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1344
resultados
Última actualización
09/09/2025 [07:15:00]
Resultados 175 a 200 de 1344
Resumen de: US2025279417A1
A negative electrode sheet includes a negative electrode current collector as well as a capacity providing layer, a conductive bonding layer, and a fast ion conductor layer which are sequentially stacked on at least one side surface of the negative electrode current collector, where the capacity providing layer comprises a first negative electrode active material, a first binder, and a first conductive agent, the fast ion conductor layer comprises a carbon active material, a lithium superionic conductor, a second binder, and a second conductive agent, and the specific capacity of the first negative electrode active material is greater than that of the carbon active material.
Resumen de: US2025279465A1
Provided is a fixing jig capable of controlling a surface pressure for pressurizing a battery module assembly when fixing the battery module assembly to an electric vehicle, which includes: a pair of body units facing each other each having one end branched into a supporting portion and a pressurizing portion formed therebetween with an insertion groove into which a part of the electric vehicle is inserted; a pressurizing member rotatably installed inside the pressurizing portion to pressurize the battery module assembly by controlling the surface pressure while selectively and partially protruding outward from the pressurizing portion; and a control unit provided on one side of the body unit to control a rotating degree of the pressurizing member to control a protruding degree of the pressurizing member outward from the pressurizing portion. Thus, a noise or overheating of the battery module assembly is prevented.
Resumen de: US2025279466A1
A pressurizing mechanism, a pressurizing apparatus, a silo apparatus, and a battery production line are disclosed. The pressurizing mechanism includes a base and a pressurizing piece. The base is provided with a positioning key. The pressurizing piece is provided with a positioning groove. The positioning key is fitted to the positioning groove to position the pressurizing piece and the base. The positioning groove is provided with an insertion opening running through a bottom wall of the pressurizing piece, and the positioning key is inserted into the positioning groove through the insertion opening.
Resumen de: US2025279470A1
Disclosed herein is an electrolyte composition for an energy storage device, the electrolyte composition comprising cellulose nanocrystals; a liquid crystalline unit; an ionic liquid; a metal ion; and a solid protein; wherein the cellulose nanocrystals are conjugated with the liquid crystalline unit. Disclosed herein too is a zinc air battery comprising a positive electrode; a negative electrode; and an electrolyte disposed between the positive electrode and the negative electrode; wherein the electrolyte comprises cellulose nanocrystals; a liquid crystalline unit; an ionic liquid; a metal ion; and a solid protein; wherein the cellulose nanocrystals are conjugated with the liquid crystalline unit.
Resumen de: US2025279508A1
Systems and methods for space configurable battery structures for electrical assemblies incorporating ion exchange materials are described. One method to construct such a battery includes preparing a battery casing for a rechargeable battery. The preparing may further include placing one or more electrode materials into the casing. A monomer or a functionalized n-mer may be prepared for polymerization. The monomer or the functionalized n-mer may be polymerized to form an ion exchange material, which is then then cross-linked. The ion exchange material may be arranged to define an interpenetrating surface with at least a portion of at least one of the electrodes.
Resumen de: US2025279503A1
A battery module including: a battery cell stack in which a plurality of battery cells including electrode leads protruding in mutually opposite directions are stacked; a housing that houses the battery cell stack; a first heat sink and a second heat sink that are located under the bottom part of the housing, and first and second refrigerant flow paths formed between the first heat sink and the bottom part of the housing and between the second heat sink and the bottom part of the housing, respectively. The refrigerant flow path formed by the first heat sink and the refrigerant flow path formed by the second heat sink are separated from each other.
Resumen de: US2025279509A1
A manufacturing method for an electrical energy storage device disclosed herein includes: a preparing step of preparing a plate material that is made of metal and includes a first part forming a first surface of a case, and a pair of second parts extending from the first part and forming a pair of second surfaces of the case; and a wrapping step of disposing an electrode body on the first part of the plate material and bending the plate material so that a distance between the pair of second parts decreases, thereby wrapping the electrode body.
Resumen de: US2025279507A1
Disclosed is a thermal management structure of a battery cell, the thermal management structure including: a plurality of battery cells repeatedly arranged; a cell cooler connected to one side of each of the battery cells to enable heat transfer, and configured to cool the battery cell or raise the temperature of the battery when necessary; and a hybrid phase change material (PCM) part respectively disposed between the battery cells to absorb heat generated from the battery cells, and formed of different types of phase change materials (PCMs) respectively disposed in a plurality of divided regions divided in a shape of corresponding to a temperature gradient pattern of the battery cells.
Resumen de: US2025279461A1
A clamping jaw includes a first clamping piece and a second clamping piece. A direction in which the first clamping piece and the second clamping piece are arranged opposite each other is a first direction. A first drive component is configured to drive the first clamping piece to move along the first direction. A mounting base is arranged on the second clamping piece. The second clamping piece is able to move relative to the mounting base along the first direction. The mounting base is provided with a force applying portion that is spaced away from the second clamping piece. An elastic member is in contact with the second clamping piece and the force applying portion. A second drive component is configured to drive the mounting base to move along the first direction.
Resumen de: US2025279563A1
A liquid drainage mechanism includes: a valve body, the valve body being provided with an accommodating cavity, a liquid intake portion and an opening portion, the liquid intake portion and the opening portion being both in communication with the accommodating cavity; a cover assembly movably disposed on the opening portion; and an actuation assembly disposed in the accommodating cavity, the actuation assembly being configured to be actuated in response to a liquid entering the accommodating cavity through the liquid intake portion, so as to move the cover assembly to at least partially open the opening portion.
Resumen de: US2025279464A1
A battery module is disclosed. The battery module comprises: a frame; a plurality of lithium-ion cells provided in the frame; a compression plate attached to the frame and configured to apply a uniform compression pressure to the plurality of lithium-ion cells in the frame; and a stopper for holding the compression plate at a holding location for maintaining pressure.
Resumen de: US2025279463A1
An electrochemical cell for an electrical energy storage device, in particular intended for a motor vehicle, comprising a plurality of electrodes (3) and a compression device (4) adapted to the variations in volume of the plurality of electrodes (3), the compression device (4) comprising a casing (5) and an at least partially elastically deformable return element (6) allowing the constant exertion of a suitable compression on the plurality of electrodes (3) in order to keep the various elements thereof in contact with one another and thus allow more homogeneous operation of the cell.
Resumen de: US2025279462A1
A winding device and a winding method. The winding device includes a winding mechanism configured to wind an electrode plate to form an electrode assembly. The winding mechanism includes: a winding needle assembly, including an inner winding needle and an outer winding needle surrounding the inner winding needle; and a piezoelectric assembly, disposed between the outer winding needle and the inner winding needle and configured to control the outer winding needle to move relative to the inner winding needle to adjust a circumference of the outer winding needle.
Resumen de: US2025279562A1
An electrical energy storage device disclosed herein includes a square case having a pair of third surfaces, an electrode body including a positive electrode and a negative electrode, a positive electrode tab that is provided in the positive electrode, a negative electrode tab that is provided in the negative electrode, an electrolyte solution, and a liquid injection hole that is provided at the third surface of the case and at a position closer to the negative electrode tab than to the positive electrode tab.
Resumen de: US2025279491A1
Thermal management systems are provided for managing the thermal energy levels of a traction battery pack of an electrified vehicle. An exemplary thermal management system may include a gas separator and a reservoir. The gas separator may remove entrained gases (air, vent byproducts, etc.) from a coolant circulated through the system during both normal operating conditions and during battery thermal events that require increased coolant volume and flow rates for mitigating convective heat transfer. The removed gases can be expelled to atmosphere from within the reservoir. A pump for circulating the coolant through the system may be controlled based on a temperature of the coolant exiting the traction battery pack as part of a deaeration control strategy.
Resumen de: US2025279510A1
A battery cell is disclosed, including a housing, electrode terminals, and a protective member. The housing includes a wall portion and a fastener, where the fastener comprises a connecting portion and a pressing portion that together define a cavity. At least part of the electrode terminals is positioned within the cavity. The protective member includes a first protective portion covering the connecting portion and a second protective portion covering the pressing portion. The second protective portion extends beyond the pressing portion in a first direction. The structure reduces the likelihood of short circuits by shielding the pressing portion, thereby enhancing battery cell reliability.
Resumen de: US2025279433A1
The present invention relates to a non-fibrillizable binder for a dry-coated electrode, said binder consisting of a fluoropolymer having a melting point between 145° C. and 200° C. measured according to ASTM D3418 and a melt viscosity below 50 kP measured at 230° C. and at a shear rate of 100 s-1 measured according to ASTM D3835. More specifically. the invention relates to a dry-coated electrode for Li-ion battery. The invention also concerns the lithium-ion batteries manufactured by incorporating said electrode.
Resumen de: US2025279506A1
A battery pack includes a housing and battery modules in the housing. Each of the battery modules includes battery cells, a case accommodating the battery cells, a first fire prevention sheet on the case, and a first spacer on the case and configured to separate the first fire prevention sheet from an upper surface of the case.
Resumen de: US2025279435A1
Provided is an copper foil for lithium ion secondary batteries having two opposite sides, wherein the copper foil has a texture coefficient of crystal plane (220) “TC (220)” of ≥1.36 and a texture coefficient of crystal plane (311) “TC (311)” of ≥0.79. The present disclosure further provides a current collector for lithium ion secondary batteries and a lithium ion secondary battery including the same.
Resumen de: US2025276413A1
A welding positioning apparatus includes a carrier and a pressing module. The carrier includes a pressing region and placement regions, where the pressing region is formed between two placement regions spaced apart along a first direction. The pressing module includes a pressing block and a driving apparatus, where the driving apparatus is drivingly connected to the pressing block to drive the pressing block to move toward the pressing region along a second direction. A side of the pressing block facing the pressing region is provided with a pressing surface and an avoidance space. The pressing surface is configured to press a portion of a tab of an electrode assembly along the second direction. The avoidance space is located on a side of the pressing surface along the first direction and is open on a side facing the pressing region.
Resumen de: US2025276355A1
The present application discloses a die cutting method and apparatus for an electrode plate. The die cutting method for an electrode plate includes: providing an electrode-plate material. The die cutting unit performs die cutting on the electrode-plate material to produce individual electrode plates, each corresponding to the length of a single battery cell. During the die cutting process, a defect detection unit inspects the electrode-plate material for defects. A mark formed during die cutting indicates the boundary of each electrode plate. When a defect is detected, the system determines the defect's location relative to the current electrode plate being cut. Based on the position of the defect, the die cutting operation on the affected electrode plate is terminated, and die cutting is restarted on a new electrode plate. This approach allows for real-time defect management during continuous production, thereby enhancing yield and reliability of electrode plate manufacturing.
Resumen de: US2025276353A1
A system configured to roll a metal into a foil. The system includes work rollers spaced apart to accommodate the metal therebetween. The work rollers are configured to press against the metal to roll the metal into the foil. A cooling subsystem is spaced apart from the work rollers on a work line configured to feed the metal to the work rollers. The cooling subsystem is configured to cool the metal as the metal moves along the work line.
Resumen de: US2025276342A1
A coating deviation correction method includes: acquiring a first distance and a second distance, where the first distance is a distance from an edge of a coating region on a first surface of an electrode plate substrate to a reference edge, and the second distance is a distance from an edge of a coating region on a second surface of the electrode plate substrate to the reference edge; and determining a target deviation correction amount in a coating process based on the first distance, the second distance, and at least one preset deviation correction amount. The target deviation correction amount can be determined with high efficiency and accuracy by using the method.
Resumen de: WO2025179677A1
A composite copper foil and a production process therefor, relating to the technical field of copper foil manufacturing. The composite copper foil comprises a substrate (70) and copper plated layers (80) provided on two sides of the substrate. The production process comprises: first, placing a substrate (70) into an acid tank (11), such that the surface of the substrate (70) is slightly corroded and thus coarsened; then using a moving mechanism (20) to take out the substrate (70) and using a rinsing assembly (30) to rinse same; then the moving mechanism (20) feeding the substrate (70) into an alkaline tank (12) for oil removal and, by means of a negative-pressure fan, air-drying the substrate (70) that has undergone the oil removal; then attaching a reducing agent to the substrate (70) and, in a chemical plating mode, soaking the substrate (70) in a reaction tank (90) filled with an electrolyte, such that elemental copper in the electrolyte is attached to the substrate to form copper plated layers; then increasing the thickness of the copper plated layers in a horizontal plating mode; and finally, attaching a negative electrode material to the copper plated layers, so as to complete the manufacturing of the composite copper foil. The copper plated layers have uniform thickness, and the copper foil exhibit good corrosion resistance and thermal conductivity.
Nº publicación: WO2025179555A1 04/09/2025
Solicitante:
CONTEMPORARY AMPEREX TECH CO LIMITED [CN]
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Resumen de: WO2025179555A1
The present application provides a battery cell. The battery cell comprises a multi-layer structure formed of positive electrode sheets, negative electrode sheets and separators, wherein each separator is arranged between a positive electrode sheet and a negative electrode sheet. The battery cell can provide a charging rate greater than or equal to 2C. The multi-layer structure at least comprises a non-planar region, wherein in the non-planar region, the distance L1 between inner opposite surfaces of any adjacent positive and negative electrode sheets at any position has an appropriate value, such that the battery cell has an acceptable cycle life at the charging rate.
BOPI
Sede Electrónica
