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1535
resultados
Última actualización
02/10/2025 [07:24:00]
Resultados 1025 a 1050 de 1535
Resumen de: WO2025189453A1
Provided in the present application are a battery cell, a battery and an electrical device. The battery cell (200) comprises a casing (20), an electrode assembly (30) and adapter components (40), a first space (2001) being formed between an end surface of the electrode assembly and a side wall of the casing; electrode terminals (203), supports (205) and a pressure relief mechanism (202) are provided on a first wall (201) of the casing, a second space (2001) being formed between the pressure relief mechanism and the electrode assembly, and exhaust paths (2051) being provided on the supports; in a first direction, the projection area of each adapter component in an exhaust path is smaller than the area of the cross section of the exhaust path. Thus, when thermal runaway occurs in the battery cell, the supports can stop an end part of the electrode assembly from abutting against the first wall, and the adapter components will not block flow spaces between the exhaust paths and the second space, so that the first space is communicated with the second space via the exhaust paths, thus relieving the pressure of the first space.
Resumen de: WO2025189451A1
A battery cell (20), a battery (100), and an electrical apparatus (1000), which are applicable to the technical field of batteries. The battery cell (20) comprises a casing (20'), an electrode assembly (23), an insulating member (24), and a support member (25). The casing (20') is provided with a first wall (22a), a second wall (22c) and a pressure relief mechanism (22b), the pressure relief mechanism (22b) is arranged on the first wall (22a), and the first wall (22a) and the second wall (22c) are arranged to intersect each other. The electrode assembly (23) is provided in the casing (20'), and a first space (a) is formed between the outer peripheral wall of the electrode assembly (23) and the second wall (22c). The insulating member (24) is provided in the casing (20') and is located between the first wall (22a) and the electrode assembly (23), and a second space (b) is formed between the insulating member (24) and the pressure relief mechanism (22b). A second exhaust channel (25a) is formed on the support member (25). The projection area of the support member (25) on the insulating member (24) is located outside a first exhaust channel (24a), and the melting point of the support member (25) is greater than the melting point of the insulating member (24). According to the battery cell (20), the battery (100), and the electrical apparatus (1000), the risk of cracking of a welding seam on the side surface of the battery cell (20) can be reduced to a certain extent.
Resumen de: WO2025189486A1
The present application provides a gel polymer and a use thereof. A backbone of the gel polymer comprises a linear polymer and a cross-linked polymer, wherein the cross-linked polymer comprises a urea group and an ester group, and a molar percentage ratio of the urea group to the ester group is (0.03-0.40):1. When a gel polymer electrolyte composite separator prepared from the gel polymer is applied to a battery, the electrochemical performance of the battery can be improved, and the service life of the battery is prolonged.
Resumen de: US2025293408A1
To provide a secondary battery that has both high safety and a short charge and discharge time. The secondary battery is a wound secondary battery, and a positive electrode current collector of a positive electrode includes a first tab and a second tab, and a negative electrode current collector of a negative electrode includes a third tab and a fourth tab. The first tab is positioned in a portion closer to a center of a winding than the second tab is, and the third tab is positioned in a portion closer to the center of the winding than the fourth tab is. The first tab and the second tab are bonded in a first bonding portion, and the third tab and the fourth tab are bonded in a second bonding portion. The positive electrode active material includes a first region and a second region positioned on a surface side of the positive electrode active material. The first region contains lithium, cobalt, and oxygen. The second region contains lithium, cobalt, magnesium, and oxygen.
Resumen de: US2025293345A1
An energy storage system includes a container, a rack frame inside the container, a battery module configured to be stored in the rack frame, a cooling line that is connected to the battery module and configured to allow coolant to circulate through the battery module, and a blocking portion configured to block the coolant from leaking to an outside of the container.
Resumen de: US2025293410A1
A case of the herein disclosed electric storage device includes an electrode terminal, and a sealing material. The electrode terminal includes a shaft part and a plate part. Then, the sealing material includes a side surface protecting part configured to cover the side surface of the plate part, and a locking part configured to continue to a top end of the side surface protecting part and configured to cover a peripheral edge part of the connection surface. According to the electric storage device including the above described configuration, it is possible by the locking part of the sealing material to regulate a rise of the electrode terminal, and thus it is possible to inhibit a breakage of the sealing material and a detachment of the electrode terminal.
Resumen de: US2025293406A1
A battery cell includes an electrode assembly and an electrode lead-out member. The electrode assembly includes a body and a tab. The electrode lead-out member is configured to lead out electric energy of the electrode assembly, and the electrode lead-out member includes a first portion. The tab includes a first connecting segment and a second connecting segment that are connected in sequence, the first connecting segment is connected to the body, the second connecting segment is bent with respect to the first connecting segment, and at least one of the first connecting segment and the second connecting segment is connected to the first portion.
Resumen de: US2025293401A1
The present disclosure provides a cell stack having a rectangular parallelepiped shape, a plurality of rectangular cells being stacked in the cell stack, and each of the rectangular cells including a terminal provided in an end face thereof in a longitudinal direction. The cell stack includes a plate-like bus bar configured to electrically connect the terminals of the adjacent rectangular cells to each other. The bus bar includes a first slit extending in a stacking direction of the rectangular cell so that at least a part of the first slit overlaps an area that straddles a pair of welded parts welded to the respective terminals of the adjacent rectangular cells, and a second slit extending in parallel with the first slit outside the area that straddles the pair of the welded parts. A width of the first slit is larger than a width of the second slit.
Resumen de: US2025293255A1
A positive electrode for an all-solid-state battery having adjusted properties of a composition related to a carbon-based conductive material, and an all-solid-state battery including the same is provided. The positive electrode for an all-solid-state battery includes a positive-electrode active material, a carbon-based conductive material, a binder, and an inorganic solid electrolyte, wherein the carbon-based conductive material is a fibrous carbon-based conductive material having a length from 1 μm to 100 μm. The fibrous carbon-based conductive material can improve the initial discharge efficiency of the all-solid-state battery when mixed with the positive-electrode active material in an appropriate ratio, as well as improve the capacity retention rate at a high-rate discharge above 0.5 C.
Resumen de: US2025293291A1
A composite electrolyte exhibits improved mechanical properties and ionic conductivity while preventing a liquid leakage, its preparation method and a secondary battery comprising the same. The composite electrolyte may include a liquid electrolyte; a crosslinked polymer of monomers having a curable functional group; and oxide-based solid electrolyte particles dispersed on the crosslinked polymer and having a particle size of more than 300 nm.
Resumen de: US2025293289A1
An embodiment provides an all-solid-state battery including a solid electrolyte layer, and a positive electrode layer and a negative electrode layer disposed with the solid electrolyte layer interposed therebetween, wherein the solid electrolyte layer includes a first solid electrolyte, the positive electrode layer or the negative electrode layer includes an electrode active material and a second solid electrolyte surrounding a part of the surface of the electrode active material with an average thickness of 1 nm to 10 nm, the electrode active material includes a positive electrode active material, the positive electrode active material includes a high cobalt-based positive electrode active material represented by chemical formula 1: LiCoxM1yM21-x-yO2.
Resumen de: US2025293335A1
A temperature control method for a battery system includes: acquiring the temperature of each of a plurality of battery clusters of the battery system; and determining a target battery cluster among the plurality of battery clusters according to the temperature of each battery cluster. By means of the technical solution, temperature control is performed on the target battery cluster among the plurality of battery clusters in a targeted manner.
Resumen de: US2025293327A1
A power storage device includes a power storage module including a plurality of power storage cells, and a case that accommodates the power storage module. Outer surfaces of the case are respectively provided with depressed portions, which indicate cut portions of the case to be cut when the power storage device is disassembled.
Resumen de: US2025293284A1
A lamination method for an electrode sheet comprises: connecting a first end of each of a plurality of first sheets to a first fixing member; connecting a first end of each of a plurality of second sheets to a second fixing member; oppositely and fixedly configuring the first fixing members and the second fixing members; and sequentially arranging second ends of the plurality of first sheets and second ends of the plurality second sheets, and staggeredly stacking the plurality of first sheets and the plurality of second sheets.
Resumen de: WO2025189485A1
The present application relates to a negative electrode sheet, an electrochemical apparatus and an electronic device. The negative electrode sheet comprises: a negative electrode current collector, a first film layer, and a second film layer. The first film layer comprises a first negative electrode active material, which is graphite; the second film layer comprises a second negative electrode active material, which comprises a silicon-carbon material; and relative to the second film layer, the first film layer is close to a surface of the current collector. During a nanoindentation test, the second film layer satisfies: the recoverable displacement thereof being 60% to 100%. By controlling the recoverable displacement of the second film layer during a nanoindentation test within the range of 60% to 100%, the expansion of a battery during cycling can be reduced while the energy density of the battery is not reduced.
Resumen de: WO2025189467A1
The present application relates to the technical field of batteries, and provides a battery cell, a battery, and an electric device. The battery cell comprises a casing, electrode assemblies, fixing members, electrode terminals, and first insulating members. The casing is provided with a wall portion. The electrode assemblies are accommodated in the casing. The fixing members are connected to the wall portion. Each fixing member comprises a fixing portion. The fixing portions are located on one side of the wall portion in the thickness direction of the wall portion. The electrode terminals are arranged on the wall portion, and the electrode terminals are electrically connected to the electrode assemblies. Each first insulating member is disposed between the corresponding electrode terminal and the corresponding fixing member so as to insulate and isolate the electrode terminal and the fixing member. Each fixing portion comprises a main body area and a thinned area which are connected to each other; the thinned area is farther away from the wall portion than the main body area in the thickness direction of the wall portion; each electrode terminal is provided with an assembly portion extending between the corresponding thinned area and the wall portion; the projection of the main body area does not overlap with the projection of the assembly portion; and the thinned area is configured to cooperate with the wall portion to limit the movement of the electrode terminal in the thi
Resumen de: WO2025189484A1
A negative electrode sheet, an electrochemical apparatus, and an electronic device. The negative electrode sheet (100) comprises a negative electrode current collector (101), first film layers (110), and second film layers (120). Each first film layer (110) comprises a first negative electrode active material, and the first negative electrode active material is graphite; each second film layer (120) comprises a second negative electrode active material, and the second negative electrode active material comprises a silicon carbon material; and relative to the second film layer (120), the first film layer (110) is close to the surface of the negative electrode current collector (101). The mass percentage content of element Si in the second film layer (120) is W1; a plurality of strip-shaped grooves (122) are formed along the surface of each second film layer (120); and a ratio of the width of each groove (122) to the width of each groove spacing (121) is K, wherein 0.2≤K≤0.6, and K and W1 satisfy: 2.4≤K/W1≤4.
Resumen de: US2025293397A1
The present disclosure provides a laminated separator for a nonaqueous electrolyte secondary battery which makes it possible to obtain a battery having an excellent rate characteristic and which has excellent heat resistance, the laminated separator including a polyolefin-based substrate, a heat-resistant layer that is provided on one surface or both surfaces of the polyolefin-based substrate, and a particle layer which is provided on at least one side of the laminated separator, a standard deviation of an IR peak intensity ratio (peak intensity which is of a resin contained in the particle layer and which is in an infrared absorption spectrum/peak intensity which is of a resin contained in the heat-resistant layer and which is in an infrared absorption spectrum) on a surface of the laminated separator which surface is located on the at least one side on which the particle layer is provided being not more than 0.025.
Resumen de: US2025293395A1
A separator membrane may include a porous carrier. The separator membrane may include a magnesium fluoride (MgF2) coating on at least a portion of the porous carrier. A distribution of a pore size of the separator membrane and a surface energy of the separator membrane may be at least partially determined by the MgF2 coating.
Resumen de: US2025293257A1
A lithium-ion battery component is presented. The lithium-ion battery component has an electrode with a current collector and an electrode sheet laminated thereon including conducting agents and a polar cross-linkable B-A-B binder mechanically binding the conducting agents in a sterically stabilized dispersion configured to permit volume expansion of the electrode sheet during charge of the electrode and facilitate volume contraction of the electrode sheet during discharge of the electrode.
Resumen de: US2025293252A1
A battery and an electric device are described. The battery comprises a positive electrode sheet. The positive electrode sheet contains a first positive electrode active material and a second positive electrode active material, and satisfies formula (I)0.1
Resumen de: US2025293399A1
A power storage cell includes: a cell module including a plurality of cell units; a cell case that accommodates the cell module; and a bonding member provided within the cell case. The cell case is formed in a rectangular parallelepiped shape. The cell module has a facing corner that faces a three-dimensional corner of the cell case. The bonding member includes a corner bonding portion that bonds the three-dimensional corner of the cell case to the facing corner.
Resumen de: US2025293398A1
An oxide solid electrolyte membrane carrier comprises a substrate, a first coating and a second coating. The first coating is coated on a surface of the substrate, the second coating is coated on a surface of the first coating. The first coating is a binder layer. The second coating is a resin layer.
Resumen de: US2025293362A1
A battery includes: a cell array including a plurality of cells, and a connection part that provides an electric connection between adjacent ones of the cells; and a case housing the cell array. The case includes a case body that the cell array is sandwiched and held in. In a cross-section of the case body, an opening portion that opens in a predefined direction (−Z-direction) is provided.
Nº publicación: US2025293359A1 18/09/2025
Solicitante:
CONTEMPORARY AMPEREX TECH HONG KONG LIMITED [CN]
Contemporary Amperex Technology (Hong Kong) Limited
Resumen de: US2025293359A1
A battery cell, a method and system for manufacturing the battery cell, a battery, and a power consuming device are provided. The battery cell comprises: an electrode assembly comprising a first tab, wherein the first tab is arranged around a central axis of the electrode assembly; a housing configured to accommodate the electrode assembly, wherein the housing comprises a barrel and a cover connected to the barrel, the barrel is arranged around a periphery of the electrode assembly, the cover is provided with an electrode lead-out hole, the central axis extends in a first direction and passes through the electrode lead-out hole, the first tab comprises a first annular portion, and a projection of the first annular portion in the first direction does not overlap with a projection of the electrode lead-out hole in the first direction; and an electrode terminal comprising a columnar portion.
BOPI
Sede Electrónica
