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891
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Updated on
16/08/2025 [07:10:00]
Results 600 to 625 of 891
Absstract of: US2025253445A1
A power storage device includes a pair of power storage cells arranged to face each other in a first direction, a cooling member that is in thermal contact with the pair of power storage cells in a second direction and cools the pair of power storage cells, and a heat insulating member arranged between the pair of power storage cells. The cooling member includes a pair of cell contact portions that respectively come into thermal contact with the pair of power storage cells in the second direction, and a coupling portion coupling the pair of cell contact portions to each other. A thermal resistance of the coupling portion is greater than a thermal resistance of each of the pair of cell contact portions.
Absstract of: US2025253345A1
A graphene oxide used as a raw material of a conductive additive for forming an active material layer with high electron conductivity with a small amount of a conductive additive is provided. A positive electrode for a nonaqueous secondary battery using the graphene oxide as a conductive additive is provided. The graphene oxide is used as a raw material of a conductive additive in a positive electrode for a nonaqueous secondary battery and, in the graphene oxide, the atomic ratio of oxygen to carbon is greater than or equal to 0.405.
Absstract of: US2025253342A1
An electrode plate includes a current collector and an active substance layer disposed on at least one surface of the current collector. The active substance layer includes an active substance and a polymer, and the active substance layer satisfies Formulas (1) to (3).λ=1-P1P2Formula(1)v=π×(d2)2×h×ρtFormula(2)v/λ>1.Formula(3)
Absstract of: US2025253337A1
The present invention pertains to a binder for Li-ion battery positive electrode, to a method of preparation of said electrode and to its use in a Li-ion battery. The invention also relates to the Li-ion batteries manufactured by incorporating said electrode.
Absstract of: US2025253338A1
The disclosure aims to provide a polytetrafluoroethylene for use in electrochemical device binders which enables formation of an electrode mixture sheet with high strength, and an electrochemical device binder, an electrode mixture, an electrode, and a secondary battery. Provided is a polytetrafluoroethylene for use in electrochemical device binders, the polytetrafluoroethylene having a number average molecular weight of 3.0×106 or more.
Absstract of: US2025253497A1
In a general aspect, an electrical device assembly (e.g., a battery module) can include a first electrical contact surface, a second electrical contact surface, and a ribbon wire extending along a longitudinal axis. The ribbon wire can include a first portion, a second portion and a third portion. The first portion of the ribbon wire can be coupled with the first electrical contact surface via a first wedge bond. The second portion of the ribbon wire can be coupled with the second electrical contact surface via a second wedge bond. The third portion of the ribbon wire can extend between the first portion and the second portion. The first portion can have a first width transverse to the longitudinal axis of the ribbon wire, and the third portion can have a second width transverse to the longitudinal axis, the first width being greater than the second width.
Absstract of: US2025253455A1
The present invention relates to a battery module. The battery module according to the present invention includes a housing having an internal accommodation space; and a plurality of battery cells disposed in the internal accommodation space, in which the housing includes a weld joint in which a first base material of a first aluminum-based alloy and a second base material of a second aluminum-based alloy are welded, and at least a partial region of a bead surface of the weld joint is located inward with respect to a reference plane, with an imaginary plane, which connects an outer surface of the first base material and an outer surface of the second base material in contact with the weld joint, as the reference plane.
Absstract of: US2025253378A1
A manufacturing arrangement to rechargeable battery cell formation and aging processes has rooms (2, 3, 4) for the formation process and for the aging process. The arrangement also has testing devices (8A, 8B, 8C, 8D, 8E, 8F). The rooms and test devices are situated on a floor (9). The arrangement further comprises a mezzanine floor (10) above the floor, at least one linear robot system (11) on the mezzanine floor, and conveyors (14) on the mezzanine floor (10). Each of said rooms (2, 3, 4) has interfaces (15) being in a functional connection to at least one of the conveyors (14) in order to transport the rechargeable battery cells. The mezzanine floor has also openings (16). On the floor (9), the arrangement further comprises elevator conveyors (17) being in functional connection with the opening (16) in order to transfer the rechargeable battery cells from the mezzanine floor to the floor.
Absstract of: US2025253438A1
The invention relates to a fluid equalization tank with a receiving chamber and a wall, wherein the wall divides the receiving chamber into a plurality of subchambers. The subchambers are fluidically connected via openings in the wall.
Absstract of: US2025253426A1
Various embodiments relate to several processes that may recover commodity chemicals from an alkaline metal-air battery. In various embodiments, while the cell is operating, various side products and waste streams may be collected and processed to regain use or additional value. Various embodiments also include processes to be performed after the cell has been disassembled, and each of its electrodes have been separated such as not to be an electrical hazard. The alkaline metal battery recycling processes described herein may provide multiple forms of commodity iron, high purity transition metal ores, fluoropolymer dispersions, various carbons, commodity chemicals, and catalyst dispersions.
Absstract of: US2025253394A1
Aspects of the disclosure include a bi-polar electrode design for secondary metal ion battery cells and methods of manufacturing the same. An exemplary vehicle includes an electric motor and a battery pack electrically coupled to the electric motor. The battery pack includes a battery cell that includes a bi-polar current collector, an anode coating layer formed on a first surface of the bi-polar current collector, and a cathode coating layer formed on a second surface of the bi-polar current collector. The battery cell further includes a roll-to-roll ionic channel blocker positioned along a first edge of the bi-polar current collector and a sheet-by-sheet ionic channel blocker positioned along a second edge and a third edge of the bi-polar current collector orthogonal to the first edge. The battery cell further includes an ionic conducting gel electrolyte formed over the anode coating layer and the cathode coating layer.
Absstract of: US2025253317A1
Disclosed is a secondary battery including an electrode assembly in which a positive electrode plate, a negative electrode plate, and a separator interposed between the positive electrode plate and the negative electrode plate are wound in one direction, a battery can in which the electrode assembly is accommodated, and a sealing body which seals an open end of the battery can. The positive electrode plate includes a positive electrode active material which includes a core having a single particle or quasi-single particle type and a coating layer formed on the core and including a conductive nano material.
Absstract of: US2025253444A1
A power storage device includes: a power storage module including a power storage stack; a case including an upper cover; a pressure relief valve; a breathable membrane; and a shielding plate. The upper cover has a raised portion that is provided at a position overlapping the power storage stack in a Z direction and is raised upward. Each of the pressure relief valve and the breathable membrane is provided to the raised portion. The shielding plate is disposed between the raised portion and the power storage stack.
Absstract of: WO2025161180A1
The present application discloses a module pressing device and a pressing method therefor. The module pressing device is provided with a pressing workstation for maintaining pressure on a battery module, the bottom of which is bonded to a heat dissipation plate. The module pressing device comprises a conveying line, a pressing apparatus, and a control apparatus. The conveying line passes through the pressing workstation and is used for conveying the battery module. The pressing apparatus is arranged corresponding to the pressing workstation, and comprises a jacking mechanism and a pressing mechanism opposite to each other in a first direction. The jacking mechanism is provided with a plurality of jacking portions movable in the first direction. The plurality of jacking portions are arranged in a second direction and are used to jack up the heat dissipation plate. The pressing mechanism is used to tightly press the battery module. The control apparatus is electrically connected to the jacking mechanism and the pressing mechanism, so as to control the jacking mechanism and the pressing mechanism to act. The heat dissipation plate is supported by means of the jacking mechanism, which cooperates with the pressing mechanism applying pressure to the battery module, so that thermally conductive adhesive coated between the heat dissipation plate and the battery module is evenly spread by means of pressing, thereby mitigating uneven coating of the thermally conductive adhesive and imp
Absstract of: WO2025161342A1
The present application relates to an assembly apparatus, an assembly method, and a battery processing device. The assembly apparatus comprises: a bearing platform, wherein the bearing platform is provided with a bearing surface and the bearing surface is provided with a grab position; a first positioning mechanism, movably arranged on the bearing platform and used for positioning a wiring harness board onto the grab position; a second positioning mechanism, arranged on one side of the bearing platform and configured to be able to detect the current position of a battery, and, on the basis of a deviation value between the current position and a target position, assemble the wire harness board located on the grab position to the battery; and a conveyance mechanism that comprises a conveyance part and a lifting assembly, the lifting assembly comprising a tray that is provided with a third positioning piece protruding upward from the surface of the side of the tray facing the wire harness board; wherein, the second positioning mechanism is further configured to be able to move the wire harness board from the conveying mechanism to the bearing surface. In the present application, positioning is carried out twice, thus increasing the precision and efficiency with which the wire harness board is assembled to the battery.
Absstract of: US2025253403A1
A sodium-ion battery is provided, comprising a positive electrode, a negative electrode and an electrolyte. The electrolyte comprises NaFSI, and the mass percentage C of the usage amount of NaFSI relative to the electrolyte satisfies: 1%≤C≤15%. The disclosure ensures that a negative electrode has enough capacity for exertion, such that Na+ deintercalated from a positive electrode can be completely intercalated into the negative electrode, and the plating of Na+ at the negative electrode is prevented, thereby effectively inhibiting the occurrence of a sodium plating phenomenon; moreover, NaFSI is used in an electrolyte and the content range thereof is controlled, such that while the conductivity of the electrolyte is improved, the film forming stability of positive and negative sides of a battery is good, and a current collector does not corrode, thereby effectively improving the rate capability and the cycling stability of the battery.
Absstract of: US2025253453A1
Disclosed is a secondary battery. The secondary battery includes an electrode assembly formed by winding a positive electrode sheet, a negative electrode sheet, and a separator interposed therebetween; a cylindrical can configured to accommodate the electrode assembly; and a cap assembly coupled to an open upper portion of the cylindrical can. The cap assembly includes a cap-up having an upwardly protruding structure, a safety vent disposed below the cap-up while surrounding an outer circumference of the cap-up, and a gasket for sealing between the cap assembly and the cylindrical can. The gasket includes a side surface surrounding outer circumferential surfaces of the cap-up and the safety vent and includes an upper portion bent inwardly to cover a peripheral upper side of the cap-up.
Absstract of: US2025253417A1
The present application relates to a charging and discharging balance control method, a system and an electronic device. The method includes: obtaining status information of a plurality of batteries connected in series during the charging or discharging process; and, according to the capacities and the state information of the plurality of batteries, adjusting the charging current and/or discharging current of the battery connected to at least one balancing branch, such that the voltage difference of the plurality of batteries is within a preset range. Therefore, the charging or discharging rates of batteries having different capacities may be balanced under the condition of current balancing adjustment, so as to ensure that the batteries may be simultaneously fully charged or completely discharged. Thus, the structural space of devices having foldable screen forms or irregularly-shaped battery compartments may be utilized to the maximum extent.
Absstract of: US2025253452A1
A battery assembly of the present disclosure includes: a plurality of battery cells disposed along a preset stacking direction; a cell cover covering a tab portion protruding from one side of at least one battery cell among the plurality of battery cells; an accommodating case accommodating the plurality of battery cells; and a side member extending from the accommodating case toward the plurality of battery cells, wherein at least a part of the cell cover is positioned on the upper portion of the side member and supported by the side member.
Absstract of: US2025253416A1
A rechargeable battery pack includes a holder with an accommodation space therein, a plurality of unit battery cells in the accommodation space, a connection tab electrically connecting the plurality of unit battery cells at an upper part of the holder, a busbar including a connector electrically connected to the connection tab and extending to the upper part of the holder, a BMS circuit electrically connected to the connector, and a support between the connector and the BMS circuit, and supporting the BMS circuit on an upper surface of the holder.
Absstract of: US2025253419A1
A control device of a storage battery system can determine a deterioration level of each of first storage battery modules and second storage battery modules. In addition, the control device can give a notification of at least one of exchange between a predetermined first storage battery module and a predetermined second storage battery module and change of storage positions of the predetermined first storage battery module and the predetermined second storage battery module, in accordance with the deterioration level of each of the first storage battery modules and the second storage battery modules.
Absstract of: US2025253441A1
Thermal barrier systems are provided for use within traction battery packs. An exemplary thermal barrier system may include one or more expandable gap fillers configured to transition from a compressed state to an uncompressed state when a temperature near the expandable gap filler exceeds a predefined temperature threshold. In the uncompressed state, the expandable gap filler reduces a free air volume of a void space of the traction battery pack, thereby managing or even preventing the transfer of thermal energy to nearby structures.
Absstract of: US2025253439A1
A temperature control arrangement for controlling the temperature of at least one component may include a temperature control circuit, a conveyor configured to drive a temperature control agent in the temperature control circuit, and a storage tank for intermediate storage of the temperature control agent. The storage tank may include a housing surrounding a housing interior, a fluid inlet arranged on the housing, a fluid outlet arranged on the housing, and at least one molded body composed of an open-pored foam and through which the temperature control agent is flowable. The fluid inlet may have an inlet opening via which the temperature control agent is introducible into the housing interior. The fluid outlet may have an outlet opening via which the temperature control agent is dischargeable after passing through the housing interior. The at least one molded body may be arranged in the housing interior.
Absstract of: US2025253360A1
A storage container includes a housing that encloses a housing interior, through which the temperature control agent can flow for intermediate storage. The housing includes a fluid inlet and outlet, each with respective openings for introducing and discharging the temperature control agent. A housing opening provides fluid communication between the housing interior and the external environment. A sealing element is positioned in the housing opening to seal it in a fluid-tight manner when arranged. A drying device, positioned on the sealing element, absorbs moisture from the temperature control agent within the housing interior. The drying device is arranged within the housing interior, while the sealing element remains positioned in the housing opening.
Nº publicación: US2025253427A1 07/08/2025
Applicant:
HITHIUM TECH HK LTD [HK]
Hithium Tech HK Limited
Absstract of: US2025253427A1
A battery cell recycling device includes a workbench, an end surface tape processing module, and a termination tape processing module. The workbench is configured to carry the battery cell. The end surface tape processing module includes a first cutter assembly and a second controller. The first driving member of the first cutter assembly is configured to drive the first cutter to move to cut end surface tapes. The second controller is configured to control start and stop of the first driving member. The termination tape processing module includes a first clamp assembly configured to clamp or release the battery cell located on the workbench, a separator lifting assembly configured to lift the large surface separator and a second cutter assembly. The second driving member of the second cutter assembly is configured to drive the second cutter to move in a first direction to cut off the large surface separator.
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