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1344
resultados
Última actualización
09/09/2025 [07:15:00]
Resultados 375 a 400 de 1344
Resumen de: WO2025182753A1
Problem The present invention provides: a negative electrode for an alkaline secondary battery with which it is possible to achieve both improvement of low-temperature discharge characteristics and suppression of the occurrence of an internal short circuit; and an alkaline secondary battery which comprises the negative electrode. Solution A battery 2 is provided with an electrode group 22 that is composed of a positive electrode 24 and a negative electrode 26 that are overlapped with each other with a separator 28 being interposed therebetween. The negative electrode 26 includes a negative electrode core body 40 and a negative electrode mixture 42 that is press-bonded to the negative electrode core body 40. The negative electrode mixture 42 contains a hydrogen storage alloy powder which is an aggregate of hydrogen storage alloy particles. The hydrogen storage alloy particles include first hydrogen storage alloy particles and second hydrogen storage alloy particles. The volume average particle diameter of the second hydrogen storage alloy particles is not less than three times the volume average particle diameter of the first hydrogen storage alloy particles, and the ratio of the first hydrogen storage alloy particles to the total of the first hydrogen storage alloy particles and the second hydrogen storage alloy particles is 80 wt% to 95 wt% inclusive.
Resumen de: WO2025182726A1
Provided are a solid electrolyte (19) capable of improving conductivity, an ion conductor (10), a sheet (15), and a power storage device (11). The solid electrolyte has a garnet-type crystal structure containing Li, La, Zr, and O, wherein the sulfur mass concentration measured by carbon/sulfur analysis using a combustion infrared absorption method is at least 0.01%, and the sulfur abundance obtained from a peak intensity at a binding energy of 160-174 eV in spectra obtained by X-ray photoelectron spectroscopy is at most 30 times the Li-O-derived oxygen abundance obtained from a peak intensity at a binding energy of 528.5 eV. The ion conductor includes a solid electrolyte and an electrolytic solution obtained by dissolving a lithium salt in a non-aqueous solvent. The sheet includes an ion conductor and a binder for binding a solid electrolyte. The power storage device includes a solid electrolyte.
Resumen de: WO2025180096A1
The present application relates to the technical field of secondary batteries, and provides a secondary battery and an electronic device. A positive electrode in the secondary battery provided in the present application comprises lithium cobalt oxide having a lamellar rock salt type structure, the lithium cobalt oxide has a space group R-3m, and the lithium cobalt oxide comprises an Mg element, a Ni element and an Al element, and can synergize with a nitrile compound having a suitable content in an electrolyte, thereby improving the stability of the positive electrode material. The present application can improve the floating charge performance of the secondary battery and reduce the impedance, and thus the secondary battery has good safety and reliability.
Resumen de: WO2025180048A1
An information acquisition assembly (10) of a battery cell (20), a battery (100) and an electric device (1000). The information acquisition assembly (10) of the battery cell (20) comprises: an information sampling structure (1) and a mounting base film (2); the information sampling structure (1) is suitable for being connected to the battery cell (20) to acquire information parameters of the battery cell (20); the mounting base film (2) comprises a base film material and a thermosetting adhesive layer; the thermosetting adhesive layer and the base film material are stacked; and the information sampling structure (1) is arranged on the thermosetting adhesive layer.
Resumen de: WO2025179799A1
A tab flattening device, comprising a driving member and tab flattening structures (200). Each tab flattening structure (200) comprises a mounting body (210), a flattening head (220), and edge restraint members (230). The flatting head (220) is rotatably arranged on the mounting body (210) and protrudes from one side of the mounting body (210). The outer surface of the flattening head (220) forms a flattening surface (221) capable of coming into contact with surfaces (252) of tabs. The edge restraint members (230) are arranged on the periphery of the flattening head (220), and protrude from one side of the mounting body (210) and form restraint surfaces (231) capable of coming into contact with edge end portions (251) of the tabs (25). While flattening the tabs (25), the edge end portions (251) of the tabs (25) can be restrained, so that the flattened tabs (25) are confined within a safe range, thereby reducing the likelihood of burrs of the tabs (25) coming into contact with other parts of a battery (100), and thus improving the reliability of the battery (100).
Resumen de: WO2025179789A1
The present application provides a battery cell, a battery, and an electric device. The battery cell comprises a casing, a valve body, and a movable valve; the casing has an accommodating cavity and a first wall; a first through hole is formed in the first wall, and is communicated with the accommodating cavity and the exterior of the battery cell; the valve body is connected to the first wall; a second through hole is formed in the valve body, and is communicated with the accommodating cavity; the movable valve is movably connected to the valve body, and is configured to be capable of switching between a blocked state and a connected state with respect to the valve body; in the blocked state, the first through hole and the second through hole are closed; and in the connected state, the second through hole is communicated with the exterior of the battery cell through the first through hole. According to the battery cell provided by the present application, control of the humidity in the accommodating cavity during manufacturing of the battery cell is facilitated, and the reliability of the battery cell is improved.
Resumen de: WO2025183258A1
The present disclosure relates to a device for diagnosing a battery and a method therefor. The device for diagnosing a battery, according to one embodiment, can input, into a diagnosis model, a first impedance value measured while an alternating current signal of a first frequency is applied to a first battery cell to be diagnosed, and determine, on the basis of state data that is output from the diagnosis model, whether the first battery cell is defective. The diagnosis model can comprise: a first artificial neural network for predicting, on the basis of the first impedance value, a second impedance value while an alternating current signal of a second frequency is applied to the first battery cell; and a second artificial neural network for outputting, on the basis of the second impedance value, the state data indicating whether the first battery cell is defective.
Resumen de: WO2025183257A1
The present invention relates to an all-solid-state battery and, more specifically, to an all-solid-state battery comprising: a plurality of unit structures; and an elastic pad disposed between adjacent unit structures among the plurality of unit structures. Each of the plurality of unit structures includes a first bi-cell and a second bi-cell that are adjacent to each other, the first bi-cell includes a lithium deposition-type first anode layer, and the second bi-cell includes a lithium-impregnated second anode layer.
Resumen de: WO2025184237A1
Circuits and methods are provided that more effectively and efficiently implement a parallel charging circuit. First and second charging circuits are configured in parallel between a power supply and a load. A controller circuit monitors temperature signals received from the first and second charging circuits and controls the relative charging currents sourced by each of the first and second charging circuits to maintain temperature balance between them, and to ensure that the first and second charging circuits reach their respective maximum thermal temperatures at the same time.
Resumen de: WO2025183261A1
The present invention relates to an all-solid-state battery. More specifically, the all-solid-state battery comprises a positive electrode layer, a negative electrode layer, and a solid electrolyte layer interposed between the positive electrode layer and the negative electrode layer, the solid electrolyte layer including: a first solid electrolyte layer adjacent to the positive electrode layer and having a first width and a first thickness; a second solid electrolyte layer adjacent to the negative electrode layer and having a second width and a second thickness; and an interlayer interposed between the first solid electrolyte layer and the second solid electrolyte layer and having a third width and a third thickness.
Resumen de: WO2025184200A1
A rechargeable, proton-insertion battery can include a cathode, an anode, a separator, and an electrolyte. The cathode includes an active material that includes an additive. The additive can include compound(s) forms of elements such as titanium, nickel, bismuth, or combinations thereof. The anode can comprise one or more anode additives that can include insoluble hydroxides, zincates, oxides such as calcium hydroxide, calcium zincate, bismuth oxide, zinc oxide, or combinations thereof.
Resumen de: WO2025182714A1
Provided is a non-aqueous electrolyte secondary battery provided with an electrode body in which the flatness of an end face is improved. This non-aqueous electrolyte secondary battery comprises: an electrode body in which a first electrode and a second electrode having different polarities from each other are wound via a separator; a non-aqueous electrolyte; and an exterior can that accommodates the electrode body and the non-aqueous electrolyte. The first electrode has a first core body and a first mixture layer formed on the surface of the first core body. A first core body exposed part in which the first core body is exposed is disposed at one end part of the electrode body in a winding axis direction. The first core body exposed part has a recessed part thinner than the first core body in a region where the first mixture layer is formed. The position of the recessed part changes from the end part side of the first mixture layer to the end part side of the first core body from the winding outer side to the winding inner side along the winding direction of the electrode body.
Resumen de: WO2025182754A1
This composite electrolyte contains an inorganic solid electrolyte, a polymer, and an alkali metal salt. The polymer has a structure represented by formula (1), and the alkali metal salt is included in an amount of 5-250 mol% with respect to the total amount of ester groups in the polymer. In formula (1), R represents a hydrogen atom or an alkyl group. X and Y are the same or different and represent a hydrogen atom, a hydroxyl group, or an alkyl group. n represents an integer of 1 or more, and m represents an integer of 0-10.
Resumen de: WO2025182727A1
Provided are a powder (19) capable of reducing a change in the crystal structure thereof, an ion conductor (10), a sheet (12), and a power storage device (11). The powder is an oxide-based solid electrolyte having a garnet-type crystal structure, and satisfies an inequality y≤0.04x+0.05 where x represents the specific surface area (m2/g) and y represents the half-value width (°) of a peak regarding a surface index (042) in a powder X-ray diffraction pattern. The ion conductor contains the powder and an electrolytic solution (23) in which a lithium salt is dissolved in a solvent. The sheet includes the ion conductor and a binder for binding the solid electrolyte. The power storage device includes the powder.
Resumen de: WO2025182675A1
A first voltage detection device (300) is provided with a first holding body (310) and a plurality of first voltage detection lines (330) held by the first holding body (310). A portion, of the first holding body (310), overlapping the plurality of first voltage detection lines (330) that are bundled together has a heat resistance that is higher than the heat resistance of at least another portion of the first holding body (310) different from said portion.
Resumen de: WO2025183193A1
A positive electrode mixture including: a conductivity aid that is a carbon material; a sulfur-based active material; and a solid electrolyte, wherein the variation in luminance intensity in the same field of view is 0.250 or less in a secondary electron image from a scanning electron microscope, and at least part of the solid electrolyte is crystalline with the crystallite diameter thereof being 90 nm or less.
Resumen de: WO2025183179A1
This solid electrolyte has a first region and a second region having a composition different from that of the first region. The first region contains a compound containing lithium, zirconium, oxygen, halogen, and sulfur. The second region has a composition ratio of sulfur and oxygen of 80 wt% or more when the composition is analyzed by scanning electron microscopy-energy dispersive X-ray spectroscopy (SEM-EDX) analysis. When this solid electrolyte is X-ray-diffraction-measured using Cu-Kα rays, a first diffraction peak is detected in a diffraction angle range of 28.2 ± 0.4°.
Resumen de: WO2025183138A1
A power storage module (10) comprises at least one power storage device (20), a case (40) that accommodates the at least one power storage device (20), a cooling liquid (50) in which the at least one power storage device (20) is immersed inside the case (40), and a switching device (60) for switching between a state in which a gas that is inside the case (40) is discharged from the case 40 and a state in which the cooling liquid (50) is collected from the gas.
Resumen de: WO2025183086A1
Disclosed is a positive electrode active material for sodium ion batteries, the positive electrode active material being a sulfide. The sulfide is a sulfide (i) represented by formula NaαiFe1-xiTMi xiS4 (in the formula, αi is 0 to 6 inclusive, xi is 0 to 0.6 inclusive, and TMi is a transition metal) or a sulfide (ii) represented by formula NaαiiFe2-xiiTMii xiiS6 (in the formula, αii is 0 to 8 inclusive, xii is 0 to 0.6 inclusive, and TMii is a transition metal). Consequently, the present invention provides a novel positive electrode active material that is useful for a sodium ion battery.
Resumen de: WO2025183200A1
This positive electrode mixture comprises: a conductive auxiliary agent which is a carbon material; a sulfur-based active material; and a solid electrolyte, wherein in elemental analysis using energy dispersive X-ray spectroscopy of an electron microscope image, the mapping overlap rate between carbon and phosphorus is 60% or more, and in powder X-ray diffraction using CuKα rays, there is a diffraction peak A at 2θ=25.7±0.5° and a diffraction peak B at 2θ=30.2±0.5°, and the half-value width of diffraction peak A is 0.190 or less.
Resumen de: WO2025183203A1
The present invention relates to coated particles each comprising a sulfide-based particle having a surface coated with a fluorine-containing organic compound. The fluorine-containing organic compound contains a structural unit (1) that is based on a specific monomer (1) and a structural unit (2) that is based on a specific monomer (2). The average particle diameter of the coated particles is 10 nm to 10 μm.
Resumen de: WO2025182338A1
The present invention is characterized in that: a positive electrode mixture layer has a first positive electrode mixture layer that is aligned with a positive electrode current collector exposure part in the longitudinal direction of a positive electrode (11), and a second positive electrode mixture layer that is adjacent to the positive electrode current collector exposure part and the first positive electrode mixture layer in the width direction of the positive electrode; a protective member (36) covers the positive electrode current collector exposure part and a portion of the positive electrode mixture layer, the portion being adjacent to the positive electrode current collector exposure part; a separator (13) has a base material layer (50) and a filler layer (52); the filler layer (52) includes resin particles (54) and has projected parts (56) that are formed by the resin particles (54); and in a surface view of the filler layer (52), the ratio of the area of the projected parts (56) to the area of the surface of the filler layer (52) is 12% or more and 20% or less.
Resumen de: WO2025182340A1
Disclosed is a nonaqueous electrolyte solution which contains: a compound represented by formula (1), wherein R is a direct bond, an alkylene group having 1-4 carbon atoms, or a halogenated alkylene group having 1-4 carbon atoms; LiBF4; a nonaqueous solvent; and an electrolyte. The electrolyte is a compound that is different from the compound represented by formula (1) and LiBF4. The content of LiBF4 is 3.0 mass% or less based on the total amount of the nonaqueous electrolyte solution.
Resumen de: WO2025182301A1
Disclosed is a nonaqueous electrolyte solution for a secondary battery, the nonaqueous electrolyte solution containing a hexafluorophosphate, a compound represented by formula (1), and a nonaqueous solvent. (1): FSO2NHR1 In formula (1), R1 represents a hydrogen atom or an optionally substituted hydrocarbon group having 1 to 18 carbon atoms.
Nº publicación: WO2025182450A1 04/09/2025
Solicitante:
NITERRA CO LTD [JP]
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Resumen de: WO2025182450A1
The present invention provides: a solid electrolyte (19) with which it is possible to reduce the interfacial resistance; an ion conductor (10); a sheet (15); and a power storage device (11). The solid electrolyte has a garnet-type crystal structure that contains Li, La, Zr, and O, and when the spectrum emitted from the surface of the solid electrolyte is measured by X-ray photoelectron spectroscopy, the value obtained by dividing the abundance ratio of C by the sum of the abundance ratio of La and the abundance ratio of Zr is less than 3.1. The ion conductor includes the solid electrolyte and an electrolyte solution (23) which is obtained by dissolving a lithium salt in a nonaqueous solvent. The sheet includes the ion conductor and a binder for binding the solid electrolyte. The power storage device includes the solid electrolyte.
BOPI
Sede Electrónica
