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1659
resultados
Última actualización
18/12/2025 [07:24:00]
Resultados 1225 a 1250 de 1659
Resumen de: WO2025249859A1
Disclosed is a method for manufacturing an electrode assembly for use in a battery, the method comprising receiving an electrode stack comprising a plurality of electrode sheets stacked in a stacking direction, the electrode stack having a first side, a second side opposite to the first side and a third side extending between the first and second sides, the first and second sides extending perpendicular or substantially perpendicular to the stacking direction; arranging a first adhesive tape on the first and third sides of the electrode stack such that the first adhesive tape covers the first side at least in part and a portion of the third side abutting the first side; arranging a second adhesive tape on the second and third sides of the electrode stack such that the second adhesive tape covers the second side at least in part and a portion of the third side abutting the second side; and attaching the first adhesive tape and the second adhesive tape to each other for securing the electrode sheets in the electrode stack.
Resumen de: WO2025249147A1
A non-aqueous electrolyte secondary battery according to the present disclosure comprises: an electrode body in which a first electrode and a second electrode, which are belt-shaped and have different polarities from each other, are wound along the longitudinal direction with a separator interposed therebetween; and an exterior body that accommodates the electrode body. The first electrode has a current collector and a mixture layer formed on the surface of the current collector. On the surface of the first electrode, a current collector exposed part of the current collector is formed so as to be in contact with only one end part of both end parts in the transverse direction of the first electrode. A protective tape is adhered so as to cover the current collector exposed part, and a linear recess part extending in the longitudinal direction of the first electrode is formed on the surface of the protective tape.
Resumen de: WO2025249299A1
Disclosed are carbon nanotubes which satisfy the following requirements (1) to (3) and include multi-walled carbon nanotubes. (1) If the maximum peak intensity within the range of 1,560-1,600 cm-1 is defined as G and the maximum peak intensity within the range of 1,310-1,350 cm-1 in the Raman spectrum is defined as D, the G/D ratio is 0.5 to 3.0 inclusive. (2) The wetting index represented by formula (I) is 10 or less. Formula (I): (wetting index) = (X/Y) (In formula (I), Y represents the mass (g) of the carbon nanotubes, and X represents the maximum mass (g) of N-methyl-2-pyrrolidone absorbed by the carbon nanotubes when N-methyl-2-pyrrolidone is dropped onto Y (g) of the carbon nanotubes in an environment at 25°C.) (3) The aluminum content is 3,000 ppm or less.
Resumen de: WO2025249103A1
This power storage device includes: a terminal plate (21) that is positioned above an electrode body when a bottom section of a case (20) is treated as the lower end, and has a body section (21b) electrically connected to a first electrode of the electrode body, and a fragile section (21c) positioned between the body section (21b) and a connecting section (21a) to the inside thereof; a sealing plate (22) that is positioned above the terminal plate (21) and is electrically connected to the connecting section (21a); and a gasket (30) that is sandwiched between an opening of the case (20) and the sealing plate (22). The gasket (30) includes an annular upper portion (31), and a lower portion (32) that is provided below the upper portion (31) and has a retention section (33) contacting a lower surface of the body section (21b) of the terminal plate (21). The distance in the radial direction between the fragile section (21c) and the retention section (33) is smaller than the distance in the radial direction between the fragile section (21c) and the outermost periphery of the body section (21b).
Resumen de: US2025372629A1
Methods for forming dry composite material for an energy storage device electrode are provided. The method may comprise forming a slurry by mixing a solvent, a silicon active material, a carbon active material, and a carbon additive; and forming the dry composite material comprising the silicon active material, the carbon active material, and the carbon additive by removing the solvent. The carbon additive, silicon active material and carbon active material are substantially homogeneously dispersed in the dry composite material. The dry composite material may be used to form a dry electrode film in dry fabrication processes.
Resumen de: US2025372647A1
The present disclosure is related to a positive electrode active material for lithium secondary batteries, a method for preparing the positive electrode active material, and a lithium secondary battery including the positive electrode active material. The positive electrode active material for lithium secondary batteries includes an overlithiated layered oxide (OLO), and the overlithiated layered oxide includes primary particles having a size in a range of 300 nm to 10 μm in an amount ranging from 50 to 100% by volume with respect to the total overlithiated layered oxide.
Resumen de: US2025372618A1
An electrode material for a sodium-ion battery includes a mixed-phase structure of sodium nickel-manganese oxide associated with sodium selenate, wherein the sodium nickel-manganese oxide has a general formula of NaxNiyMnzO2, wherein 0.3<x<0.95, 0<y<0.5, 0.5<z<1, and y+z=1. A method for preparing the electrode material and use of the electrode material in a sodium-ion battery are also addressed.
Resumen de: US2025372761A1
An energy storage system includes a battery pack, and a plurality of battery modules arranged within the battery pack. Each of the plurality of battery modules includes a battery module enclosure, a plurality of battery cells arranged within the battery module enclosure, and a plurality of cold plates arranged within each of the plurality of battery modules. The plurality of battery cells is arranged in a plurality of layers, and at least one of the plurality of cold plates is arranged adjacent to one of a bottom side of one of the plurality of layers, and at least another of the plurality of cold plates is arranged adjacent to a top side of the one of the plurality of layers.
Resumen de: US2025372735A1
Proxy broadcasting techniques for a wireless battery management system can improve communication performance by designating a subset of clusters to serve as proxy broadcasters for another subset of clusters that are experiencing issues with reliably receiving control data from network managers. The techniques can include having two network managers broadcasting the control data in specified portions of a timeslot. The designated proxy broadcasters can receive the control data in a first portion of a timeslot and transmit the received control data to bad clusters in a second portion of the same timeslot.
Resumen de: US2025372695A1
A battery component and methods of forming a battery component are presented. The battery component may include a negative electrode assembly, a positive electrode assembly, and a solid electrolyte membrane layered between the negative electrode assembly and the positive electrode assembly. The solid electrolyte membrane has a binder matrix containing sulfide-based solid electrolyte particles with plastic crystal electrolyte particles occupying pores between the sulfide-based solid electrolyte particles.
Resumen de: WO2025249821A1
The present invention may provide an electrode assembly in which a positive electrode, a negative electrode, and a separator interposed therebetween are wound, wherein at least one of the positive electrode and the negative electrode includes an uncoated portion at a long side end portion, a winding turn portion of the uncoated portion is provided at one side end portion of the electrode assembly, and the winding turn portion includes a bending region including a plurality of uncoated portion layers configured to be bent by pressure to form a bent surface.
Resumen de: WO2025249758A1
According to an embodiment disclosed in the present document, a signal processing device may comprise: a main control unit; an auxiliary control unit electrically connected to the main control unit; and an end device electrically connected to the auxiliary control unit, wherein, when power is supplied, the main control unit may transmit a wake-up signal to the auxiliary control unit, and the auxiliary control unit may bypass the wake-up signal to be transmitted to the end device.
Resumen de: WO2025249756A1
A chute for supplying powder in a secondary battery manufacturing process according to one embodiment of the present invention comprises: a main body including an inlet through which the powder is introduced, an outlet through which the powder is discharged, and a base plate formed therebetween; and a plurality of heating lines formed in the main body, wherein each heating line includes a first portion extending in the longitudinal direction of the main body, a second portion extending parallel to the outlet, and a third portion extending in the longitudinal direction of the main body and spaced apart from the first portion.
Resumen de: WO2025249755A1
An apparatus for manufacturing an electrode, according to an embodiment of the present invention, comprises: a plurality of calendering rolls arranged at predetermined intervals to sequentially calender an electrode sheet; and a plurality of housings that individually support the respective rotational axes of the plurality of calendering rolls, wherein an extension length of at least one housing among the plurality of housings in a traveling direction of the electrode sheet may be different from the extension length of the remaining housings.
Resumen de: WO2025249498A1
Problem To provide: an electroconductive-material-containing dispersion useful in a variety of batteries such as lithium-ion batteries, but particularly semi-solid-state batteries such as clay batteries; an electrode slurry; and an electrode and a battery that use the dispersion and the slurry. Solution Provided is an electroconductive-material-containing dispersion containing at least (i) an electroconductive material, (ii) a dispersant, (iii) an electrolyte, and (iv) a dispersion medium.
Resumen de: WO2025249300A1
A coated active material 100 according to the present disclosure comprises an active material 110 that contains a transition metal, a coating layer 120 that contains a first solid electrolyte and covers at least a portion of the surface of the active material 100, a first modified layer 111 that is present between the active material 100 and the coating layer 120, and a second modified layer 112 that is present between the first modified layer 111 and the coating layer 120. The first modified layer 111 contains the transition metal and has a crystal structure belonging to a space group different from that of the crystal structure of the active material 100. The second modified layer 112 contains the transition metal and has a crystal structure belonging to a space group different from those of the crystal structure of the active material 110 and the crystal structure of the first modified layer 111.
Resumen de: WO2025249234A1
A positive electrode active material contained in this non-aqueous electrolyte secondary battery has an O3 structure and is represented by the compositional formula LixNayNiaMnbMe1-a-bOz, where Me is at least one element selected from the group consisting of main-group elements and transition metal elements other than Li, Na, Ni, and Mn, 0.8≤x≤1.15, 0
Resumen de: WO2025249059A1
This method for manufacturing an electric power storage module comprises: a step (S101) for bonding a detection line (60) to a surface (15b) of a collector (15); a step (S102) for disposing a seal member (71) on the surface (15b) and the detection line (60); and a step (S103, S104) for bonding the seal member (71) to the surface (15b) and the detection line (60). In the step (S103), the seal member (71) is bonded by heating and melting the seal member (71) in a first region (R1) of the seal member (71) that overlaps the detection line (60) and the periphery of the detection line (60). In the step (S104), the seal member (71) is bonded by heating and melting the seal member (71) in a second region (R2) different from the first region (R1).
Resumen de: WO2025249056A1
Problem To provide a powder that comprises a lithium-ion conductive substance functioning as a protective material for a positive electrode active material, that has excellent withstand voltage characteristics, and that exhibits excellent uniformity of adhesion to positive electrode active material particles. Solution This fluoride powder contains, as the main ingredient, a lithium-containing metal fluoride including lithium (Li), a metal element M, and fluorine (F), and has a BET diameter d of not more than 300 nm as calculated using formula (1). (1): d=6×103/(ρ×S) Here, d represents the BET diameter (nm), ρ represents the true density (g/cm3) of the powder, and S represents the BET specific surface area (m2/g) of the powder.
Resumen de: US2025372739A1
A method of extracting lithium from black mass produced by battery recycling includes analyzing the black mass to determine a type of lithium entrapment, quantifying a carbon content of the black mass, adding oxidizing or reducing reagents based on the type of lithium entrapment, monitoring completion of oxidation or reduction with at least one oxygen sensor providing a delta lambda value, and extracting lithium from the black mass with a solvent.
Resumen de: US2025372741A1
Disclosed are approaches for recycling LIBs where lithium is recovered before the other node metals in order to increase the amount of lithium recovered. For such approaches, the other node metals need not be further refined or recovered and, despite the small loss of these other node metals as impurities in the first-recovered lithium, the available alternative dispositions for these other node metals—such as in the form of multi-metal-oxides (MMO)—can render the recovery of lithium before the other node metals to be advantageous. Several such approaches may feature nitration, roasting, lithium trapping, and/or other innovative features to facilitate greater and purer recoveries of the target LIB components.
Resumen de: US2025372612A1
In an embodiment, a Li-ion battery electrode comprises a conductive interlayer arranged between a current collector and an electrode active material layer. The conductive interlayer comprises first conductive additives and a first polymer binder, and the electrode active material layer comprises a plurality of active material particles mixed with a second polymer binder (which may be the same as or different from the first polymer binder) and second conductive additives (which may be the same as or different from the first conductive additives). In a further embodiment, the Li-ion battery electrode may be fabricated via application of successive slurry formulations onto the current collector, with the resultant product then being calendared (or densified).
Resumen de: US2025372765A1
A traction battery pack assembly includes a cell stack within an interior of an enclosure. The cell stack includes a plurality of battery cells and a plurality of dividers disposed along a cell stack axis. The dividers extend outward from the cell stack axis further than the battery cells to provide a portion of at least one immersion coolant channel.
Resumen de: US2025372700A1
A solid-state battery having an enveloped electrode assembly includes an electroactive layer having a first major surface and side surfaces that are encapsulated within a Li ion conductive glassy medium. The encapsulated electroactive layer may be in compression.
Nº publicación: US2025372736A1 04/12/2025
Solicitante:
GOOGLE LLC [US]
Google LLC
Resumen de: US2025372736A1
This document describes systems and techniques for a self-destructive code device for a rechargeable battery device. For example, a system comprises a rechargeable battery device certified for use with an electronic device. An authentication code is associated with the rechargeable battery device to validate that the rechargeable battery device is authenticated for use with the electronic device. A self-destructive code device is attachable to the rechargeable battery device, the self-destructive code device being configured to present the authentication code and cause the authentication code to become unusable after that rechargeable battery device is deployed for use with the electronic device.
BOPI
Sede Electrónica
