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1162
resultados
Última actualización
22/08/2025 [07:10:00]
Resultados 825 a 850 de 1162
Resumen de: US2025253446A1
A battery cooling system may include a battery housing configured to be coupled to a chassis of the battery electric vehicle. A battery cooling system may include a plurality of battery cells positioned within the battery housing, each of the plurality of battery cells including a pole. A battery cooling system may include a liquid cooling plate arranged in thermal communication with the poles of the plurality of battery cells. A battery cooling system may include a liquid cooling system providing coolant to the liquid cooling plate. A battery cooling system may include an airflow passageway defined between the battery housing and the plurality of battery cells. A battery cooling system may include a vehicle heating, ventilation, and air conditioning (HVAC) system providing cooled air to the airflow passageway.
Resumen de: US2025253382A1
A battery end plate includes a cap, a current collector, and a terminal. The cap has an interior face, an exterior face opposite the interior face, and a top side extending between the interior face and the exterior face. A passageway extends in a vertical direction into the top side and a slot extends in a longitudinal direction perpendicular to the vertical direction into the interior face. The passageway communicates with the slot between the interior face and the exterior face. The current collector has a tab and is disposed on the interior face; the tab extends into the slot. The terminal is disposed in the passageway and is electrically connected with the tab of the current collector.
Resumen de: US2025253392A1
Lithium-containing polycrystalline ceramic sheets include grains having an average grain size of less than 5 μm, a relative density greater than 90%, and a thickness of up to 200 μm. In aspects, the lithium-containing polycrystalline ceramic sheets include an outer edge of the sheet that has no height variations greater than 1 mm from baseline in a perimeter trace. In aspects, the lithium-containing polycrystalline ceramic sheets include microstructural features of an outer edge of the sheet are no greater than about 1⁄3 the thickness of the sheet. In aspects, the lithium-containing polycrystalline ceramic sheets include an outer edge of the sheet that is enriched in lithium relative to a bulk of the sheet.
Resumen de: US2025253381A1
The embodiments of the application provide a winding device and a winding method. The winding device includes a winding member, a traction member, a detection mechanism and an adjustment mechanism. The winding member is used to wind an electrode sheet and a separation membrane. The traction member is used to pull the separation membrane passing through the winding member, and the traction member is configured to release the separation membrane when the winding member winds the electrode sheet and the separation membrane. The detection mechanism is used to sense a tension change of the separation membrane located between the winding member and the traction member. The adjustment mechanism is configured to adjust a tension of the separation membrane according to the tension change of the separation membrane sensed by the detection mechanism.
Resumen de: WO2025163113A1
The invention relates to a battery, comprising at least two battery cells (1) and a balancing module (2) for carrying out charge balancing of the battery cells (1), wherein the balancing module (2) is designed to dissipate the excess charge of at least one battery cell (1) at a resistor (3). The battery according to the invention is characterised in that the resistor (3) is connected to one of the battery cells (1) in a thermally conductive manner.
Resumen de: WO2025162542A2
The invention relates to a method for producing a cylindrical battery cell. The method comprises the following steps: a) providing (100) a cylindrical battery cell blank (11) having an outer wall which comprises steel; b) applying (300) a primer (19) to at least parts of the outer wall; c) closing (400) the battery cell blank (11) by laser welding or by means of a crimping closure; and d) filling (500) the battery cell blank (11) with an electrolyte (18). The invention further relates to a cylindrical battery cell (10), to a battery pack (20) comprising a plurality of cylindrical battery cells (10), to a method for producing the battery pack and to a motor vehicle (30) comprising at least one battery pack (20).
Resumen de: US2025253423A1
The present invention relates to a method for separating the electrode materials from the current collector in a battery electrode, said method comprising: a—providing at least one electrode said electrode comprising a current collector and a layer of electrode material adhered onto said current collector, said layer of electrode material comprising electro active materials in powder form and a binder b—contacting said electrode to a gas or a supercritical fluid at a pressure of (60) to 300 bar, c—rapidly decreasing the pressure of said gas or supercritical fluid of at least (60) bar within (30) seconds or less thereby causing rapid decompression of said gas.
Resumen de: US2025253448A1
Provided are a battery cell, battery, and an electrical equipment. The battery cell includes a housing and a first insulating member. The housing provides a welding mark region. The first insulating member is arranged on an outer surface of the housing, and the first insulating member provides a first thickened region, wherein the first thickened region covers at least a portion of the welding mark region. This reduces the risk of the welding mark region piercing through the first insulating member, which could cause insulation failure of the battery cell. Thus, the insulation performance of the battery cell is improved.
Resumen de: US2025253377A1
The invention relates to an electrochemical cell assembly including a first end plate assembly, a stack of cell repeat units, and a second end plate assembly. The stack is held in a compressed state between the first end plate assembly and the second end plate assembly. The first end plate assembly and/or the second end plate assembly each include an end plate. The electrochemical cell assembly includes an insulation plate located between the end plate and the stack. At least one through-hole is provided in the insulation plate and a sealing insert is provided in the at least one through-hole of the insulation plate, the sealing insert defining a fluid pathway along the stacking direction. The invention also relates to an end plate assembly and a method of manufacturing an electrochemical cell assembly.
Resumen de: US2025253379A1
Provided is a battery cell stacking jig for stacking a plurality of battery cells of a secondary battery. Additionally, the battery cell stacking jig can include a fork supporting both ends of the battery cells so that the plurality of battery cells are seated therein, and the fork is disposed in a plurality at a certain distance apart with respect to a horizontal direction. The battery cell stacking jig can further include a gripper movably provided on an upper portion of the fork, and disposed in a plurality with respect to the horizontal direction, and being configured to load a battery cell perpendicularly to the fork such that the battery cell is seated in the fork, and a transfer connected to the plurality of grippers and configured to move the grippers to the upper portion of the fork.
Resumen de: US2025253442A1
A battery includes a plurality of cells and a plurality of thermal barriers. The plurality of cells is configured to store electrical energy. Each of the thermal barriers is disposed between adjacent cells of the plurality of cells. Each thermal barrier includes solid regions and defines cutouts between the solid regions. Each solid region and each cutout within each thermal barrier are aligned along a plane. Each solid region and each cutout within each thermal barrier have a dimension that is perpendicular to the plane and extends between the corresponding adjacent cells.
Resumen de: WO2025165278A1
The present invention relates to battery pack (100) comprising a plurality of battery cells (120) coupled together in a predetermined manner for providing a predetermined battery pack voltage, said battery pack (100) comprising: a first housing portion (110a) and a second housing portion (110b) configured to be coupled together to a housing (110), electrical connections (135) provided in said first housing portion (110a) and said second housing portion (110b) configured for electrically connecting one battery cell with at least one other battery cell for providing said predetermined battery pack voltage, at least one extinguishing space (155, 157, 170) at least partially surrounding said plurality of battery cells (120), wherein said at least one extinguishing space (155, 157, 170) is configured to be in fluid connection with a fire extinguishing unit (150a, 150b, 160).
Resumen de: WO2025162845A1
The invention relates to a battery system having a plurality of battery cells (11) and a first printed circuit board (12), wherein - a number of conductive and preferably ferromagnetic elements (14) are arranged on or in the first printed circuit board (12), and - a magnet (15) is arranged between a number of battery cells (11) and a conductive and preferably ferromagnetic element (14) such that - the magnetic force (15) of said magnet holds the associated battery cell (11) on the first printed circuit board (12) at least in a direction toward the first printed circuit board (12), and such that - the magnet (15) establishes an electrically conductive connection between a pole of the associated battery cells (11) and the first printed circuit board (12). The invention also relates to a control unit (30) and to a monitoring method.
Resumen de: US2025253440A1
A fluid equalization tank for equalizing a change in volume of a cooling fluid in a fluid circuit for immersion cooling of a battery of a vehicle is disclosed. with the fluid equalization tank includes a receiving chamber for receiving the cooling fluid and an overflow chamber for receiving the excess cooling fluid from the receiving chamber. The receiving chamber and the overflow chamber are fluidically connected via an overflow duct.
Resumen de: US2025253433A1
A cooling plate assembly, an assembly method applied to the cooling plate assembly, a battery module and a battery pack are provided. The cooling plate assembly includes a cooling plate configured to control a temperature of the battery module; and at least one current collector connected to an end portion of the cooling plate through bonding. The cooling plate assembly is conducive to improving the connection stability between the cooling plate and the current collector and the assembly efficiency.
Resumen de: US2025253437A1
An assembly includes a first housing component and a second housing component cooperating with the first housing component to provide an enclosed internal cavity. At least one cell stack includes one or more battery cells that are positioned within the enclosed internal cavity. A first plurality of guide features are formed on at least one of the first housing component and the second housing component, and a second plurality of guide features are formed on the at least one of the first housing component and the second housing component.
Resumen de: US2025253435A1
A battery, an energy storage apparatus, and an electric device are disclosed. The battery includes a battery cell, a first box, a second box, and a flow channel, where the first box and the second box are connected to each other so as to jointly define a closed space used for accommodating the battery cell; and the flow channel is configured to accommodate a heat exchange medium so as to adjust the temperature of the battery cell. The battery further includes an inlet tube and an outlet tube, where the inlet tube and the outlet tube are both in communication with the flow channel; and the inlet tube and the outlet tube are both located on a side of the first box facing the second box and outside the closed space. The technical solution provided in the present application can increase the energy density of the battery.
Resumen de: WO2025162326A1
Disclosed are a battery pack, a battery cabin, and a fire fighting method. The battery pack comprises: a box body used for placement of battery cells and protecting a battery; a protection module used for discharging smoke out of a battery environment and cooling the battery; a high-temperature early warning module used for decomposing when thermal runaway occurs in the battery, so that a fire extinguishing agent can completely cover the battery; and a battery management apparatus used for monitoring in real time the voltage and temperature of the battery cells and the concentration of the smoke, and giving an early warning about the thermal runaway state of the battery.
Resumen de: WO2025161344A1
An electrode sheet, an electrode assembly, a battery cell, a battery, and an electric device. The electrode sheet is applied to a battery. The electrode sheet comprises a current collector and an active material layer. The current collector defines a coated region coated with an active material layer and a tab region not coated with an active material layer. The coated region comprises a main body region and a perforated region provided between the main body region and the tab region, wherein one or more holes are formed in the portion of the current collector at the perforated region. By configuring the coated region to comprise a main body region and a perforated region located between the main body region and the tab region, and forming one or more holes in the portion of the current collector at the perforated region, in the process of cold-pressing the electrode sheet, the elongation rate of the perforated region can be reduced, and the mismatch between the elongation rate of the coated region and the elongation rate of the tab region is alleviated, thereby reducing the formation of the tab region into crescent curves and waves, and reducing the occurrence of folding or wrinkling on the tab region during electrode sheet winding.
Resumen de: WO2025161347A1
Provided are a silicon-carbon composite material and a preparation method therefor, and a secondary battery and an electric apparatus. The silicon-carbon composite material comprises: a porous carbon matrix and a silicon-based material, wherein at least a portion of the silicon-based material is distributed in pores of the porous carbon matrix. In addition, the silicon-carbon composite material satisfies Q2/Q1≤0.7. A button battery is used to charge and discharge the silicon-carbon composite material, the capacity of the silicon-carbon composite material is Q1 when the voltage is from 0.2V to 0.4V in a charging process, and the capacity of the silicon-carbon composite material is Q2 when the voltage is from 0.4V to 0.6V in the charging process.
Resumen de: WO2025161599A1
A positive electrode sheet (100) and a preparation method therefor, a battery, and a vehicle. The positive electrode sheet (100) comprises a current collector (11), a first positive electrode active material layer (12) and a second positive electrode active material layer (13). The first positive electrode active material layer (12) is arranged on at least one side of the current collector (11), the first positive electrode active material layer (12) comprises a first positive electrode active material, and the first positive electrode active material comprises LiNixCoyMn1-x-yO2, wherein 0.6≤x≤0.95, 0.03≤y≤0.1, and 0
Resumen de: US2025248494A1
An assembly is provided that includes an umbrella hub and a battery pack. The umbrella hub includes a hub body and a support portion. The hub body to be disposed about an umbrella pole. The hub body including an upper surface and a lower surface. The support portion disposed at the lower surface of the hub body. The battery pack includes a housing, an outer periphery, an inner periphery, a projection, and a battery cell. The housing includes a first portion and a second portion. The outer periphery and the inner periphery are each defined in part by the first portion and the second portion. The projection extends from the inner periphery. The projection to rest on the support portion of the umbrella hub to couple the battery pack to the umbrella hub. The battery cell disposed in the housing to supply or receive power through an electrical connection.
Resumen de: US2025250668A1
This invention relates to continuous process for preparing composite particles by continuous introduction of a porous particle feedstock and a silicon precursor gas into a first reaction zone and continuous withdrawal of a composite particles and an effluent gas from the first reaction zone, the composite particles comprising a porous particle framework and elemental silicon within the pores of the porous particle framework.
Resumen de: US2025250384A1
Disclosed herein are bio-based copolymers comprising in polymerized form (i) at least one polymerizable bio-based monomer containing one phenolic hydroxyl group which has been derivatized to provide at least one polymerizable functional group which is an ethylenically unsaturated functional group (such as a methacrylate group), where the precursors of the polymerizable bio-based monomers are derived from raw lignin-containing biomass, and (ii) at least one ion-conducting co-monomer other than the bio-based monomer. Also disclosed herein are binders comprising the bio-based copolymers, electrodes comprising the binder, polymer electrolytes comprising the bio-based copolymer and an electrochemical device comprising an electrode in electrical contact with a polymer electrolyte, wherein at least one of the electrode and the polymer electrolyte comprises the bio-based copolymer.
Nº publicación: US2025250272A1 07/08/2025
Solicitante:
BYD COMPANY LTD [CN]
BYD COMPANY LIMITED
Resumen de: US2025250272A1
The present application provides diamine compounds, polyimide acids, polyimides, and preparation methods therefor and uses thereof. The diamine compound has a chemical structural formula represented by formula (I),wherein R1 and R2 are independently selected from a single bond, substituted or unsubstituted alkylene, substituted or unsubstituted alkenylene, substituted or unsubstituted alkynylene, substituted or unsubstituted arylene, substituted or unsubstituted arylenealkyl, substituted or unsubstituted heteroarylene, substituted or unsubstituted heteroarylenealkyl, or substituted or unsubstituted alicylidene.
BOPI
Sede Electrónica
