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1797
resultados
Última actualización
13/10/2025 [15:43:00]
Resultados 925 a 950 de 1797
Resumen de: US2025309394A1
The present disclosure addresses the problem of providing an all-solid-state battery capable of suppressing damage to the ends of the positive electrode layer under compressive stress due to compressive input, while ensuring sufficient insulation between the positive electrode and the negative electrode. An all-solid-state battery according to one embodiment of the present disclosure includes an electrode stack 1 including a plurality of electrode bodies stacked. Positive electrode insulating layers 8a, 8b at the ends of the positive electrode current collector 4, protruding in the direction Vd (plane direction) perpendicular to the stacking direction. An insulating layer 20 and a heat transfer layer 30 are provided in this order at the ends of the electrode stack 1 in the direction Vd perpendicular to the stacking direction Ld. The interface 40 between the insulating layer 20 and the heat transfer layer 30 includes a concavo-convex shape portion.
Resumen de: US2025309393A1
A device for enabling the reuse of a complete battery pack for electric vehicles (EV) is disclosed. The device allows reuse of a battery pack at a significantly lower cost than alternative methods that require the battery pack to be opened, batteries to be taken out and installed in a new pack with a new battery monitoring system (BMS), and undergoing certification as a new system. The disclosed device includes a controller having a software program operating therein and which is electrically coupled to a battery pack and provides electrical input and output signals to the BMS of the EV battery, which relate to optimal operating parameters of the battery pack including depth of discharge (DoD), depth of charge (DoC), charge rate, and temperature. The controller enables reuse of the complete battery pack without reopening and mimics electrical signaling compared to a car or other electric vehicles.
Resumen de: US2025309388A1
In a peeling method for a positive electrode current collector and a positive electrode mixture material for peeling the positive electrode mixture material from the positive electrode current collector, induction heating is effected in the positive electrode current collector to dissolve or vaporize a binder of the positive electrode mixture material bonded to the positive electrode current collector.
Resumen de: US2025309386A1
This disclosure relates to systems and methods for hydrogen sulfide mitigation. A battery cell or plurality of battery cells in a battery pack with a sulfur-containing lithium-based rechargeable battery component is presented. A monolith hydrolyzes hydrogen sulfide gas, precipitated from moisture exposure to the sulfur-based cathode, into sulfur dioxide and water, and releases the sulfur dioxide and water external to the battery cell.
Resumen de: US2025309389A1
Provided is a method of manufacturing a regenerated positive electrode in a used lithium ion secondary battery including a laminate having a positive electrode, any one of a separator and a solid electrolyte layer, and a negative electrode, the method of manufacturing a regenerated positive electrode including extracting the positive electrode from the laminate, pressing the extracted positive electrode, and doping the pressed positive electrode with lithium ions, the doping of the lithium ions being performed by a discharge using a lithium electrode as a counter electrode in an electrolyte.
Resumen de: WO2025200226A1
A battery (100) and an electric device. The battery (100) comprises a case (10) and battery cells (20). The case (10) comprises: a case body (13); at least two limiting beams (14), wherein the at least two limiting beams (14) and the case body (13) define an accommodating space (16), the limiting beams (14) each comprise a first beam side surface (141) and a second beam side surface (142), the second beam side surface (142) is configured to be a vertical plane for abutting against the largest surfaces of the battery cells (20), and the second beam side surface (142) and at least part of the first beam side surface (141) are arranged at an included angle; and fixing members (15) connected between the limiting beams (14) in a first direction. The battery cells (20) in the accommodating space (16) are constrained by means of the limiting beams (14), the first beam side surfaces (141) abut against the largest surfaces of the battery cells (20), and at least parts of the first beam side surfaces (141) are inclined toward the second beam side surfaces (142), such that the limiting beams (14) provide stable support to constrain expansion on the battery cells (20); and in addition, the fixing members (15) can limit the limiting beams (14) in the first direction, thereby reducing the probability of tilting of the limiting beams (14) under the expansion deformation of the battery cells (20), and further improving the expansion constraint force on the battery cells (20).
Resumen de: WO2025203996A1
This all-solid-state battery has, in the following order, a positive electrode active material layer (10), a solid electrolyte layer (20), and a negative electrode active material layer (30), and further has an insulating member (40) that is in contact with the outer surface of the positive electrode active material layer (10) or an outer peripheral part of the surface of the positive electrode active material layer (10) on the solid electrolyte layer (20) side, wherein the surface of the insulating member (40) on the negative electrode active material layer (30) side has an arithmetic average roughness Ra of 0.10 μm to 10.0 μm, as measured in accordance with JIS B0601:2013.
Resumen de: WO2025205191A1
Provided is a ferritic stainless steel foil in which an increase in interface resistance when an oxide film is made thick is sufficiently suppressed. The ferritic stainless steel foil according to the present disclosure has a chemical composition containing, in mass%, C: over 0% to 0.050%, Si: over 0% to 1.00%, Mn: over 0 % to 1.00%, P: over 0% to 0.050%, S: over 0% to 0.030%, N: over 0% to 0.050%, Mo: 0% to 1.00%, Cr: 14.00% to 18.00%, Ni: 0% to 0.60%, Ti: Timin to 1.00%, Nb: 0% to 1.00%, and Zr: 0% to 0.80%, with the balance being Fe and impurities. The chemical composition satisfies formula (1). Formula (1): (Mo+Cr)/Ti≤80. Timin is defined as follows. When X defined by formula (2) is 0.10 or more: Timin = X. When X defined by formula (2) is less than 0.10: Timin = 0.10. Formula (2): X = 16 × (C + N)
Resumen de: WO2025206491A1
The present invention relates to a positive electrode active material comprising an oyster shell for a lithium secondary battery and a preparing method therefor and, specifically, to a positive electrode active material for a lithium secondary battery, comprising a positive electrode active material and an oyster shell coating layer on the surface of the positive electrode active material, and to a preparing method for a positive electrode active material for a lithium secondary battery, the method comprising the steps of: mixing a positive electrode active material and an oyster shell powder; and heat-treating the mixture. The positive electrode active material comprising the oyster shell was observed to show a reduced internal resistance due to the suppressed electrolyte decomposition at the interface of a positive electrode, and Ca contained in the oyster shell was found to play an important role in removing F- species.
Resumen de: WO2025206074A1
This non-aqueous electrolyte contains: at least one carbonate compound selected from the group consisting of a compound represented by the following formula (I-1), a compound represented by the following formula (I-2), and a compound represented by the following formula (I-3); and at least one sulfonyl compound selected from the group consisting of a compound represented by the following formula (II) and a compound represented by the following formula (III). The definition of each group in each formula is as described in the description.
Resumen de: WO2025204384A1
The present disclosure addresses the problem of providing a solid battery capable of suppressing the occurrence of abnormal electrodeposition and having favorable battery performance. One embodiment of the present invention that solves the problem is a solid-state battery having a structure in which a negative electrode layer, a solid electrolyte layer, and a positive electrode layer are laminated in that order, wherein: the solid electrolyte layer includes a first solid electrolyte layer disposed on the negative electrode layer side, and a second solid electrolyte layer disposed adjacent to the first solid electrolyte layer; and the density of the first solid electrolyte layer is higher than the density of the second solid electrolyte layer.
Resumen de: WO2025204922A1
This silica aerogel powder used for a heat insulation material for a battery pack has a specific surface area of 550 m2/g or greater as measured on the basis of an adsorption isotherm obtained if the silica aerogel powder is measured using an adsorbed nitrogen amount measurement method, has a pore volume of 3.5-5.0 mL/g when the relative pressure is 0.99, and satisfies the following conditions (i) and (ii), where the pore volume with the relative pressure being 0.93 is a mL/g, the pore volume with the relative pressure being 0.965 is b mL/g, and the pore volume with the relative pressure being 0.99 is c mL/g. (i): 0 ≤ (a/c×100) ≤ 50, (ii): 50 ≤ (b/c×100) < 100
Resumen de: US2025309360A1
The present disclosure provides a method for producing a laminated battery whereby the laminated battery units on the outermost sides are resistant to cracking, a laminated battery that can be produced by the method, and a battery pack comprising the laminated battery. The method of the disclosure for producing a laminated battery 10 comprises the following steps: (a) providing a plurality of laminated battery units 100 each comprising a first current collector layer 110, a first electrode active material layer 120, a solid electrolyte layer 130, a second electrode active material layer 140 and a second current collector layer 150 in that order, and (b) stacking together the plurality of laminated battery units so that at least at a first end face of the laminated battery, the end faces of the outermost laminated battery units are situated further inward than the end faces of the other adjacent laminated battery units.
Resumen de: US2025309361A1
Provided is a solid-state battery capable of allowing an intermediate layer interposed between a negative electrode layer and a solid electrolyte layer to improve in bondability with another layer. A solid-state battery having a structure in which a negative electrode layer, a solid electrolyte layer, and a positive electrode layer are laminated in this order, includes an intermediate layer interposed between the negative electrode layer and the solid electrolyte layer, and the intermediate layer has a porosity of 46% or less.
Resumen de: US2025309355A1
A nonaqueous electrolyte solution includes a nonaqueous solvent and a lithium salt dissolved in a specific amount in the nonaqueous solvent. The nonaqueous electrolyte solution contains a specific amount of fluoroethylene carbonate, ethyl propionate, 1,2,3-tris(2-cyanoethoxy)propane, and a nitrogen-containing lithium salt. Based on a mass of the nonaqueous electrolyte solution, an aggregate mass percentage of the fluoroethylene carbonate and the 1,2,3-tris(2-cyanoethoxy)propane in the nonaqueous electrolyte solution is set to fall within a specific range. An aggregate mass percentage of the ethyl propionate and the nitrogen-containing lithium salt is set to fall within a specific range. This application can alleviate the volume resistance of a positive electrode and expansion of a negative electrode of the lithium-ion battery, and make the battery exhibit good high-temperature cycling performance and low-temperature direct-current resistance performance.
Resumen de: US2025309352A1
A lithium-ion secondary battery includes a positive electrode, a negative electrode, and an electrolytic solution. The electrolytic solution includes a nitrile compound, and a fluorinated alcohol represented by Formula (1). The nitrile compound includes one or more cyano groups in a molecule. A content of the nitrile compound in the electrolytic solution is within a range from 0.5 wt % to 5 wt % both inclusive. A content of the fluorinated alcohol in the electrolytic solution is within a range from 0.05 wt % to 1 wt % both inclusive.where:each of R1, R2, and R3 is any one of a hydrogen group, an alkyl group, or a fluorinated alkyl group; andat least one of R1, R2, or R3 is the fluorinated alkyl group.
Resumen de: US2025309356A1
A method of manufacturing an all-solid-state battery includes a heating process of heating at least an area of an exterior film facing an outermost surface of an electrode laminate in a laminating direction, and an encasing process of encasing the electrode laminate with the exterior film.
Resumen de: WO2025204008A1
Provided are: a carbon nanotube assembly which has excellent dispersibility in a carbon nanotube dispersion and from which a carbon nanotube dispersion having an appropriate viscosity is obtained; and an application thereof. A carbon nanotube assembly, a carbon nanotube dispersion, a conductive material, an electrode, a secondary battery, a planar assembly, a filter, an electromagnetic wave shield, and an extreme-ultraviolet pellicle, which satisfy the conditions (1) and (2). (1) The peak intensity ratio G1/D1, which is the ratio of the peak intensity G1 of the G band to the peak intensity D1 of the D band in a Raman spectrum of carbon nanotubes, is 0.70-10.0, and the ratio of the peak area ratio G2/D2, which is the ratio of the peak area G2 of the G band to the peak area D2 of the D band, to the peak intensity ratio G1/D1 is 1.20-3.00. (2) The BET specific surface area of carbon nanotubes is 100 m2/g to 300 m2/g.
Resumen de: WO2025201568A1
Provided in the present application are a negative electrode material and a battery. The negative electrode material comprises graphite and an organic polymer material located on the surface and/or inside the graphite. The negative electrode material comprises a metal element, and the metal element comprises at least one of lithium, sodium, potassium and aluminum; and on the basis of the total mass of the negative electrode material being 100%, the mass content of the metal element is 1300-4400 ppm. The negative electrode material is provided with pores, and the volume ratio of the pores having a pore diameter in the range of 5-35 nm in the total pore volume is 15-30%. The negative electrode material provided in the present application can comprehensively improve the lithium-ion transmission kinetics, the initial coulombic efficiency and the cycle performance.
Resumen de: WO2025200354A1
A preparation method for an interpenetrating solid electrolyte interface and the use thereof in the technical field of battery materials. The preparation method comprises: preparing a lithium oxide coating from a lithium metal electrode sheet in an air atmosphere; immersing same in a lithium polysulfide plating solution to prepare a lithium sulfide coating; and then drying same at room temperature to obtain a lithium sulfide/lithium oxide interpenetrating artificial solid electrolyte interface. By means of a simple chemical oxidation reduction method, a double-layer artificial SEI structure is designed to solve the problems, such as volume expansion in cycles, non-uniform lithium deposition, lithium dendrite growth, low coulombic efficiency, and bad long cycle stability, of lithium metal negative electrodes, improving effects in the application to lithium ion batteries.
Resumen de: WO2025205840A1
Provided are: an effective additive for a lithium-ion secondary battery electrode, other than a ferroelectric material, which can improve input-output characteristics by lowering the electrode-electrolyte solution interfacial resistance R2 in a lithium-ion secondary battery positive electrode material that contains one or more of Mn, Fe and Ni; and a lithium ion secondary battery positive electrode material and a lithium ion secondary battery containing same. An additive for a lithium ion secondary battery positive electrode is characterized by containing a composite oxide that is present together with a lithium ion secondary battery positive electrode material containing cations of one or more elements selected from among Mn, Fe, Ni and Co, and in that the composite oxide does not contain alkali metal ions or alkaline earth metal ions, has an acid point and a base point, and has a relative dielectric constant of 20 or more. Also provided are a lithium ion secondary battery positive electrode material and a lithium ion secondary battery containing the additive.
Resumen de: WO2025203600A1
This vehicle comprises: a battery; a battery case in which the battery is accommodated; a first cooling fan that supplies air into the battery case; an electric component that is provided outside the battery case; a second cooling fan that supplies air from the inside of the battery case to the electric component; and a control unit that controls the operations of the first cooling fan and the second cooling fan. If an abnormality has occurred in the battery, the control unit stops the first cooling fan and the second cooling fan.
Resumen de: US2025309240A1
An alkaline storage battery includes a positive electrode. The positive electrode includes a positive electrode mixture. The positive electrode mixture contains a nickel compound and a metal compound. The nickel compound is a positive electrode active material The metal compound is a compound of at least one metal element selected from the group consisting of titanium, niobium, tungsten, vanadium, molybdenum, zirconium, and tantalum. A ratio Wm/Wn of a mass Wm of the metal compound contained in the positive electrode mixture to a mass Wn of the nickel compound contained in the positive electrode mixture in terms of nickel hydroxide ranges from 0.2/100 to 5.0/100. The metal compound contains iron at a mass ratio ranging from 10 ppm to 10000 ppm. A ratio We/Wp of a mass We of the alkaline electrolyte to a mass Wp of the positive electrode mixture ranges from 0.35 to 1.0.
Resumen de: US2025309244A1
A conversion-type positive electrode and formation thereof. The conversion-type positive electrode includes a composite film and a porous inorganic layer formed on the top surface of the composite film, where the composite film includes an electrically conductive porous material and a conversion-type positive electrode active material, and where the porous inorganic layer does not undergo a reversible redox reaction during cycling of the conversion-type positive electrode.
Nº publicación: US2025309260A1 02/10/2025
Solicitante:
HONDA MOTOR CO LTD [JP]
HONDA MOTOR CO., LTD
Resumen de: US2025309260A1
There is provided a positive electrode active material containing a lithium-iron composite fluoride as a principal component, wherein the lithium-iron composite fluoride is represented by the following formula (1):LixFeF(3+x) (1)where, in formula (1), x is a number satisfying 0.4≤x<1.5.
BOPI
Sede Electrónica
