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1057
resultados
Última actualización
21/11/2025 [07:10:00]
Resultados 225 a 250 de 1057
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: US2025349850A1
A positive electrode active material and a preparation method therefor, as well as a positive electrode plate, a secondary battery, and a power-consuming apparatus, are disclosed. The positive electrode active material is a polyanionic compound/carbon composite and has the general formula: Na4-xR3-γM(PO4)2P2O7/C, 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; M includes at least one of Mg, Al, Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Zr, Nb, Mo, Sn, Hf, Ta, Si, W, and Pb; 0≤x≤0.5, 0≤y≤0.5, 0≤z
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: US2025346366A1
A portable energy charging system and method for remote, isolated, and mobile energy charging for aerospace or aircraft vehicles which cannot be coupled to stationary (transmissions lines based) vehicle charge systems. The aircraft charging method includes connecting a portable energy source to an energy storage system in the aircraft vehicle and transferring an amount of energy from the portable energy source to the energy storage system in the aircraft. The charging system monitors, using one or more sensor devices, one or more charge condition parameters associated with the charging conditions at said energy storage system of the aircraft vehicle when receiving energy transferred from said portable energy source and detects any condition when a monitored parameter is a value exceeding a threshold level value. In response to detecting a condition when a monitored parameter is of a value exceeding a threshold level value, the charging system responsively initiates a correction.
Resumen de: US2025347039A1
The present invention relates to a fire protection composite, which is made of a liquid applied coating and a mat or fleece; a process for preparing the fire protection composite; use of the fire protection composite for electric vehicle battery; an electric vehicle battery containing the fire protection composite; and a process for preparing the electric vehicle battery.
Resumen de: US2025346717A1
Foamed thermoplastic resin particles including a thermoplastic resin, in which the thermoplastic resin includes a polyester-based resin, a polyimide-based resin, and a phosphorus-based flame retardant, an amount of the polyimide-based resin is 5% to 45% by mass with respect to a total mass of the thermoplastic resin, and an amount of phosphorus is 0.15% to 1.00% by mass with respect to the total mass of the thermoplastic resin. The amount of the polyimide-based resin is preferably 25% to 45% by mass.
Resumen de: US2025346499A1
A cathode active material for a lithium secondary battery according to embodiments of the present disclosure comprises a lithium-sulfur-metal-containing portion and lithium-transition metal oxide particles having a minimum particle diameter (Dmin) of greater than 1 μm, wherein a relative standard deviation of the sulfur signal values of the lithium-transition metal oxide particles, as measured repeatedly ten times by X-ray photoelectron spectroscopy (XPS) analysis, is 10.5% or less.
Resumen de: US2025346497A1
Disclosed are positive electrode active materials and rechargeable lithium batteries. The positive electrode active material comprises a first particle that includes a first lithium composite oxide and has a first average particle diameter, and a second particle that includes a second lithium composite oxide and has a second average particle diameter less than the first average particle diameter. The first particle further includes a first coating layer on a surface of the first lithium composite oxide. The second particle further includes a second coating layer on a surface of the second lithium composite oxide. Each of the first and second lithium composite oxides is lithium composite oxide that includes nickel (Ni) and excludes cobalt (Co). The first coating layer includes aluminum (Al). The second coating layer includes cobalt (Co).
Resumen de: US2025349859A1
A TFE-based polymer composition for an electrochemical device binder for reducing or preventing gas generation inside an electrochemical device cell and deterioration of electrochemical device characteristics and improve the mixture sheet strength. A TFE-based polymer composition for use in an electrochemical device binder, containing: a TFE-based polymer; and at least one compound represented by formula (1) or compound represented by formula (2), the tetrafluoroethylene-based polymer composition being substantially free from water:wherein m is 4 to 20; M1 is H, a metal atom, NR54 (where R5s are optionally the same or different from each other and each represent H or a C1-C10 organic group), or the like; and p is 1 or 2, andwherein n is 4 to 20; M2 is H, a metal atom, NR54 (where R5 is as defined above), or the like; and q is 1 or 2.
Resumen de: US2025349856A1
Provided are a silicon-carbon battery cell for a power tool, a battery pack, an energy storage device, a power tool, and a charger for a battery pack. The silicon-carbon battery cell includes: a positive electrode plate; a negative electrode plate including a silicon material, a carbon material, and a binder; and an electrolyte disposed between the negative electrode plate and the positive electrode plate. The binder includes polyacrylic acid and styrene-butadiene rubber.
Resumen de: US2025349844A1
A positive electrode active material includes secondary particles in each of which primary particles are aggregated, wherein each of the secondary particles is a lithium transition metal composite oxide having a lamellar crystal structure. The lithium transition metal composite oxide includes Li, Ni, Mn, Co, and M, and a molar ratio of the Li, the Ni, the Mn, the Co, and the M is Li:Ni:Mn:Co:M=a:x:y:z:t, where the M, the a, the x, the y, the z, and the t are defined as in the scope of claims for patent. An integrated intensity ratio (I003/I104) of diffraction peaks of the secondary particle in an X-ray diffraction method is 1.05 to 1.19. A crystallite size Loos of the secondary particle is 1000 Å or more.
Resumen de: US2025349838A1
A negative electrode for a secondary battery, including: a current collector; a first negative electrode active material layer provided on the current collector; and a second negative electrode active material layer provided on the first negative electrode active material layer, in which at least one of the first and second negative electrode active material layers includes a lithium-substituted carboxymethyl cellulose, and the second negative electrode active material layers includes a silicon-based active material, and a secondary battery including the same.
Resumen de: US2025349837A1
A positive electrode active material, a preparation method thereof, a positive electrode plate, a secondary battery, and an electric apparatus. The positive electrode active material includes: a core and a first coating layer applied on at least a portion of an outer surface of the core, the core includes a lithium-containing nickel-based transition metal oxide, and the first coating layer includes cerium element. In the lithium-containing nickel-based transition metal oxide, a molar proportion of nickel element among all elements excluding lithium element and oxygen element ranges from 50% to 100%.
Resumen de: US2025346496A1
The present disclosure relates to a nickel-cobalt-manganese-based positive electrode active material comprising a large particle group and a small particle group. An average particle size D50 of the large particle group is greater than an average particle size D50 of the small particle group; the average particle size D50 of the large particle group is from 12 to 20 μm; the large particle group includes polycrystal aggregate particles; each polycrystal aggregate particle includes a secondary particle consisting of a plurality of primary particles aggregated together; each polycrystal aggregate particle has a primary particle size of 2.0 μm or less; a crystallite size of a (003) plane of each polycrystal aggregate particle is from 950 to 1210 Å; a crystallite size of a (104) plane of each polycrystal aggregate particle is from 500 to 750 Å; and a peak intensity ratio I(003)/I(104) of the polycrystal aggregate particles is 2.10 or less.
Resumen de: US2025346495A1
Provided herein are high performance compounds, compositions, and composite materials of sodium (Na), tin (Sn), and oxygen (O). Electrodes and batteries incorporating the compounds, compositions, and composite materials are disclosed. Methods of manufacturing the compounds, compositions, and composite materials are also disclosed.
Resumen de: US2025346490A1
An anode active material for a lithium secondary battery according to the embodiments of the present disclosure includes composite particles comprising carbon-based particles and silicon-containing particles including silicon and hydrogen disposed on the surface of the carbon-based particles and an H/Si ratio of the composite particles, defined by Equation 2, is 0.5% to 5.3%.
Resumen de: US2025346125A1
The disclosure relates to a mobile working machine, in particular a bulldozer or crawler loader, comprising a vehicle chassis, an electric drive system for providing a travelling function and/or a working function of the working machine and an energy storage module, which is configured to supply the electric drive system with electrical energy and/or to store electrical energy provided by the electric drive system. According to the disclosure, the energy storage module has bearing elements, via which it is detachably fastened in a module holder of the vehicle chassis, wherein the bearing elements are arranged laterally raised on the energy storage module and essentially at the level of the centre of gravity of the energy storage module.
Resumen de: US2025346126A1
A battery assembly including a first cell block including a plurality of first battery cells, a second cell block including a plurality of second battery cells, a case including a first accommodation space accommodating the first cell block, a second accommodation space accommodating the second cell block, and a first venting hole. An isolation structure is located between the first cell block and the second cell block, the isolation structure partitioning the first accommodation space and the second accommodation space of the case. The isolation structure includes a plurality of venting channels extending in a vertical direction. The first venting hole overlaps the isolation structure in the vertical direction, and the plurality of venting channels of the isolation structure are configured to communicate with an exterior of the case through the first venting hole of the case.
Resumen de: US2025349846A1
A lithium composite transition metal oxide includes nickel (Ni), cobalt (Co), and manganese (Mn), wherein the lithium composite transition metal oxide includes two or more elements selected from the group consisting of Zr, Al, V, Co, and Mg and additional two or more elements selected from the group consisting of Ti, Y, Sr, Nb, Ba, and Ca, and the lithium composite transition metal oxide is in a form of a particle having a crystallite size of 170-300 nm.
Resumen de: US2025349829A1
A positive electrode active material particle with little deterioration is provided. A power storage device with little deterioration is provided. A highly safe power storage device is provided. The positive electrode active material particle includes a first crystal grain, a second crystal grain, and a crystal grain boundary positioned between the crystal grain and the second crystal grain; the first crystal grain and the second crystal grain include lithium, a transition metal, and oxygen; the crystal grain boundary includes magnesium and oxygen; and the positive electrode active material particle includes a region where the ratio of the atomic concentration of magnesium in the crystal grain boundary to the atomic concentration of the transition metal in first crystal grain and the second crystal grain is greater than or equal to 0.010 and less than or equal to 0.50.
Resumen de: US2025349847A1
A cathode electrode for a secondary battery, a vehicle battery including the cathode electrode, and a method of forming a cathode for a secondary battery. The cathode electrode includes a cathode disposed on a surface of a cathode current collector, wherein the cathode includes an active material including at least one of lithium iron phosphate and lithium manganese iron phosphate, a binder including polyvinylidene fluoride and polytetrafluoroethylene and a conductive filler.
Resumen de: US2025349834A1
One embodiment of the present invention provides a novel positive electrode active material, or a highly safe secondary battery. The positive electrode active material is manufactured in such a manner that after a nickel compound (also referred to as a precursor) containing nickel, cobalt, and manganese is obtained by a coprecipitation method, a mixture obtained by mixing a lithium compound and the nickel compound is heated at a first heating temperature, the heated mixture is crushed or ground and then heated at a second heating temperature which is higher than the first temperature, and magnesium is mixed and a third heat treatment is performed.
Resumen de: US2025349845A1
The present application provides a battery and an electrical apparatus. The battery comprises a case, an electrode assembly and an electrolyte solution. The case is provided with an accommodating cavity inside, and the electrode assembly and the electrolyte solution are both arranged within the accommodating cavity. The electrode assembly comprises a positive electrode plate comprising a positive electrode current collector and a positive electrode active layer located on at least one surface of the positive electrode current collector. The positive electrode active layer comprises a positive electrode active material having a chemical formula of Lix(NiaCObMnc)1−dMdO2−yAy; the KEL of the battery satisfies 1.6 g/Ah≤KEL≤1.9 g/Ah, KEL represents the ratio of the mass of free electrolyte solution to the rated capacity of the battery, in units of g/Ah; and the space utilization rate η of the battery is ≥0.8.
Nº publicación: US2025345881A1 13/11/2025
Solicitante:
PRIME PLANET ENERGY & SOLUTIONS INC [JP]
Prime Planet Energy & Solutions, Inc
Resumen de: US2025345881A1
A jig for laser welding is usable when performing laser welding by applying laser light to a welding-target portion, and includes: an accommodation portion that is able to receive the welding-target portion along a first direction; and an inclined surface extending in a peripheral direction so as to surround the welding-target portion around an axis in the first direction, wherein the inclined surface is able to reflect, in a second direction intersecting the first direction, the laser light emitted toward the jig for laser welding, so as to orient the laser light toward the welding-target portion.
BOPI
Sede Electrónica
