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1408
resultados
Última actualización
17/12/2025 [07:14:00]
Resultados 175 a 200 de 1408
Resumen de: US2025379214A1
A method for manufacturing an electrode sheet is disclosed. The method may include producing first coated active material particles by mixing first active material particles with at least a binder, producing second coated active material particles by mixing second active material particles with at least a conduction aid; producing an electrode mixture by mixing the first coated active material particles with the second coated active material particles; and forming the electrode mixture into a sheet shape.
Resumen de: US2025379313A1
A box, a battery and an electrical apparatus. The box includes: a plurality of beams enclosing and forming a first accommodating space, the first accommodating space being configured to accommodate a battery high-voltage module; and a thermal management component arranged to intersect with the beams and configured to regulate the temperature of the battery high-voltage module; wherein in the thickness direction of the thermal management component, the thermal management component is located in the first accommodating space.
Resumen de: US2025379215A1
Examples include a positive electrode active material for a rechargeable lithium battery, a positive electrode including the positive electrode active material, and a rechargeable lithium battery including the positive electrode active material. A positive electrode active material includes a first particle having an olivine crystal structure and having a first average particle diameter, a second particle having an olivine crystal structure and having a second average particle diameter smaller than the first average particle diameter, and a third particle having an olivine crystal structure and having a third average particle diameter larger than the first average particle diameter.
Resumen de: US2025379289A1
A power storage module includes a plurality of power storage cells stacked together, and includes: a plurality of heat conducting members arranged in contact with the power storage cells so as to be able to conduct heat; a plurality of heat insulating members each thermally insulating two heat conducting members from each other; and a base member arranged in contact with the heat conducting members so as to be able to conduct heat. The power storage cell, the heat conducting member, the heat insulating member, the heat conducting member, and the power storage cell are stacked together in this order. The base member extends in a stacking direction in which the power storage cells, the heat conducting members, and the heat insulating members are stacked together, and is arranged in contact with at least the plurality of heat conducting members so as to be able to conduct heat.
Resumen de: US2025379340A1
The present document describes a low magnetic field (H-field) tab configuration for a cylindrical-winding battery. The battery design is a rolled and stacked battery, with two or more winding rolls of cathode and anode layers separated by insulation layers, the winding rolls also being separated by a distance with the distance, in some embodiments, filled with a dielectric material. A first tab is electrically connected to a first layer of the plurality of layers, the first layer having a first polarity. A second tab electrically connected to a second layer of the plurality of layers, the second layer having an opposite polarity to the first layer. The second tab is configured to at least partially overlap a portion of the first tab. The tab configuration causes the battery to produce a reduced H-field when compared with a battery having non-overlapping tabs.
Resumen de: WO2025251234A1
The present application discloses an energy storage module and an energy storage device. The energy storage module comprises battery cell modules, a cooling member, a first support, a covering member, and a refrigerant channel. The cooling member comprises a flow channel, the battery cell modules are connected to the cooling member, and the battery cell modules and the cooling member are arranged in a first direction. The first support supports the battery cell modules. The covering member and the cooling member are spaced apart from each other. At least part of the refrigerant channel is located between the cooling member and the covering member, and the refrigerant channel is communicated with the outside of the energy storage module. Heat dissipation is performed on the battery cell modules by means of the cooling member and air in the refrigerant channel.
Resumen de: WO2025251361A1
A solid-state electrolyte membrane and a preparation method therefor, and a lithium ion battery. The solid-state electrolyte membrane comprises a first membrane layer and a second membrane layer that are stacked, wherein the material of the first membrane layer comprises a first polymer and a lithium salt, the material of the second membrane layer comprises an inorganic ceramic filler, a second polymer, and cellulose, and the first polymer and the second polymer are each independently selected from one or more of PVDF and PVDF-HFP. The solid-state electrolyte membrane has high ionic conductivity.
Resumen de: WO2025251358A1
Provided are a halide solid-state electrolyte material and a preparation method therefor, a solid-state electrolyte membrane, and a lithium ion battery. The chemical formula of the halide solid-state electrolyte material is LixTayInzCl6, wherein y/x is from 0.04 to 1, z=(6-x-5y)/3, and 1>z>0.2. The halide solid-state electrolyte material has better ionic conductivity, can be prepared by a solution method, involves a simple preparation process and low preparation cost, and can meet the requirements of large-scale production.
Resumen de: WO2025251350A1
The present application belongs to the technical field of secondary batteries. Provided are a nickel-manganese-based sodium-ion battery positive electrode material and a preparation method therefor, and a positive electrode sheet and a sodium-ion battery. The positive electrode material for a nickel-manganese-based sodium-ion battery is represented by the general formula NacNiaMnbO2, wherein a+b=1.0, 0.4≤a≤0.6, 0.4≤b≤0.6, and 0.67≤c≤1.0. The positive electrode material for a nickel-manganese-based sodium-ion battery is made of secondary particles formed by stacking primary particles. The primary particles are sheet-shaped particles, and the secondary particles are spherical particles, which having a discharge specific capacity of ≥115 mAh·g-1. The sodium-ion battery prepared from the positive electrode material for a nickel-manganese-based sodium-ion battery provided in the present application has a good cycling life and energy density, which facilitates the broadening of the application field of sodium-ion batteries.
Resumen de: WO2025253911A1
This method for producing a sulfide-based solid electrolyte material comprises: a starting material preparation step (S01) for preparing an electrolyte starting material that contains an element constituting the sulfide-based solid electrolyte material; and a synthesis step (S02) for synthesizing the sulfide-based solid electrolyte material by heating the electrolyte starting material. In the starting material preparation step (S01), the ratio of P in the electrolyte starting material is set within the range of 1.01 to 1.07 times the stoichiometric amount ratio of the target composition.
Resumen de: WO2025254016A1
This cooling system for a secondary battery comprises: a liquid flow path for moving a liquid refrigerant downward in the vertical direction, the liquid flow path being formed by a plate-shaped member which has a pair of surfaces and onto the outer surface of which or into which the liquid refrigerant can move, and the secondary battery being in contact with one of the pair of surfaces; a gas flow path for moving a gaseous refrigerant upward in the vertical direction, the gas flow path being adjacent to the other of the pair of surfaces of the liquid flow path, and the refrigerant being capable of moving between the gas flow path and the liquid flow path via the other surface; a cooling unit that is positioned above the liquid flow path and the gas flow path in the vertical direction and that cools the gas refrigerant to be in liquid form; and a heating unit that is positioned below the liquid flow path and the gas flow path in the vertical direction and that heats the liquid refrigerant to be in gas form.
Resumen de: WO2025253964A1
A coated active material 100 according to the present disclosure comprises: composite particles 130 that include an active material 110 and a first coating layer 120 which covers at least part of the surface of the active material 110; and a second coating layer 140 that covers the surface of the composite particles 130 at a coverage ratio of 15.0-75.0%. The first coating layer 120 contains a first solid electrolyte. The second coating layer 140 contains a second solid electrolyte having a composition differing from that of the first solid electrolyte. The ratio of the average roundness of the coated active material 100 to the average roundness of the active material 110 is less than 1.30.
Resumen de: WO2025254321A1
The present invention provides: a molded and sintered body of a cathode active material in which a plurality of cathode active material particles are aggregated and maintain the shape of the molded and sintered body; and a secondary battery made from same. The molded and sintered body of a cathode active material is manufactured by sintering after feeding into a sintering furnace without using a sintering vessel, and thus has high productivity. In addition, the reactivity of the molded and sintered body is high due to the high conversion energy and large amount of contact with a fluid during sintering, and thus it is possible to produce a cathode active material having excellent physical properties.
Resumen de: US2025379452A1
Embodiments of this application are applicable to the field of charging technologies, and provide a charging method and an electronic device. A to-be-charged apparatus sends first information including remaining electric quantity information of the to-be-charged apparatus to a charging apparatus. The charging apparatus determines a target charging policy from a plurality of candidate charging policies based on the first information. The charging apparatus outputs electric energy to the to-be-charged apparatus according to the target charging policy. In this way, the charging apparatus may flexibly determine the target charging policy from the plurality of candidate charging policies according to the remaining electric quantity information of the to-be-charged apparatus, and then output the electric energy to the to-be-charged apparatus according to the target charging policy. To be specific, charging policies of the to-be-charged apparatus are richer, and charging flexibility of the to-be-charged apparatus is improved.
Resumen de: US2025379438A1
An electric busbar (100) is provided, which is formed as a hollow profile (101), through the cavity (104) of which a coolant flows. The busbar has an inlet connection and an outlet connection, where the inlet connection is formed in such a way as to permit a coolant to flow into the cavity. The outlet connection is formed in such a way as to permit the coolant to flow out of the cavity. Contact pieces (107) are connected integrally and electrically conductively to the ends (106) of the busbar or the hollow profile and close the cavity tightly. A charging system is provided having such a busbar.
Resumen de: US2025379465A1
A rapid charging control apparatus includes a measuring unit configured to measure a voltage of a battery, and a control unit configured to estimate a SOC of the battery based on the voltage of the battery, determine a charging C-RATE corresponding to the estimated SOC based on a charging profile preset to represent the corresponding relationship between SOC and charging C-RATE, and block charging of the battery for a predetermined time when the charging C-RATE corresponding to the estimated SOC changes.
Resumen de: US2025379459A1
A battery is electrically coupled to a bidirectional power converter (i) to output discharge current through a first electrical path between battery cells and the bidirectional power converter, and (ii) to receive charging current through the first electrical path from the bidirectional power converter. A battery management system is configured to monitor the battery cells, detect a fault condition of the battery cells, transmit a first control signal to the bidirectional power converter to control the bidirectional power converter to cease operating in response to detecting the fault condition of the one or more battery cells, and transmit a second control signal to a switching element to close the switching element to cause a short circuit between a positive side and a negative side of the battery to cause a first overcurrent protection device to open to prevent current from flowing into or out of the battery cells.
Resumen de: US2025379466A1
The charging and discharging operation method of a lithium-ion battery according to the present disclosure comprises measuring an overpotential for each discharge voltage while discharging the lithium-ion battery, determining a minimum discharge voltage for controlling charging and discharging based on a measurement result of the overpotential and controlling charging and discharging the lithium-ion battery according to the determined minimum discharge voltage.
Resumen de: US2025379304A1
A battery cell, a battery and an electric device. The battery cell comprises: a casing, which comprises a wall portion, the wall portion being provided with a first electrode lead-out member; an electrode component, which is accommodated in the casing, and comprises a body portion and a tab extending from the body portion; and a separator member, which is at least partially disposed between the first electrode lead-out member and the body portion, wherein the separator member comprises a separator plate, which is provided with a channel; the tab passes through the channel and is electrically connected to the first electrode lead-out member; the separator plate is provided with at least one through hole; and the through hole penetrates the separator plate in the direction of thickness of the separator plate.
Resumen de: US2025379338A1
This cylindrical battery comprises: an outer container which has the shape of a bottomed tube and accommodates an electrode body; a terminal cap; a plurality of cathode leads which extend out of the electrode body; and an upper current collector plate to which the plurality of cathode leads are connected. The upper current collector plate has a protruding portion which protrudes towards the terminal cap in the axial direction, and the terminal cap has a recessed portion which accommodates at least the tip of the protruding portion. Part of the protruding portion at the tip and part of the bottom surface of the recessed portion are connected by a connecting part. Between the protruding portion and the recessed portion, there is a first passage portion which is radially adjacent to the connecting part and a second passage portion which is linked to the reverse side of the first passage portion from the connecting part in the radial direction and has a maximum axial length that is smaller than the maximum axial length of the first passage portion.
Resumen de: US2025379300A1
A battery cell, a battery, and an electric apparatus. The battery cell includes: a casing, where the casing has a plurality of wall portions, the plurality of wall portions include a first wall, the first wall includes a main body portion and an edge portion connected to the main body portion, the edge portion is connected to an adjacent wall portion, and the wall thickness of the edge portion is greater than the wall thickness of the main body portion; an electrode assembly, where the electrode assembly is disposed in the casing; and an electrode terminal, where the electrode terminal is disposed on the wall portion and is electrically connected to the electrode assembly.
Resumen de: US2025379283A1
Manufacture and quality control of a cooling plate is simplified by providing peripheral walls on each side of a fluid cavity within a metallic base. The peripheral walls protrude over external surfaces of a fluid cavity and encircle open recesses. The external surface of the fluid cavity on one side of the base may be a metallic lid surrounded by a ledge inside the peripheral walls on the respective side and over the fluid cavity, joined to the base by friction stir welding. Plastic honeycomb cell receptacle structures within the open recesses on each side of the base may be snap fit to counterpart features on the peripheral walls. Defects arising from machining, e-coating, or powder coating metallic cell pockets on the cooling plate are avoided, as are defects related to gravity casting of the base for some embodiments.
Resumen de: WO2025251231A1
The present application discloses an energy storage device, comprising a first housing, a first separator, a battery module, and an electrical module. The first separator is connected to the first housing, and the first separator divides the first housing into a first chamber and a second chamber arranged in a first direction. The battery module is located in one of the first chamber and the second chamber. The electrical module is located in the other one of the first chamber and the second chamber, and the electrical module is electrically connected to the battery module. The electrical module and the battery module are located in different chambers, so that heat generated by the electrical module is separated from heat generated by the battery module, thereby facilitating improvement of heat dissipation of the battery module.
Resumen de: WO2025251224A1
The present invention relates to the technical field of lithium-ion batteries, and in particular to a copper foil and a preparation method therefor, a negative electrode comprising same, and a lithium-ion battery. The copper foil comprises ultra-fine grains and nanotwins, and has an average grain size of 0.2-0.4 μm and an area-weighted average grain size of 0.3-0.8 μm, wherein the proportion of the nanotwins in the copper foil is greater than 50%. The copper foil is prepared by means of a pulse electroplating technique, which can control the average grain size and the proportion of nanotwins in the copper foil, thereby making the copper foil have high tensile strength and a high elongation rate. Moreover, a specific electrolyte is used in the preparation method, enabling the tensile strength of the copper foil to reach 600-900 MPa and the elongation rate thereof to be greater than 5%. Applying the copper foil to a lithium-ion battery can reduce the volume expansion rate of a negative electrode material after charging and discharging cycles, prevent the copper foil from cracking due to repeated volume changes during the charging and discharging processes of the negative electrode material, prolong the cycle life of the battery and improve the safety of the battery.
Nº publicación: WO2025251183A1 11/12/2025
Solicitante:
CHALLENGO BEIKING TECH CO LTD [CN]
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Resumen de: WO2025251183A1
Provided in the present invention is an operating method of a lead-acid storage battery. The lead-acid storage battery comprises a housing, wherein an electrode plate wrapped in an AGM separator is mounted in the housing, the AGM separator has pores, and a sulfuric acid electrolyte is adsorbed in the pores of the AGM separator. The operating method of the lead-acid storage battery comprises an early stage of charging and discharging, an intermediate stage of charging and discharging and a later stage of charging and discharging, wherein in the early stage of charging and discharging, the sulfuric acid electrolyte is adsorbed in all the pores of the AGM separator; and in the intermediate stage of charging and discharging and the later stage of charging and discharging, the sulfuric acid electrolyte is not adsorbed in some of the pores of the AGM separator. The present invention further sets forth a lead-acid storage battery serving as a secondary battery. The lead-acid storage battery and the operating method thereof of the present invention can prolong the service life of the lead-acid storage battery.
BOPI
Sede Electrónica
