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1712
resultados
Última actualización
08/06/2025 [07:17:00]
Resultados 725 a 750 de 1712
Resumen de: EP4564530A2
The present disclosure relates to a battery cell heating apparatus (100, 200, 300) and a battery module (10) including the battery cell heating apparatus (100, 200, 300). The battery cell heating apparatus (100, 200, 300) includes a heater (130, 230, 330) configured to emit heat to heat a battery cell (11), a circuit part (140, 240, 340) electrically connected to the heater (130, 230, 330) and configured to supply power to the heater (130, 230, 330), an insulator (115, 120, 220, 320) configured to reduce heat transfer such that the circuit part (140, 240, 340) is heated less by the heat emitted by the heater (130, 230, 330), and an outer cover (101, 201, 301) which surrounds and fixedly holds the heater (130, 230, 330), the circuit part (140, 240, 340), and the insulator (115, 120, 220, 320).
Resumen de: EP4564521A1
The present disclosure relates to a busbar heating apparatus and a battery module and is directed to providing a busbar heating apparatus, which heats a busbar to suppress the degradation of a battery module in a low-temperature environment, and a battery module including the same. To this end, the present disclosure provides a busbar heating apparatus (100A,100B) including a plurality of heating parts (101), each of the plurality of heating parts including a heating material heated by electric energy and being in contact with a plurality of busbars (40) of a battery module to heat the plurality of busbars, and one or more connecting parts (110) electrically connecting the plurality of heating parts.
Resumen de: EP4564645A1
The present invention relates to a battery management apparatus that includes a temperature sensor configured to measure a temperature for each section of each battery cell included in a battery module, a heat management module configured to control a temperature of the battery cell or the temperature for each section of each battery cell, and a processor, wherein the processor is configured to calculate a maximum average slope value (gCell1 to gCellN) for each battery cell which is a maximum value among a plurality of average temperature slopes for respective sections of each battery cell, wherein the maximum average slope value corresponds to a maximum value among a plurality of average temperature deviations with nearby sections for respective sections of each battery cell, and perform temperature control or charging current control in a specific manner on a weak battery cell based on the maximum average slope values (gCell1 to gCellN) of a plurality of battery cells.
Resumen de: EP4564525A1
There is provided a method for disassembling an electrode body (2) including a separator separating step (S 1) to separate the outermost separator (23 S) of the separators and the active material layer (KT2) at a boundary face (KM) with the active material layer (KT2) by extending the outermost separator so that an extension point (NP) is serially moved along the boundary face, a separator peeling step (S2) to peel off the outermost separator that has been separated from the active material layer in the separator separating step, and a disassembling step (S3) to disassemble a stacked state of the electrode body for each partial electrode (2XR) including the active material layer from which the outermost separator has been peeled off in the separator peeling step.
Resumen de: EP4564457A1
Provided in the present application are a negative electrode plate, a secondary battery, an electric device, a method and the use. A negative electrode active material layer of the negative electrode plate comprises lithiophilic nanoparticles, and the lithiophilic nanoparticles can be alloyed with lithium.
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.
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.
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.
Resumen de: EP4564505A1
A gel polymer electrolyte for a lithium battery, a lithium battery including the gel polymer electrolyte, and a method of manufacturing the lithium battery are provided. The gel polymer electrolyte includes a gel polymer and a liquid electrolyte, and the gel polymer is a crosslinked product of i) a multifunctional acrylic first polymerizable monomer including three or more polymerizable functional groups and ii) a second polymerizable monomer including a perfluoropolyoxyalkylene (PFPE) unit and two or more polymerizable functional groups.
Resumen de: EP4564547A1
A battery cell includes: a case accommodating an electrode assembly; a cap plate on the case and sealing the case; a vent in the cap plate and configured to open in response to a change in pressure in the case; a blocking member seated on the cap plate and facing the vent; and a fixing member surrounding the case and the cap plate and fixing the blocking member to the cap plate.
Resumen de: EP4564551A1
An energy storage system configured to lower an internal pressure of a container and prevent an exposure of a flame to the outside when a battery fire occurs. The energy storage system includes a battery rack in which at least one battermodule is accommodated, a container in which the battery rack is accommodated, a duct in the container, and a flame blocking portion in an opening of the duct and configured to block a flame generated inside the container from being exposed to an outside of the container through the duct.
Resumen de: EP4564503A1
A gel polymer electrolyte for a lithium battery and a lithium battery including the gel polymer electrolyte are disclosed. The gel polymer electrolyte includes a gel polymer and a liquid electrolyte, the gel polymer may be i) a crosslinked product of a polyfunctional acryl-based monomer having 3 or more polymerizable functional groups, or ii) a crosslinked product of a first polymerizable monomer and a second polymerizable monomer, the first polymerizable monomer being a polyfunctional acryl-based monomer having 3 or more polymerizable functional groups, and the second polymerizable monomer being one or more selected from among a urethane acryl-based monomer having two or more polymerizable functional groups and a polymerizable monomer having two or more polymerizable functional groups and containing a perfluoropolyether unit, wherein the liquid electrolyte includes a lithium salt, an organic solvent, and butyronitrile, and the lithium salt may include lithium difluoro(oxalato)borate and lithium tetrafluoroborate.
Resumen de: EP4564472A1
The present application provides a secondary battery and an electrical device. The secondary battery comprises a negative electrode sheet; the negative electrode sheet comprises a negative electrode current collector and a negative electrode film layer provided on at least one surface of the negative electrode current collector and comprising a negative electrode active material; the negative electrode active material comprises a carbon-based material and a silicon-based material; the carbon-based material comprises secondary particles formed by aggregation of primary particles; the silicon-based material comprises secondary particles formed by aggregation of primary particles.
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: EP4564460A1
This application discloses a positive electrode plate, a secondary battery, and an electric apparatus. The positive electrode plate includes a positive electrode active material layer, and the positive electrode active material layer includes a first positive electrode active material and a second positive electrode active material. The first positive electrode active material includes LiaNibCocM1dM2eOfR'g, where 0.75≤a≤1.2, 0
Resumen de: EP4564558A1
An energy storage system configured to reduce damage caused by a flame in response to a battery igniting. The energy storage system includes a cabinet, a battery modules inside the cabinet and each including a vent, a first channel facing the vent and including a first end portion and a second end portion spaced apart from each other in a first direction, a second channel inside the cabinet and connected to the second end portion, a guide member in the first channel and configured to guide movement of a flame or gas discharged from the vent in the first direction, and a discharge member connected to the second channel and configured to discharge a gas introduced into the second channel to the outside of the cabinet.
Resumen de: EP4564581A1
A busbar assembly according to an embodiment of the present disclosure includes: a busbar for guiding electrical connection inside the battery pack; and a glass fiber layer that includes glass fibers and surrounds the busbar, wherein at least one glass fiber forms a glass fiber strand, and afire resistant silicone layer is coated onto the surface of the glass fiber strand.
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).
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).
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.
Resumen de: EP4564470A1
Disclosed is a lead-acid battery including: a positive electrode plate; a negative electrode plate; a separator interposed between the positive electrode plate and the negative electrode plate; and an electrolyte solution, in which the positive electrode plate contains a positive electrode material, the negative electrode plate contains a negative electrode material, the negative electrode material contains a Bi element, a content of the Bi element in the negative electrode material is 100 ppm or more and 300 ppm or less on a mass basis, the separator includes a resin substrate, and a conductive layer is provided between the negative electrode plate and the resin substrate.
Resumen de: EP4564494A1
Provided is a manufacturing method of a battery, including a step of forming a positive electrode on a surface of a first collector of a first stage having a surface on which the first collector is provided to obtain a first laminate, a step of forming a negative electrode on a surface of a second collector of a second stage having a surface on which the second collector is provided to obtain a second laminate, and a step of laminating the first laminate, the second laminate, and a separator to obtain a laminate including the first stage, a battery which includes the first collector, the positive electrode, the separator, the negative electrode, and the second collector, and the second stage in this order.
Resumen de: EP4564467A1
Provided are a production method of an electrode material, including a classification step of classifying an active material into two or more active material groups having different average particle diameters, a first treatment step of subjecting each of the two or more active material groups to a surface smoothing treatment, and a mixing step of mixing the two or more active material groups after the surface smoothing treatment with an electrolytic solution; and applications thereof.
Resumen de: EP4564466A1
Provided is a manufacturing method of a molded body for a sheet-like electrode, the manufacturing method including a step of forming an electrode material film on a support using an electrode material which contains an electrode active material and has a concentration of solid components of 30% by volume or more, in which, with the electrode material supplied onto the support, the electrode material film is formed by, while maintaining a constant distance from a surface of the support, relatively moving a blade having a shape in which both end parts in a width direction protrude than a center portion in the width direction and the center portion in the width direction vibrates, along the surface of the support such that a thickness is regulated by a void between the surface of the support and the center portion of the blade in the width direction and a width is regulated by both end parts of the blade in the width direction, which protrude than the center portion of the blade in the width direction.
Nº publicación: EP4564465A1 04/06/2025
Solicitante:
ZEON CORP [JP]
Zeon Corporation
Resumen de: EP4564465A1
A device comprising:a support unit;a feeding unit that feeds granulated particles on or above the support unit;a conveying unit that conveys the granulated particles that have been fed on or above the support unit;a squeegee unit that levels the conveyed granulated particles to form a granulated particle layer, the squeegee unit including a passage portion, and non-passage portions that are provided at both ends of the passage portion; anda forming unit that applies a load to the granulated particle layer to form an electrode mixture layer, whereinthe squeegee unit has a first adjusting mechanism capable of continuously changing a gap in a width direction so that gaps at end portions in the width direction of the passage portion are narrower than a gap at a central portion.
BOPI
Sede Electrónica
