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1482
resultados
Última actualización
03/04/2026 [07:26:00]
Resultados 725 a 750 de 1482
Resumen de: US20260088337A1
A solid electrolyte material contains an Li salt that has a fluorine-containing anion, an in organic filler, and a polymer. The inorganic filler has a surface modified with a fluorinated alkyl. The solid electrolyte material further includes succinonitrile. The inorganic filler contains at least one selected from the group consisting of SiO2, TiO2, ZrO2, and MgO; and the fluorinated alkyl contains at least one of a 1H, 1H, 2H, 2H-tridecafluoro-n-octyl group and a 1H, 1H, 2H, 2H-heptadecafluorodecyl group.
Resumen de: US20260088342A1
A composite ceramic electrolyte particle with a hydrophobic protective layer for a battery electrode, wherein the composite ceramic electrolyte particle is a composite LLZO particle. The composite LLZO particle includes a first LLZO particle. A first hydroxide ion layer is coated on the first LLZO particle to form a second order LLZO composite particle. A first dopamine layer is coated on the second order LLZO composite particle to form a hydrophobic LLZO particle. An outer hydrophobic layer is coated on the hydrophobic LLZO particle to form the composite LLZO particle. The outer hydrophobic layer includes a plurality of peripheral composite particles. Each of the peripheral composite particles includes a peripheral particle. A second hydroxide ion layer is coated on the peripheral particle. A second dopamine layer is coated on the second hydroxide ion layer.
Resumen de: US20260088360A1
The present application provides an electrolyte additive, an electrolytic solution, and an electrochemical device. The electrolyte additive includes a compound represented by formula 1 and a compound represented by formula 2, and the compound represented by formula 2 is selected from the group consisting of a compound represented by formula 2-A, a compound represented by formula 2-B, and a combination thereof.
Resumen de: US20260088361A1
An electrolyte includes a non-aqueous solvent and an electrolyte salt, where the non-aqueous solvent includes ethylene carbonate (EC), and a weight content of the EC in the non-aqueous solvent is denoted by x, based on a total weight of the non-aqueous solvent; the electrolyte salt includes a first electrolyte salt represented by formula (1) and a second electrolyte salt represented by formula (2), and a weight content of the first electrolyte salt in the electrolyte is denoted by y, and a weight content of the second electrolyte salt is denoted by z, based on a total weight of the electrolyte; R1 and R2 each independently include a fluorine atom or a C1-C6 fluoroalkyl group, R3 includes a fluorine atom or a C1-C6 fluoroalkyl group, and M1 and M2 each independently include one or more of Li, Na, and K; where 5%≤x≤25%, 0.75≤x/y≤5, and 120≤x/z≤3000.
Resumen de: US20260088307A1
In one exemplary embodiment, a secondary battery is provided. The secondary battery includes a positive electrode, a first separator disposed on a side of one surface of the positive electrode, and a first negative electrode disposed to be spaced apart from the positive electrode in a lamination direction with the first separator interposed therebetween, where the first negative electrode includes a first current collector, the first current collector is configured with a first resin layer sandwiched between a pair of first conductive layers, and the pair of first conductive layers each have a thickness of 0.3 μm or more and less than 1.9 μm.
Resumen de: US20260088304A1
A composite positive material and a preparation method therefor, a positive electrode plate comprising same, a battery, and an electrical apparatus. The composite positive electrode material comprises a positive electrode active material and a coating layer, wherein the coating layer coats at least part of the surface of the positive electrode active material, the coating layer comprises a composite material, the composite material comprises particles containing elemental M and a lithium-ion conductor material attached onto the surface of the particles containing elemental M, and M comprises at least one of S, Se and Te.
Resumen de: US20260088306A1
A current collector includes a support portion and a conductive portion. The support portion includes an electrically insulating resin composition. The conductive portion includes a first conductive layer, a second conductive layer, and a third conductive layer. The first conductive layer and the second conductive layer extend from the support portion. The third conductive layer is disposed between the first conductive layer and the second conductive layer, is joined to both the first conductive layer and the second conductive layer, and extends from between the first conductive layer and the second conductive layer.
Resumen de: US20260088351A1
A composition for forming a solid electrolyte according to embodiments of the present disclosure includes: a liquid electrolyte including a solvent containing a nitrile compound having an ether group, a first lithium salt including a borate compound, and a second lithium salt different from the first lithium salt; and a monomer having a polymerizable functional group. A solid electrolyte according to embodiments of the present disclosure includes a nitrile compound having an ether group, a first lithium salt including a borate compound, a second lithium salt different from the first lithium salt, and a polymer.
Resumen de: US20260088349A1
An ionically conductive polymer for a gel polymer electrolyte including m repeat units according to formula (1) and n repeat units according to formula (II)wherein R1 is (CH2)x—R3, wherein x is between 1 and 20 and R3 is H or CN; R2 and R5, individually, are C1-C10 alkyl or C2-C1 alkenyl; M is an alkali metal or an alkaline earth metal; the ratio of m to n (m/n) is between 25:1 and 1:25; and m+n is q, wherein q is between 50 and 5000. Also, a gel polymer electrolyte including the ionically conductive polymer, and method of producing the ionically conductive polymer.
Resumen de: US20260088347A1
A method for preparing a polymer solid electrolyte includes (S1) preparing a polymer crosslinked with a polyethylene oxide-based copolymer containing a crosslinkable functional group; and (S2) vapor-depositing a polar solvent onto the polymer prepared in (S1), wherein the vapor deposition step is carried out for a period of time that satisfies a prescribed Equation.
Resumen de: US20260088305A1
An electrode current collector that includes a current collector body and a polymer layer formed on the current collector body, where the polymer layer includes a copolymer containing a first thiophene unit having a hydrocarbon group with 10 or more carbon atoms and a second thiophene unit having a hydrocarbon group with 9 or less carbon atoms, and the electrode current collector can exhibit excellent electrical characteristics, including low resistance, in a normal state in a secondary battery or the like, and can ensure stability through an increase in resistance in an abnormal state. Also provided are uses of the electrode current collector.
Resumen de: US20260088345A1
A cathode material of the present disclosure includes a cathode active material, a coating layer containing a first solid electrolyte, and coating at least part of a surface of the cathode active material, and a second solid electrolyte. The first solid electrolyte contains Li, Al, and X, and does not contain Ti. X is at least one selected from the group consisting of F, Cl, Br, and I. The ratio of the volume of the first solid electrolyte to the total volume of the first solid electrolyte and the cathode active material is greater than or equal to 5.6% and less than or equal to 8.1%.
Resumen de: US20260088288A1
A lithium secondary battery according to exemplary embodiments may include a cathode which includes: a cathode current collector, and a cathode active material layer formed on the cathode current collector and including cathode active material particles; and an anode disposed to face the cathode. The cathode active material particles may include activated over-lithiated oxide particles and a coating material formed on at least a portion of the surface of the activated particles and containing a coating element. An upper limit of operation voltage of the lithium secondary battery may be 4.5 V or less relative to the oxidation-reduction potential of lithium.
Resumen de: US20260088268A1
The present invention relates to a method for forming an SEI layer on an anode by using a non-electrochemical process for alkaliating anodes, resulting in reductions of the manufacturing capital requirements, time investments and energy consumed during industrial battery production.
Resumen de: US20260088294A1
Provided is a positive electrode including a positive electrode current collector; and a positive electrode active material layer located on the collector and including a positive electrode active material, a copolymer binder, and an amine. The copolymer binder includes a first structural unit including a carboxyl group and a nonionic second structural unit, and the carboxyl group and the amine are present in a form of a salt. The positive electrode increases capacity while reducing production cost, thereby ensuring long cycle-life characteristics and improving high-voltage characteristics and high-temperature storage characteristics. The rechargeable lithium battery including the positive electrode may exhibit high initial charge/discharge capacity and efficiency even under high voltage driving conditions, and can achieve long cycle-life characteristics.
Resumen de: US20260088371A1
A traction battery for a motor vehicle, with a battery housing in which a battery cell is arranged, which is electrically connected via an electrical connection device to an electrical battery connection of the traction battery and/or to a further battery cell also arranged in the battery housing. A gas sensor for detecting at least one gas component of a gas present in the battery housing is arranged on the connection device and is electrically connected via the connection device to a battery control device.
Resumen de: US20260088297A1
An ionically conductive polymeric binder for a cathode including m repeat units according to formula (I) and n repeat units according to formula (II)wherein R1 is (CH2)x—R3, wherein x is between 1 and 20 and R3 is H or CN; R2 and R5, individually, are C1-C10 alkyl or C2-C10 alkenyl; M is an alkali metal or an alkaline earth metal; the ratio of m to n (m/n) is between 25:1 and 1:25; and m+n is q, wherein q is between 50 and 5000. Also, a cathode including the ionically conductive polymeric binder, and a method of producing the ionically conductive polymeric binder.
Resumen de: US20260088293A1
A halogen-free polymeric binder for a cathode according to formula (I)wherein R1 is (CH2)x—R3, wherein x is between 1 and 20 and R3 is H or CN; R2 is C1-C10 alkyl or C2-C10 alkenyl, and n is between 50 and 5000. Also, a cathode including the halogen-free polymeric binder, and a method of producing the halogen-free polymeric binder.
Resumen de: US20260088290A1
Provided are a positive active material for a lithium secondary battery, a method of preparing the positive active material, a positive electrode for a lithium secondary battery including the positive active material, and a lithium secondary battery including a positive electrode including the positive active material, in which the positive active material may include a nickel-based lithium metal oxide secondary particle including a plurality of large primary particles, the nickel-based lithium metal oxide secondary particle may have a hollow structure having a pore inside, a size of each of the large primary particles may be in a range of about 2 micrometers (μm) to about 6 μm, and a size of the nickel-based lithium metal oxide secondary particle may be in a range of about 10 μm to about 18 μm.
Resumen de: US20260088291A1
A coated active material according to the present disclosure includes: a positive electrode active material; and a coating layer coating at least a portion of a surface of the positive electrode active material. The coating layer includes a compound including Li, M, and F. In the compound, the M is at least one element selected from the group consisting of metalloid elements and metal elements other than Li. An amount of F in the compound per unit surface area of the positive electrode active material is 10 mg/m2 or more and 280 mg/m2 or less.
Resumen de: US20260088292A1
A negative electrode active material, a negative electrode for a rechargeable lithium battery including the same, and a method for preparing the same are provided. A negative electrode active material includes a carbon-based material, and a surface modifier on a surface of the carbon-based material, where the surface modifier includes a polar functional group, and the polar functional group contains at least one of a carboxyl group, an amine group, a thiol group, and/or a combination thereof.
Resumen de: US20260088287A1
A main object of the present disclosure is to provide an electrode active material capable of suppressing the volume change of the electrode layer. The present disclosure achieves the object by providing an electrode active material including a secondary particle that is an aggregation of a plurality of primary particle, wherein the primary particle is a Si-based active material containing a Si element, and a particle size D10 (μm) and a particle size D50 (μm) of the secondary particle satisfy the specified formula (1).
Resumen de: US20260088286A1
A cathode active material for a lithium secondary battery according to exemplary embodiments of the present invention includes a lithium metal oxide particle core part and an organic compound coating layer which includes a functional group containing a sulfur atom. The cathode active material may suppress side reactions with an electrolyte while maintaining the stability of the layered structure of the lithium metal oxide particles, suppress a gelation phenomenon of the slurry during manufacturing a cathode, and maintain the high energy, high output and long life-span characteristics of the lithium secondary battery.
Resumen de: US20260088285A1
An anode active material for a secondary battery includes a plurality of composite particles. The composite particles include carbon-based particles containing pores therein. A silicon-containing coating layer is formed inside the pores or on a surface of the carbon-based particles. A surface oxide layer is formed on the silicon-containing coating layer. The surface oxide layer contains silicon oxide. A silicon oxidation number ratio of the composite particle is predefined.
Nº publicación: US20260088289A1 26/03/2026
Solicitante:
UMICORE [BE]
Umicore
Resumen de: US20260088289A1
The present invention relates to an electrochemical cell comprising an anode, a polymer electrolyte and an NMC type cathode active material. The polymer electrolyte comprises an electrolyte composition, preferably comprising a deep eutectic solvent (DES), and a polymer network having a polyacrylamide backbone.
BOPI
Sede Electrónica
