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1468
resultados
Última actualización
02/04/2026 [07:26:00]
Resultados 900 a 925 de 1468
Resumen de: WO2026056160A1
Disclosed in the present application are a sodium ion battery positive electrode material and a preparation method therefor, and a sodium ion battery. The preparation method comprises the following steps: mixing a nickel manganese precursor with a sodium salt and a scandium source, and then sintering at a high temperature to obtain a sodium ion battery positive electrode material. The method of the present application uses doping of a nickel site by scandium (Sc), and special charge polarons can be introduced due to a change in crystal structure, which enhances the stability of a framework structure of a transition metal layer in a layered oxide, and improves the mechanical properties of the material, while also improving the electronic conductivity and ion diffusion properties of the material, and alleviating irreversible phase transition of the material. A battery assembled by using the prepared sodium ion battery positive electrode material has excellent rate performance and capacity retention.
Resumen de: WO2026056155A1
Provided are a semi-solid-state battery electrolyte precursor, a semi-solid-state battery electrolyte, and a semi-solid-state battery and a preparation method therefor. The electrolyte precursor comprises: a first polymer monomer, a second polymer monomer, and an initiator; the first polymer monomer is an acrylic monomer or an acrylate monomer; and the second polymer monomer is a fluorine-containing unsaturated monomer.
Resumen de: WO2026056691A1
The present application discloses a modified high-nickel ternary monocrystalline positive electrode material and a preparation method therefor, a lithium-ion battery, and an electric device. The modified high-nickel ternary monocrystalline positive electrode material comprises a high-nickel ternary monocrystalline positive electrode material matrix, the bulk phase of the matrix is doped with Co and Al, and the surface of the matrix is coated with a coating layer containing Co, Al, and Ni. From the coating layer to the bulk phase, the content of Co and the content of Al gradually decrease, and the content of Ni gradually increases.
Resumen de: WO2026056730A1
A battery cell insulating film, comprising an insulating film body formed by a bottom surface covering region, end surface covering regions, first side surface covering regions, and second side surface covering regions, wherein both sides of the bottom surface covering region are connected to the first side surface covering regions, both sides of each end surface covering region are connected to the second side surface covering regions, and the end surface covering regions are connected to both sides of the bottom surface covering region. The total area covered by the first side surface covering regions and the second side surface covering regions after folding is S1, and the overlapping area between the first side surface covering regions and the second side surface covering regions after folding is S, satisfying: 5 mm2≤S≤(0.6×S1) mm2. This ensures that the insulating film body provides sufficient overlapping area on the side surfaces of an electrode assembly, such that the side surfaces of the electrode assembly after being covered with the insulating film body have relatively good cushioning performance, thereby reducing particle shedding caused by vibration and lowering the risks of corroding a battery cell casing and causing damage to the internal insulating environment, improving the protective performance.
Resumen de: WO2026056688A1
A battery cell, a battery device, and an electric device. The battery cell 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 side of the negative electrode current collector. The negative electrode film layer comprises a pressing aid, and the pressing aid has a flake-like structure. The maximum flake diameter of the pressing aid in the direction perpendicular to the thickness direction is L1, and the thickness of the pressing aid is L2, wherein L1/L2 ≥ 2. The battery cell has improved cycle performance.
Resumen de: WO2026056685A1
The present application belongs to the technical field of batteries, and specifically relates to a sodium metal battery and a preparation method therefor, and an electrical apparatus. The sodium metal battery comprises a positive electrode sheet and a negative electrode sheet. The negative electrode sheet comprises a negative current collector, and a sodium metal layer located on at least one side surface of the negative current collector. A separator film is located between the positive electrode sheet and the negative electrode sheet. The separator film comprises a base film, and a first coating layer located on at least one side surface of the base film, and at least a part of the first coating layer faces the sodium metal layer. The first coating layer has a 20%-80% compression deformation in the sodium metal battery. The design method provided in the present application is beneficial to improving the safety of a battery.
Resumen de: WO2026058687A1
A solid electrolyte material according to the present disclosure contains: a halide solid electrolyte that contains Li, M, and X; an amorphous substance; and a binder that contains a liquid component and an inorganic substance. Here, M is at least one element that is selected from the group consisting of a trivalent metal element, a trivalent metalloid element, a tetravalent metal element, and a tetravalent metalloid element, and X is at least one element that is selected from the group consisting of F, Cl, Br, and I. The inorganic substance includes at least one substance that is selected from the group consisting of an oxide, a halide, and a halogenated oxide. A battery 1000 according to the present disclosure comprises a positive electrode 201, a negative electrode 203, and an electrolyte layer 202 that is disposed between the positive electrode 201 and the negative electrode 203, and at least one member that is selected from the group consisting of the positive electrode 201, the negative electrode 203, and the electrolyte layer 202 contains a solid electrolyte material 200 according to the present disclosure.
Resumen de: WO2026058836A1
The present invention provides a battery which is capable of achieving sufficiently high density of energy by increasing the battery voltage (or the output voltage). Provided is a battery which comprises a positive electrode 1, a negative electrode 2, an electrolyte solution 3, and a separator 4. The separator 4 is a microporous film. The electrolyte solution 3 is a nonaqueous electrolyte solution which is composed of a positive electrode electrolyte solution 31 that is in contact with the positive electrode 1 and a negative electrode electrolyte solution 32 that is in contact with the negative electrode 2, the positive electrode electrolyte solution 31 and the negative electrode electrolyte solution 32 being arranged so that the separator 4 is sandwiched therebetween. The positive electrode electrolyte solution 31 and the negative electrode electrolyte solution 32 each contain a metal salt of a metal that is selected from the group consisting of alkali metals and alkaline earth metals, and a solvent that dissolves the metal salt. The activity of ions involved in a charge/discharge reaction in the positive electrode electrolyte solution 31 is higher than the activity of ions involved in a charge/discharge reaction in the negative electrode electrolyte solution 32.
Resumen de: WO2026058533A1
Provided is a slurry (10) in which clumping of a powder (11) can be reduced. The slurry contains a powder of an oxide-based solid electrolyte and a dispersion medium (12). The powder has a lithium ion conductivity of 1×10-6 S/cm or higher, and the lithium ion concentration of the liquid excluding the powder is between 1 ppm and 420 ppm, inclusive. The slurry is used, for example, as an additive for an electrode of an energy storage device in which lithium ions move between electrodes via an electrolytic solution, as an additive for a protective layer that protects an electrode of an energy storage device, as an additive for an electrolyte of a quasi-solid-state battery in which a solid electrolyte and an electrolytic solution are combined, and as a coating agent for a separator of an energy storage device.
Resumen de: WO2026056076A1
Provided in the present application are a battery case and a battery system. The battery case comprises: a case body and a pressure relief valve; a first support member and a second support member, which are vertically spaced apart in the case body, wherein the first support member is spaced apart from a bottom plate of the case body to form a first cavity, the first support member is provided with first mounting recesses that are configured for the mounting of battery cells and are in communication with the first cavity, at least part of the pressure relief valve is arranged on the case body and is located in the first cavity, the second support member is provided with a second cavity, and the second support member is provided with second mounting recesses that are configured for the mounting of battery cells and are in communication with the second cavity; and a communication member, wherein a first end of the communication member is in communication with the first cavity, and a second end of the communication member is in communication with the second cavity.
Resumen de: WO2026056055A1
The present application relates to the technical field of batteries, and provides a battery cell, a battery device and an electric device. The battery cell comprises a casing and an electrode assembly. The electrode assembly is received in the casing; the electrode assembly is of a wound structure; the electrode assembly comprises a first electrode sheet; the first electrode sheet is wound along a winding direction; the first electrode sheet comprises a plurality of straight sections and a plurality of bent sections; in the winding direction, the straight sections and the bent sections are alternately arranged and connected; and the plurality of straight sections are stacked in a first direction. The first electrode sheet has a winding starting end; the plurality of straight sections include a first straight section and a second straight section; the first straight section and the second straight section are connected by means of one bent section; the first straight section has a winding starting end; and at least one of the first straight section and the second straight section is provided with a first tab. This structure can shorten current guide paths of the first straight section and the second straight section, so as to improve the lithium intercalation capability of the innermost ring of the first electrode sheet, thereby reducing lithium precipitation on the inner side of the electrode assembly.
Resumen de: WO2026056012A1
The present application provides a lithium metal negative electrode and a preparation method therefor, and a solid-state battery. The lithium metal negative electrode comprises: a lithium layer and porous metal layers bonded to the surfaces of both sides of the lithium layer, wherein the porous metal layers are metal layers provided with a plurality of through holes in a penetrating manner. The porous metal layers comprise a metal having an electrode potential higher than that of lithium; the porous metal layers are used to connect tabs; and the hole diameter of the through holes is greater than or equal to 100 μm.
Resumen de: WO2026056683A1
The present application provides a battery module and an electric power-assisted bicycle, the battery module being configured to be mounted in a battery accommodating cavity of the electric power-assisted bicycle, and the battery module comprising multiple battery cells, a tab plate, and a battery management circuit board; each battery cell is columnar, and the multiple battery cells are linearly arranged in a column in sequence along the length direction of the battery accommodating cavity, to form a linear battery pack; the tab plate is strip-shaped, the tab plate is arranged approximately parallel to the arrangement direction of the multiple battery cells, the tab plate is located on a side of the battery pack, and the tab plate is provided with multiple positive electrode connecting portions and multiple negative electrode connecting portions; there is one battery cell in the cross-section of the battery module, the positive electrode and the negative electrode of each battery cell are electrically connected to a positive electrode connecting portion and a negative electrode connecting portion of the tab plate, respectively, and the battery management circuit board collects parameters of the multiple battery cells by means of the tab plate. The described battery module and electric assisted bicycle can enable the battery module to adapt to an internal space of the frame of the electric assisted bicycle.
Resumen de: WO2026056666A1
A battery protection plate integrated with combustible gas regulation and control, a preparation method therefor, and a battery module. The battery protection plate integrated with combustible gas regulation and control comprises: a porous heat-insulation base material; a phase change hydrogel, which is adsorbed in the pore structure of the porous heat-insulation base material; an aerogenesis flame retardant layer, which is arranged on the surface of at least one side of the porous heat-insulation base material; and a packaging film, which is arranged on the outer side of the aerogenesis flame retardant layer and the porous heat-insulation base material, and is used for packaging the porous heat-insulation base material and and the aerogenesis flame retardant layer.
Resumen de: WO2026056742A1
The present application discloses a novel housing, comprising a side wall (131) and a housing bottom cover (13). The central region of the housing bottom cover (13) is an explosion-proof region (1321). The area of the explosion-proof region (1321) is not greater than 1/2 of the area of the housing bottom cover (13), and the thickness of the explosion-proof region (1321) is not greater than the thickness of the housing bottom cover (13). An explosion-proof notch (13211) is provided in the explosion-proof region (1321). After the explosion-proof region is provided in the central region of the bottom of the housing of the present application, when thermal runaway occurs in a battery, the explosion-proof region bursts by means of the explosion-proof notch, and blockage is not prone to occur, thereby improving the safety of the battery on the whole, and also reducing the processing and manufacturing costs of the housing.
Resumen de: WO2026058586A1
The sealed can body according to one embodiment of the present disclosure is provided with a body and a lid. The body is a single bent metal plate. The body comprises: a bottom surface which is continuous with one short side of the lid, the long sides of the bottom surface being along the lid in the vertical direction; two long wall surfaces which are continuous with the long sides of the lid, the long sides of the long wall surfaces being along the lid in the vertical direction; a short wall surface which faces the lid; and one top surface which is continuous with the other short side of the lid, the long sides of the top surface being along the lid in the vertical direction. The bottom surface and the two long wall surfaces are continuous with each other via a bent portion of the metal plate. The top surface and the two long wall surfaces are continuous with each other via a bent portion of the metal plate. A first welded portion extending from the lid body to the short wall surface is present inside the top surface. A second welded portion extending from the top surface to the bottom surface is present on the short wall surface. The top surface and the short wall surface are continuous with each other via a third welded portion extending from one of the long wall surfaces to the other long wall surface.
Resumen de: WO2026058445A1
The present invention provides a lithium secondary battery that has excellent stability and charge/discharge properties. The present invention relates to a lithium secondary battery including an electrode sheet comprising a current collector that has a resin layer and metal layers formed on both surfaces of the resin layer, and an active material layer that is formed on at least one surface of the current collector, wherein the current collector has creases, and the active material layer has a level difference at the surface of portions corresponding to the creases.
Resumen de: WO2026058322A1
This electrode center position identification method is for identifying, after rolling, the center position of an electrode mixture layer of a laminate in which a current collector foil, the electrode mixture layer, and a solid electrolyte layer are laminated in the stated order. At least three reference parts are provided in a region on a surface of the current collector foil where the electrode mixture layer is not formed. A control unit: measures, on the basis of imaged data by an imaging device, the positions of the reference parts and a relative position of the center point of the electrode mixture layer formed on the surface of the current collector foil with respect to the reference parts; after formation of the solid electrolyte layer on the surface, of the electrode mixture layer, opposite from the current collector foil and after the rolling, measures positional change amounts of the reference parts on the basis of imaged data by the imaging device; and identifies the position of the center point of the electrode mixture layer after the rolling by using the positional change amounts.
Resumen de: WO2026056078A1
The present application belongs to the technical field of batteries. Disclosed are a battery module and a vehicle. The battery module comprises: a battery body, a liquid cooling plate, and a plurality of connecting pipes. Since the end of a connecting elbow pipe away from a connecting pipe body is directly fixed onto a first connecting flange, a vertical short pipe arranged on the first connecting flange can be removed, eliminating the need to use a quick-connect fitting. This can significantly reduce the space occupied by the entire connecting pipes in the direction perpendicular to the liquid cooling plate, reduce the distance between the connecting pipes and the liquid cooling plate, and thereby effectively reduce the volume of a battery package.
Resumen de: US20260077683A1
An exemplary thermal management system includes, among other things, a heater loop, a battery loop, a radiator loop, and a power electronics loop operating within a glycol system. A first valve is in fluid communication with one or more of the heater loop, the battery loop, the radiator loop, and the power electronics loop. A second valve in fluid communication with one or more of the heater loop, the battery loop, the radiator loop, and the power electronics loop. The second valve is fluidly connected to the first valve to provide at least one operational condition where there is battery heating within the battery loop while a vehicle is off charge, and while also being able to independently heat a cabin.
Resumen de: US20260077680A1
A battery management apparatus, a battery pack, an electric vehicle and a battery management method are provided. The battery management apparatus according to the present disclosure includes a controller configured to obtain a plurality of cell state parameters indicating electric states of the plurality of battery cells; determine whether to perform a balancing process, which is a procedure of selectively discharging or charging each of the plurality of battery cells, to suppress a deviation in electric states among the plurality of battery cells; and perform the balancing process for at least one battery cell among the plurality of battery cells, based on the plurality of cell state parameters.
Resumen de: US20260076416A1
The embodiments of the present disclosure provides an electronic cigarette and an electronic cigarette stem comprising a battery box, a bottom cover and a charging connection module. The battery box forms a first accommodating cavity, and both ends of it are respectively provided with an air outlet and a first through hole. The bottom cover and the battery box form a second accommodating cavity. The charging connection module is in the second accommodating cavity; an output terminal is arranged in the first accommodating cavity through the first through hole; an input terminal is connected to an external power supply through an air inlet. The air inlet, the second accommodating cavity, the first through hole, the first accommodating cavity and the air outlet form an airflow channel connecting an atomizer. Using the air inlet for both air admission and charging can simplify structure, improve production efficiency and reduce production cost.
Resumen de: US20260077678A1
A method and system for protecting a battery power limit, and a storage medium are disclosed. The method for protecting a battery power limit is applied to a vehicle with a battery management system. The method includes: acquiring temperature data, a state of charge, and a cell voltage extreme value of a battery, periodically; calculating a current maximum available power according to the temperature data and the state of charge; determining a power limit coefficient according to the cell voltage extreme value, and a voltage limited power interval corresponding to the temperature data; and obtaining an actual available power that the battery management system allows the vehicle to use according to the maximum available power and the power limit coefficient. According to the method, different temperature ranges can be adapted according to logic.
Resumen de: WO2026056663A1
The present disclosure relates to the technical field of batteries, and provides a secondary battery. An adapter piece of the secondary battery comprises: a pole connecting portion, a tab connecting portion, and an auxiliary connecting portion; the pole connecting portion is configured to be connected to a pole; the tab connecting portion is configured to be connected to a tab; in a first direction, the pole connecting portion is connected to the tab connecting portion; in a second direction, the width of the tab connecting portion is greater than the width of the pole connecting portion; the first direction is not parallel to the second direction; in the second direction, the auxiliary connecting portion is arranged on one side of the pole connecting portion; the auxiliary connecting portion has one end connected to the pole connecting portion and the other end connected to the tab connecting portion; and the auxiliary connecting portion is configured to reduce the temperature rise of the adapter piece. The secondary battery uses the auxiliary connecting portion to reduce the temperature rise at the connection boundary between the pole connecting portion and the tab connecting portion of the adapter piece, thereby reducing the overall temperature of the adapter piece. In addition, the arrangement of the auxiliary connecting portion can also reduce the amount of material punched out from a sheet during manufacturing, thereby improving the material utilization rate.
Nº publicación: WO2026056604A1 19/03/2026
Solicitante:
EVE ENERGY STORAGE CO LTD [CN]
\u6B66\u6C49\u4EBF\u7EAC\u50A8\u80FD\u6709\u9650\u516C\u53F8
Resumen de: WO2026056604A1
A pressure regulation system (100) and method, a thermal runaway management system (10), and a battery pack. The pressure regulation system (100) comprises a gas collection line (101), a vent valve (102) and a balance valve (103), wherein the gas collection line (101) is arranged outside the battery pack, two ends of the vent valve (102) respectively communicate with one end of the gas collection line (101) and the interior of the battery pack, and two ends of the balance valve (103) respectively communicate with the interior of the battery pack and the external environment of the battery pack.
BOPI
Sede Electrónica
