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1712
resultados
Última actualización
08/06/2025 [07:17:00]
Resultados 775 a 800 de 1712
Resumen de: EP4564526A1
The present disclosure refers to a battery system (100). The battery system (100) includes a plurality of battery cells (10) accommodated in a housing (12). The battery system (100) comprises a cooling circuit (20) including a cooling channel (26) and configured to conduct a coolant through the cooling channel (26), wherein the coolant is in thermal contact with at least a portion of the plurality of battery cells (10) while flowing through the cooling channel (26). The battery system (100) further comprises an eddy current heater (30) including a ferrous material (40), wherein the eddy current heater (30) is configured to heat the ferrous material (40) by inducing eddy currents in the ferrous material (40) and to transfer heat to the coolant in the cooling channel (26). Further, the ferrous material (40) is disposed inside at least a portion of the cooling channel (26) and/or surrounds at least a portion of the cooling channel (26).
Resumen de: EP4564531A1
The present disclosure refers to a battery system (100), comprising:a plurality of battery cells (12, 14, 16, 18, 22, 24, 26, 28) arranged in at least one battery cell stack (10, 20), wherein thermally isolating cell spacers (30) are positioned between the battery cells (12, 14, 16, 18, 22, 24, 26, 28), anda heat transfer unit (40) being disposed on one side of the at least one battery cell stack (10, 20) and comprising a first heat transfer element (52) and a second heat transfer element (54) thermally isolated from each other. The first heat transfer element (52) is adapted to establish a thermally conductive contact at least one of battery cells (12, 16, 22, 26) arranged in even low of the at least one battery cell stack (10, 20) and the second heat transfer element (54) is adapted to establish a thermally conductive contact at least one of battery cells (14, 18, 24, 28) arrange in odd low of the at least one battery cell stack (10, 20).
Resumen de: EP4564532A1
The disclosure relates to a battery cell (100), comprising: a housing (20), an electrode material (12, 16), a current collector (30) and an interface component (40), the housing (20) comprising the electrode material (12, 16), at least a portion of the current collector (30) and the interface component (40), the current collector (30) comprising a first connection portion (32) being connected to the electrode material (12, 16) and a second connection portion (34) being connectable to a battery terminal (210), and the interface component (40) being arranged between the current collector (30) and the housing (20), the interface component (40) being in contact with the current collector (30) and the housing (20), the interface component (40) being configured for electrically insulating the housing (20) from the current collector (30), and the interface component (40) comprising an interface material having a thermal conductivity of at least 1 W/(m*K).
Resumen de: EP4564026A1
A battery management apparatus according to an embodiment disclosed herein includes a memory and a controller configured to determine whether battery data exceeds a threshold value and whether a mature time of battery data exceeding the threshold value exceeds a threshold time, perform diagnosis of the battery data based on a result of the determination, and record identification information of the battery data in the memory based on a result of the determination.
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: 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).
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: 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: 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.
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: 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).
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.
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: 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.
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
