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1482
resultados
Última actualización
11/09/2025 [07:18:00]
Resultados 600 a 625 de 1482
Resumen de: WO2025183518A1
The present invention relates to a method for regenerating a cathode active material, and a regenerated cathode active material prepared thereby. The method comprises the steps of: a) heat-treating, at 300-650 °C, a waste cathode, which has a cathode active material layer formed on a current collector, so as to thermally decompose a binder and a conductive material in the cathode active material layer, thereby separating the current collector from the cathode active material layer and recovering a cathode active material in the cathode active material layer; b) heat-treating the recovered cathode active material again at 350-700 °C for 1-10 hours; c) adding a lithium precursor to the reheated cathode active material and annealing same at 500-1,000 °C; d) washing the annealed cathode active material with a washing solution; and e) surface-coating the washed cathode active material with a coating agent.
Resumen de: WO2025183516A1
The present invention relates to an electrolyte for use in a lithium-sulfur battery, the electrolyte comprising a non-aqueous solvent, a first lithium salt, a second lithium salt, an inorganic nitrate, and an organic nitrate, wherein the non-aqueous solvent comprises an acyclic ether and a conjugated heterocyclic compound, thereby achieving the improvement in coulombic efficiency and lifespan of the lithium-sulfur battery.
Resumen de: WO2025183519A1
The present invention relates to a method for manufacturing a regenerated cathode active material and a cathode active material manufactured therefrom and, more specifically, to a method for manufacturing a regenerated cathode active material and a cathode active material manufactured therefrom, the method comprising the steps of: (a) heat-treating a spent cathode having a cathode active material layer formed on a current collector to thermally decompose a binder and conductive agent in the active material layer, thereby separating the current collector from the cathode active material layer and recovering the cathode active material within the cathode active material layer; (b) adding a lithium precursor to the recovered cathode active material and annealing same at 400 to 1000 °C for 8 to 12 hours; and (c) washing the annealed cathode active material with a cleaning solution.
Resumen de: WO2025183228A1
The present invention relates to a silicon-carbon composite negative electrode material composition comprising nano-silicon particles, a carbon-based substance, and an additive, wherein the additive is a hybrid of a polysaccharide substance and a nano-carbon material.
Resumen de: WO2025182837A1
A battery comprises: an electrode body in which a long positive electrode, having a positive electrode core body and a positive electrode mixture layer, and a long negative electrode (12), having a negative electrode core body (41) and a negative electrode mixture layer (42), are wound with a separator therebetween; and an outer can that houses the electrode body. A negative electrode core body exposed part (41a) is provided to a winding outer surface (12a) on the outermost circumference of the electrode body where the negative electrode core body (41) is exposed. The tensile elongation of a first portion (51) in which the negative electrode core body exposed part (41a) of the negative electrode core body (41) is provided is higher than the tensile elongation of a second portion (52) in which the negative electrode mixture layer (42) is formed on both the winding outer surface (12a) and a winding inner surface (12b) of the negative electrode core body (41).
Resumen de: WO2025182755A1
Disclosed is a composite electrolyte which contains an inorganic solid electrolyte, a polymer, and an alkali metal salt, wherein the inorganic solid electrolyte contains an oxide having a NASICON type crystal structure, and the polymer does not substantially have a repeating unit represented by -(R1-O)- (wherein R1 is an alkylene group) in the main chain.
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: WO2025179706A1
A housing (21), a casing (2) of a battery (100), a battery (100), an electrical apparatus, and a method for processing a housing (21), relating to the technical field of batteries. The housing (21) is formed with an accommodating cavity (21a) and a mounting port (21b) in communication with the accommodating cavity (21a), the accommodating cavity (21a) is used for accommodating a bare cell (1), a housing wall of the housing (21) comprises a side wall and an end wall, a first end of the side wall encloses to form the mounting port (21b), the end wall is arranged at a second end of the side wall, the end wall and the side wall jointly define the semi-closed accommodating cavity (21a), the side wall is formed with a first region (21c) and a second region (21d), and the hardness of the first region (21c) is lower than the hardness of the second region (21d).
Resumen de: WO2025179701A1
A busbar and a battery module, relating to the technical field of batteries. The busbar (001) comprises a busbar strip (012) and a plurality of current guide members (011) arranged at intervals. The current guide members (011) each comprise a fuse part (112) and a current guide part (111). The melting point of the fuse parts (112) is lower than those of the busbar strip (012) and the current guide parts (111). Two ends of each fuse part (112) are respectively connected to a current guide part (111) and the busbar strip (012). Each current guide part (111) is used for connecting to a positive electrode or negative electrode of a battery cell.
Resumen de: WO2025179729A1
A battery pack and an electrical device, the battery pack comprising a plurality of first battery cells, the lower limit voltage of the first battery cells being 2.5-3.0 V; and a plurality of second battery cells, the second battery cells and the first battery cells being arranged in series, and the lower limit voltage of the second battery cells being ≤2.0 V. A negative electrode current collector of each second battery cell comprises metal, the metal comprises at least one of aluminum, nickel, molybdenum, titanium, niobium and iron, and the mass ratio of the metal is ≥40% on the basis of the total mass of the negative electrode current collector of the second battery cell.
Resumen de: WO2025179712A1
A relay welding diagnosis method and a power battery system. The method comprises: collecting a first front end voltage and a first rear end voltage of a main positive relay (S301); when it is determined, on the basis of the first front end voltage and the first rear end voltage, that the main positive relay is in a non-welded state, closing a pre-charge relay and collecting a second rear end voltage of the main positive relay, and when it is determined, on the basis of the second rear end voltage, that the pre-charge relay has been successfully closed, collecting a third rear end voltage of a main negative relay (S302); and when it is determined, on the basis of the third rear end voltage, that the main negative relay is in a non-welded state, disconnecting the pre-charge relay and collecting a fourth rear end voltage of the main positive relay, and when it is determined, on the basis of the fourth rear end voltage, that the pre-charge relay has been successfully disconnected, determining that no welding currently exists (S303). Thus, the problem of high detection cost caused by the need for two high-voltage sampling circuits in relay welding detection circuits is solved, and simultaneous detection of a main positive relay and a main negative relay is realized.
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: 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: 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: 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.
Nº publicación: WO2025183200A1 04/09/2025
Solicitante:
IDEMITSU KOSAN CO LTD [JP]
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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.
BOPI
Sede Electrónica
