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1864
resultados
Última actualización
12/03/2026 [08:03:00]
Resultados 700 a 725 de 1864
Resumen de: US20260066345A1
An electrolyte for a rechargeable lithium battery and a rechargeable lithium battery including the electrolyte are disclosed. The electrolyte may include a non-aqueous (e.g., water-insoluble) organic solvent, a lithium salt, a first additive that includes a cesium salt compound represented by Chemical Formula 1-1 or Chemical Formula 1-2, and a second additive that includes a phosphazene compound represented by Chemical Formula 2.
Resumen de: US20260066300A1
The present disclosure discloses a positive electrode including a current collector, and a positive electrode active material layer on the current collector. The positive electrode active material layer includes a positive electrode active material, boron nitride, and polyethylene oxide. The present disclosure also discloses a rechargeable lithium battery including the positive electrode.
Resumen de: WO2026045225A1
A negative electrode sheet, a secondary battery, an electric device, and artificial graphite and a preparation method therefor. The negative electrode sheet comprises a negative electrode current collector and a negative electrode film layer located on at least one surface of the negative electrode current collector, wherein the negative electrode film layer comprises artificial graphite. La (110) of the artificial graphite is 130 nm-175 nm, and Lc (002) thereof is 30 nm-42 nm, wherein La (110) represents the crystallite size along an a axis in the (110) crystal plane of the artificial graphite, and Lc (002) represents the crystallite size along a c axis in the (002) crystal plane of the artificial graphite.
Resumen de: WO2026045268A1
Provided in the present disclosure are a positive electrode sheet, a solid-state battery cell, a battery device, an electric device, and a positive electrode active material and a preparation method therefor. The positive electrode sheet comprises a positive electrode active material and a sulfide solid-state electrolyte material, wherein the positive electrode active material comprises a substrate material and a coating material located on at least part of the surface of the substrate material, the substrate material comprising a transition metal oxide, and the coating material comprising a fluorine-containing lithium salt material. When applied to a solid-state battery cell, the positive electrode sheet can reduce the capacity fade rate of the solid-state battery cell at high temperatures and improve the high-temperature cycle performance of the solid-state battery cell.
Resumen de: WO2026045274A1
Disclosed in the present application are a battery cell and a preparation method therefor, a battery device, and an electric device. The battery cell comprises: a first electrolyte, which comprises a carbonate solvent; and a negative-electrode composite electrode sheet, which comprises a negative electrode sheet and a solid-state electrolyte film, wherein the solid-state electrolyte film is located on a surface of the negative-electrode composite electrode sheet, the negative-electrode composite electrode sheet is formed by subjecting the negative electrode sheet to a film-forming treatment in a second electrolyte so as to form the solid-state electrolyte film on the surface of the negative electrode sheet, and the second electrolyte comprises one or more of an ether solvent and a sulfone solvent.
Resumen de: WO2026045226A1
The present disclosure provides a secondary battery and an electrical device. The secondary battery comprises a negative electrode sheet. The negative electrode sheet comprises a negative electrode current collector and a negative electrode film layer formed on at least one surface of the negative electrode current collector. The negative electrode film layer comprises a first region and a second region. The first region is located between the second region and the negative electrode current collector. The first region comprises a first negative electrode active material. The second region comprises a second negative electrode active material. A powder OI value of the second negative electrode active material is less than a powder OI value of the first negative electrode active material. The first negative electrode active material comprises a first artificial graphite having an La(110) of 130-175 nm and an Lc(002) of 30-42 nm.
Resumen de: WO2026045083A1
Provided is a battery housing (100), comprising a casing (10). The casing (10) is provided with an accommodation cavity (11) having a cavity opening (11a) and used for placing an electrode core (300). The cavity opening (11a) comprises a first cavity opening (111) located on an end wall surface (12) of the casing (10) and a second cavity opening (112) located on a side wall surface (13) of the casing (10), the first cavity opening (111) and the second cavity opening (112) being in communication with each other. The battery housing (100) can overcome the technical defect that laser cannot be placed vertically during the welding process of terminals (240) and tabs of the electrode core (300), thereby facilitating the laser welding of the terminals (240) and the tabs of the electrode core (300), and improving working efficiency. Also provided are a secondary battery (1000) and a manufacturing method therefor.
Resumen de: WO2026047719A1
The present invention generally relates to the metal batteries. The present invention discloses sodium-plated host material comprising sodium-plated or bonded with metal modified electrospun carbon nanofiber, wherein the metal is selected from tin (Sn), silicon (Si), germanium (Ge), zinc (Zn), cobalt (Co) and lead (Pb). The present invention also discloses a process for preparation of sodium-plated host material and a full cell comprising the sodium- plated host material.
Resumen de: WO2026048183A1
A lead-acid battery 1 comprises: a battery case 20; an electricity storage element 30 and an electrolyte 35 which are housed in the battery case 20; a lid member 50 for sealing the upper surface of the battery case 20; and a vent plug 70 attached to the lid member 50. A plug body 71 of the vent plug 70 includes: a head portion 73 having an exhaust hole 73B; and a cylindrical portion 75 which protrudes downward from the head portion 73 and has an opening 76 at a tip. When the lead-acid battery 1 is in the upright or inverted position, the opening 76 at the cylinder tip of the cylindrical portion 75 of the vent plug 70 is positioned above a liquid surface of the electrolyte 35, and the opening 76 at the cylinder tip is closed by a wall.
Resumen de: WO2026047948A1
This electric vehicle control method is for warming an on-board device by using heat generated by a first electric unit and a second electric unit, in an electric vehicle that includes: the first electric unit and the second electric unit which are for generating torque for travelling; and a battery for supplying power to the first electric unit and the second electric unit. In this control method, when warm-up of the on-board device is required while the electric vehicle is traveling, the first electric unit and the second electric unit are boosted, or the d-axis currents of the first electric unit and the second electric unit are increased, to intensify the heat generated by the entirety of the first electric unit and the second electric unit. Additionally, according to the states of the first electric unit and the second electric unit, the d-axis current of one of the first electric unit and the second electric unit is increased more significantly than the d-axis current of the other so as to preferentially cause one of the first electric unit and the second electric unit to generate heat.
Resumen de: WO2026044824A1
The present application belongs to the field of sodium batteries, and provides a composite sodium iron sulfate positive electrode material, and a preparation method therefor and the use thereof. The composite sodium iron sulfate positive electrode material comprises a core, the chemical formula of which is NaxMyFez(PO4)k(SO4)(0.4-0.6)xOt, wherein M comprises at least one of manganese, vanadium and titanium, 16≤x≤17, y=1, 4≤z≤5, 2≤k≤2.6, and y+z-0.1x-1.5k≤t≤y+z+0.1x-1.5k. In the present application, the decomposition of sulfate radicals is reduced, the material performance of the composite sodium iron sulfate positive electrode material is improved, and the performance aspects, such as the cycle performance, of a secondary battery in which the composite sodium iron sulfate positive electrode material is used are improved.
Resumen de: WO2026044814A1
Disclosed in the present invention are a lithium metal material, a method for controlling the orientation of crystal faces of a lithium metal, an electrode sheet and a battery. The surface of the lithium metal material has a crystal face (110), a crystal face (211) and a crystal face (200); and the ratio of the intensity of the characteristic peak of the crystal face (110) to the intensity of the characteristic peak of the crystal face (211) is greater than or equal to 3, and the ratio of the intensity of the characteristic peak of the crystal face (110) to the intensity of the characteristic peak of the crystal face (200) is greater than or equal to 3. The intensity of the crystal face (110) on the surface of the lithium metal material is high, and the lithium metal material has the high-exposure crystal face (110) and can be used in a lithium metal battery. Due to a low surface diffusion energy barrier of lithium ions on the lithium crystal face (110), the material tends to form a high-dimensional structure rather than one-dimensional dendrites; therefore, when used in a lithium metal battery, the lithium metal material can effectively reduce the risk of internal short circuits under high-current and long-term cycling conditions.
Resumen de: WO2026044867A1
Disclosed in the present application are a battery aluminum foil coating device and coating method, a current collector, and a battery. By means of passing aluminum foil through an unwinding mechanism, a double-sided coating assembly, a first-side coating assembly, a second-side coating assembly and a winding mechanism in sequence, double-sided coating is completed, thereby combining an aluminum-foil carbon layer coating procedure with an electrode slurry coating procedure, and thus greatly reducing the production cost, shortening the production cycle, and reducing the waste of resources.
Resumen de: US20260066340A1
A method for preparing a solid-state electrolyte membrane structure. The method includes: S1, proportionally mixing raw materials of a solid-state electrolyte to obtain a mixed powder; S2, mixing the mixed powder, a binder and a solvent together to obtain a solid-state electrolyte precursor slurry; S3, coating the solid-state electrolyte precursor slurry on a substrate to obtain a solid-state electrolyte precursor coating layer; and S4, subjecting the solid-state electrolyte precursor coating layer to a laser treatment to obtain the solid-state electrolyte membrane structure.
Resumen de: US20260066433A1
Array housing designs are disclosed for battery arrays of a traction battery pack. An exemplary battery array may include an array housing having a ribbed structure that includes at least one rib (e.g., external and/or internal) configured for increasing the structural stiffness of the battery array. A groove may extend at least partially through the rib, and an adhesive/sealant may be disposed within the groove for securing a surrounding structure relative to the array housing and thereby structurally integrating the battery array. In some implementations, the groove may receive a fin of a thermal barrier assembly of a battery cell stack of the battery array.
Resumen de: US20260066444A1
A battery module includes a housing which accommodates a plurality of battery cells therein, and has a vent-hole portion formed therein; a top cover which is movably installed on the housing so as to open/close the vent-hole portion; an elastic member which is installed to apply an elastic force to the top cover in a direction in which the top cover opens the vent-hole portion; and a stopper configured to support the top cover so that the top cover maintains a closed state of the vent-hole portion. The stopper can lose or reduce support to the top cover due to changes in temperature or pressure.
Resumen de: US20260066299A1
A salt-philic solvent-phobic (SP2) polymer coating on a lithium anode, sodium anode, or a silicon anode selectively transports salt over solvent and is configured to promote salt-derived SEI formation on the anode. The SP2 coating can include a polymer backbone, a first side chain comprising a first moiety having salt affinity, and a second side chain comprising a second moiety immiscible with polar aprotic solvents.
Resumen de: US20260066424A1
A traction battery pack assembly includes a cell stack within an interior of an enclosure. The cell stack has a plurality of battery cells disposed along a cell stack axis and at least one thermal barrier disposed along the cell stack axis. The at least one thermal barrier has a plurality of more compressible pieces secured to a plurality of less compressible pieces to establish at least one channel that is configured to communicate a liquid coolant though the cell stack.
Resumen de: US20260066440A1
A battery pack according to the present disclosure includes: at least one battery assembly including a plurality of battery cells and having a vent hole on a first direction side; a pack case in which an accommodation space configured to accommodate the battery assembly is formed; and a cooling and venting member disposed on the first direction side of the battery assembly. The cooling and venting member includes a venting unit configured to allow vent gas discharged from the vent hole to flow therethrough, and a cooling unit configured to cool the battery assembly.
Resumen de: WO2026045270A1
Provided in the present disclosure are a positive electrode sheet, a solid-state battery cell, a battery device, an electric device, and a positive electrode active material and a preparation method therefor. The positive electrode sheet comprises a positive electrode active material and a sulfide solid-state electrolyte material, wherein the positive electrode active material comprises a substrate material, a cobalt-rich material located on the surface of the substrate material and a coating material located on at least part of the surface of the cobalt-rich material; the substrate material comprises a transition metal oxide, the cobalt-rich material comprises a Co-containing transition metal oxide, and the molar content of Co in the cobalt-rich material is greater than that of Co in the substrate material; and the coating material comprises an electrolyte salt material. When applied to a solid-state battery cell, the positive electrode sheet can reduce the capacity fade rate of the solid-state battery cell at high temperatures and improve the high-temperature cycle performance of the solid-state battery cell.
Resumen de: WO2026045216A1
Provided in the embodiments of the present disclosure are a heat exchange assembly, a battery device, an electric apparatus and an energy storage apparatus. The battery device comprises a case assembly, a battery cell assembly and a heat exchange assembly. The case assembly has an accommodating cavity therein. The battery cell assembly is arranged in the accommodating cavity. The heat exchange assembly is arranged in the accommodating cavity. The heat exchange assembly comprises at least two flexible members, which are arranged in a stacked manner; and a heat exchange flow channel is formed between the flexible members and configured for conduction of a heat exchange medium, which is configured for heat exchange with the battery cell assembly.
Resumen de: WO2026045198A1
Provided in the present disclosure are a negative electrode sheet, a secondary battery, an electric device, and a negative electrode active material and a preparation method therefor. The negative electrode sheet comprises a negative electrode current collector and a negative electrode film layer located on at least one surface of the negative electrode current collector, wherein the negative electrode film layer comprises a negative electrode active material. The negative electrode active material comprises first artificial graphite and second artificial graphite, wherein the first artificial graphite comprises primary particles, and the second artificial graphite comprises secondary particles. The powder OI value of the negative electrode active material is 2.5-6.5; and the powder compaction density of the negative electrode active material under a pressure of 50,000 N is 1.75-1.94 g/cc.
Resumen de: WO2026047774A1
The various embodiments of the present invention provide a system and method for extraction of lithium from active materials of lithium iron phosphate battery. The method involves extraction of materials from spent battery and heating a mixture of the battery's black mass with suitable reagents at specific temperature in a predetermined ratio, to initiate a chemical reaction that efficiently produces lithium chloride, which is then extracted through water leaching. This method eliminates the need for harmful acids and solvents, operates at lower temperatures, and directly produces lithium chloride in a form that is both pure and economically valuable. Furthermore, the process is environmentally friendly, reduces operational costs, and enhances lithium recovery rates. By-products such as calcium fluorophosphate and iron oxide are also repurposed, supporting sustainability and reducing waste. This system offers a significant improvement over traditional methods, providing a safer, more sustainable, and cost-effective solution for recycling Lithium ion batteries.
Resumen de: WO2026047500A1
Provided is a secondary battery or an electrolyte solution that exhibits excellent battery characteristics below the ice point. According to the present invention, a secondary battery includes an electrolyte solution that includes at least a lithium salt and a mixed solvent that includes a cyclic carbonate and a chain carbonate, the molar ratio (CH/CY) of the chain carbonate (CH) to the cyclic carbonate (CY) being greater than 1.5, and the concentration of the lithium salt per liter of the mixed solvent being 0.25-1 mol.
Nº publicación: WO2026047503A1 05/03/2026
Solicitante:
SEMICONDUCTOR ENERGY LABORATORY CO LTD [JP]
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Resumen de: WO2026047503A1
Provided are a secondary battery excellent in charge/discharge characteristics and impact resistance and a method for manufacturing the same. The secondary battery includes a positive electrode, a negative electrode, and an exterior body that houses the positive electrode and the negative electrode, wherein: on one side of the exterior body, the positive electrode and the exterior body are connected at at least two locations and the negative electrode and the exterior body are connected at at least two locations; the positive electrode includes a positive electrode active material layer; the positive electrode active material layer contains lithium cobalt oxide; the lithium cobalt oxide has, in a surface layer part, magnesium, titanium, aluminum, and nickel; the surface layer part is a region within 50 nm from the surface of the lithium cobalt oxide; and when STEM-EDX line analysis is performed in the depth direction of the surface layer part, the aluminum has a peak closer to the inside of the lithium cobalt oxide than the magnesium.
BOPI
Sede Electrónica
