatment; and optionally, silicone-containing organic layer treatment. It can be used in the field of lithium-ion battery and the field of printed circuit board. The present disclosure abandons the method of preparing copper foil having double-sided loose structure by etching, but uses electroplating process. Such a preparation process has batch and continuous production capacity, which can fundamentally solve the problem that the tensile strength of copper foil having double-sided loose structure is affected by the etching. And copper foil for printed circuit boards can be prepared by adding only one additional step.
Resumen de: EP4564518A1
This disclosure discloses a battery pack, including: a battery management system; battery modules, each battery module including battery cells sequentially arranged along a length direction of the battery module; circuit boards, one circuit board being arranged at the top of each battery module, the circuit board connecting each battery cell to collect operating data from each battery cell; connector assemblies, each connector assembly including a first interface and a first plug connected to each other, one of two adjacent circuit boards being connected to the first interface, and the other one being connected to the first plug; the two adjacent circuit boards being connected to each other through the connector assembly so that the circuit boards are connected in series to form a circuit board string; the circuit board string being connected to the battery management system to transmit the operating data to the battery management system.
Resumen de: EP4564580A1
A cell bracket (1) and a battery module are provided, and relate to the field of battery technology. The cell bracket (1) is provided with a first direction and a second direction, and the cell bracket (1) includes: a bracket body (11), a plurality of first busbar installing slots (111) and a plurality of second busbar installing slots (112) are disposed on the bracket body (11). Each first busbar installing slot (111) and each second busbar installing slot (112) are arranged in sequence along the first direction respectively. The first busbar installing slots (111) and the second busbar installing slots (112) are spaced apart along the second direction. Each of the first busbar installing slots (111) includes a first installing sub-slot (1111) and a second installing sub-slot (1112), and the first installing sub-slot (1111) and the second installing sub-slot (1112) at least partially overlap along the second direction.
Resumen de: EP4564451A2
A positive electrode material for lithium secondary batteries and a lithium secondary battery including the same are disclosed. The positive electrode material includes: i) a first secondary particle having a size in a range of 13 µm to 20 µm and containing an agglomerate of primary particles having a size in a range of 1 µm or less; ii) a second secondary particle having a size in a range of 7 µm to 13 µm and containing an agglomerate of primary particles having a size in a range of 1 µm or less; and iii) a one-body particle having a size in a range of 1 µm to 7 µm and containing primary particles, wherein a nickel content of each of the particles satisfies Relation 1: nickel content of the one-body particle > nickel content of the first secondary particle > nickel content of the second secondary particle.
Resumen de: EP4564504A1
Examples of the present disclosure relate to a separator for a rechargeable lithium battery, and a rechargeable lithium battery including the separator. The separator includes a separator for a rechargeable lithium battery including a porous base and a coating layer located on at least one surface of the porous base. The coating layer includes a cross-linked product of a composition containing a binder and a cross-linking agent and a filler, the binder includes a (meth)acryl-based binder containing a first structural unit derived from (meth)acrylamide and a second structural unit containing a heterocyclic ketone group. The cross-linking agent includes an aziridine-based cross-linking agent, and the filler has a particle diameter D100 of 1.0 µm or less.
Resumen de: EP4563957A1
The present disclosure relates to a thermal management film (200) for detecting and/or for regulating a temperature of an electrical device comprising at least one surface. Thermal management film (200) is arranged to be abutted against the surface of the electrical device. The thermal management film (200) comprises:- a substrate (201),- a temperature sensing arrangement (210) arranged on the substrate (201) and configured to detect a temperature associated parameter at one or more areas on the film (200), and- a temperature regulating arrangement (220) arranged on the substrate (201) and configured to regulate the temperature distribution across the film (200) by selectively generating heat at one or more areas of said film (200) and/or by selectively generating (a) cooling flux(es) at one or more areas of said film (200).
Nº publicación: EP4564576A2 04/06/2025
Solicitante:
BYD CO LTD [CN]
BYD Company Limited
Resumen de: EP4564576A2
The present disclosure provides a separator. The separator comprises a first separator layer and a second separator layer in a stack. Solid electrolyte particles are dispersed in the first separator layer. lithium material-rich particles are dispersed in the second separator layer. The present disclosure further provides a battery including the separator described above and an electric device. The separator provided in the present disclosure not only improves high-temperature stability of the separator, but also improves low-temperature performance and an initial Coulombic efficiency of the battery.
BOPI
Sede Electrónica
