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1670
resultados
Última actualización
22/03/2026 [07:31:00]
Resultados 300 a 325 de 1670
Resumen de: WO2026056141A1
The present application provides a modified electrolyte and a preparation method therefor, an electrode material, and a battery. The modified electrolyte comprises a basic electrolyte and metal particles attached to the surface of the basic electrolyte; the material of the metal particles comprises one or more of a nickel element, a copper element, a tin element, an iron element, a cobalt element and a precious metal element. According to the modified electrolyte provided by the present application, a specific solid electrolyte is used as the basic electrolyte, the surface of the basic electrolyte is modified with the metal particles, the electronic conductivity of the modified electrolyte is effectively improved by means of cooperation of the basic electrolyte and the metal particles, and the positive electrode material containing the modified electrolyte can simultaneously improve the effective transmission of ions and electrons, such that the battery having the positive electrode material has both low interface impedance and good electrochemical performance.
Resumen de: WO2026056125A1
The present application provides a high-voltage box power supply system and an energy storage system. The high-voltage box power supply system is applied to the energy storage system, and comprises: a power supply and a plurality of high-voltage boxes. The power supply is electrically connected to one high-voltage box among the plurality of high-voltage boxes. The plurality of high-voltage boxes are electrically connected to each other in sequence, so that the power supply supplies power to the plurality of high-voltage boxes.
Resumen de: WO2026056119A1
The present disclosure provides a battery, which comprises: a positive electrode sheet, a negative electrode sheet, a separator, and an electrolyte, wherein the negative electrode sheet has a porosity of φ in %; the separator has a thickness of t in μm and a pore size of R in μm; the ratio of the total mass of the electrolyte to the discharge capacity of the battery is N in g/Ah. The electrolyte comprises an electrolyte additive, and the electrolyte additive comprises a sulfate compound and a first lithium salt, wherein the first lithium salt includes an oxalate-containing lithium salt, the sulfate compound has a structure represented by Formula I, and the mass fraction of the sulfate compound in the electrolyte is C in %. The battery satisfies the expression A, expression A.
Resumen de: WO2026056079A1
The present application provides a battery pack. The battery pack comprises a busbar and a plurality of cell groups, wherein the busbar is provided between any two adjacent cell groups and is configured to electrically connect the two adjacent cell groups located on either side thereof. In the battery pack, a busbar is provided to electrically connect together two adjacent cell groups. In this way, a plurality of busbars can be used to electrically connect a relatively large number of cell groups, thereby meeting the requirements for a highly integrated CTP module-less battery pack, and increasing space utilization and energy density.
Resumen de: WO2026056055A1
The present application relates to the technical field of batteries, and provides a battery cell, a battery device and an electric device. The battery cell comprises a casing and an electrode assembly. The electrode assembly is received in the casing; the electrode assembly is of a wound structure; the electrode assembly comprises a first electrode sheet; the first electrode sheet is wound along a winding direction; the first electrode sheet comprises a plurality of straight sections and a plurality of bent sections; in the winding direction, the straight sections and the bent sections are alternately arranged and connected; and the plurality of straight sections are stacked in a first direction. The first electrode sheet has a winding starting end; the plurality of straight sections include a first straight section and a second straight section; the first straight section and the second straight section are connected by means of one bent section; the first straight section has a winding starting end; and at least one of the first straight section and the second straight section is provided with a first tab. This structure can shorten current guide paths of the first straight section and the second straight section, so as to improve the lithium intercalation capability of the innermost ring of the first electrode sheet, thereby reducing lithium precipitation on the inner side of the electrode assembly.
Resumen de: WO2026056012A1
The present application provides a lithium metal negative electrode and a preparation method therefor, and a solid-state battery. The lithium metal negative electrode comprises: a lithium layer and porous metal layers bonded to the surfaces of both sides of the lithium layer, wherein the porous metal layers are metal layers provided with a plurality of through holes in a penetrating manner. The porous metal layers comprise a metal having an electrode potential higher than that of lithium; the porous metal layers are used to connect tabs; and the hole diameter of the through holes is greater than or equal to 100 μm.
Resumen de: WO2026055787A1
The present technology relates to solid polymer electrolyte films comprising a heterogeneous mixture of at least two different polymers and a material providing mechanical support, one of the two polymers being a branched polyether having at least 3 branches. The invention also relates to methods of producing same, as well as to electrochemical cells, batteries and accumulators containing same, and uses thereof.
Resumen de: WO2026055815A1
Embodiments of the present application provide an energy storage apparatus and an energy storage system, capable of regulating the temperature of the energy storage apparatus during the use of the energy storage apparatus, such that the energy storage apparatus is within a normal temperature range. The energy storage apparatus comprises a direct current compartment. At least one battery and a thermal management component are disposed in the direct current compartment. The thermal management component is connected to the at least one battery and is used to regulate the temperature of the at least one battery.
Resumen de: WO2026056476A1
An electrochemical device and an electronic device comprising same. The electrochemical device comprises a positive electrode sheet; the positive electrode sheet comprises a current collector and a positive electrode material layer located on at least one surface in the thickness direction of the current collector; the positive electrode material layer comprises a first positive electrode material layer and a second positive electrode material layer; the second positive electrode material layer is located between the first positive electrode material layer and the current collector; the positive electrode material layer comprises a positive electrode active material; the positive electrode active material comprises two or more lithium nickel manganese cobalt oxide ternary materials; the two or more lithium nickel manganese cobalt oxide ternary materials are divided into two groups; the chemical formula of the first group of lithium nickel manganese cobalt oxide ternary materials is Lin1Nix1Coy1Mnz1M1m1O2, wherein x1+y1+z1+m1=1, and 0.15≤y1≤0.60; the chemical formula of the second group of lithium nickel manganese cobalt oxide ternary materials is Lin2Nix2Coy2Mnz2M2m2O2, wherein x2+y2+z2+m2=1, and 0
Resumen de: WO2026056466A1
The present application relates to the technical field of energy storage, and discloses an end cover assembly, an energy storage apparatus, and an electric device. The end cover assembly comprises: a cover plate; an electrode post, comprising a pressing block, a columnar body, and a flange, wherein the pressing block is located on a first side of the cover plate and has a first through hole, a first end portion of the columnar body passes through a mounting hole of the cover plate and is limited in the first through hole, the hole wall of the first through hole and/or the side wall of the first end portion has a gas guiding groove, and the gas guiding groove is in communication with the mounting hole and is in communication with the external environment on the first side of the cover plate; a first insulating member, located between the cover plate and the pressing block; and a sealing member, sleeved on the columnar body.
Resumen de: WO2026056411A1
A separator and a preparation method therefor and a use thereof. The preparation method comprises the following steps: S1: performing double-side coating on a substrate to obtain a first membrane material; and S2: performing phase inversion on the first membrane material to obtain a separator. The double-side coating is performed by means of two slit dies arranged opposite to each other, and during double-side coating of the substrate by means of the two slit dies, the distances between the substrate and the two slit dies are equal; and the opening degree of a die lip of a slit die is denoted as S, the thickness of the substrate is denoted as T, the sum of the spacings from the two slit dies to the substrate is denoted as D, and S, T and D satisfy the following relationship: 3S≤D-T≤55S. By adopting face-to-face coating with the two slit dies and limiting the relationship among the opening degree of the die lip of the slit die, the thickness of the substrate, and the sum of the spacings from the two slit dies to the substrate, the consistency of the thickness on two sides of the separator is ensured, and the thickness deviation of coatings on two sides of the prepared separator is reduced.
Resumen de: WO2026056400A1
The present invention provides a non-aqueous electrolyte and a lithium-ion battery, for solving the problems of high internal resistance, high-temperature gas production and poor capacity retention rate at high and low temperatures of lithium-ion batteries. The non-aqueous electrolyte comprises a lithium salt, an organic solvent and an additive. The additive comprises a succinic anhydride derivative and a fluorinated ester compound, wherein the succinic anhydride derivative is selected from one or more of substances represented by general structural formula (1) and/or structural formula (2); and the fluorinated ester compound is selected from one or more of fluoroborate ester (3), fluorinated carboxylate ester (4), fluorinated aliphatic carbonate ester (5), fluorinated phosphate ester (6) and fluorinated phosphite ester (7).
Resumen de: WO2026056366A1
The present application provides a negative electrode sheet and a lithium-ion battery. The negative electrode sheet comprises a current collector and a first electrode material layer and a second electrode material layer which are sequentially stacked on the current collector in a direction moving away from the current collector, wherein both the first electrode material layer and the second electrode material layer comprise an active material, the active material comprises first active material particles and second active material particles, and the particle size of the first active material particles is greater than the particle size of the second active material particles; and in the first electrode material layer, the total mass of the first active material particles is less than the total mass of the second active material particles, and in the second electrode material layer, the total mass of the first active material particles is greater than the total mass of the second active material particles.
Resumen de: WO2026056326A1
The present application relates to the field of batteries, and provides a battery apparatus and an electric apparatus. The battery apparatus comprises a casing and a battery cell, wherein the casing comprises a plurality of wall portions, the plurality of wall portions together define an accommodating space, and the battery cell is accommodated in the accommodating space. The battery cell comprises an electrode assembly, wherein the electrode assembly comprises a positive electrode sheet, a solid electrolyte layer, and a negative electrode sheet, and the solid electrolyte layer is provided between the positive electrode sheet and the negative electrode sheet. At least one wall portion is provided with a heat insulation structure. The battery apparatus is provided with a heat insulation structure capable of reducing a rate of outward heat transfer, slowing down heat dissipation, and playing a role in conserving heat. This allows for the battery cell to operate at a high temperature, which helps to improve ionic conductivity in the solid electrolyte layer, reduce internal resistance in the battery apparatus, and increase energy density of the battery apparatus.
Resumen de: WO2026056336A1
The present disclosure provides a vehicle thermal management system and a thermal management method. The vehicle thermal management system comprises a battery cycle, a motor cycle, a first passage, a second passage, a third pump, and a temperature regulating device. The battery cycle comprises a first loop, and a first heat exchanger, a first pump, and a battery arranged in the first loop. The motor cycle comprises a second loop, and a second heat exchanger, a second pump, and a motor arranged in the second loop. The first passage is connected to the first loop and arranged in parallel with the first heat exchanger. The second passage is connected to the second loop and arranged in parallel with the second heat exchanger. The third pump is arranged in the second passage and is used to drive a medium in the second passage to flow. The temperature regulating device is connected to the first loop and the second passage and is used to regulate the temperature of a medium flowing to the battery so as to regulate the temperature of the battery. The vehicle thermal management system of the present disclosure is additionally provided with a dedicated temperature regulating device. The temperature regulating device can enhance the heat regulation performance for the battery, thereby avoiding the temperature of the battery being too high and heat dissipation being poor during use.
Resumen de: WO2026056274A1
Disclosed in the present invention are a composite positive electrode material for a lithium battery and a manufacturing method therefor. The method comprises: a grinding step: grinding CrO3 and FeS2 to a mixture having a uniform color; and a heating and sintering step: carrying out a heating reaction on the mixture to obtain a FeS2-doped Cr8O21 composite positive electrode material. The mass ratio of CrO3 to FeS2 is (10-20):1, the heating temperature is 260°C-270°C, and the constant-temperature duration is 8 h-18 h. The FeS2-doped Cr8O21 composite positive electrode material manufactured by the present invention has the characteristics such as small particle size, high purity, and low impurity content, and can effectively enhance discharge efficiency and electrochemical performance when applied to lithium batteries.
Resumen de: WO2026056261A1
The present application relates to a secondary battery and a preparation method therefor, a positive electrode lithium supplementing agent, a positive electrode sheet and an electric device. The secondary battery comprises a positive electrode sheet, the positive electrode sheet comprises a positive electrode current collector and a positive electrode film layer arranged on at least one surface of the positive electrode current collector, and the positive electrode film layer comprises a positive electrode lithium supplementing agent. The positive electrode lithium supplementing agent comprises a porous carbon material and a lithium-rich material distributed inside the porous carbon material, wherein the volume-average particle size Dv50 of the lithium-rich material is 0.1-3 μm, and the ratio of the volume-average particle size Dv50 of the lithium-rich material to the volume-average particle size Dv50 of the porous carbon material is denoted as P, where P≤0.35. The mass percentage content of lithium in the positive electrode lithium supplementing agent is 7-11%, and the positive electrode lithium supplementing agent in the secondary battery can improve the discharge capacity of the battery at a relatively low voltage.
Resumen de: WO2026056259A1
Disclosed in the present invention is a capacity restoration method for a lithium metal battery. A lithium metal battery has a conventional charging rate of C1, and a conventional discharging rate of C2, and the lithium metal battery capacity restoration method comprises: primary discharging: performing discharging at the conventional discharging rate C2 until a full-discharge state is reached; charging: performing charging at a charging rate C3 until a preset charging cut-off voltage is reached, and maintaining the preset charging cut-off voltage for constant voltage charging until the charging current is less than 0.025C, wherein 0.05C1≤C3≤0.8C1, and C is the nominal capacity of the lithium metal battery; and secondary discharging: performing discharging at a discharging rate C4 until a preset discharging cut-off voltage is reached, 0.05C1≤C4≤0.8C1. In this way, the capacity can be restored in a timely manner during the use of lithium metal batteries, and the restoration process can be accurately controlled on the basis of the actual condition of the batteries, thereby effectively improving the cycle performance of lithium metal batteries and prolonging the cycle life thereof. Further disclosed in the present invention is a lithium metal battery, the capacity of which may be restored by means of the capacity restoration method.
Resumen de: WO2026056222A1
Provided in the present application are a battery assembly and an electrical device. The battery assembly comprises at least two groups of cell battery packs, and a separator located between two adjacent groups of cell battery packs. The separator comprises a hard calcium silicate board, and the hard calcium silicate board comprises a hard calcium silicate material, the density of the hard calcium silicate plate being greater than 170 kg/m3 and less than 600 kg/m3. The present application can effectively inhibit the problems of heat diffusion and thermal runaway, and improve the thermal safety and other performance of the battery assembly.
Resumen de: WO2026056221A1
The present application relates to the technical field of batteries, and in particular to a battery cell cover plate and a battery cell. The battery cell cover plate comprises: a cover plate body provided with a mounting hole, an inwardly protruding boss portion being formed on an inner wall of the mounting hole, and the size of the boss portion in a first direction being c; and a pressure relief member provided on one side of the boss portion in the first direction, and welded to the boss portion, so as to form a welding portion between the pressure relief member and the boss portion, wherein the size of the welding portion on the boss portion along the first direction is h, and 0.2 mm≤h≤(c-0.3) mm; the size of the welding portion on the boss portion along a second direction is w, and w≥0.2 mm; and the size of the welding portion on the pressure relief member along the second direction is W1, and W1≥w. The present application ensures reliable welding between the cover plate body and the pressure relief member, enhances the connection strength between the cover plate body and the pressure relief member, prevents the battery cell from electrolyte leakage caused by cracking and damage of the welding portion, and can also avoid appearance degradation due to deformation of the cover plate body caused by burn-through.
Resumen de: US20260081250A1
The present application relates to a battery and an electrical apparatus. The battery includes a thermal management component and an electrical box. The electrical box includes a case configured to accommodate a heat-generating component and a thermally conductive structure sealingly connected to the case. The thermally conductive structure is configured to connect the heat-generating component to the thermal management component to facilitate heat transfer. The sealing connection between the thermally conductive structure and the case closes connection gaps to prevent liquid infiltration into the interior of the case.
Resumen de: US20260081282A1
A battery cell holder for accommodating a battery cell includes: an upper cover configured to extend around an upper portion of a battery cell while exposing a first electrode terminal of the battery cell; and a lower cover configured to extend around a lower portion of the battery cell while exposing a second electrode terminal of the battery cell, the lower cover and the upper cover being coupled to each other. A pair of parting sides of the upper cover and the lower cover that contact each other when the upper cover and the lower cover are coupled together extend diagonally.
Resumen de: US20260081247A1
Disclosed herein is a process for recycling aluminum hydroxide from a black mass including aluminum, the process including in the given order the steps of leaching in a first leaching step the black mass in an aqueous acid solution; separating the first leaching residue from the first leaching solution; adding in a pH-adjusting step a first aqueous base solution to the first leaching solution; precipitating an Al/Fe precipitate from the first pH-adjusted leaching solution; separating the Al/Fe precipitate from the first pH-adjusted leaching solution; leaching the Al/Fe precipitate in a second aqueous base solution; separating the second leaching residue from the second leaching solution; precipitating in an Al precipitation step an Al precipitate from the second leaching solution; and separating the Al precipitate from the second leaching solution.
Resumen de: US20260081246A1
A method is provided for recycling a cathode active material. The method includes reacting spent cathode active material particles with an alkaline solution to form a reaction mixture containing a metal fluoride and solid cathode active material particles, and filtering the reaction mixture to remove the metal fluoride and separate the solid cathode active material particles from the reaction mixture. The method further includes mixing the solid cathode active material particles with a solid lithium material to form relithiated cathode active material particles, and heating the relithiated cathode active material particles to form the cathode active material. The alkaline solution comprises water and at least one hydroxide selected from the group consisting of: sodium hydroxide, potassium hydroxide and lithium hydroxide. The spent cathode active material particles comprise fluorine and lithium.
Nº publicación: US20260081278A1 19/03/2026
Solicitante:
RIVIAN IP HOLDINGS LLC [US]
Rivian IP Holdings, LLC
Resumen de: US20260081278A1
Structurally integrated battery pack circuitry is disclosed. The structurally integrated battery pack circuitry may include processing circuitry, such as balancing voltage and temperature (BVT) circuitry, mounted in a support structure of an enclosure for a battery pack. The support structure may be a crossmember or a longitudinal member of the enclosure.
BOPI
Sede Electrónica
