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1121
resultados
Última actualización
22/04/2026 [16:11:00]
Resultados 25 a 50 de 1121
Resumen de: WO2026076760A1
The present application relates to the technical field of new energy, and particularly relates to a polyacrylic acid binder and a preparation method therefor, and a lithium-ion battery. The preparation method for a polyacrylic acid powder binder comprises the following steps: mixing a polymerizable monomer and an initiator, and performing a polymerization reaction thereon to prepare a polyacrylic acid copolymer; and in the presence of an alcohol solvent, performing a neutralization treatment on the polyacrylic acid copolymer at a temperature not exceeding 60°C, so as to obtain a polyacrylic acid powder binder.
Resumen de: US20260106327A1
A lithium secondary battery includes a positive electrode, a negative electrode, a separator disposed between the positive electrode and the negative electrode, and a nonaqueous electrolyte. At the negative electrode, lithium metal deposits during charging, and the lithium metal dissolves during discharging. The separator has an elongated shape having a length D1 in a first direction and a length D2 in a second direction perpendicular to the first direction, where D1
Resumen de: US20260106256A1
A method for obtaining a metal salt from a spent lithium-ion (Li-ion) battery may include contacting a leaching solvent to a portion of the spent lithium-ion battery to form a first dispersion. The first dispersion is heated to a temperature in a range from 50° C. to 90° C. by applying microwave radiation. The temperature of the first dispersion is maintained to be in the range from 50° C. to 90° C. for a period in a range from 10 seconds to 5 minutes by further applying microwave radiation to the heated first dispersion. The first dispersion is filtered to obtain a first filtrate. The first dispersion is then filtered to separate undissolved material from a first filtrate. The undissolved precipitate is dehydrated to obtain the black mass.
Resumen de: US20260106248A1
The present invention provides a system and method for determining when a battery, or one or more batteries within a battery pack, undergoes an undesired thermal event such as thermal runaway. A sensor pack is mounted in close proximity to, or in contact with, an external surface of the battery or batteries to be monitored and communicates battery information, including battery compartment information, to a battery package monitor outside the battery compartment. Cloud connectivity can be provided via a mobile application to a battery thermal management package.
Resumen de: WO2026077336A1
The present application relates to the technical field of battery apparatuses, and discloses a battery apparatus. The battery apparatus comprises a box body comprising a bottom plate and a surrounding frame surrounding the periphery of the bottom plate, the surrounding frame of the bottom plate enclosing to form a cavity. Both ends of at least one cross beam structure in a first direction are fixedly connected to a frame of the box body, dividing the box body into at least two accommodating cavities, and the accommodating cavities being used for accommodating battery packs. The cross beam structure comprises at least two cross beams stacked and fixed in sequence along a second direction. A lifting hole is provided on the surface, away from the bottom plate, of the cross beam away from the bottom plate in the second direction, and the lifting hole is used for lifting the box body. The first direction is a direction parallel to the bottom plate, and the second direction is a direction perpendicular to the bottom plate. According to the battery apparatus provided in the present application, a lifting hole is provided on only one cross beam located on one side, the lifting hole being used for mounting a lifting point. The number of perforations can be reduced on the remaining cross beams, thereby ensuring the integrity of the remaining cross beams, and ensuring the overall strength of the cross beam structure, thus improving the structural strength of the battery apparatus.
Resumen de: WO2026076882A1
A battery liquid leakage detection method, comprising: acquiring concentration information of a target gas in a box body (120) and time information for collecting the concentration information (310), wherein the target gas is a volatile gas of an electrolyte; and when the concentration of the target gas at a target moment is greater than or equal to a target concentration, determining that leakage has occurred in the electrolyte (320), wherein the target concentration is the sum of the concentration of the target gas before a target duration at the target moment and a preset concentration, and the target moment is any moment within a first preset duration. The detection method can accurately and effectively detect the leakage of an electrolyte in a battery. Further provided are a battery liquid leakage detection (4000), a battery and an energy storage system.
Resumen de: WO2026077171A1
The present invention relates to the technical field of new energy batteries. Disclosed is a battery pack, comprising: a box body, a heat exchange tube, a battery unit, and an adhesive layer. The box body comprises a bottom plate, and an upper surface of the bottom plate is provided with an accommodating recess. The heat exchange tube is provided in the accommodating recess, the depth of the accommodating recess being H1mm, and the height of the heat exchange tube being H2mm, where H1≥H2. The battery unit is arranged on the bottom plate and is located above the heat exchange tube. The adhesive layer is arranged between the heat exchange tube and the battery unit, at least part of the adhesive layer being arranged within the accommodating recess, and the battery unit, the heat exchange tube, and the bottom plate being connected by means of the adhesive layer. The present invention provides a battery pack, which is provided with a heat exchange tube to exchange heat for a battery unit, thereby ensuring the flatness of a joint between a box body and a bottom surface of a battery, and at the same time ensuring the heat exchange effect.
Resumen de: US20260106325A1
0000 A separator includes a base film and an organic coating disposed on at least one surface of the base film. In a 10 μm×5 μm region of the organic coating, based on a mass of the organic coating, a mass percentage of a carbon element in the organic coating is W1, a mass percentage of a fluorine element in the organic coating is W2, and 0.45≤W1/W2≤6. The separator further includes an inorganic coating, the inorganic coating is disposed between the base film and the organic coating, the inorganic coating has a thickness of d3, the base film has a maximum pore size of r1, and 0.01≤r1/d3≤0.21.
Resumen de: US20260106352A1
A battery cell according to an embodiment of the present invention comprises: an electrode assembly on which at least one positive electrode plate and at least one negative electrode plate are stacked on each other; a case for accommodating the electrode assembly therein; a plurality of electrode tabs extending from the positive electrode plate and the negative electrode plate; an electrode lead one end of which is joined with the electrode tabs and the other end of which is exposed to the outside of the case; and a current breaker which is arranged inside the electrode lead and breaks the flow of an overcurrent, wherein the length of the current breaker according to the extension direction of the electrode lead can be formed to be at most 1/10 of the length of the electrode lead.
Resumen de: US20260106328A1
Provided is a composition for an electrochemical device functional layer with which it is possible to form a functional layer that has excellent wet adhesiveness and that is capable of good inhibition of metal deposition on an electrode during charging and discharging and swelling of an electrochemical device. The composition for an electrochemical device functional layer contains a particulate polymer including a structural unit that includes a group having an aromatic ring where at least one hydrogen atom is substituted with a hydroxy group.
Resumen de: WO2026077196A1
The present application relates to a method for controlling the temperature of a battery pack of an electric vehicle and a control system thereof. The control method comprises the following steps: an external temperature control device acquires the state of a battery pack from a charging device, the state of the battery pack comprising a charging state; if the battery pack is in the charging state, controlling an inlet temperature of a coolant entering the battery pack from the external temperature control device to be a first target inlet temperature and controlling the flow rate of the coolant to be a first preset flow rate; after the coolant has been inputted into the battery pack for a first preset duration, acquiring a first outlet temperature of the coolant; and on the basis of the first outlet temperature of the coolant and a target outlet temperature threshold of the coolant, controlling the flow rate of the coolant and/or the inlet temperature of the coolant. According to the method for controlling the temperature of a battery pack of an electric vehicle provided in the present application, an external temperature control device is used to perform temperature control on a battery pack of an electric vehicle, and no additional battery pack cooling system needs to be added to the electric vehicle, thereby preventing the weight and costs of the electric vehicle from increasing.
Resumen de: WO2026077090A1
To overcome the problem that existing lithium-ion batteries have difficulty considering both high-temperature performance and low-temperature performance, a lithium-ion battery is provided. The lithium-ion battery comprises a positive electrode, a negative electrode, and a non-aqueous electrolyte. The negative electrode comprises a negative electrode material layer containing a negative electrode material. The non-aqueous electrolyte comprises a non-aqueous organic solvent, a lithium salt, and an additive, the additive comprising vinylene carbonate, lithium difluorophosphate, and ethylene sulfate. The lithium-ion battery satisfies the following conditions: 0.08≤D×A/X≤8, 0.25≤D≤0.9, 0.1≤X≤2.5, and 0.3≤A≤2. D is the D50/D90 ratio of the negative electrode material. X is the mass content ratio of vinylene carbonate to lithium difluorophosphate in the non-aqueous electrolyte. A is the sum of the mass fractions of vinylene carbonate, ethylene sulfate, and lithium difluorophosphate in the non-aqueous electrolyte, the unit being wt%. The lithium-ion battery exhibits better performance under both high-temperature conditions and low-temperature conditions.
Resumen de: WO2026077190A1
The present application relates to the technical field of new energy batteries, and discloses a battery apparatus and a battery pack. According to the battery apparatus, the pin order of an output terminal is consistent with the pin order of a port of a battery management assembly, which facilitates the electrical connection between the output terminal of the battery apparatus and the port of the battery management assembly, and enhances the structural strength of the output terminal, facilitating an insertion operation between the output terminal and the port of the battery management assembly. The battery apparatus of the present application comprises a main wiring harness, an output terminal, and an adapter circuit board. A plurality of wires are arranged within the main wiring harness. The output terminal is arranged at at least one end of the main wiring harness, and the output terminal is directly electrically connected to a battery management assembly. The adapter circuit board is arranged between the main wiring harness and the output terminal. A signal input port of the adapter circuit board is electrically connected to the main wiring harness. A signal output port is electrically connected to the output terminal. An output branch is arranged between the adapter circuit board and the output terminal. The ratio of the thickness of the adapter circuit board to the length of the output branch along the extension direction of the output branch ranges from 0.003 to 0.06.
Resumen de: AU2024388708A1
A battery pack (1000) and an electric device (2000). The battery pack (1000) comprises: a battery management system (10); a plurality of battery modules (20); a circuit board (30); and a connector assembly (40), wherein the plurality of circuit boards (30) are sequentially connected in series to form a circuit board string, and the circuit board string is connected to the battery management system (10) so as to transmit working condition data of battery cells (22) in the battery modules (20) to the battery management system (10).
Resumen de: US20260106306A1
0000 Provided is a battery module comprising: a plurality of sub-modules arranged along a first direction; one or more connecting members disposed between the plurality of sub-modules, wherein at least one of the plurality of sub-modules is disposed along the first direction; and a housing having an internal space in which the plurality of cell stacks are accommodated, wherein the plurality of cell stacks each include a plurality of battery cells stacked in a second direction perpendicular to the first direction.
Resumen de: WO2026076928A1
The present invention provides an integrated silicon-carbon composite negative electrode material and a preparation method therefor. The integrated silicon-carbon composite negative electrode material comprises a carbon-based material matrix, a silicon-carbon composite layer distributed on the surface of the matrix, and an amorphous carbon layer covering the surface of the silicon-carbon composite layer. In the present invention, first vapor deposition is performed, and halogen gas is used to perform heat treatment for conversion so as to form a porous carbon layer having high thickness uniformity, and then amorphous silicon is deposited into pores by means of second vapor deposition. The integrated material prepared by means of the method uses a silicon lattice of silicon carbide to generate pores, thereby solving the problems of non-uniformity and poor stability in the current porous carbon activation process. There is certain bonding at the interface between the porous carbon and graphite, which facilitates connection of a silicon-carbon negative electrode with the surface of the graphite during expansion without detachment.
Resumen de: WO2026077039A1
The present application relates to the technical field of batteries, and in particular to a battery cell and a battery pack. The battery cell comprises: a casing. A cover plate is welded and connected to the casing to form a weld portion between the casing and the cover plate, and the projected area of the weld portion on the cross section of the casing perpendicular to the depth direction of the casing is S1. A boss portion extending into the casing is formed on the cover plate, and the area enclosed by the outer periphery of the boss portion is S2. The tensile strength of the cover plate is U, (I). According to the present application, by limiting the relationship between S1, S2, and U to satisfy (I), the welding strength between the casing and the cover plate is ensured, and the weld portion is prevented from cracking, thereby ensuring the airtightness of the battery cell, ensuring the use safety of the battery cell, and improving the safety of the battery pack.
Resumen de: WO2026076966A1
The present application relates to the technical field of batteries. Disclosed are a battery module and a battery pack. The battery module comprises: battery cells provided with pressure relief valves; and wire harness boards, which form slit portions, the projection of each slit portion facing a first surface at least partially overlapping with each pressure relief valve. The dimensions of residual portions are defined as a; and in the direction of width of the slit portions, the width of the slit portions is defined as b , and the dimensions of the pressure relief valves are defined as c, wherein a, b and c satisfy: c>b, and 0.01≤b/a≤12. In the battery module provided in the present application, by means of defining the range of the ratio of the width b of the slit portions to the dimensions a of the residual portions, when the ratio is excessively large, it indicates that the slit portions are excessively wide and the residual portions are excessively short, making a pressure relief piece easily fly out; and when the ratio is excessively small, it indicates that the slit portions are excessively narrow and the residual portions are excessively long, thereby being unfavorable for the diffusion of a high-temperature media.
Resumen de: US20260106320A1
0000 A ceramic composite separator and a method of preparing the ceramic composite separator are provided. The ceramic composite separator includes a polymeric scaffold and a coating including a plurality of ceramic particles, wherein a portion of the plurality of ceramic particles is disposed in the polymeric scaffold. The method of preparing the ceramic composite separator includes providing a polymeric scaffold, forming a coating comprising a plurality of ceramic particles on the polymeric scaffold, and consolidating the coating on the polymeric scaffold to form the ceramic composite separator that includes the consolidated coating on the polymeric scaffold.
Resumen de: US20260106234A1
0000 One aspect of an invention is a power receiving apparatus, configured to be able to receive electric power from a plurality of battery units each including a processor configured to control a power feeding function, the power receiving apparatus comprising a plurality of connection portions capable of electrically connecting the plurality of battery units, wherein the plurality of connection portions are configured such that voltages supplied to the plurality of processors of the plurality of battery units have different values when the plurality of battery units are electrically connected to the connection portions
Resumen de: US20260106171A1
0000 This application discloses a positive current collector, a positive electrode plate, an electrochemical apparatus, a battery module, a battery pack, and a device. The positive current collector includes a support layer, having two opposite surfaces in a thickness direction of the support layer; and an aluminum-based conductive layer, disposed on at least one of the two surfaces of the support layer. A thickness D<1 >of the aluminum-based conductive layer is 300 nm≤D<1>≤2 μm; a density of the aluminum-based conductive layer is 2.5 g/cm<3 >to 2.8 g/cm<3>; and when a tensile strain of the positive current collector is 2.5%, a sheet resistance growth rate T of the aluminum-based conductive layer is T≤10%. The positive current collector provided in this application has a relatively small weight and higher electrical performance, so that the electrochemical apparatus provides a higher weight energy density and higher electrochemical performance.
Resumen de: US20260103555A1
0000 Glycidyl-containing polymers and polymer compositions comprising them are described, as well as their use in electrode materials and/or as coatings for battery components. Also described are electrode materials, electrodes, electrochemical cells and batteries comprising the polymers and their uses.
Resumen de: US20260106206A1
0000 A network of metal fibers includes a plurality of metal fibers fixed to one another; wherein at least some of the plurality of metal fibers have a length of 1.0 mm or more, a width of 100 μm or less and a thickness of 50 μm or less. A method includes producing a plurality of metal fibers by melt spinning; providing a loose network of metal fibers; and fixating the plurality of metal fibers to one another.
Resumen de: US20260104740A1
0000 A highly convenient electronic device used while being worn on a body is provided. The electronic device is an arm-worn electronic device including a display panel, a power storage device, a circuit, and a sealing structure. The display panel displays an image with power supplied from the power storage device. The circuit includes an antenna and charges the power storage device wirelessly. Inside the sealing structure, the display panel, the power storage device, and the circuit are provided. The sealing structure includes a portion that transmits visible light. The sealing structure can be worn on an arm or is connected to a structure body that can be worn on an arm.
Nº publicación: US20260106348A1 16/04/2026
Solicitante:
EVE POWER CO LTD [CN]
Resumen de: US20260106348A1
The present disclosure provides a cover plate assembly and a battery. The cover plate assembly is mounted on a shell with an accommodation cavity, and includes: a cover plate, provided with a first mounting hole in communication with the accommodation cavity; a collection component, located in the accommodation cavity and configured to acquire parameter information inside the shell; a lower connection part, of which a first end is located in the first mounting hole and a second end is communicatively connected with the collection component; and, an upper connection part, of which a first end is detachably communicatively connected with the first end of the lower connection part and a second end passes through the first mounting hole.
BOPI
Sede Electrónica
