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1525
resultados
Última actualización
12/09/2025 [07:43:00]
Resultados 1400 a 1425 de 1525
Resumen de: WO2025177116A1
Provided is a novel positive electrode active material. A positive electrode active material according to the present invention includes a lithium cobalt oxide. The lithium cobalt oxide includes magnesium, aluminum, and nickel. A powder of the lithium cobalt oxide has a volume resistivity of at least 1.0×E+8 Ω⋅cm but no more than 5.0×E+8 Ω⋅cm at a pressure of 64 MPa. When the lithium cobalt oxide is analyzed by XPS, the magnesium concentration (Mg/Co) is at least 0.50 but no more than 0.90 relative to a cobalt concentration of 1, and the half width of the Mg 1s peak is at least 1.0 eV but no more than 2.6 eV.
Resumen de: WO2025177213A1
Electrochemical energy-storage cells that include cores having cathode-active materials of both nickel-oxide (NO) type and metal-based phosphate (MP) type, wherein the MP active material is provided to increase resistance to thermal runaway. In some embodiments: the NO and MP active materials are provided on differing cathodes; cathodes include a blend of the NO and MP active materials; a weight ratio of MP active material to NO active material varies within a cathode-active layer, in some cases with a weight percentage of MP active material increasing in a direction away from a current collector; cathodes include a cathode-active layer having multiple sublayers having differing uniform blends of NO and MP materials; cathodes include discrete NO and MP layers, with some embodiments having the NO layer located between the MP layer and a current collector; and/or cathodes include particles each composed of both NO and MP active materials. Methods are also disclosed.
Resumen de: WO2025176203A1
The present disclosure relates to the field of batteries. Provided are a gel electrolyte precursor fluid, a gel electrolyte solution, a lithium secondary battery and a preparation method therefor. The gel electrolyte precursor fluid comprises a reaction monomer, a cross-linking agent, an initiator and an electrolyte solution, wherein the reaction monomer comprises at least one of the compounds represented by formula 1, and the cross-linking agent comprises at least one of the compounds represented by formula 2-1 and formula 2-2. The gel electrolyte prepared from the gel electrolyte precursor fluid has relatively high oxidation resistance, and also has a relatively high ionic conductivity and a relatively high mechanical strength.
Resumen de: US2025273838A1
An electrical apparatus, a battery, a battery cell and an electrode plate assembly are disclosed. The electrode plate assembly includes an electrode plate and an insulating adhesive tape. The electrode plate includes an electrode plate body and a tab. The main surface of the electrode plate body has a first side edge and a second side edge that are spaced apart from each other along a predetermined spacing direction. The tab is integrally formed with the electrode plate body and protrudes from the first side edge in the spacing direction. The insulating adhesive tape is to be adhered and fixed to the main surface of the electrode plate body and to cover the first side edge. The above method can solve the problem of short circuit caused by burrs generated during a tab forming process piercing the separator.
Resumen de: US2025273785A1
The present disclosure relates to an end cover assembly, a battery cell, a battery pack and a device. The end cover assembly includes a cover assembly, a terminal assembly, a sealing piece and a first connected flow channel. The cover assembly is provided with an installation hole, and the installation hole penetrates through the cover assembly along an axial direction of the installation hole; the terminal assembly is installed in the installation hole; the sealing piece is configured to seal the installation hole; the first connected flow channel is arranged in at least one of the terminal assembly and the cover assembly, and the first connected flow channel is configured as follows: when the sealing of the sealing piece is invalid, the first connected flow channel enables the inside and the outside of the housing to be communicated through the installation hole.
Resumen de: US2025273972A1
A battery for marine applications. The battery includes a plurality of battery cells, wherein the battery cells are designed to accommodate draining charge down to zero volts. The battery includes a battery management system (BMS). The BMS comprises one or more connectors, wherein the connectors are normally-closed. The BMS resides within a housing of the battery between the battery cells and one of the battery terminals. The BMS measures the voltage of each battery cell and determines a voltage difference between a lowest-voltage cell and a highest-voltage cell. The BMS may also balance the charging and discharging of the battery cells to maintain the voltage difference within a predetermined maximum value. The battery also includes a sense module designed to detect voltage changes within the battery.
Resumen de: US2025269399A1
A coating deviation correction method includes acquiring a plurality of first distances and a plurality of second distances, where each of the plurality of first distances is a distance from an edge of a coating region on a first surface of an electrode plate substrate to a reference edge, each of the plurality of second distances is a distance from an edge of a coating region on a second surface of the electrode plate substrate to the reference edge, and the plurality of first distances and the plurality of second distances are obtained by sampling a plurality of times within one sampling period; and determining a target deviation correction amount in a coating process based on the plurality of first distances, the plurality of second distances, and at least one preset deviation correction amount.
Resumen de: US2025269216A1
Discussed is an energy storage system including a battery container having a battery, a slave controller configured to control an operation of the battery, and a rack battery management system (RBMS), and a watering container including a temperature device configured to break when the battery reaches a predetermined temperature, and a pump. The RBMS is configured to sense a temperature of the battery, and in response to the battery reaching the predetermined temperature, control the pump of the watering container to pump fluid to the battery.
Resumen de: US2025273770A1
A flexible multilayer battery pack insulator for an electric vehicle has a first layer of a coating material having opposite outer and inner sides, a second layer of compressible material having opposite outer and inner sides, and an intermediate fabric layer sandwiched between the inner side of the first layer and the inner side of the second layer, wherein the second layer has a relaxed thickness extending from the inner side of the second layer to the outer side of the second layer, wherein second layer can compress up to 50% of the relaxed thickness and recover to the relaxed thickness.
Resumen de: US2025273784A1
A battery cell including an electrode assembly, a case accommodating the electrode assembly, and a cap assembly sealing an opening of the case is provided. The cap assembly includes a terminal plate at least partially exposed to an external space of the cap assembly, a cap plate coupled to the case, a rivet connecting the terminal plate and the cap plate, and a gasket surrounding at least a portion of the rivet. The rivet includes a pillar portion at least partially surrounded by the cap plate, a protrusion portion extending from an outer peripheral surface of the pillar portion, and a first flange located between the terminal plate and the gasket. The gasket includes a first sealing region at least partially located between the protrusion portion and the cap plate, and a second sealing region located between the first flange and the cap plate.
Resumen de: US2025273727A1
The present disclosure provides a method for producing a battery wherein an insulating member can be easily disposed on the edge of a laminate film. The method for producing a battery 10 according to the disclosure comprises the following steps: (a) preparing an electrode stack 110 housed in a laminate film 120, (b) at least partially joining together the laminate film at the perimeter edges of the electrode stack to form a perimeter joint 120a, and (c) disposing an insulating member 130 so as to cover an edge face 120b of the laminate film and at least part of the main side 120c of the laminate film adjacent to the edge face.
Resumen de: US2025273772A1
An electrochemical cell may include a vessel, a first module, a second module, and a gas diffusion electrode (GDE). The vessel has a thickness dimension. The first module includes a first anode sandwiched between two first oxygen evolution electrodes along the thickness dimension of the vessel. The second module includes a second anode sandwiched between two second oxygen evolution electrodes along the thickness dimension of the vessel. A gas diffusion electrode (GDE) is disposed between the first module and the second module in the vessel along the thickness dimension of the vessel.
Resumen de: US2025273723A1
A material feeding apparatus includes a frame, a material feeding tray, and a fool-proof mechanism. The frame includes a base; the material feeding tray is arranged on the base and is movable along a horizontal first direction with respect to the base, the material feeding tray includes a plurality of material feeding positions, and specifications of workpieces carried by at least two of the material feeding positions are different; and the fool-proof mechanism is arranged correspondingly to at least one material feeding position on the material feeding tray and is configured to separately limit the specifications of the workpieces carried by the material feeding positions.
Resumen de: US2025273658A1
A positive electrode active material, a positive electrode, and a rechargeable lithium battery including the positive electrode are disclosed. The positive electrode active material may include a first positive electrode active material including a core particle in a form of secondary particles including a layered lithium nickel-manganese-based composite oxide and provided by agglomerating a plurality of primary particles and a second positive electrode active material including a core particle including a layered lithium nickel-manganese-based composite oxide and in a form of single particles. The first positive electrode active material and the second positive electrode active material may each independently further include an aluminum coating layer on the surface of the core particle, and an average particle diameter (D50) of the second positive electrode active material may be smaller than that of the first positive electrode active material.
Resumen de: US2025273659A1
A positive electrode active material for rechargeable lithium batteries includes core particles including a layered lithium nickel-manganese-based composite oxide and being in a form of secondary particles, wherein the secondary particles are each an agglomeration of a plurality of primary particles; an aluminum coating layer on a surface of the core particles; and a grain boundary coating portion being located on the surface of the primary particles and including cobalt. The positive electrode active material may realize characteristics of high density, high capacity, and long cycle-life for the rechargeable lithium batteries including the positive electrode active material, and reduce an amount of high-temperature storage gas generated.
Resumen de: US2025273664A1
A negative electrode plate includes a negative electrode current collector and a negative electrode active material layer disposed on at least one side surface of the negative electrode current collector, where the negative electrode active material layer includes a silicon-carbon composite material and a lanthanide compound.
Resumen de: US2025273764A1
Reduce thermal effects on adjacent battery cells. A first battery cell, a second battery cell adjacent to the first battery cell, and a heat pipe disposed between the first battery cell and the second battery cell and disposed in contact with at least the first battery cell, comprising.
Resumen de: US2025273821A1
Electrochemical devices are disclosed for various applications such as secondary batteries. In an embodiment, an electrochemical device including a positive electrode, a negative electrode, a separator, and an electrolyte. Specifically, the separator includes a porous polymer membrane including one or more of hydrophilic inorganic particles or a hydrophilic polymer that are blended in a porous substrate, and the electrolyte includes a nitrile-based compound. The electrochemical device exhibits high ionic conductivity by including the porous separator having wettability to the electrolyte.
Resumen de: WO2025176157A1
The present application provides an explosion-proof battery valve and a battery. The explosion-proof battery valve comprises a protective shell (1), a piercing pin (2) and a diaphragm (3). The protective shell (1) comprises a shell body (11) and a protective cover (12) which are integrally connected by means of injection molding, wherein the shell body (11) is in the shape of a cylinder with two open ends, and radial exhaust holes (111) are formed in the peripheral wall of the shell body (11); the protective cover (12) is connected to one end opening of the shell body (11) in a plugged manner; and the other end opening of the shell body (11) is a pressure relief hole (113), and the pressure relief hole (113) communicates the radial exhaust holes (111) with the interior of a battery. The piercing pin (2) is arranged on the top wall of the protective cover (12), and is located in an inner cavity of the shell body (11). The diaphragm (3) is arranged in the pressure relief hole (113) in a covering manner, and gas discharged from the interior of the battery can drive the diaphragm (3) to deform towards the piercing pin (2), such that the diaphragm (3) is pierced by the piercing pin (2).
Resumen de: WO2025176150A1
Provided in the present application are a silicon-carbon composite material and a preparation method therefor, and a secondary battery. The silicon-carbon composite material comprises a core and a shell coating the core, wherein the shell comprises a carbon material; and the core comprises a carbon framework, a first silicon-deposited layer formed on the carbon framework, a second silicon-deposited layer formed on the first silicon-deposited layer, and an oxide layer formed between the first silicon-deposited layer and the second silicon-deposited layer, the oxide layer comprising SiOx (0.5≤x≤2). The silicon-carbon composite material provided by the present application has a good specific capacity and initial coulombic efficiency, and also has relatively high cycle performance and rate capability.
Resumen de: WO2025179208A1
A method of processing a battery including an electrode including pores filled with a gas involves applying a formation current to the battery, the formation current comprising at least one frequency attribute, the at least one frequency attribute based on an assessed dielectric attribute associated with wetting the pores with electrolyte. A method of processing a battery including a battery comprising an electrode involves applying a formation current to the battery comprising at least one frequency attribute, the at least one frequency attribute based on an assessed dielectric attribute associated with forming a solid electrolyte interphase (SEI) layer on the electrode.
Resumen de: WO2025179162A1
One example provides a method of recovering fluoride from wastewater with a first, higher concentration of fluoride. The method comprises adding a metal cation to the wastewater that reacts with fluoride in the wastewater to form a precipitate comprising a fluoride compound that is less soluble in water than lithium fluoride to produce treated wastewater with a second, lower concentration of fluoride; and recovering the precipitate.
Resumen de: WO2025179153A1
A nonaqueous electrolyte solution for an energy storage device is described. The solution includes i) an aprotic organic solvent system; ii) an alkali metal salt; and iii) at least one halogenated phosphorus-based flame retardant additive compound. The halogenated phosphorus-based flame retardant increases the flame retardancy of the nonaqueous electrolyte solution without appreciably impacting the electrochemical performance of the nonaqueous electrolyte solution. Methods and processes for making such nonaqueous electrolyte solutions are provided. Electrical energy storage devices with these enhanced properties, including enhanced flame retardancy, are also provided.
Resumen de: WO2025178830A1
A composition useful from making cathodes for use in lithium ion rechargeable batteries is comprised of an alloy of a lithium borate and a lithium metal oxide, wherein the metal is one or more of Co, Mn and Ni. The alloy may have other lithium salts such as lithium sulfate and lithium phosphate. The alloys may be useful in lithium ion batteries having solid electrolytes.
Nº publicación: WO2025178995A1 28/08/2025
Solicitante:
UNIV CALIFORNIA [US]
THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
Resumen de: WO2025178995A1
The present disclosure relates to a method for producing a silicon microparticle (SiMP) composite anode material for lithium-ion batteries. The method comprises providing dispersions of SiMPs and graphene oxide (GO) in tetrahydrofuran, mixing the dispersions, injecting the combined dispersion into n-hexane to form a wrapping structure via aggregation and precipitation of GO and SiMP, laser scribing the resulting SiMP/GO film to reduce the GO to laser-scribed graphene (LSG) and simultaneously forming silicon oxide (SiOx) and silicon carbide (SiC) protection layers on the SiMPs to alleviate severe volume change, and removing the n-hexane by evaporation through thermal treatment to obtain the SiMP/LSG composite anode material. This method significantly improves the cycling performance of SiMPs, effectively doubling the cycle life of batteries compared with simple physical mixing methods, thus providing a scalable and efficient solution to produce high-performing SiMP composite anode materials in lithium-ion batteries.
BOPI
Sede Electrónica
