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677
resultados
Última actualización
13/09/2026 [07:11:00]
Resultados 650 a 675 de 677
Resumen de: WO2026181956A1
A method for manufacturing a spacer which is disposed facing a battery cell and has a pressure-molded body including a plurality of inorganic particles, the method including: a composition generation step (S1) for generating a composition in which the surfaces of the plurality of inorganic particles are coated with a fluid in which a binder is dissolved or dispersed by a solvent; a disposing step (S2) for disposing the composition in a molding mold; and a molding step (S3) for, after the disposing step (S2), molding a pressure-molded body, in which the inorganic particles are bound to each other by the binder, by applying a constant pressing force to the molding mold and vaporizing the solvent.
Resumen de: WO2026182407A1
The present invention relates to a bipolar secondary battery and a manufacturing method therefor, wherein the bipolar secondary battery exhibits excellent lifespan characteristics and low resistance while including a gel electrolyte to suppress electrolyte leakage. In the bipolar secondary battery, a plurality of bipolar electrodes are stacked, each having an anode active material layer and a cathode active material layer respectively formed on both sides of a metal current collector. A cathode active material layer and an anode active material layer of adjacent bipolar electrodes face each other with a separator arranged therebetween. The gel electrolyte is impregnated in at least one of the separator, the cathode active material layer, and the anode active material layer, and the gel electrolyte is formed in an excess volume greater than the total pore volume of the separator, the cathode active material layer, and the anode active material layer when each are in a state in which the gel electrolyte is not impregnated therein.
Resumen de: US20260260990A1
A battery pack assembly includes a battery module having: first and second cells, and a first spacer. The first cell includes a first sidewall and a second sidewall. The second cell includes a first sidewall and a second sidewall, the second cell arranged adjacent to the first cell and defining a gap between the second sidewall of the first cell and the first sidewall of the second cell. The first spacer is positioned between the first and second cells at the gap, the first spacer including a spacer body having a frame and a plurality of extension portions. The spacer inhibits swelling of the second sidewall of the first cell and the first sidewall of the second cell toward each other and redistribute expansion of the second sidewall of the first cell and the first sidewall of the second cell thereby facilitating flow of cooling liquid at the first gap.
Resumen de: WO2026178892A1
Provided in the embodiments of the present application are a battery cell, a battery device and an electric device. The battery cell comprises a casing and an electrode assembly arranged within the casing. The electrode assembly is of a wound structure. A positive electrode sheet comprises a winding start section, a winding middle section and a winding finish section which are sequentially arranged in a winding direction, wherein the end of the winding start section away from the winding middle section is a winding start end of the positive electrode sheet, and the end of the winding finish section away from the winding middle section is a winding finish end of the positive electrode sheet. In the winding start section, the difference between the width of a negative electrode active material layer and the width of a positive electrode active material layer is △W1; in the winding middle section, the difference between the width of the negative electrode active material layer and the width of the positive electrode active material layer is △W2; in the winding finish section, the difference between the width of the negative electrode active material layer and the width of the positive electrode active material layer is AW3, satisfying: △W1>△W2 and/or △W3>△W2. The technical solution of the present application can improve the reliability of the battery cell.
Resumen de: WO2026182510A1
The present invention provides a heat-resistant member comprising: at least one inorganic heat-resistant layer; at least one adhesive layer; and an organic heat-resistant film, wherein the inorganic heat-resistant layer and the adhesive layer are alternately laminated to form a laminate, and the organic heat-resistant film is positioned at the outermost part of the laminate.
Resumen de: WO2026182593A1
The present invention relates to a precursor for a cathode active material, the precursor comprising a nickel-based hydroxide containing 60 mol% or more of nickel relative to the total metal, wherein the ratio of the grain size of the (101) plane (unit: nm) to the amount (unit: mol%) of Ni relative to the total metal is 1.5-2.0 nm/mol%.
Resumen de: WO2026181478A1
A secondary battery according to the present invention comprises: an insulating film that is a porous body and that has a first main surface and a second main surface on the reverse side from the first main surface; a positive electrode current collector that is a porous body and that is provided on the first main surface of the insulating film; a positive electrode active material layer provided on the positive electrode current collector; a negative electrode current collector that is a porous body and that is provided on the second main surface of the insulating film; and a negative electrode active material layer provided on the negative electrode current collector. An electrode body formed by laminating the positive electrode active material layer, the positive electrode current collector, the insulating film, then negative electrode current collector, and the negative electrode active material layer is wound. The wound electrode body has a plurality of first connecting portions electrically connected to an external positive electrode terminal, and a plurality of second connecting portions electrically connected to an external negative electrode terminal. The plurality of first connecting portions and the plurality of second connecting portions are provided on the same side on an outer edge of the wound electrode body, in a direction along a rotation center axis, and are arranged being spaced apart from each other along the winding direction of the electrode body.
Resumen de: WO2026182426A1
The present invention provides an apparatus for manufacturing an electrode for a secondary battery, the apparatus comprising: a hopper for supplying a powder mixture of an active material, a conductor, and a binder; a pressing molding unit including a first pressing part, which continuously presses the powder mixture supplied from the hopper, thereby forming a sheet, a second pressing part, which discharges a sheeted mixture sheet from an end of the first pressing part, and a third pressing part, which is disposed between the first pressing part and the second pressing part; a first backup cylinder that presses the first pressing part toward the third pressing part; and a second backup cylinder that presses the second pressing part toward the third pressing part, wherein the first and second pressing parts are provided to be movable, and the third pressing part is fixed in position.
Resumen de: US20260261023A1
0000 A system for filling a battery cell with electrolyte includes an electrolyte filling chamber configured to enclose a battery cell including an electrolyte filling port. A first heater is configured to heat the electrolyte filling chamber to a predetermined temperature. A vacuum source is configured to control a vacuum in the electrolyte filling chamber. A vapor generator is configured to supply a vapor from at least one of a liquid electrolyte and a liquid electrolyte co-solvent in the electrolyte filling chamber for a predetermined period. An electrolyte hopper is configured to fill the battery cell with the liquid electrolyte after the predetermined period. The predetermined temperature is greater than 40º C. and vacuum is less than 1bar. The vapor generator is located inside or outside of the electrolyte filling chamber.
Resumen de: WO2026179804A1
The present application relates to the technical field of batteries, and to a battery cell, a battery module, and an electric device. The battery cell comprises a battery casing, a pole structure, and cell core structures. The pole structure comprises a connection structure and a pole sleeve. The pole sleeve is inserted into the battery casing and is provided with an accommodating cavity. The connection structure is connected to the pole sleeve and covers an opening of the accommodating cavity. Each cell core structure comprises a tab and a cell core body accommodated in the battery casing, and the accommodating cavity is located on one side of the cell core body. The tab passes through the connection structure and is located in the accommodating cavity. The end of the tab away from the cell core body is connected to the pole structure.
Resumen de: WO2026179418A1
A battery cell (10), a secondary battery (2), and an electrical apparatus. The battery cell (10) comprises a housing (11) and an electrode assembly (12) disposed within the housing (11), and a group margin q of the battery cell (10) satisfies the expression: 85%≤q≤98%. The electrode assembly (12) comprises a negative electrode sheet (122). The negative electrode sheet (122) comprises a negative electrode current collector and a negative electrode film layer disposed on a surface of at least one side of the negative electrode current collector. The negative electrode film layer comprises a negative electrode active material, and the negative electrode active material comprises a silicon-containing material. The battery cell comprises an electrolyte, and the kinematic viscosity η of the electrolyte satisfies the expression: 1 mm2/s≤η≤3 mm2/s. The battery cell (10) satisfying the above conditions has good cycling performance.
Resumen de: US20260260899A1
0000 Provided is a lithium secondary battery including a positive electrode, a negative electrode, a separator placed between the positive electrode and the negative electrode, and a non-aqueous electrolyte, wherein the positive electrode includes a positive electrode active material and a first additive, the non-aqueous electrolyte includes a lithium salt, an organic solvent, and a second additive, the first additive includes at least one of compounds represented by Formula 1-1 or Formula 1-2, and the second additive includes a cyclic sulfur oxide-based compound:
0000
wherein all the variables in Formula 1-1 and Formula 1-2 are as described herein.
Resumen de: US20260260945A1
0000 A non-aqueous electrolyte includes ethylene carbonate, propylene carbonate, propyl propionate, and ethyl propionate. Based on a total mass of the non-aqueous electrolyte, mass percentages of ethylene carbonate, propylene carbonate, propyl propionate, and ethyl propionate are A %, B %, C %, and D % respectively, where 5≤A≤15, 5≤B≤15, 30≤C≤50, 5≤D≤20, A≥B, and 2≤C/D≤3.5.
Resumen de: WO2026181514A1
A composition containing at least one compound (A) that is selected from the group consisting of compounds represented by general formula (1), compounds represented by general formula (2), and compounds represented by general formula (3), and a compound (B) that is represented by general formula (4), wherein the ratio (compound (A)/compound (B)) of the mass of compound (A) to the mass of compound (B) is 0.7-150.
Resumen de: WO2026182577A1
The present invention relates to a lithium secondary battery comprising: a positive electrode; a negative electrode; a separator provided between the positive electrode and the negative electrode; and an electrolyte, wherein the positive electrode comprises a lithium nickel-based active material, the negative electrode comprises a silicon-based active material, the electrolyte comprises a carbonate-based solvent, an amide-based solvent, and a lithium salt, the lithium salt comprises a lithium salt containing a fluorine-based anion and a sulfonylimide-based lithium salt, the amide-based solvent is contained in an amount of more than 10 vol % and 25 vol % or less on the basis of 100 vol % of the solvent contained in the electrolyte, and the molar ratio of the sulfonylimide-based lithium salt is more than 10 mol % and less than 50 mol % on the basis of 100 mol % of the lithium salt.
Resumen de: WO2026182527A1
A battery assembly according to one embodiment of the present invention comprises: a plurality of battery cells; a cell frame in which the battery cells are accommodated; and at least one bus bar member electrically connected to a terminal portion of the battery cell. A cooling material is in direct contact with the battery cells, the terminal portion and the bus bar member, and circulates inside the cell frame.
Resumen de: WO2026181861A1
This secondary battery comprises: an insulating film that is a porous body and has a first main surface and a second main surface on the reverse side from the first main surface; a positive electrode current collector that is a porous body and is provided on the first main surface of the insulating film; a positive electrode active material layer provided on the positive electrode current collector; a negative electrode current collector that is a porous body and is provided on the second main surface of the insulating film; and a negative electrode active material layer provided on the negative electrode current collector. At least one of the positive electrode current collector and the negative electrode current collector includes a first current collector protrusion protruding from a side surface of at least one of the positive electrode active material layer and the negative electrode active material layer. The insulating film includes an insulating film protrusion protruding from a side surface of at least one of the positive electrode active material layer and the negative electrode active material layer and laminated with the first current collector protrusion. The laminated insulating film protrusion and the first current collector protrusion are bent to electrically connect the first current collector protrusion and the external terminal.
Resumen de: WO2026178777A1
Disclosed in the present application are a battery cell, a battery device and an electric device. The battery cell comprises: a housing having a receiving cavity; an electrode assembly arranged in the receiving cavity; a first limiting member, which is arranged in the receiving cavity and located on one side of the electrode assembly in a first direction, and comprises a first body portion and a first protrusion that protrudes towards the electrode assembly relative to the first body portion; and a second limiting member, which is arranged in the receiving cavity and located on the side of the electrode assembly facing away from the first limiting member, and comprises a second body portion and a second protrusion that protrudes towards the electrode assembly relative to the second body portion, wherein the projection of the first protrusion in the first direction at least partially overlaps the projection of the second protrusion in the first direction.
Resumen de: WO2026182279A1
The present invention relates to novel chitosan polymer compounds and novel electrically conductive polymer compounds substituted with a novel electron-withdrawing group. More specifically, the present invention relates to: novel polymer compounds composed of mixtures of compositions selected from novel chitosan polymer compounds and novel electrically conductive polymer compounds, in which an electron-withdrawing group is introduced into a chitosan polymer or electrically conductive polymer, thereby improving the ionic conductivity and cation transport number of binders to which same are added and increasing the electrochemical stability of an alkali metal battery using these binders; and secondary battery electrode binders comprising these compounds.
Resumen de: WO2026181458A1
The present invention provides a non-aqueous electrolyte secondary battery capable of suppressing the occurrence of scratches and breakage of a core body due to an electrode tab in a charge/discharge cycle, in a configuration provided with a wound-type electrode body. The non-aqueous electrolyte secondary battery is provided with a wound-type electrode body in which a first electrode and a second electrode having different polarities from each other are wound with a separator interposed therebetween. The first electrode (for example, a positive electrode (11)) has a core body (for example, a positive electrode core body (31)) and a mixture layer (for example, a positive electrode mixture layer (30)) formed on the surface of the core body. A core body exposed part where the core body is exposed (for example, a positive electrode core body exposed part (31a)) is formed on the surface of the first electrode. An electrode tab (for example, a positive electrode tab (19)) is joined to the core body exposed part. A metal foil (42) is laminated so as to cover at least partly the portion of the electrode tab that is disposed in the core body exposed part. A protective tape (40) is bonded so as to cover the core body exposed part, at least the portion of the electrode tab that is disposed in the core body exposed part, and the metal foil (42).
Resumen de: WO2026179573A1
Embodiments of the present application relate to the technical field of energy storage, and provide a thermoelectrically isolated battery pack and an energy storage device. The battery pack comprises a housing and an electrical compartment shell, the electrical compartment shell being disposed outside an end plate of the housing in the length direction of the housing. An inner cavity of the housing is used for accommodating battery cells, and an inner cavity of the electrical compartment shell is used for accommodating electrical components. The separate-cavity design of the electrical components and the battery cells effectively avoids contact between a large amount of thermal runaway-affected medium ejected from the battery cells during thermal runaway and the electrical components, avoids electrical sparking of the electrical components, and further avoids the risk of combustion or explosion caused by the electrical sparking, thereby effectively improving the safety performance of the battery pack.
Resumen de: US20260261016A1
A pole, a cover assembly, and a cell are provided, which relates to the field of cell technologies. The pole includes a body having a first surface, and the first surface defines a tab welding groove; The tab welding groove includes at least one groove sidewall, the groove sidewall is configured to be in contact with the tab of the cell, and a plane where the groove sidewall is located is gradually inclined toward an axis of the pole in a direction away from the first surface.
Resumen de: US20260260946A1
A non-aqueous electrolyte includes ethylene carbonate, propylene carbonate, diethyl carbonate, and propyl propionate. Based on a total mass of the non-aqueous electrolyte, mass percentages of ethylene carbonate, propylene carbonate, diethyl carbonate, and propyl propionate are A %, B %, C %, and D % respectively, 10≤A≤20, 9≤B≤15, 10≤C≤20, 10≤D≤25, and 1≤(C+D)/(A+B)≤1.3.
Resumen de: WO2026182307A1
The present invention relates to a preparation method for a mixed solid electrolyte and a mixed solid electrolyte prepared by the preparation method, the preparation method comprising the steps of: a) preparing a mixed solid electrolyte by mixing and dispersing a sulfide-based solid electrolyte, an oxide-based solid electrolyte, and a liquid electrolyte; b) drying and calcining the mixed solid electrolyte; and c) molding the calcined mixed solid electrolyte to prepare a mixed solid electrolyte in the form of a sheet, wherein the mixed solid electrolyte exhibits ionic conductivity of 4.0 mS/cm or more under room temperature (25°C) conditions. The mixed solid electrolyte facilitates the formation of a contact interface between an electrode and an electrolyte, simultaneously ensures thermal stability at high temperatures, and can significantly improve ionic conductivity by additionally being combined with a liquid electrolyte.
Nº publicación: US20260260878A1 03/09/2026
Solicitante:
NINGDE AMPEREX TECH LIMITED [CN]
Ningde Amperex Technology Limited
Resumen de: US20260260878A1
0000 A secondary battery includes an electrolyte and a negative electrode plate, where a viscosity of the electrolyte is P MPa·s. A first material layer includes a first negative electrode active material, which includes no silicon element. A second material layer includes a second negative electrode active material and a polyurethane binder. Based on a mass of the second material layer, a mass percentage of the silicon element is W<1>%, and a mass percentage of the polyurethane binder is W<2>%. Along a thickness direction of the negative electrode plate, the negative electrode active material layer is provided with at least one groove, where a cross-sectional area of the groove is S μm<2>, and a depth of the groove is H μm. S and W<1 >satisfy: 1≤W<1>≤50, and S=K<1>+20W<1>. K<1 >satisfies: 400≤K<1>≤800. H, P, W<2>, and S satisfy: 1≤W<2>≤10, 2≤P≤8, and H=K<2>W<2>P/S. K<2 >satisfies: 800≤K<2>≤1200.
BOPI
Sede Electrónica
