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1488
resultados
Última actualización
17/07/2025 [07:21:00]
Resultados 1000 a 1025 de 1488
Resumen de: US2025219149A1
A non-aqueous electrolyte includes: a first sodium salt, where the first sodium salt includes at least one of sodium hexafluorophosphate, sodium hexafluoroarsenate, sodium perchlorate, and sodium trifluoroacetate; and a second sodium salt, where the second sodium salt includes one, two, or more of a sodium salt having sulfonate, a sodium salt having oxalate, a sodium salt having phosphate, and a sodium salt having borate.
Resumen de: US2025214479A1
A replaceable battery according to the present disclosure is a replaceable battery mounted on a vehicle so as to be removable by sliding the replaceable battery in a longitudinal direction, the replaceable battery including: a rectangular parallelepiped cell stack having a plurality of battery cells stacked thereon; and a case for accommodating the cell stack. The case includes a rectangular tube shaped main body part, a first lid part for closing one opening end of the main body part, and a second lid part for closing an other opening end of the main body part. The first lid part is provided with a pull-handle, and the second lid part is provided with a connector protruding outward so as to be connected to a vehicle, and a relief valve through which gas generated from the cell stack is discharged.
Resumen de: US2025214859A1
A solid electrolyte precursor, a solid electrolyte, and a method of preparing the solid electrolyte. The solid electrolyte precursor includes a compound represented by Formula 1 and has an amorphous phase and the amorphous phase is contained in an amount of at least 50 volume percent based on the total volume of the solid electrolyte precursor. When the solid electrolyte precursor is analyzed by X-ray diffraction using Cu Kα radiation at a diffraction angle of 10° 2θ to 90° 2θ, a proportion of an area Pb of peaks having a full width at half maximum of 0.01° to 0.5° to a total area Pa of all peaks is 10% or less:(LixAa)(LayB′b)(ZrzC′c)O12+δ.
Resumen de: US2025214844A1
The present invention relates to a process for obtaining graphite, and optionally metals of value, which are preferably selected from at least one of the metals of the first and/or the third main group and/or at least one of the metals from the 7th to 11th secondary group, from lithium-ion batteries. The invention also relates to a corresponding system (71).
Resumen de: US2025214841A1
Disclosed is a preparation method for ammonium manganese iron phosphate. The preparation method comprises: respectively mixing a mixed salt solution of metals and an ammonium dihydrogen phosphate solution with an organic solution to obtain a mixed liquor of metal salts and a mixed liquor of phosphate; concurrently adding the mixed liquor of metal salts, the mixed liquor of phosphate and a first ammonia water into a base solution for reaction; and carrying out solid-liquid separation to obtain ammonium manganese iron phosphate. A mixed metal salt solution of a ferrous source and a manganese source and a phosphorus source are subjected to a coprecipitation reaction in an organic phase, to synthesize large-particle ammonium manganese iron phosphate with high compaction density. After the ammonium manganese iron phosphate is mixed with a lithium source and a carbon source, sintering can be carried out to prepare a lithium manganese iron phosphate cathode material.
Resumen de: US2025214838A1
One embodiment of the present disclosure includes a method of producing high-purity alkali metal sulfide including mixing an alkali metal sulfide salt precursor and a reducing agent to form a mixture, reducing the mixture to obtain alkali metal sulfide; and purifying the obtained alkali metal sulfide.
Resumen de: US2025219088A1
An all-solid-state battery electrode of the present invention includes: a molded body formed from an electrode mixture that contains at least an electrode active material, a solid electrolyte, and conductive assistant particles. The conductive assistant particles have an aspect ratio A determined by observing a cross section of the molded body of the electrode mixture of 1.5 or more, and an inter-particle distance L (μm) of the conductive assistant particles in a three-dimensional space and a length b (μm) of a long axis of the conductive assistant particles, which are determined by observing the cross section, satisfy the following relationship: L≤b. The all-solid-state battery of the present invention includes the all-solid-state battery electrode of the present invention as a positive electrode and/or a negative electrode.
Resumen de: US2025219055A1
Provided is a negative electrode for a secondary battery including: a current collector, and a negative electrode active material layer formed on the current collector and containing a first negative electrode active material having a large particle size and a second negative electrode active material having a small particle size, wherein the second negative electrode active material is contained in an amount of 10% by weight or less based on the total weight of the negative electrode active material, and the following Relational Equation 1 is satisfied: Relational Equation 10.4
Resumen de: US2025219087A1
A positive electrode composition containing a conductive material, an active material, a binding material, a dispersing agent for a conductive material, and a liquid medium, wherein the conductive material includes carbon black and carbon nanotubes, wherein the dispersing agent for a conductive material includes two or more dispersing agents having different SP values, and wherein the carbon black has a BET specific surface area of 100 to 500 m2/g.
Resumen de: US2025219054A1
A cathode active material for a lithium secondary battery according to the embodiments of the present disclosure includes: first cathode active material particles which includes a lithium metal oxide containing nickel, cobalt and manganese; and second cathode active material particles which includes a lithium phosphate compound, wherein a molar ratio of the cobalt based on a total number of moles of the nickel, cobalt and manganese in the first cathode active material particles may be more than 0 and less than 0.15, and a weight ratio of the first cathode active material particles and the second cathode active material particles may be 20:80 to 80:20. Accordingly, a lithium secondary battery having improved stability, capacity characteristics, and lifespan characteristics while reducing production costs may be implemented.
Resumen de: US2025219050A1
To provide graphene oxide that has high dispersibility and is easily reduced. To provide graphene with high electron conductivity. To provide a storage battery electrode including an active material layer with high electric conductivity and a manufacturing method thereof. To provide a storage battery with increased discharge capacity. A method for manufacturing a storage battery electrode that is to be provided includes a step of dispersing graphene oxide into a solution containing alcohol or acid, a step of heating the graphene oxide dispersed into the solution, and a step or reducing the graphene oxide.
Resumen de: US2025219170A1
The present disclosure relates to a battery manufacturing system including: a first rack and a second rack, each of which includes a charging and discharging room including an inlet on one surface and accommodating a plurality of battery cells through the inlet, and which are aligned in parallel with each other; and a transport crane, which is provided between the first rack and the second rack, introduces and withdraws a plurality of battery cells accommodated in a charging and discharging transport member into and out of the charging and discharging room through the inlets arranged to face each other, and is movable in the height direction of the first rack or the second rack and in a direction perpendicular to the height direction, and a controlling method thereof.
Resumen de: US2025219153A1
A cylindrical battery comprises an electrode body formed by winding a positive electrode and a negative electrode. The positive electrode includes: a positive electrode core on which a positive electrode tab is welded at a point along the winding direction; and a positive electrode mix layer which is formed on both surfaces of the positive electrode core. The positive electrode tab includes slit burrs which are formed at the ends in the width direction. In a state in which the positive electrode is wound, the positive electrode tab is welded so that the slit burrs are positioned outside the winding and on the side opposite the surface where the positive electrode tab is welded to the electrode core.
Resumen de: US2025219247A1
An embodiment of the present invention provides a separator for a non-aqueous secondary battery, including a porous substrate; and an adhesive layer that is provided on at least one side of the porous substrate and that contains a polyvinylidene fluoride type resin, in which the separator contains a lithium imide salt.
Resumen de: US2025219214A1
Provided are a battery cell, a battery, and an electrical apparatus, where the battery cell includes an electrode assembly, a case, and a current collecting end cover. The electrode assembly has a first tab, the case defines an accommodation space and an opening located at an end of the accommodation space, the accommodation space being used to accommodate the electrode assembly, and the current collecting end cover is fixedly connected to the case, the current collecting end cover sealingly covers the opening of the case, and the current collecting end cover is electrically connected to the first tab.
Resumen de: US2025219187A1
A vehicle control device and a method thereof are provided. The vehicle control device includes a processor, a memory, a battery, a battery heater, and a battery chiller. The processor determines a mode associated with a coolant, using at least one of a target distance of a vehicle, a traveling start time, or an outside air temperature, or any combination thereof, before the vehicle travels. The processor identifies a first threshold temperature using a designated first dataset, heats a temperature of the coolant up to the first threshold temperature using the battery heater, and identifies a second threshold temperature using a designated second dataset, in response to determining the mode associated with the coolant is a cool storage mode, and cools the temperature of the coolant up to the second threshold temperature using the battery chiller, while the coolant flows through the coolant flow line.
Resumen de: WO2025139146A1
An electrode sheet, a jelly roll, a battery and a preparation method for the jelly roll, which relate to the technical field of batteries. The electrode sheet comprises a current collector, an active material layer and a reinforcing layer. The current collector comprises a tab and a main body, wherein one side of the tab is connected to the main body; the active material layer is arranged on the main body; and the reinforcing layer is arranged at the end of the tab that is close to the main body.
Resumen de: WO2025139476A1
Provided are a negative electrode material and a battery. The negative electrode material comprises a carbon material and a silicon material, wherein the silicon material is located inside the carbon material and/or between the carbon materials. The total volume of the carbon material is VC, the total volume of the silicon material is VSi, and 0.9≤VC/VSi≤2.3. An SEM section of a negative electrode material particle is divided into a plurality of unit regions having an area of A×B, wherein A×B=104 nm2, and the average distance between adjacent silicon material particles in any unit region is d nm, where 3≤d≤50. The provided negative electrode material can improve the dispersion uniformity of the silicon material, and can effectively inhibit the volume expansion of the negative electrode material and improve the cycle performance of a battery.
Resumen de: US2025214839A1
The present disclosure discloses a porous iron phosphate and a preparation method thereof. The preparation method includes the following steps: (1) mixing a phosphorus-iron solution with an aluminum-containing alkaline solution to allow a co-precipitation reaction; (2) subjecting a reaction system obtained in step (1) to solid-liquid separation (SLS) to obtain a precipitate; (3) subjecting the precipitate obtained in step (2) to a reaction with phosphine under heating; (4) after the reaction is completed, cooling a product obtained in step (3), and soaking the product in a weak acid solution; and (5) subjecting a system obtained in step (4) to SLS to obtain a solid, and subjecting the solid to aerobic calcination to obtain the porous iron phosphate.
Resumen de: US2025214484A1
A power supply control device has a charging/discharging unit and a control unit that controls the charging/discharging unit. The charging/discharging unit performs a discharging operation for supplying power to a load based on power from a power storage unit, a regeneration operation for supplying power to a power supply unit based on power from the power storage unit, and a charging operation for supplying power to the power storage unit based on power from the power supply unit. The control unit determines the degree of degradation of the power storage unit, based on the value of a voltage of the power storage unit and the value of a current flowing through the power storage unit during at least one of the regeneration operation and the charging operation performed after the regeneration operation.
Resumen de: US2025214840A1
Process for the manufacture of a fluoride doped cathode active material with olivine crystal structure wherein said process comprises the steps of (a) providing a source of phosphate, source of metal other than lithium selected from iron and, optionally, of at least one further element M1 selected from titanium, vanadium, nickel, yttrium, copper, magnesium, zinc, aluminum, cobalt and manganese, wherein at least 55 mol-% of said metal other than lithium is iron, and wherein said source may be formed from one or more compounds, (b) providing a source of lithium that contains 0.01 to 2.5% by weight of fluoride, uniformly dispersed within said source of lithium, wherein the source of lithium is selected from lithium hydroxide and lithium carbonate, (c) mixing said source of phosphate, of transition metal with said fluoride-containing source of lithium and with additional source of lithium containing less fluoride, and, optionally, with hydrocarbon, (d) optionally, performing a reaction between at least two components of the mixture from step (c), thereby obtaining an adduct, (e) treating the mixture obtained from step (c) or the adduct from step (d) at a temperature in the range of from 400 to 1000° C. under a reducing or inert atmosphere
Resumen de: US2025214845A1
The invention relates to a method for obtaining graphite, and optionally metals of value, which are preferably selected from at least one of the metals of the first and/or the third main group and/or at least one of the metals of the 7th to 11th secondary group, from lithium ion batteries, wherein the batteries (2, 10) having a residual charge of max. 30% are crushed in a crushing unit (73) with the addition of water (12), such that a mixture of crushed batteries and water is obtained, wherein the mixture comprising the crushed batteries and the water is divided into a first aqueous graphite-enriched fraction (15), optionally also containing metal oxides, and a second non-aqueous graphite-depleted fraction (16), and wherein the water is then removed from the first aqueous graphite-enriched fraction (15) such that a dried graphite-containing fraction (18), optionally also containing metal oxides, is obtained. The invention also relates to a corresponding system (71).
Resumen de: US2025219086A1
An energy storage device according to one aspect of the present invention includes: a positive electrode including a positive active material layer containing a positive active material; and a nonaqueous electrolyte, in which the positive active material contains a polyanion compound containing a transition metal element and including a surface at least partially covered with carbon, a ratio of a second BET specific surface area, which is a BET specific surface area of the carbon, to a first BET specific surface area, which is a BET specific surface area of the positive active material layer is more than 10% and less than 35%, and the nonaqueous electrolyte contains an electrolyte salt containing no sulfur element and a sulfur-based compound.
Resumen de: US2025219052A1
A negative electrode plate for a lithium battery and a lithium-ion secondary battery including same are provided. The negative electrode plate includes a negative electrode current collector and a negative electrode material. The negative electrode material includes: a negative electrode active material including graphite and a silicon-based material; a conductive agent; a binder including carbon nanotubes; and a dispersing agent including one or both of lignosulfonate and humic acid.
Nº publicación: US2025219048A1 03/07/2025
Solicitante:
SCHOTT AG [DE]
SCHOTT AG
Resumen de: US2025219048A1
In a method for producing a solid-state lithium-ion conductor material, water and/or steam is used as a medium during the cooling or quenching of an obtained intermediate product. The intermediate product can be comminuted and/or subjected to a cooling process, resulting in the production of a powder in one or more comminution steps. The solid-state lithium-ion conductor material has an ion conductivity of at least 10−5 S/cm at room temperature and a water content of <1.0 wt %. The solid-state lithium-ion conductor material can be used in the form of a powder in batteries or rechargeable batteries, preferably lithium batteries or rechargeable lithium batteries, in particular, separators, cathodes, anodes, or solid-state electrolytes.
BOPI
Sede Electrónica
