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1601
resultados
Última actualización
20/03/2026 [07:15:00]
Resultados 1475 a 1500 de 1601
Resumen de: WO2026045946A1
The present application provides a battery module and an electrical device. The battery module comprises a housing, a first pressure relief portion, a battery cell assembly, and a cover. The housing is provided with an accommodation space having an opening. The housing comprises a first side wall and a second side wall arranged opposite to each other. The first side wall comprises a first exhaust channel. The first exhaust channel comprises a first inlet. The first pressure relief portion is configured to discharge gas from the first exhaust channel. At least a portion of the battery cell assembly is arranged in the accommodation space. The first inlet is configured such that a gas generated by the battery cell assembly flows into the first exhaust channel via the first inlet. The cover is connected to the housing. The battery module provided by the present application can reduce the possibility of explosion caused by a continuous increase in internal pressure of the battery module.
Resumen de: WO2026045225A1
A negative electrode sheet, a secondary battery, an electric device, and artificial graphite and a preparation method therefor. The negative electrode sheet comprises a negative electrode current collector and a negative electrode film layer located on at least one surface of the negative electrode current collector, wherein the negative electrode film layer comprises artificial graphite. La (110) of the artificial graphite is 130 nm-175 nm, and Lc (002) thereof is 30 nm-42 nm, wherein La (110) represents the crystallite size along an a axis in the (110) crystal plane of the artificial graphite, and Lc (002) represents the crystallite size along a c axis in the (002) crystal plane of the artificial graphite.
Resumen de: WO2026045268A1
Provided in the present disclosure are a positive electrode sheet, a solid-state battery cell, a battery device, an electric device, and a positive electrode active material and a preparation method therefor. The positive electrode sheet comprises a positive electrode active material and a sulfide solid-state electrolyte material, wherein the positive electrode active material comprises a substrate material and a coating material located on at least part of the surface of the substrate material, the substrate material comprising a transition metal oxide, and the coating material comprising a fluorine-containing lithium salt material. When applied to a solid-state battery cell, the positive electrode sheet can reduce the capacity fade rate of the solid-state battery cell at high temperatures and improve the high-temperature cycle performance of the solid-state battery cell.
Resumen de: WO2026045274A1
Disclosed in the present application are a battery cell and a preparation method therefor, a battery device, and an electric device. The battery cell comprises: a first electrolyte, which comprises a carbonate solvent; and a negative-electrode composite electrode sheet, which comprises a negative electrode sheet and a solid-state electrolyte film, wherein the solid-state electrolyte film is located on a surface of the negative-electrode composite electrode sheet, the negative-electrode composite electrode sheet is formed by subjecting the negative electrode sheet to a film-forming treatment in a second electrolyte so as to form the solid-state electrolyte film on the surface of the negative electrode sheet, and the second electrolyte comprises one or more of an ether solvent and a sulfone solvent.
Resumen de: WO2026045226A1
The present disclosure 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 formed on at least one surface of the negative electrode current collector. The negative electrode film layer comprises a first region and a second region. The first region is located between the second region and the negative electrode current collector. The first region comprises a first negative electrode active material. The second region comprises a second negative electrode active material. A powder OI value of the second negative electrode active material is less than a powder OI value of the first negative electrode active material. The first negative electrode active material comprises a first artificial graphite having an La(110) of 130-175 nm and an Lc(002) of 30-42 nm.
Resumen de: WO2026048536A1
A cylindrical battery (10) is provided with a wound electrode body (14), a bottomed cylindrical outer can (15), and a sealing body (30) for closing an opening of the outer can (15), and is configured so that the electrode body (14) can be discharged from the opening of the outer can (15). The sealing body (30) has a central portion (31), an outer peripheral portion (32), and a thin portion (33) positioned between the central portion (31) and the outer peripheral portion (32). The thin portion (33) includes an easily breakable portion (34) formed in an annular shape in the sealing body (30), and an outer thin portion (35) positioned further to the outer peripheral portion (32) side than the easily breakable portion (34).
Resumen de: WO2026048341A1
This non-aqueous electrolyte secondary battery includes an electrode body in which a band-shaped positive electrode (11) and a band-shaped negative electrode are wound along the length direction with a separator interposed therebetween, and the non-aqueous electrolyte secondary battery is characterized in that: the positive electrode (11) has a positive electrode core body (30) and a positive electrode mixture layer (31) formed on the positive electrode core body (30); a mixture layer non-formation part (32) is disposed at a winding start end part (11B) of the positive electrode (11), in which the positive electrode mixture layer (31) is not formed; and a protective layer (33) is formed on the surface of a part of the positive electrode core body (30) provided with the mixture layer non-formation part (32), the protective layer (33) being formed from a winding start end (11A) of the positive electrode (11) toward a winding end side, a part of the protective layer (33) being disposed between the positive electrode core body (30) and the positive electrode mixture layer (31), the protective layer (33) containing an insulating material as a main component and a conductive agent as a sub-component.
Resumen de: WO2026048340A1
This non-aqueous electrolyte secondary battery comprises: an electrode assembly (14) in which a positive electrode (11) and a negative electrode (12) are wound with a separator (13) therebetween; and a non-aqueous electrolyte. The separator (13) includes a first separator (50) disposed on one surface of the positive electrode (11) and a second separator (60) disposed on the other surface of the positive electrode (11). The first separator (50) has a first substrate layer (51) and a functional layer (52) disposed on a surface of the first substrate layer (51) facing the positive electrode (11). The functional layer (52) includes: a first heat-resistant layer (53) containing first inorganic particles; and resin particles (54) having an average particle size larger than the thickness of the first heat-resistant layer (53). The second separator (60) does not contain the resin particles (54).
Resumen de: WO2026048359A1
This method includes: a heating step for heating a part of a current collector sheet 12 having a coated region 13 coated with a mixture 11 containing an active material and an uncoated region 14 not coated with the mixture 11; and a compression step for compressing the current collector sheet 12 coated with the mixture 11 in a state in which the current collector sheet 12 is heated. A heating region 32 to be heated in the heating step includes at least a part of the uncoated region 13.
Resumen de: WO2026049572A1
A solid electrolyte-electrode assembly, as well as an all-solid-state battery including the assembly are described. For instance, a solid electrolyte-cathode assembly can be formed by co-rolling a plurality of cathode particles and a plurality of solid electrolyte particles, which results in the simultaneous production of the assembly and makes it possible to achieve improved interface resistance between the electrolyte membrane and electrode to improve battery performance. Also, the resulting electrolyte can be thin, which improves the energy density, while also maintaining excellent strength by using an electrode as a support.
Resumen de: WO2026049567A1
The present invention provides a positive electrode active material comprising at least one of a single particle consisting of one nodule and a quasi-single particle which is a composite of 30 or fewer nodules, wherein the degree of single crystallization defined by formula (A) is 2.7 or more. Formula (A): Degree of single crystallization = Formula I In formula (A), Ri is a radius of an i-th grain measured when a cross-section of an electrode is subjected to electron backscatter diffraction (EBSD) analysis after ion milling treatment of the electrode manufactured by applying the positive electrode active material, and is a value measured in units of ㎛, but the value substituted into formula (A) is a unitless number that does not include a unit, and n is a total number of grains measured through the electron backscatter diffraction (EBSD) analysis.
Resumen de: WO2026049568A1
The present invention relates to a cathode active material comprising: 80 mol% or more of nickel among all metals excluding lithium; and at least one type of doping elements, wherein the at least one type of doping elements has an average value of a first doping uniformity index as defined by equation 1, measured for individual doping elements, of 16% or less, and a particle strength of 121 MPa or more. Equation 1First doping uniformity index=NSD/Navg wherein, in equation 1, NSD is a standard deviation value of a molar ratio of the individual doping elements to Mn in the entire cathode active material, and Navg is an average value of a molar ratio of the individual doping elements to Mn in the entire cathode active material.
Resumen de: WO2026049151A1
The present invention relates to a transport system for transporting a cathode material to a calcination furnace in a cathode material calcination process. Proposed is a method in which a skid rail is constructed using rail pieces that are easy to assemble and disassemble, and do not form discontinuous points at coupling joints, and thus it is possible to prevent an overturning accident caused by collision of a large tray, in which a cathode active material is loaded, with the discontinuous points during a cathode material calcination process.
Resumen de: WO2026049173A1
The present invention relates to a method for producing a biomass-based eutectic solvent exhibiting an excellent extraction effect on metal components from waste batteries, a eutectic solvent produced thereby, and a method for recovering resources from waste batteries using same.
Resumen de: WO2026045984A1
Embodiments of the present application provide a heat exchange apparatus, a battery pack, and an electrical device, relating to the technical field of energy storage. The heat exchange apparatus comprises heat exchangers. The heat exchangers comprise a first heat exchanger and a second heat exchanger independent of each other. The first heat exchanger is at least disposed on one side of the second heat exchanger. The first heat exchanger is used for performing heat exchange with a first heat-generating region of a battery, and the second heat exchanger is used for performing heat exchange with a second heat-generating region of the battery. The heat generation amount of the first heat-generating region is greater than the heat generation amount of the second heat-generating region. A flow resistance structure is provided inside the first heat exchanger.
Resumen de: WO2026045976A1
Embodiments of the present application relate to the technical field of energy storage, and provide a heat exchange apparatus, a battery pack, and an electric device. The heat exchange apparatus comprises at least two heat exchange flow channels, manifold channels, and a bridging structure, wherein the at least two heat exchange flow channels are independent of each other; the manifold channels and at least one heat exchange flow channel are arranged at intervals; and the manifold channels and the heat exchange flow channel that are arranged at intervals are communicated with each other by means of the bridging structure. The embodiments of the present application can not only ensure the balance of the heat exchange capacity of the heat exchange apparatus, but also avoid the waste of resources.
Resumen de: WO2026045957A1
A battery energy distribution unit and a power battery comprising the battery energy distribution unit. The battery energy distribution unit comprises the following components: a box body (1); a plurality of electrical elements (7, 61, 62, 63, 64, 65) provided in the inner cavity of the box body; at least one circuitry integration module (3, 4), comprising an insulating base body (3-1, 40), and at least two electrical connectors integrated on the insulating base body, wherein each of the electrical connectors has a first connection end portion; and when the insulating base body is mounted on the box body, one of the first connection end portions is in contact with and electrically connected to a connection position of one of the electrical elements, so as to be configured as a signal acquisition line, a relay drive line, or a pre-charging loop line. By replacing the wire harness in the prior art with the circuitry integration module, the electrical connectors in the circuitry integration module can achieve communication between the signal acquisition line, the relay drive line, and the pre-charging loop line, thereby implementing a wire harness-free configuration inside the box body of the battery energy distribution unit; at the same time, installation of the entire module can be implemented, which is beneficial to fully automated production and improves cost-effectiveness.
Resumen de: WO2026045270A1
Provided in the present disclosure are a positive electrode sheet, a solid-state battery cell, a battery device, an electric device, and a positive electrode active material and a preparation method therefor. The positive electrode sheet comprises a positive electrode active material and a sulfide solid-state electrolyte material, wherein the positive electrode active material comprises a substrate material, a cobalt-rich material located on the surface of the substrate material and a coating material located on at least part of the surface of the cobalt-rich material; the substrate material comprises a transition metal oxide, the cobalt-rich material comprises a Co-containing transition metal oxide, and the molar content of Co in the cobalt-rich material is greater than that of Co in the substrate material; and the coating material comprises an electrolyte salt material. When applied to a solid-state battery cell, the positive electrode sheet can reduce the capacity fade rate of the solid-state battery cell at high temperatures and improve the high-temperature cycle performance of the solid-state battery cell.
Resumen de: WO2026045224A1
A secondary battery and an electric 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 located on at least one surface of the negative electrode current collector; the negative electrode film layer comprises a first area and a second area; the second area is located between the first area and the negative electrode current collector; the first area comprises a first negative electrode active material; the second area comprises a second negative electrode active material; the first negative electrode active material comprises a substrate and a carbon coating layer formed on at least partial surface of the substrate; thermogravimetric analysis testing is performed on the first negative electrode active material in an air atmosphere; an initial weight loss temperature T0 of the first negative electrode active material is 730°C-780°C; and the gram capacity of the second negative electrode active material is 357.0 mAh/g or above.
Resumen de: WO2026045216A1
Provided in the embodiments of the present disclosure are a heat exchange assembly, a battery device, an electric apparatus and an energy storage apparatus. The battery device comprises a case assembly, a battery cell assembly and a heat exchange assembly. The case assembly has an accommodating cavity therein. The battery cell assembly is arranged in the accommodating cavity. The heat exchange assembly is arranged in the accommodating cavity. The heat exchange assembly comprises at least two flexible members, which are arranged in a stacked manner; and a heat exchange flow channel is formed between the flexible members and configured for conduction of a heat exchange medium, which is configured for heat exchange with the battery cell assembly.
Resumen de: WO2026048347A1
Provided is a heat transfer suppression sheet that has exceptional heat insulation performance and is capable of absorbing deformation of a battery cell to suppress any decrease in battery performance and maintaining exceptional compression restoration force, thereby making it possible to prevent positional deviation and ensure exceptional heat insulation performance even when an abnormality occurs. A heat transfer suppression sheet (10) comprises: a heat-insulating material (11) that contains inorganic particles and at least one of organic fibers and inorganic fibers, the heat-insulating material (11) having a first main surface (21) and a second main surface (22) that constitute a pair; and an elastic body (12) that is layered in the thickness direction of the heat-insulating material (11). The second main surface (22) of the heat-insulating material (11) is disposed facing the elastic body (12). The maximum height Sz2 representing the surface roughness of the second main surface (22) is greater than the maximum height Sz1 representing the surface roughness of the first main surface (21).
Resumen de: WO2026048415A1
A non-aqueous electrolyte solution according to the present embodiment comprises lithium hexafluorophosphate, lithium bis(fluorosulfonyl)imide, and lithium nitrate. In the non-aqueous electrolyte according to the present embodiment, the molar ratio of the lithium nitrate to the molar ratio of the lithium hexafluorophosphate is 0.01-0.15, and the molar ratio of the lithium bis(fluorosulfonyl)imide to the molar ratio of the lithium hexafluorophosphate is 0.1-1.0.
Resumen de: WO2026045156A1
Provided in the present disclosure are a battery cover plate, a battery, a battery pack and an electrical device, belonging to the technical field of batteries. The battery cover plate comprises a cover plate body, a connecting structure being used for connecting the cover plate body and a tab of a battery. The current carrying area of the connecting structure is not less than the ratio of the current carrying capacity of the connecting structure to the current carrying coefficient of the connecting structure. The present disclosure enables the current carrying area corresponding to the cover plate body to be reasonably designed on the basis of current values of different batteries, thus helping to reduce the manufacturing cost of the cover plate body.
Resumen de: WO2026045150A1
Provided in the present application are a heat-absorbing material and a preparation method therefor, a heat-absorbing part, a battery assembly and an electric device. The heat-absorbing material comprises a carrier, an entrainer and a phase-change component, wherein the phase-change component and the entrainer form a negative azeotrope. The entrainer and the phase-change component in the heat-absorbing material of the present application form a negative azeotrope, such that the phase-change component undergoes phase change when the temperature is lower than the phase-change temperature of the phase-change component, thereby absorbing heat, realizing a heat-absorbing effect, improving the heat-absorbing response speed of the heat-absorbing material, and further improving the usage safety of the battery assembly.
Nº publicación: WO2026049134A1 05/03/2026
Solicitante:
SAMSUNG SDI CO LTD [KR]
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Resumen de: WO2026049134A1
The present invention relates to an all-solid-state battery and a method for manufacturing same and, more specifically, to an all-solid-state battery comprising: an electrode assembly in which at least one unit cell is stacked; and a pouch for packaging the electrode assembly. The unit cell includes a positive electrode, a negative electrode, and a solid electrolyte between the positive electrode and the negative electrode, and the pouch includes an insulating layer and a metal layer on the insulating layer, the insulating layer containing a polymer resin and a heat absorbing material dispersed in the polymer resin, wherein the endothermic initiation temperature of the heat absorbing material is 170°C to 300°C.
BOPI
Sede Electrónica
