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1255
resultados
Última actualización
10/02/2026 [07:21:00]
Resultados 675 a 700 de 1255
Resumen de: WO2026020790A1
A battery pack for a vehicle, and a vehicle. The battery pack for a vehicle comprises a case and a battery module; an accommodating cavity is formed in the case; the battery module comprises at least one layer of battery assembly; the at least one layer of battery assembly is arranged in the accommodating cavity and comprises a plurality of battery cells arranged in a first direction; the battery cells extend in a second direction, the second direction intersects the first direction, and the second direction is parallel to a traveling direction of the vehicle. By configuring the extension direction of the battery cells to be parallel to the traveling direction of the vehicle, a large number of battery cells can be prevented from being arranged in the traveling direction of the vehicle. In this way, during traveling of the vehicle, when an object scrapes the chassis of the vehicle and causes damage to battery cells, the number of battery cells damaged by the object during traveling of the vehicle can be reduced to a certain extent, so that the maintenance cost of the battery pack is reduced, and the use safety of the battery pack is improved.
Resumen de: US20260031348A1
A positive electrode material includes a lithium cobalt oxide with a P63mc crystal structure. In a Raman spectrum of the positive electrode material, a peak height of a characteristic peak within a range of 490 cm−1±5 cm−1 is I1, and a peak height of a characteristic peak within a range of 592 cm−1±5 cm−1 is I2, satisfying 1
Resumen de: US20260031340A1
The present application provides a sodium-ion battery, a battery, and an electric apparatus. The sodium-ion battery includes a negative electrode plate and a positive electrode plate containing a positive electrode active material. The negative electrode plate includes a negative electrode current collector and a sodium metal layer disposed on at least one surface of the negative electrode current collector. A slope of a state of charge SOC-open circuit voltage OCV curve of the sodium-ion battery is denoted as k, and the state of charge SOC-open circuit voltage OCV curve of the sodium-ion battery satisfies: accumulated SOC≥20%, and k≥5 mV/1% SOC.
Resumen de: US20260031342A1
A positive electrode active material for lithium-ion batteries may include a compound represented by the general formula LiaMnbNic-x-aNx-bMa+bO2, wherein a ranges from 1.02 to 1.08, b ranges from 0.51 to 0.53, c ranges from 0.40 to 0.47, x ranges from 0 to 0.1, a+b ranges from 0 to 0.05, N=Co, Cr, or a combination thereof, and M=W+6, Ta+5, V+5, or a combination thereof.
Resumen de: US20260031338A1
An anode for a lithium secondary battery includes an anode current collector, and an anode active material layer formed on at least one surface of the anode current collector. The anode active material layer includes a carbon-based active material, a first silicon-based active material including a carbon-silicon composite active material, and a second silicon-based active material including a silicon oxide (SiOx, 0<x<2). A content of the first silicon-based active material is in a range from 2 wt % to 40 wt % based on a total weight of the anode active material layer.
Resumen de: US20260031339A1
A secondary battery includes a positive electrode plate, where the positive electrode plate includes a positive electrode current collector, a first material layer, and a second material layer that are stacked; the positive electrode current collector includes a metal layer; the first material layer is disposed between the positive electrode current collector and the second material layer; the first material layer includes first material particles; the first material particle includes a matrix and a carbon coating layer on a surface of the matrix; Dv10 of the first material particles is D1 μm, where 0.3≤D1≤2.0; and the matrix includes at least one of LiFekM(1-k)PO4, where 0≤k≤1, and the M element is selected from at least one of manganese, cobalt, magnesium, calcium, zinc, chromium, or lead. The secondary battery of this application has a low internal resistance and internal resistance growth rate. An electronic apparatus including the secondary battery is further provided.
Resumen de: WO2026023655A1
A niobium-containing oxide powder according to the present invention satisfies formula (I). (I) AaTi(2-p-q-r)(MV (0.5+v)MIII (0.5-v))p(MV (0.67+w)MII (0.33-w))qMIV rNb(14-s)M1 sO(39±t) (In the formula, A is at least one element selected from the group that consists of Li and Na, M1 is selected from the group that consists of MV, (MIV (0.5+w)MVI (0.5-w)), (MVI (0.67+w)MIII (0.33-w)), and (MVI (0.75+w)MII (0.25-w)), each MII is independently at least one divalent metal element, each MIII is independently at least one trivalent metal element, each MIV is independently at least one tetravalent metal element, each MV is independently at least one pentavalent metal element, each MVI is independently at least one hexavalent metal element, 0≤a≤6, -0.05≤v≤0.05, -0.05≤w≤0.05, 0≤p<2, 0≤q<2, 0≤r<2, 0
Resumen de: WO2026023429A1
Provided is a nonaqueous electrolyte secondary battery which comprises an electrode body in which a first electrode and a second electrode are wound with a separator (13) interposed therebetween. The nonaqueous electrolyte secondary battery is characterized in that: the first electrode has a first electrode core body and a first electrode mixture layer; one end portion of the first electrode in the axial direction of the electrode body is provided with a first electrode core body exposed portion in which the first electrode mixture layer is not disposed and the first electrode core body is exposed; the separator (13) has a base material layer (50) and a filler layer (52) that is disposed on at least one surface of the base material layer (50); and the filler layer (52) includes inorganic particles and resin particles (54) which have a larger average particle diameter than the inorganic particles, and has protrusion portions (56) which are formed by the resin particles projecting from an inorganic particle layer (58) that is formed of the inorganic particles.
Resumen de: WO2026023670A1
Provided is a battery which comprises: a positive electrode; a negative electrode disposed separated from the positive electrode; a separator held between the positive electrode and the negative electrode; and an electrolyte solution. Relative to the total mass of the electrolyte solution, the electrolyte solution may contain 0.1-50% of an alkali metal salt, alkaline earth metal salts or nitrate, including at least lithium nitrate, and may contain 1-20% of a fluorinated aromatic compound represented by general formula (1), wherein R1 is one substituent group selected from among hydrogen, fluorine, a methyl group, and a trifluoromethyl group.
Resumen de: WO2026020681A1
The present application relates to the technical field of new energy, and discloses a modified high-nickel positive electrode material, and a preparation method therefor and a use thereof. The modified high-nickel positive electrode material provided by the present application comprises a porous matrix material having a general chemical formula of LiNixMyM'zO2, and an interstitial filler substance, wherein 0.80≤x≤0.98, 0
Resumen de: WO2026020798A1
A battery pack and an electric device having same. The battery pack comprises: a housing (10), the housing (10) defining an accommodating cavity (103); a plurality of battery modules (20), the battery modules (20) being arranged in the accommodating cavity (103), and the battery modules (20) comprising a plurality of battery cells (21) arranged in a first direction; and at least one cooling module (30), the cooling module (30) being arranged between two adjacent battery modules (20). Two ends of the cooling module (30) in the first direction are provided with first fitting portions (31), and the first fitting portions (31) fit battery cells (21) at the two ends of the battery modules (20) in the first direction, and are used for applying to the two battery cells (21) forces acting towards each other.
Resumen de: WO2026020813A1
Disclosed in the present application are a cover plate assembly of a battery cell, and a battery casing, a battery cell, a battery pack and an electric device. The cover plate assembly of the battery cell comprises a cover plate and a cap, wherein the cover plate is adapted to connect to a casing of the battery cell, the cover plate is provided with a communication port running therethrough, the communication port is adapted to be in communication with a first accommodating cavity of the casing, the cap is provided on the cover plate and directly faces the communication port, the cap is fixedly connected to the cover plate, at least part of the cap protrudes in a direction away from the communication port so as to form a protrusion, a second accommodating cavity in communication with the communication port is formed on the side of the protrusion facing the communication port, the second accommodating cavity is configured to temporarily store gas, at least one rupture disc is provided on the protrusion, and the rupture disc is configured to break once the internal pressure of an electrode cell reaches a set pressure, thereby connecting to the second accommodating cavity. In this way, the use safety of the battery cell can be ensured to a certain extent, and the volumetric energy density of the battery cell can also be improved, so as to ensure the working performance of the battery cell.
Resumen de: US20260031345A1
Disclosed are a positive electrode active material for a rechargeable lithium battery, a positive electrode, and a rechargeable lithium battery, the positive electrode active material for a rechargeable lithium battery including large particles including a first lithium nickel-based composite oxide and small particles including a second lithium nickel-based composite oxide, wherein a nickel content based on 100 mol % of a total metal excluding lithium is greater than or equal to about 80 mol %, a ratio of a weight of the first lithium nickel-based composite oxide and a weight of the second lithium nickel-based composite oxide in the positive electrode active material is about 1 to about 4, a span of the first lithium nickel-based composite oxide is about 0.9 to about 1.2, a span of the second lithium nickel-based composite oxide is about 0.9 to about 1.2, and a span of the positive electrode active material is about 1.5 to about 2.
Resumen de: US20260031399A1
The present application relates to a secondary battery and a preparation method therefor, and an electric device. The secondary battery comprises a positive electrode sheet, a negative electrode sheet, and an electrolyte. The positive electrode sheet comprises a positive electrode film layer; the positive electrode film layer comprises a positive electrode active material and a positive electrode electrolyte interface film; and the positive electrode electrolyte interface film comprises Li2MO4, wherein M comprises chalcogens. The electrolyte comprises a solvent and a lithium salt, and further comprises at least one of a lithium metal chelate and an additive capable of being combined with lithium ions to form a chelate.
Resumen de: US20260031344A1
A cathode for a lithium secondary battery and a lithium secondary battery including the same are provided. The cathode for a lithium secondary battery includes a cathode current collector, a first cathode mixture layer disposed on at least one surface of the cathode current collector, and including a first cathode active material being a lithium transition metal oxide particle having a single-crystal structure, and a second cathode mixture layer disposed on the first cathode mixture layer, and including a second cathode active material being a lithium transition metal oxide particle having a secondary particle structure.
Resumen de: US20260031357A1
An electrode comprising a current collector and an active layer on the current collector, wherein the active layer comprises electrode active particles, electrically conducting material and a binder wherein the binder comprises a polymer selected from the group consisting of polyacrylamides, polymethacrylic acid, polyacrylic acid and salts thereof can be used in an energy storage device. The electrode can be made by providing a slurry comprising the electrically conductive elements, the binder and the electrode active material in water, alcohol or a combination thereof, and coating the slurry onto a current collector, and drying to remove the solvent.
Resumen de: US20260031422A1
A method for disassembling a power storage device includes: preparing a power storage device in which a positive electrode and a negative electrode are housed in a case, the negative electrode is electrically connected to the case, and the positive electrode is insulated from the case; separating a portion of the case where the case is electrically connected to the negative electrode, from the case; and cutting another portion of the case after the separating.
Resumen de: WO2026023390A1
Provided is a secondary battery that can be produced efficiently and in which a short circuit between a positive electrode side collector member and a negative electrode side collector member is unlikely to occur. A secondary battery 1 comprises: an electric power storage element 2 that has a positive electrode layer 6, a negative electrode layer 7, and a solid electrolyte layer 5; a positive-electrode-side current collector layer 3; and a negative-electrode-side current collector layer 4. In a plan view, outer peripheral edges 6a, 7a of the positive electrode layer 6 and the negative electrode layer 7 are arranged inwardly of outer peripheral edges 5a of the solid electrolyte layer 5. In a plan view, the positive-electrode-side current collector layer 3 includes a positive-electrode-side current collector body 8 that is disposed inwardly of the outer peripheral edges 5a of the solid electrolyte layer 5, and a positive-electrode-side current collector protrusion 9 that protrudes from an end surface 8b of the positive-electrode-side current collector body 8. The positive-electrode-side current collector protrusion 9 has a positive-electrode-side current collector protrusion end surface 9a that is provided so as to be aligned with an end surface 5b of the solid electrolyte layer 5. In a plan view, the negative-electrode-side current collector layer 4 includes: a negative-electrode-side current collector body 10 that is disposed inwardly of the outer peripheral edges 5a of the
Resumen de: WO2026023369A1
A battery buffer-material 30 is disposed between adjacent battery cells. The battery buffer-material 30 includes: an elastic member; and a heat-resistant bag 34 which envelops the elastic member and which is configured so that if the elastic member generates a gas which exceeds a prescribed concentration, the gas does not come into contact with a battery cell. The heat-resistant bag 34 is formed by bonding peripheral edges of a sheet to each other.
Resumen de: WO2026023074A1
Provided is a method for manufacturing an all-solid-state battery with which it is possible, for an all-solid-state battery that comprises a Li metal or a Li alloy in a negative electrode at the time of manufacturing, to easily detect the presence or absence of a short-circuit cell before connecting a plurality of battery cells in parallel. The method for manufacturing an all-solid-state battery comprises: a press step for pressing a stack, in which a negative electrode that contains a lithium metal or a lithium alloy, a solid electrolyte layer, and a positive electrode are repeatedly disposed, so as to form an all-solid-state battery stack in which a plurality of battery cells are stacked; a temperature measurement step for measuring or estimating the temperature of at least a part of the all-solid-state battery stack during or after the press step; and a detection step for detecting the presence or absence of a short circuit in a battery cell on the basis of the temperature measured or estimated in the temperature measurement step. During the period from the start of the press step to the end of the detection step, a state in which the current collectors of electrodes having the same polarity are not electrically connected to each other is maintained for at least one of the negative electrode and the positive electrode.
Resumen de: WO2026023118A1
This lithium sulfide is characterized by having a carbon content of 2.0 mass% or less and an oxygen content of 5.0 mass% or less. Impurities contained in the lithium sulfide are preferably one or more impurities selected from among carbon, lithium sulfate, lithium carbonate, and lithium oxide. This method for producing a sulfide-based solid electrolyte is characterized by using said lithium sulfide as a raw material.
Resumen de: WO2026020573A1
A testing method, apparatus and device for improving the estimation precision of the state of charge of a power battery, relating to the technical field of power batteries. The method comprises: discharging a power battery to a first state of charge at a constant current, and charging the power battery to a second state of charge at a stepped constant current; under a variable temperature working condition, discharging the power battery after resting to a third state of charge; on the basis of the third state of charge and a fourth state of charge, performing a charge and discharge cycle test on the power battery; discharging the power battery to the first state of charge; on the basis of a state-of-charge ampere-hour integral value obtained by a charge and discharge device and a state-of-charge BMS value obtained by a power battery management system, determining a state-of-charge relative error (S50); and determining a state-of-charge evaluation result to improve the estimation precision of the state of charge of the power battery management system.
Resumen de: WO2026020508A1
The present application provides a solid-state electrolyte membrane and a preparation method therefor, and an all-solid-state battery. The preparation method for a solid-state electrolyte membrane comprises: subjecting an oxide solid-state electrolyte and an additive to a first grinding and mixing treatment, so as to obtain a first mixture, wherein the additive comprises at least one of a first additive and a second additive, the first additive comprises at least one of polyvinylidene fluoride and a copolymer thereof, and the second additive comprises a lithium salt and an ionic liquid; subjecting the first mixture and polytetrafluoroethylene to a second grinding and mixing treatment, so as to obtain a sheet-shaped mixture, wherein on the basis of the total mass of the sheet-shaped mixture, the content of polytetrafluoroethylene is 0.49-5.03 wt%; and rolling the sheet-shaped mixture, so as to obtain a ceramic electrolyte membrane, wherein the solid-state electrolyte membrane comprises the ceramic electrolyte membrane.
Resumen de: WO2026020613A1
The present application discloses a charging control circuit, a battery pack, and an electric device. The charging control circuit comprises a negative voltage isolation module, a charging switch module, and a bleeder module. The negative voltage isolation module is connected to a charging signal, and is configured to isolate negative voltage generated by a charger; the charging switch module is configured to control the connection/disconnection of a charging circuit of an energy storage module; and the bleeder module is configured to bleed charges stored in the charging switch module.
Nº publicación: WO2026020641A1 29/01/2026
Solicitante:
TIANJIN B & M SCIENCE AND TECH CO LTD [CN]
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Resumen de: WO2026020641A1
The present invention relates to a high-entropy doped positive electrode material, and a preparation method therefor and the use thereof. The high-entropy doped positive electrode material comprises a material having the chemical formula of LiNixCoyMnzBaMbO2, wherein 0.80≤x＜0.98, 0＜y＜0.2, 0＜z＜0.2, a＞0, b＞0, a≥b, x+y+z+a+b＝1, and M comprises at least four of Al, Zr, Sr, Sn, Sb, Si, Ba, Y, W, Ta, Ti, Mo, Nb, La, Ta and Ce. The high-entropy doped positive electrode material can have both relatively high specific capacity and cycling stability.
BOPI
Sede Electrónica
