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1376
resultados
Última actualización
03/05/2025 [07:30:00]
Resultados 25 a 50 de 1376
Resumen de: US2025141056A1
A battery module includes a cell assembly, a first component, and a first conductive member. The cell assembly includes a plurality of cells, the cell includes a cell shell and an electrode terminal, and each electrode terminal includes a welding portion. The plurality of cells include a first cell and a second cell. The first component and the cell shell are arranged along a first direction. The first conductive member is disposed on a side of the first component, the side of the first component being a side oriented away from the cell shell. The first conductive member includes a first connection portion and a second connection portion. The first connection portion is welded to the electrode terminal of the first cell. Along the first direction, a projection of the welding portion of at least one second cell overlaps a projection of the first conductive member.
Resumen de: US2025141052A1
A bus bar 20 is a plate-shaped bus bar 20 that connects a plurality of power storage elements 11, and includes a plurality of connection portions 21 connected to electrode terminals 12A and 12B of the plurality of power storage elements, and one or more intermediate portion 22 that couples the adjacent connection portions 21, the connection portions 21 include electrode welding portion 23 disposed so as to respectively oppose the electrode terminals 12A and 12B and welded to the electrode terminals 12A and 12B, the intermediate portion 22 is provided with one or more slit 24, and the slit 24 has a shape elongated in an arrangement direction in which the connection portions 21 are arranged side by side and has a predetermined dimension in a width direction orthogonal to both the arrangement direction and an opposing direction in which the electrode welding portions 23 opposes the electrode terminals 12A and 12B.
Resumen de: US2025141045A1
A separator for a rechargeable lithium battery and a rechargeable lithium battery including the same are disclosed. For example, in an embodiment, provided is a separator for a rechargeable lithium battery including a heat resistant layer and an adhesive layer which are sequentially formed on at least one surface of a substrate, wherein the heat resistant layer includes a ceramic, the adhesive layer includes an adhesive binder and an organic filler, and the adhesive binder includes a polymer having an interpenetrating polymer network (IPN) structure.
Resumen de: US2025140827A1
One embodiment of the present invention provides a positive electrode active material for a sodium secondary battery, including P2-type layered oxide particles and O3-type layered oxide particles, wherein in SEM-EDS mapping analysis, an atomic ratio (S3/S2) of a surface Na content (at %) (S3) of the O3-type layered oxide particles to a surface Na content (at %) (S2) of the P2-type layered oxide particles is 0.4 to 1.6.
Resumen de: US2025140815A1
An electrochemical device, including a positive electrode. The positive electrode includes a positive electrode current collector and a positive electrode active material layer disposed on a surface of the positive electrode current collector. The positive electrode active material layer includes a base portion and a protruding portion on a surface of the base portion away from the current collector, where a thickness of the base portion is d microns, and a height of the protruding portion is a microns. The positive electrode active material layer includes a positive electrode active material, and the positive electrode active material includes a lithium-nickel composite oxide, where a molar proportion of element nickel in the lithium-nickel composite oxide in metal elements other than lithium in the lithium-nickel composite oxide is X, satisfying: 0.2d×x≤a≤1.15d×x.
Resumen de: US2025137088A1
The invention provides a method for producing valuable metals from raw material containing the valuable metals containing Cu, Ni, and Co, the method including: a preparation step of preparing a raw material containing at least Li, Al, and the valuable metals; a reductive melting step; and a slag separation step of separating slag from the reduced product to recover an alloy, wherein in any one or both of the preparation step and the reductive melting step, a flux containing calcium (Ca) is added to the raw material, and in the reductive melting step, while cooling the furnace wall of the melting furnace by the cooling means, the thickness of the slag layer is adjusted so that the temperature of the interface between a layer of the alloy and a layer of the slag is higher than the temperature of the refractory surface of the furnace wall in the melting furnace.
Resumen de: US2025140825A1
A lithium-ion battery with an enhanced electrode structure and methods for forming such an electrode structure are discussed. The electrode assembly comprises a pre-coat layer compressed with a metal current collector on which a lithium-manganese rich active layer is then deposited and compressed to form the assembly. The disclosed electrode structure reduces internal resistance.
Resumen de: US2025140828A1
This invention provides a method for treating positive electrode active material particles comprising steps of a lithium-nickel composite is introduced into water and stirred to prepare a slurry; an aluminum-containing solution is dripped onto the slurry while the slurry is stirred; the slurry on which the aluminum-containing solution has been dripped is filtered to obtain a cake-like compound; and the cake-like compound is dried by performing a heat treatment, and a Li—Al hydroxide coating layer is formed on surfaces of secondary particles of the lithium-nickel composite, and at least part of grain boundary portions formed by adjacent primary particles located on the outermost surface, among a plurality of primary particles constituting the secondary particles, and thus possible to restrict any more cracking of particles than necessary and to control the amount of residual lithium, and a deterioration in battery characteristics can be restricted, even with repeated use over long time.
Resumen de: US2025140922A1
An electrolyte solution includes an additive A and an additive B. The additive A includes at least one selected from a group consisting of a compound of Formula (I-1), a compound of Formula (I-2), or a compound of Formula (1-3). The additive B includes at least one of lithium bis(trifluoromethanesulfonyl)imide, Lithium difluoro (bisoxalato)phosphate, or lithium bis(oxalato) borate. Applying the electrolyte solution containing the additive A and the additive B to a lithium-ion battery can reduce the impedance of the lithium-ion battery and improve the low-temperature cycling performance and high-temperature storage performance of the lithium-ion battery.
Resumen de: US2025140868A1
A current collector for rechargeable lithium batteries and a rechargeable lithium battery including the same are disclosed. The current collector includes: a polymer support layer; a conductive layer on at least one surface of the polymer support layer; and a carbon-containing layer on at least one surface of the polymer support layer, and the carbon-containing layer includes at least one of carbon nanotubes or carbon nanofibers extending from the polymer support layer or the conductive layer.
Resumen de: US2025140869A1
A negative electrode includes a negative electrode current collector and a first negative electrode active material layer on the negative electrode current collector, wherein the negative electrode current collector includes a first metal substrate including a first metal, and a coating layer positioned on the first metal substrate and containing a second metal, the second metal having a greater Mohs hardness than the first metal.
Resumen de: US2025140872A1
An electrode and a lithium battery including the same are provided. The electrode includes an electrode active material layer and two or more electrode current collectors arranged along a thickness direction within the electrode active material layer, wherein the two or more electrode current collectors include an upper electrode current collector adjacent a top surface of the electrode active material layer; and a lower electrode current collector adjacent a bottom surface of the electrode active material layer, wherein the electrode active material layer includes an internal electrode active material layer between the upper electrode current collector and the lower electrode current collector; and an external electrode active material layer outside of the upper electrode current collector and the lower electrode current collector, and wherein the two or more electrode current collectors include a porous structure.
Resumen de: US2025140921A1
A dicationic ionic liquid contains a cation having two moieties each containing a heteroatom having a positive formal charge, and a linking group bonding to each of the heteroatoms of the two moieties to link the two moieties, in which the linking group is represented by a formula: —CR1R2OCR3R4CR5R6OCR7R8—.(In the formula, R1 to R8 are each a hydrogen atom, a fluorine atom, or a monovalent organic group having 1 to 20 carbon atoms.)
Resumen de: US2025140914A1
One embodiment of the present invention provides a solid electrolyte which has an argyrodite crystal structure, and contains lithium, phosphorus, sulfur, element M, and a halogen element, wherein the element M is at least one selected from elements with an oxidation number of 1+ to 6+, and a substitution rate DS (%) of the element M represented by Relational Formula 1 is 0.1 to 1%.
Resumen de: US2025141043A1
The composite diaphragm for a zinc secondary battery, including: a base diaphragm and a conductive film for the zinc secondary battery, the conductive film being connected to one end of the base diaphragm. The conductive film includes a porous polymer film, and pores of the porous polymer film are filled with conductive compositions, the conductive compositions including 1-10 parts by weight of a conductive agent and 0.1-1 part by weight of an additive. The conductive agent includes at least one of graphite, conductive carbon black, acetylene black, or a graphene carbon nanotube; and the additive includes at least one of a tin powder, a tin dioxide powder, a bismuth powder, a bismuth oxide powder, an indium powder, an indium oxide powder, a lead powder, a lead oxide powder, a cadmium powder, or a cadmium oxide powder.
Resumen de: US2025141051A1
A secondary battery includes a positive plate, a negative plate, a porous separator, and a non-aqueous electrolyte. In the secondary battery, lithium metal deposits on the negative plate during charging, and lithium metal dissolves in the non-aqueous electrolyte during discharge. The secondary battery includes: a spacer interposed between at least one of electrode plates of the negative plate and the positive plate and the separator to form a space between the electrode plate and the separator; and a low porosity portion that has a smaller porosity than the separator and that is fitted into the separator in an area where the separator and the spacer overlap when viewed from a laminating direction of the separator and the electrode plate.
Resumen de: US2025141042A1
Described herein is a lithium-ion battery comprising a cathode current collector, a cathode, a paper separator having a surface coated with an anti-shorting layer, an anode, and an anode current collector, wherein the cathode current collector is in contact with the cathode, the cathode is in contact with the paper separator, the paper separator is in contact with the anode, and the anode is in contact with the anode current collector. The lithium-ion battery can be fabricated by printing a cathode ink onto a first side of a paper separator having a surface coated with Al2O3, printing an anode ink onto a second side of said paper separator, printing a cathode current collector ink on the cathode, and printing an anode current collector ink on the anode.
Resumen de: US2025141039A1
A venting system for a battery includes a venting material disposed proximate to each cell of a plurality of electrochemical cells of the battery, the venting material configured to allow materials ejected due to a thermal event to flow through the venting material. The system also includes a venting device disposed in a fixed position relative to the venting material and the plurality of cells, the venting device including a structure for each cell. The structure includes a wall surrounding an area corresponding to a respective cell and extending away from the respective cell, the wall defining a venting path configured to direct ejected materials away from the respective cell.
Resumen de: US2025141057A1
A conductive member includes a first connection body and a second connection body connected to the first connection body. The first connection body is configured to be clamped with an outer peripheral side of one cell of two adjacent battery cells. The second connection body is configured to be in contact with a pole of the other cell of the two adjacent battery cells. The conductive member is clamped with the outer peripheral side of the battery cell through the first connection body. The busbar is configured to clamp the conductive member with the outer peripheral side of the battery cell through the first connection body.
Resumen de: US2025141261A1
A surgical system including battery packs, a power subsystem and a controller is provided. The power subsystem is configured to connect at least two battery packs in parallel during a backup mode, disconnect the battery packs in a non-backup mode, and prevent each battery pack from charging one or more other battery packs during parallel operation. The controller is configured to individually charge each battery pack to a power capacity equal to or less than a predetermined power capacity, such as 100 Wh.
Resumen de: US2025141212A1
A protection circuit arrangement includes a substrate having a first surface and a second surface; a connector on the first surface and electrically connected to a battery cell; an overvoltage protection element on the second surface and electrically connected to the connector; and a fuse on the first surface and electrically connected to the overvoltage protection element.
Resumen de: US2025140806A1
A method for manufacturing a cathode active material for lithium secondary battery is provided, which includes a lithium metal composite oxide and a coating layer coating at least a part of one particle of the lithium metal composite oxide, the method including a coating step of bringing the lithium metal composite oxide into contact with a coating liquid for forming the coating layer using a coating device provided with a two-fluid nozzle, in which the lithium metal composite oxide satisfies (A), the coating step includes spraying each of the coating liquid and high-pressure airflow from the coating device, and the high-pressure airflow satisfies (B).
Resumen de: US2025140812A1
A positive electrode active material, a method of preparing the same, a positive electrode, and a rechargeable lithium battery including the same are disclosure. The positive electrode active material includes core particles including a layered lithium nickel-manganese-based composite oxide having a nickel content (e.g., amount) of greater than or equal to about 60 mol % based on 100 mol % of a total metal in the positive electrode active material excluding lithium, and a coating layer located on the surface of the core particles and containing Al, wherein an Al content (e.g., amount) of the coating layer is about 0.5 mol % to about 1.5 mol % based on 100 mol % of a total metal in the layered lithium nickel-manganese-based composite oxide excluding lithium, and the coating layer has a fiber shape (e.g., in a form of fibers, having a fibrous structure, etc.).
Resumen de: US2025140826A1
The present invention provides a positive electrode active material for a sodium secondary battery, including layered oxide particles containing at least sodium and a transition metal, and a coating layer located on the layered oxide particles, wherein the coating layer includes at least two compounds selected from compounds having crystal structures belonging to space groups P421c, Fd-3m, and Pnma, respectively.
Nº publicación: US2025140928A1 01/05/2025
Solicitante:
TOYOTA JIDOSHA KK [JP]
TOYOTA JIDOSHA KABUSHIKI KAISHA
Resumen de: US2025140928A1
The lithium ion battery includes a positive electrode, a negative electrode, and an electrolytic solution. The positive electrode includes a positive electrode mixture. The positive electrode mixture contains a positive electrode active material and active lithium. A mass fraction of the active lithium with respect to a total of the positive electrode active material and the active lithium is 0.25% or more. The electrolytic solution contains a solvent and a lithium salt. The solvent contains a carboxylic acid ester in a volume fraction of 40% or more.
BOPI
Sede Electrónica
