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1509
resultados
Última actualización
17/03/2026 [07:16:00]
Resultados 300 a 325 de 1509
Resumen de: US20260074189A1
A negative electrode slurry, negative electrodes, and all-solid-state batteries are provided. The negative electrode slurry comprises a metal-carbon composite in which a metal and a carbon-based material are chemically bonded by sulfur, a binder, and a solvent. An average particle diameter (D50) of the metal-carbon composite is about 150 nm to about 1,000 nm.
Resumen de: WO2026054101A1
Provided is a method for producing a lithium transition metal composite oxide that uses a positive electrode recovered from a used lithium-ion battery. The method for producing a lithium transition metal composite oxide includes the following steps. (1) A step for preparing a positive electrode recovered from a used lithium-ion battery, (2) a step for heating the positive electrode in a temperature range exceeding the thermal decomposition start temperature of a binder, (3) a step for removing a current collector from the heated positive electrode and recovering a positive electrode mixture, (4) a step for recovering a lithium transition metal composite oxide from the recovered positive electrode mixture, (5) a step for washing the recovered lithium transition metal composite oxide, (6) a step for kneading the washed lithium transition metal composite oxide and a lithium compound, (7) a step for calcining the kneaded material under prescribed conditions, and (8) a step for cooling the calcined lithium transition metal composite oxide.
Resumen de: WO2026054100A1
Provided is a method for producing a lithium transition metal composite oxide employing positive electrodes recovered from used lithium ion batteries. The method for producing a lithium transition metal composite oxide includes the following steps. (1) A step for preparing a positive electrode recovered from a used lithium ion battery; (2) a step for heating the positive electrode in a temperature range higher than a melting point of a binder and lower than a thermal decomposition start temperature; (3) a step for removing a current collector from the heated positive electrode to recover a positive electrode mixture; (4) a step for recovering a lithium transition metal composite oxide from the recovered positive electrode mixture; (5) a step for washing the recovered lithium transition metal composite oxide; (6) a step for kneading the washed lithium transition metal composite oxide with a lithium compound; (7) a step for calcining the kneaded material under predetermined conditions; and (8) a step for cooling the calcined lithium transition metal composite oxide.
Resumen de: WO2026054102A1
Provided is a method for producing a lithium transition metal composite oxide using a positive electrode recovered from a spent lithium-ion battery. The method for producing a lithium transition metal composite oxide comprises the following steps. (1) A step for preparing a positive electrode recovered from a spent lithium-ion battery, (2) a step for treating the positive electrode with radicals, (3) a step for removing a current collector and recovering a positive electrode mixture from the treated positive electrode, (4) a step for recovering a lithium transition metal composite oxide from the recovered positive electrode mixture, (5) a step for cleaning the recovered lithium transition metal composite oxide, (6) a step for kneading the cleaned lithium transition metal composite oxide and a lithium compound, (7) a step for calcining the kneaded substance under a predetermined condition, and (8) a step for cooling the calcined lithium transition metal composite oxide.
Resumen de: WO2026052148A1
Provided in the present application are a positive electrode material, a positive electrode sheet, and a secondary battery. The positive electrode material contains an element M, the element M being selected from at least one metal element in groups IA and IIA in the periodic table of elements; the distribution of the element M among particles satisfies: 1.2≤X2/X1≤20, wherein X1 is the concentration of the element M at a central region of the particles and X2 is the concentration of the element M at a surface layer region of the particles; and the surface of the positive electrode material contains nitrate ions, and the amount of nitrate ions is N1, wherein 10 ppm≤N1≤100 ppm. The positive electrode material of the present application has high structural stability and few microcracks, and a stable interface protection layer can be formed on the surface of the positive electrode material, reducing the occurrence of side reactions between an electrolyte and the surface of the positive electrode material, and thereby comprehensively improving the capacity and cycle performance of a battery prepared using the positive electrode material while also improving gas production performance.
Resumen de: WO2026052149A1
Provided in the present application are a positive electrode material, a positive electrode pole piece thereof, and a secondary battery. The positive electrode material comprises a plurality of particles. At least some of the particles have micro-cracks. The size of the micro-cracks is 0.5 nm to 30 nm. The proportion of the number of the particles having micro-cracks in the total number of particles of the positive electrode material is 1.5% to 13%. The method for measuring the proportion comprises: performing a scanning electron microscope test on the positive electrode material to obtain a scanning electron microscope image, selecting 300 positive electrode material particles from the scanning electron microscope image, and counting the number of positive electrode material particles having micro-cracks to obtain the proportion. The positive electrode material or a positive electrode pole piece using the positive electrode material is applied to a secondary battery, which has significantly reduced gas generation behavior and a relatively high capacity, which can facilitate the improvement of the cycle stability and safety of the secondary battery.
Resumen de: WO2026052145A1
A cleaning apparatus comprising a fan assembly (300), a power supply assembly (600) and a handle (500), wherein a first air channel (500c) is formed inside the handle (500), and the first air channel (500) is configured to communicate the fan assembly (300) with the power supply assembly (600), such that an airflow flows from an accommodating cavity (380b) into an inner cavity of a battery compartment (620); and the fan assembly (300) has a filter member (800) for filtering the airflow that enters the first air channel (500c).
Resumen de: WO2026051195A1
The present invention relates to the technical field of positive electrode sheets of lithium batteries, and in particular relates to preparation methods for and the use of a polyamide-imide binder and a positive electrode sheet. The polyamide-imide binder is a high-molecular polymer prepared by polymerizing a diamine monomer and a dianhydride monomer to prepare a polyamide acid intermediate, then adding a diisocyanate thereto and performing cross-linking. The polyamide-imide binder comprises both amide groups and imide groups, and has a number-average molecular weight of 50,000-300,000. The positive electrode sheet comprises the polyamide-imide binder. In the polyamide-imide binder, some amide groups are added on the basis of polyimide, thereby retaining high tensile strength and elasticity modulus of the imide groups, improving the flexibility and impact resistance of the electrode sheet, lowering the cracking risk of the electrode sheet, enhancing the capacity retention ratio and safety of a battery and prolonging the service life; moreover, the energy density of the battery can be further improved by means of thick coating.
Resumen de: WO2026051479A1
A polymer electrolyte membrane, a battery cell, a battery device, and an electric device. The polymer electrolyte membrane comprises a first polymer electrolyte membrane and a second polymer electrolyte membrane which are stacked; the first polymer electrolyte membrane comprises a first polymer, a first plasticizer, and a first electrolyte salt, and the second polymer electrolyte membrane comprises a single-ion conducting polymer electrolyte. The polymer electrolyte membrane is used in the battery cell so that the battery cell has good cycle performance.
Resumen de: WO2026051430A1
Disclosed are an identification method, a battery system (10), an energy storage power source (100) and a storage medium. The identification method is used for a battery system (10), wherein the battery system (10) comprises a plurality of battery modules (11), each battery module (11) comprises a battery management system board (111), and the battery management system board (111) comprises an input interface (1111). The identification method comprises: acquiring a level of the input interface (1111) of the battery management system board (111); when the level of the input interface (1111) is a low level, determining that a battery module (11) corresponding to the battery management system board (111) is a master module; and when the level of the input interface (1111) is a high level, determining that the battery module (11) corresponding to the battery management system board (111) is a slave module.
Resumen de: US20260074262A1
A tape attaching device including: a lower support structure to support a cylindrical electrode assembly; a plurality of compression jigs to bend an insulating tape attached to a side surface of the electrode assembly and protruding in a height direction along a circumference of an upper surface of the electrode assembly, and attach the insulating tape to the upper surface of the electrode assembly; a pressing device to flatten the upper surface of the electrode assembly to which the insulating tape is attached; and a controller to control the compression jigs and the pressing device.
Resumen de: US20260074301A1
A modified solid electrolyte, a preparation method thereof, a solid-state battery, and an electric apparatus are disclosed. Components of the modified solid electrolyte include a solid electrolyte substrate and a phase-transforming toughening agent dispersed within the solid electrolyte substrate; and in the modified solid electrolyte, the phase-transforming toughening agent is primarily dispersed at grain boundaries of the solid electrolyte; where the phase-transforming toughening agent is capable of phase transformation under the action of an external force.
Resumen de: US20260074300A1
A structure for electrochemical cells includes a conductive sheet, a layer of conductive nanomaterial, such as carbon nanotubes, on the sheet's surface, and a dry, ionically conductive adhesive, comprising a solid electrolyte interphase (SEI), binding the nanomaterial. A method forms the structure by coating a conductor with the nanomaterial, wetting it with an electrolyte solution, and decomposing the electrolyte, often via electrode contact, to create the SEI. The SEI enhances mechanical resilience and uniform lithium plating, reducing safety risks in lithium-metal batteries. The scalable process simplifies electrode fabrication, supporting high-performance, durable anodes for electrochemical applications.
Resumen de: US20260074298A1
The present disclosure provides a technique for making an electrolytic solution efficiently osmose into an electrode assembly. A herein disclosed electricity storage device includes a case having a liquid injection part, an electrode assembly, a resin film surrounding the electrode assembly, and an electrolytic solution. The case includes a bottom wall, an upper wall, and a first side wall. The liquid injection part is provided at a position closer to the upper wall of the first side wall. The resin film includes a first end part extending from one side in a predetermined direction to cover a part of a bottom part of the electrode assembly, and includes a second end part extending along the predetermined direction from a direction different from the first end part. A part of the second end part is stacked at the bottom wall side of the case with respect to the first end part.
Resumen de: US20260074296A1
An electrode assembly, and a battery cell and a power source including the same are provided. The electrode assembly includes a first electrode plate wound about a winding axis and including a first uncoated portion without a first electrode active material coated thereon, a second electrode plate wound about the winding axis and including a second uncoated portion without a second electrode active material coated thereon, a separator disposed between the first electrode plate and the second electrode plate, and a plurality of segments formed on at least one of the first uncoated portion or the second uncoated portion. The plurality of segments are arranged such that at least one bottom angle is changed in a winding direction.
Resumen de: WO2026054099A1
Provided is a method for producing a lithium transition metal composite oxide using a cathode recovered from a used lithium-ion battery. The method for producing a lithium transition metal composite oxide includes the following steps. (1) A step for preparing a cathode recovered from a used lithium-ion battery; (2) a step for heating the cathode at a temperature range higher than the thermal decomposition initiation temperature of the binder; (3) a step for removing a current collector from the heated cathode and recovering a cathode mixture; (4) a step for recovering a lithium transition metal composite oxide from the recovered cathode mixture; (5) a step for washing the recovered lithium transition metal composite oxide; (6) a step for kneading the washed lithium transition metal composite oxide and a lithium compound; (7) a step for calcining the kneaded material under a predetermined condition; and (8) a step for cooling the calcined lithium transition metal composite oxide.
Resumen de: WO2026055258A1
The chip-integrated intelligent battery system (CIBS) device allows an ultra-fast collection of high-fidelity battery data including, but not limited to, battery voltage, current, external and internal temperature, pressure, gaseous species, vibration and mechanical impact, during the cell operation from the moment the cell is manufactured. CIBS is integrated with actuator, microprocessor, data storage, data transmission, current sensor, voltage sensor, gas pressure sensor, gas species sensor, and power source leads, to provide instant feedback on various parameters inside the battery to assess the battery's performance. The data from CIBS is collected via an integrated or a discrete antenna and streamed wirelessly or through a wired system to a separate control device. Such a device can be part of or a discrete component of the battery management system.
Resumen de: WO2026055175A1
Disclosed herein is a semi-solid polymer electrolyte comprising an electrolyte salt, a solvent and a polymer obtained via an in situ ring-opening polymerization of a monomer without any catalyst other than the electrolyte salt. An electrochemical device comprising the electrolyte exhibits an improved cycling performance and fast charging performance.
Resumen de: WO2026055137A1
The present disclosure relates to an electrode assembly comprising an electrode and a coating layer or sleeve configured to be positioned over a bare region of an electrode, and methods of making the same. The coating layer or sleeve may reduce incidence of separator failure and/or internal short circuiting. The coating layer or sleeve may help reduce the stress caused by the edge of the electrode against another electrode. Energy storage devices, such as a lithium-ion battery, utilizing the electrode assembly are also described.
Resumen de: WO2026055096A1
Disclosed is a method for preparing a battery assembly based on multiple pre-pressed subunits each of which begins and ends with a cathode layer. In some embodiments, the battery assembly prepared by the method as disclosed herein can lead to a longer cycle life in comparison to one prepared by pre-pressed subunits beginning and ending with an anode layer.
Resumen de: WO2026052154A1
The present application relates to a negative electrode material. The negative electrode material comprises an inner core and a coating layer located on at least part of the surface of the inner core; the inner core comprises a carbon matrix and a silicon material, and at least part of the silicon material is located in the carbon matrix; and the mass content of the coating layer in the negative electrode material is A% and the powder conductivity of the negative electrode material at 20 kN is ρ S/cm, wherein 4≤A*ρ≤30. In the negative electrode material of the present application, the product relationship between the mass content of the coating layer and the powder conductivity of the negative electrode material is controlled to be within a certain range, thus achieving a balance between the thickness of the coating layer and the powder conductivity, and reducing the occurrence of powder conductivity decrease caused by excessive coating layer thickness, such that the negative electrode material can have good powder conductivity while maintaining the advantage, brought about by the coating layer, of a reduction in side reactions.
Resumen de: WO2026052147A1
A cleaning device, comprising a fan assembly (300) and a cover plate apparatus (400). The fan assembly (300) comprises a main housing (350); an accommodating cavity (380b) used for accommodating a filter member (800) is formed within the main housing (350), one end of the main housing (350) along a first direction has an opening (380c), first through holes (380a) are formed on a side wall of the main housing (350), the opening (380c) and the first through holes (380a) are in communication with the accommodating cavity (380b), and the first direction is parallel to the axial direction of the fan assembly (300). The cover plate apparatus (400) is movably mounted on the main housing (350) such that the cover plate apparatus (400) has a first state for covering the opening (380c) or a second state for opening the opening (380c), and when the cover plate apparatus (400) is in the second state, the filter member (800) can be loaded into or removed from the accommodating cavity (380b) through the opening (380c). The cover plate apparatus (400) comprises a cover plate (410) and a display component (900), the display component (900) being mounted on the side of the cover plate (410) facing away from the accommodating cavity (380b) along the first direction.
Resumen de: WO2026052144A1
A cleaning apparatus comprising a fan assembly (300), a handle (500) and a support member (510), wherein the fan assembly (300) comprises a main housing (350) and an electric motor (360), the electric motor (360) being located in the main housing (350); the handle (500) is connected to the lower side of the fan assembly (300); the support member (510) is connected to the lower side of the fan assembly (300) and is spaced apart from the handle (500); and the connection between the handle (500) and the fan assembly (300) is located at the axial front end of the electric motor (360), and the connection between the support member (510) and the fan assembly (300) is located at the axial rear end of the electric motor (360).
Resumen de: WO2026051212A1
The present invention relates to the technical field of lithium-ion batteries. Disclosed are a graphite composite material having a functional coating layer, a preparation method therefor and a use thereof. The graphite composite material having a functional coating layer is a secondary particle formed by bonding graphite single particles of a core-shell structure. Each graphite single particle comprises a graphite particle and a functional coating layer that coats the surface of the graphite particle. The functional coating layer comprises a fast ion conductor and a doped element carbon layer. In the graphite composite material having a functional coating layer disclosed in the present invention, by coating the surfaces of graphite particles with a doped element carbon layer and a fast ion conductor layer and performing re-granulation to form a secondary particle, the Li+ diffusion path is shortened and the interfacial diffusion resistance is reduced, and the surface SEI layer is stabilized, thereby significantly improving the high-rate capacity performance and long-cycle stability of the graphite composite material.
Nº publicación: WO2026051147A1 12/03/2026
Solicitante:
ZHEJIANG LIWINON ENERGY TECH CO LTD [CN]
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Resumen de: WO2026051147A1
A negative electrode material, a negative electrode sheet, and a lithium-ion battery. The negative electrode material comprises a first negative electrode active material and a second negative electrode active material; the length-to-diameter ratio of the first negative electrode active material is a, and the powder compaction and pressure relief rebound rate is P1; the length-to-diameter ratio of the second negative electrode active material is b, and the powder compaction and pressure relief rebound rate is P2; and P1, P2, a, and b satisfy the relationship: (37*P1/a+75*P2/b)＞2.5.
BOPI
Sede Electrónica
