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1058
resultados
Última actualización
22/11/2025 [07:55:00]
Resultados 875 a 900 de 1058
Resumen de: US2025349918A1
The present invention discloses a sensory battery cell including a plurality of battery cells arranged in a first battery network, wherein the first battery network is a series network or a parallel network or a combination thereof, and a sensing integrated circuit connected in parallel with each battery cell to sense performance parameters of the plurality of battery cells, wherein the sensing integrated circuit includes a function circuit able to take an action for the battery cell that reaches a set condition. The present invention further discloses a intelligent battery using the sensory battery cell, a power battery using the intelligent battery, a battery management system and related methods thereof.
Resumen de: US2025349899A1
A battery cell comprises an electrolyte. The electrolyte solution contains an electrolyte salt, wherein the electrolyte salt contains lithium salt and metal Me salt, the ionic radius of Me positive ions is greater than the ionic radius of lithium ions, and the weight content of the lithium ions in the electrolyte is denoted as w1, and the weight content of the Me positive ions in the electrolyte is denoted as w2, both of which are based on the total weight of the electrolyte. In a charge and discharge test of a battery cell, the total discharge capacity of the battery cell is denoted as Q1, and the discharge capacity of the battery cell with a discharge voltage of 3.6 V is denoted as Q2. When the remaining capacity of the battery cell is greater than 90%, 0.8≤(Q2/Q1)/w2/(w1+w2)≤8.5 is satisfied.
Resumen de: US2025349841A1
An embodiment provides a composite positive electrode active material including: a positive electrode active material; and a coating layer on a surface of the positive electrode active material, the coating layer including a compound represented by Chemical Formula 1. Chemical formula 1 is as described in the specification.
Resumen de: US2025349914A1
The present application provides a multifunctional mounting bracket, comprising a mounting plate and a busbar mounting member. The busbar mounting member is connected to one side of the mounting plate; the mounting plate is used for mounting an LECU device; the busbar mounting member is used for mounting a busbar. The multifunctional mounting bracket provided by the present application can be used for simultaneously mounting and fixing the LECU device and the busbar, thereby simplifying mounting processes, reducing an occupation space, and saving costs. The present application further provides a battery mounting module and a battery pack.
Resumen de: WO2025234618A1
Provided is a thermal barrier pad comprising: a porous heat-insulating absorber having a first main surface and a second main surface; a heat-absorbing solution composition absorbed in the heat-insulating absorber; a heat-conducting sheet covering at least one of the first main surface and the second main surface of the heat-insulating absorber; and a heat-dissipating pouch surrounding the heat-insulating absorber and the heat-conducting sheet and including a metal layer, wherein the heat-absorbing solution composition comprises: about 0.20 wt % to about 0.45 wt % of a surfactant; about 0.3 wt % to about 5.0 wt % of a thickener; and about 60 wt % to about 80 wt % of water.
Resumen de: WO2025234839A1
The present invention relates to a dry electrode, comprising a binder polymer having a complex viscosity of 1500 Pa·s or less at 180 °C and at 0.1 Hz. The dry electrode according to the present invention can provide sufficient discharge capacity while significantly reducing the amount of VOC generated during manufacturing. In addition, mechanical strength can be sufficiently secured without using a fiberization method for the binder polymer.
Resumen de: WO2025234529A1
The present invention relates to a solid electrolyte slurry and a method for producing same and, more particularly, to a method for producing same comprising: a first step of mixing a solid electrolyte, a solvent, and a first binder to perform a first kneading process on a slurry mixture adjusted to a first solid content; a second step of adjusting the slurry mixture on which the first kneading process has been performed to a second solid content, and performing a multi-stage kneading process on the slurry mixture; and a third step of adjusting the slurry mixture on which the multi-stage kneading process has been performed to a third solid content, and performing a mixing process on the slurry mixture. The first solid content is greater than the second solid content, the second solid content is greater than the third solid content, and either of the second step and the third step includes additionally adding a second binder.
Resumen de: WO2025234868A1
An anode and a lithium secondary battery comprising same are presented, the anode comprising: an anode current collector; and a protective layer disposed on the anode current collector and including a cross-linked polymer including a repeating unit derived from two or more types of multi-functional cross-linking agents, wherein the cross-linked polymer has a cross-linking density (g/n) of 300 or less.
Resumen de: WO2025233970A1
The present disclosure provides an electrode composite, comprising: i) an active material; ii) a cohesive binder; and iii) a fibrillating binder, wherein the cohesive binder is coated on the surface of the active material in a range of 40 to 50% of the total surface of the active material; and wherein the cohesive binder is a polyvinylidene fluoride (PVDF) copolymer, poly acrylic acid (PAA), polyvinylpyrrolidone (PVP), siloxane-based binders, or mixtures thereof. The present disclosure further provides a process of preparing the electrode using the electrode composite.
Resumen de: WO2025231959A1
An electrode sheet manufacturing method and a coating device. The electrode sheet manufacturing method comprises the following steps: coating a first active material on a surface to be coated of a current collector so as to form a first wide layer; coating a second active material on the surface to be coated so as to form a narrow layer; and coating a third active material on the surface to be coated so as to form a second wide layer, wherein the first wide layer, the narrow layer, the second wide layer, and the surface to be coated jointly define a tab welding area, the first wide layer, the narrow layer, and the second wide layer are sequentially connected in a first direction, the width of the narrow layer is less than that of the first wide layer, and the width of the narrow layer is less than that of the second wide layer. The method forms the tab welding area by means of coating, without the need to use a laser cleaning process to form the tab welding area, thereby facilitating reduction of the manufacturing cost of electrode sheets.
Resumen de: WO2025231951A1
The present application provides an electrolyte, and a preparation method therefor and a use of an electrolyte. By mass percentage, the electrolyte comprises 16.5%-21% lithium hexafluorophosphate, 0.5%-2% lithium difluoro(oxalato)borate, 0.1%-2% sodium hexafluorophosphate, and 1%-2% pyrrole ionic liquids, and the balance is a solvent. The use of the electrolyte in a lithium battery can improve the cycle performance and the safety performance of the lithium battery.
Resumen de: WO2025231919A1
Disclosed in the present invention are a molybdenum-based compound nanosphere-modified graphite carbon material, a preparation method and the use in positive electrodes of lithium-sulfur batteries. The molybdenum-based compound modified graphite carbon material is defined as MoX-GC, where GC is a highly graphitized carbon matrix, and MoX is one or any two of MoO3, MoN, MoS2 and Mo2C, the percentage of the mass of total metallic elements to the mass of all of elements being 0.1%-30%. The preparation method comprises: uniformly dispersing a commercial carbon-based material in an aqueous solution; preparing a molybdenum oxide/molybdenum sulfide modified carbon-based material; under a hydrothermal condition, self-assembling a molybdenum oxide/molybdenum sulfide on a carbon matrix; and, in an inert gas atmosphere, obtaining highly graphitized carbon-based materials modified by different molybdenum-based compounds. The present invention is low-cost, simple and easy to implement, and has a wide range of application. The dual functions of sulfur fixation and catalysis exhibited by different molybdenum-based compounds significantly enhance the reaction kinetics of lithium-sulfur batteries, and are expected to exhibit ultra-stable cycle performance at high loading capacities.
Resumen de: US2025349830A1
A negative electrode material includes a silicon-carbon particle, the silicon-carbon particle has a hollow structure, the hollow structure includes a cavity and a shell surrounding the cavity, the shell includes a silicon-carbon layer; a mass content of silicon in the silicon-carbon particle ω and a ratio of a radius of the cavity to a radius of the silicon-carbon particle a satisfyω≤a31.05×(1-a3).The negative electrode material of the present disclosure can effectively alleviate the expansion of silicon material during battery cycling, improve the cycling performance of the battery, and effectively enhance the conductivity of the negative electrode material.
Resumen de: US2025345841A1
The present disclosure relates to a crimping apparatus for a battery cell, and the technical object to be achieved is to provide a crimping apparatus for a battery cell capable of improving the formation quality of a battery cell. To this end, the present disclosure provides a crimping apparatus for a battery cell, which includes a lower jig disposed around a circumference of a battery can, a first upper jig which descends to come into contact with the lower jig above the battery can and presses and moves the lower jig toward the battery can, and a second upper jig which is disposed inside the first upper jig, descends along with the first upper jig, and presses an end portion of the battery can downward to bend the end portion toward a cap assembly.
Resumen de: US2025349863A1
Disclosed are composite substrates and rechargeable lithium batteries. The composite substrate includes a support layer, a first metal layer on a top surface of the support layer, a second metal layer on a bottom surface of the support layer, and at least one tab that is buried between the support layer and at least one of the first and second metal layers. The tab includes a buried portion and an exposed portion.
Resumen de: US2025349860A1
Provided are a positive electrode slurry for preparing a positive electrode for a lithium secondary battery,the positive electrode slurry including a positive electrode active material, a conductive material, a binder, overcharge inhibitor, oxalic acid, and a solvent,wherein the overcharge inhibitor is included in an amount of 1 part by weight to 2 parts by weight, based on 100 parts by weight of the total solid content of the positive electrode active material, the conductive material, and the binder of the positive electrode slurry,the oxalic acid is included in an amount of 0.1 part by weight to 0.7 parts by weight, based on 100 parts by weight of the total solid content of the positive electrode active material, the conductive material, and the binder of the positive electrode slurry, andthe positive electrode slurry has a viscosity of 4000 cp to 15000 cp at room temperature; a preparation method thereof; a positive electrode for a secondary battery; and a secondary battery.
Resumen de: US2025349849A1
A positive electrode active material, a preparation method thereof, a positive electrode plate, a secondary battery, a battery module, a battery pack, and an electric apparatus are provided. The positive electrode active material includes: a polyanion compound, where the polyanion compound has the following general formula: NaxRy(PO4)z(P2O7)k, where R includes at least one of Mg, Al, Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Zr, Nb, Mo, Sn, Hf, Ta, W, and Pb, 1≤x≤7, 1≤y≤4, 1≤z≤2, and 1≤k≤4; and a first carbon material and a second carbon material compounded with the polyanion compound, where a crystallinity of the first carbon material is higher than that of the second carbon material.
Resumen de: US2025349929A1
A liquid cooling structure and a battery pack are disclosed in the present disclosure. The liquid cooling structure includes: a support plate, configured to support cells; and a vertical plate, perpendicular to the support plate. The vertical plate includes a main body and a plurality of telescopic ribs provided within the main body, a liquid cooling channel configured to circulate a liquid coolant is formed in the main body, the plurality of the telescopic ribs are spaced apart in the liquid cooling channel, and each of the telescopic ribs is connected between two opposite side walls of the liquid cooling channel to separate the liquid cooling channel into a plurality of sub-channels.
Resumen de: US2025349840A1
Disclosed is a lithium all-solid-state battery and a method for manufacturing the same. The lithium all-solid-state battery includes a positive electrode, a negative electrode current collector, a solid electrolyte layer between the negative electrode current collector and the positive electrode, and a silicon-containing metal layer on a surface of the negative electrode current collector facing the solid electrolyte layer. The lithium metal is formed on the negative electrode current collector by movement of lithium metal ions from the positive electrode to the silicon-containing metal layer on the surface of the negative electrode current collector through charge, and a ratio (Ns/P) of a charge capacity of the silicon-containing metal layer (Ns) to a charge capacity of the positive electrode (P) is less than 0.3.
Resumen de: US2025349904A1
A solid-state battery cell assembly is provided with a base membrane between a positive electrode and a solid-state electrolyte layer and/or between a negative electrode and the solid-state electrolyte layer that are included therein. An electrolyte solution is adsorbed onto the base membrane. The base membrane included in the solid-state battery cell assembly can effectively reduce the direct contact of the contained electrolyte solution with the electrodes and the solid-state electrolyte layer, which can reduce the consumption of the electrolyte solution in the charge and discharge processes, and meanwhile, also can reduce the absorption of the electrolyte solution by the solid-state electrolyte layer.
Resumen de: US2025349913A1
Example battery management systems, methods, and computer program products for managing the passive charge balancing of a battery pack are provided. A first example battery management system includes a battery pack, a battery management integrated circuit, and a battery management controller. The battery management integrated circuit includes a discharge circuit for each battery cell, having a shared balancing resistor connected to an adjacent battery cell. The battery management controller electrically coupled to the battery management integrated circuit, and configured to identify a least charged battery cell; iteratively select a plurality of highest charged battery cells, wherein no two highest charged battery cells are adjacent, and wherein each highest charged battery cell of the plurality of highest charged battery cells is greater than the least charged battery cell plus an unbalance threshold; and enable the discharge enable switch associated with each highest charged battery cell.
Resumen de: EP4647294A1
A mobile apparatus, a charging control method, and a chip are provided, and relate to the field of electric vehicle (10) charging. The charging control method is applied to the mobile apparatus. The mobile apparatus is configured to connect to a charging pile (20) to form a charging system. The charging pile is configured to charge a cell (101) of the mobile apparatus. The method includes: detecting a temperature of the cell; and if the temperature of the cell is equal to a target temperature, disabling a heating function for the cell until charging ends, where a temperature change of the cell is positively correlated with internal resistance of the cell and a charging current provided by the charging pile. This solution can implement fast charging of the cell.
Resumen de: EP4648197A1
The present disclosure relates to a battery cell tray and a battery cell tray assembly, and the battery cell tray includes a lower plate where an accommodation portion accommodating one end of the battery cell is formed and an upper plate formed to be penetrated by the battery cell, wherein the lower plate and the upper plate may be coupled to each other in a sliding movable way between a first state where an opening of the accommodation portion is opened and a second state where an opening of the accommodation portion is at least partially closed.The battery cell tray and the battery cell tray assembly according to the present disclosure may accommodate, fix and move curved battery cells, and reduce the risk of damage to curved battery cells and fire during charging and discharging.
Resumen de: EP4647989A1
Provided are a reused secondary battery management method and a reused secondary battery management system capable of managing a reused secondary battery even when the reused secondary battery is a secondary battery produced by reusing cells that constitute a used secondary battery. In the secondary battery management method and the secondary battery management system, when the reused secondary battery is a secondary battery produced by reusing cells that constitute the used secondary battery, data for identifying a model of the used secondary battery before being reused is recorded in the reused secondary battery and/or an attached member attached to and used for the reused secondary battery during a period from the production of the reused secondary battery until the start of reuse of the reused secondary battery.
Nº publicación: EP4647704A1 12/11/2025
Solicitante:
EVE ENERGY CO LTD [CN]
Eve Energy Co., Ltd
Resumen de: EP4647704A1
The present application provides a cooling component and a battery pack. The cooling component include: a cooling bottom plate supporting bottoms of a battery cell; and a cooling side plate bent and connected to one side of the whole of the cooling bottom plate, and the cooling side plate abuts on and is thermally conductively connected to one side of the battery cell. The cooling side plate includes a flow channel part and a buffered part. The flow channel part is provided with one or more cooling flow channels. Each cooling flow channels is used to circulate the cooling medium. The buffered part is provided with a buffer cavity, and the buffer cavity extends along a length direction of the cooling side plate.
BOPI
Sede Electrónica
