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1482
resultados
Última actualización
11/09/2025 [07:18:00]
Resultados 375 a 400 de 1482
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: US2025279488A1
Provided are a battery management system and a battery pack including the same. The battery management system includes a plurality of slave managers provided to correspond to a plurality of battery modules, and configured to uniformly adjust cell voltages of a plurality of battery cells of respective battery modules, a master manager configured to detect a battery module having a contact defect therein among the battery modules as a defective module using a voltage deviation that is a difference between a maximum value and a minimum value of the cell voltages, and a data transmitter configured to electrically connect the master manager and the slave managers to enable data exchange.
Resumen de: US2025279428A1
A cathode for a lithium-ion battery including a layer of a conductive material arranged to collect the current flowing through the cathode, which layer is referred to as the substrate of the cathode, a layer of aligned carbon nanotubes (CNTs) in electrical contact with the substrate of the cathode and mainly extending perpendicular to the substrate of the cathode, solid sulfur which at least partially coats an outer wall of the CNTs and a solid layer of solid lithium sulfate (Li2SO4), which layer is referred to as the outer layer of Li2SO4, covering the layer of CNTs so as to form a stack of layers in which the layer of CNTs is located between the substrate of the cathode and the outer layer of Li2SO4 is disclosed.
Resumen de: US2025279429A1
A positive electrode material and a preparation method thereof, a positive electrode plate, a secondary battery, and an electrical device. The positive electrode material includes a conductive substrate material and an active material distributed on the conductive substrate material. The active material includes a nanoscale phosphate active material. The conductive substrate material includes doping element-modified graphene. Based on a total mass of the positive electrode material, a mass percent of the active material is 75% to 95%, and a mass percent of the conductive substrate material is 5% to 25%. The positive electrode material is prepared by using the doping element-modified graphene as a substrate material that carries nanoparticles of the phosphate active material.
Resumen de: US2025279426A1
This application provides a positive active material, a positive electrode plate, an electrochemical energy storage apparatus, and an apparatus. The positive active material is LixNiyCozMkMepOrAm, or LixNiyCozMkMepOrAm with a coating layer on its surface; and the positive active material is single crystal or quasi-single crystal particles, and a particle size Dn10 of the positive active material satisfies: 0.3 μm≤Dn10≤2 μm. In this application, particle morphology of the positive active material and an amount of micro powder in the positive active material are properly controlled, to effectively reduce side reactions between the positive active material and an electrolyte solution, decrease gas production of the electrochemical energy storage apparatus, and improve storage performance of the electrochemical energy storage apparatus without deteriorating an energy density, cycle performance, and rate performance of the electrochemical energy storage apparatus.
Resumen de: US2025279499A1
A battery module includes: a first battery cell; a first case to accommodate the first battery cell, and having a first through region to expose a portion of a surface of the first battery cell therethrough; a second case to accommodate at least a portion of the first case; and a first heat conducting member between the first battery cell and the second case.
Resumen de: US2025276587A1
A battery frame for holding one or more battery boxes includes an outer frame surrounding an interior space and formed from a plurality of structural members including first rails extending parallel to and spaced apart from one another and second rails between the first rails and perpendicularly thereto. The outer frame defines a top extending in a flat plane and a bottom. Each of the first rails includes a mounting flange extending outwardly away from the interior space for holding the battery frame to a vehicle structure. One or more battery boxes are disposed within the interior space of the outer frame and are removable from below the outer frame with the outer frame mounted within a vehicle. Support members and cross-beams provide structural rigidity, distribute or absorb crash loads, and hold one or more of the battery boxes within the battery frame.
Resumen de: US2025276613A1
A traction battery pack operating method includes charging a traction battery pack of an electrified vehicle. The charging includes charging a first subpack of battery cells together with a second subpack of battery cells. The method can discharge the first subpack separately from the second subpack. The method can include during the discharging, maintaining at least one switch in an open state to electrically isolate the first subpack from the second subpack.
Resumen de: US2025276572A1
A vehicle battery pack assembly includes a plurality of sub pack assemblies, each sub pack including a box frame. An internal frame assembly is disposed within the box frame. The box frame includes a front wall, a rear wall and a pair of side walls, one of the front wall and the rear wall includes a first plurality of mounting flanges vertically spaced there along and the pair of sidewalls each include a second plurality of mounting flanges vertically spaced there along. The internal frame assembly includes a plurality of first cold plate structures mounted directly to at least one of the first and second plurality of mounting flanges. A thermal hose assembly is connected to each of the plurality of first cold plate structures and a plurality of battery modules are supported on the plurality of first cold plate structures.
Resumen de: US2025276571A1
Provided is a cooling panel for a battery case. The cooling panel is formed in a panel shape and has a first surface and a second surface parallel to each other, the cooling panel has a cooling flow passage formed therein and configured to allow refrigerant to flow therethrough, and the cooling flow passage has, based on a central portion between the first surface and the second surface, a flow cross-sectional area on a side close to the first surface and a flow cross-sectional area on a side close to the second surface, wherein the two flow cross-sectional areas have different configurations.
Resumen de: US2025276611A1
An apparatus, including: a first circuit containing a first load, wherein a first battery is associated with the first circuit; a second circuit containing a second load, wherein the second load draws current from a second battery when the first load is not operating or is non-operational; a first switch, wherein the first switch is capable of disconnecting the first battery from the first circuit; a second switch, wherein the second switch is capable of connecting the first battery to the first circuit, wherein the first switch and the second switch are connected in series; at least one recharger, wherein the at least one recharger recharges the first battery and the second battery when the first load is operating; a third circuit containing a second battery; and a third load. The third load is connected between the first circuit and the third circuit.
Resumen de: US2025279425A1
A lithium ion battery having excellent charge performance and discharge performance even in a low-temperature environment is provided. A lithium ion battery includes a positive electrode active material containing cobalt, oxygen, magnesium, aluminum, and nickel. The median diameter of the positive electrode active material is greater than or equal to 1 μm and less than or equal to 12 μm. Magnesium and aluminum are included in a surface portion. The surface portion is a region within 50 nm in depth from the surface of the positive electrode active material. The positive electrode active material includes a region where magnesium is distributed closer to the surface side of the positive electrode active material than aluminum is.
Resumen de: US2025279743A1
A solar maintenance charging kit may include a solar panel assembly, an auxiliary battery system configured to receive power from the solar panel assembly, and an electronics assembly configured to adjust a maintenance voltage supplied to a mobile industrial machine from one of the solar panel assembly or the auxiliary battery system. The solar maintenance charging kit may be portable.
Resumen de: US2025279406A1
A method of manufacturing an electrode for an electrochemical element includes applying a first liquid composition onto an electrode composite layer having a rough structure by inkjetting in an amount of 0.34 to 10 mg/cm2 per application to form a first solid electrolyte layer comprising a solid electrolyte, to manufacture the electrode including: a substrate; the electrode composite layer disposed on the substrate, comprising an active material; and the first solid electrolyte layer, wherein the liquid composition comprises the solid electrolyte and a dispersion medium and has a viscosity of 4 to 20 mPa·s.
Resumen de: US2025279423A1
A electrode film includes an active material and a fluorine-containing binder. The fluorine-containing binder includes a polytetrafluoroethylene (PTFE) binder- and the active material includes a lithium transition metal oxide. The content of the fluorine-containing binder is 0.5-10 parts by weight based on 100 parts by weight of the total weight of the electrode film and the electrode film shows an elongation at break of 7% or more. An electrode, a secondary battery, and an energy storage system including the electrode film are also provided.
Resumen de: US2025279424A1
A positive electrode active material which inhibits a decrease in discharge capacity during charge and discharge cycles and a secondary battery which includes the positive electrode active material are provided. The secondary battery includes a positive electrode active material. The positive electrode active material contains lithium cobalt oxide. A total mass of magnesium oxide and tricobalt tetraoxide estimated by Rietveld analysis of a pattern obtained by powder X-ray diffraction of the positive electrode active material is less than or equal to 3% with respect to a mass of the lithium cobalt oxide. A volume resistivity of a powder of the positive electrode active material is higher than or equal to 1.0E+8 Ω·cm and lower than or equal to 1.0E+10 Ω·cm under a pressure of 64 MPa.
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.
Nº publicación: US2025276339A1 04/09/2025
Solicitante:
CONTEMPORARY AMPEREX TECH CO LIMITED [CN]
CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Resumen de: US2025276339A1
A coating apparatus includes: a coating die head having a discharge port; an adjustment assembly disposed on the coating die head; and a control assembly connected to the adjustment assembly. The control assembly is configured to detect an actual surface density of coating on an electrode plate and control the adjustment assembly to adjust a flow area of the discharge port based on a difference between the actual surface density and a target surface density.
BOPI
Sede Electrónica
