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1509
resultados
Última actualización
17/03/2026 [07:16:00]
Resultados 950 a 975 de 1509
Resumen de: US20260066295A1
The present invention relates to a negative electrode active material for a rechargeable lithium battery and a rechargeable lithium battery including the same, and the negative electrode active material for a rechargeable lithium battery includes graphite including secondary particles in which primary particles are assembled; and amorphous carbon present inside the secondary particles, wherein a ratio of the average particle diameter D50 of the amorphous carbon to the average particle diameter D50 of the primary particles is 0.1 to 0.5.
Resumen de: US20260066287A1
A solid electrolyte-electrode assembly, as well as an all-solid-state battery including the assembly are described. For instance, a solid electrolyte-cathode assembly can be formed by co-rolling a plurality of cathode particles and a plurality of solid electrolyte particles, which results in the simultaneous production of the assembly and makes it possible to achieve improved interface resistance between the electrolyte membrane and electrode to improve battery performance. Also, the resulting electrolyte can be thin, which improves the energy density, while also maintaining excellent strength by using an electrode as a support.
Resumen de: US20260066269A1
The present invention provides a secondary battery including a negative electrode having a negative electrode active material layer containing a negative electrode active material, a positive electrode facing the negative electrode and having a positive electrode active material layer containing a positive electrode active material, a separator interposed between the negative electrode and the positive electrode, and an electrolyte, wherein the negative electrode active material includes a silicon-based active material and an N/P ratio calculated by a specific equation is 1.92 to 2.60.
Resumen de: US20260066281A1
A negative electrode active material particle, a negative electrode comprising the same, and a secondary battery comprising the negative electrode are provided. The negative electrode active material particle comprises a core and a coating layer on the core, the core comprising a silicon-based particle, and the coating layer comprising a polymer comprising an aromatic cyclic monomer unit including a heteroatom and having an alkyl group at a side chain, and thereby prevents side reactions such as the production of hydrogen gas during aqueous mixing of a slurry without increase of resistance.
Resumen de: WO2026045077A1
The present application provides a lithium-ion battery, a positive electrode sheet, and an electrical device. The positive electrode sheet comprises a positive electrode active layer. Components of the positive electrode active layer comprise a positive electrode active material and an additive. The positive electrode active material comprises lithium iron phosphate. The additive comprises hydrogenated nitrile butadiene rubber. The degree of hydrogenation of the hydrogenated nitrile butadiene rubber is 30% to 85%. The degree of hydrogenation is defined as follows: the molar content of double bonds in nitrile butadiene rubber is P1, the molar content of double bonds in the hydrogenated nitrile butadiene rubber obtained after corresponding hydrogenation is P2, and the degree of hydrogenation is (P1-P2)/P1. The film resistance of the lithium-ion battery is low.
Resumen de: WO2026044971A1
A battery pack structure. The battery pack structure comprises: a housing, wherein the housing has a first cavity configured for mounting a battery module, and a second cavity provided on one side of the first cavity in a first direction; and a BMS and a BDU, wherein the BDU is provided in the second cavity, and the BMS is provided on the outer side of the second cavity and is connected to a bottom plate of the housing. In the battery pack structure, the BMS is provided on the outer bottom surface of the housing, so that when the BMS requires maintenance, the battery pack structure does not need to be disassembled, and the BMS on the outside of the housing can be directly maintained, thereby simplifying the overall maintenance operation, saving time and labor, and improving the maintenance efficiency.
Resumen de: WO2026046150A1
The present disclosure relates to a thermal management module for a vehicle, and to a vehicle having said thermal management module. The thermal management module comprises: a refrigerant module having a first channel for refrigerant flow and a second channel for coolant flow; and a coolant plate that is in fluid communication with the second channel. In the thickness direction of the coolant plate, the refrigerant module at least partially coincides with the coolant plate, and the first channel at least partially coincides with the coolant plate.
Resumen de: WO2026045991A1
A dot-array coated battery separator, comprising a separator substrate and a polymer coating applied to the surface of at least one side of the separator substrate. The polymer coating comprises a plurality of crater-like dot-shaped coatings, each dot-shaped coating forming a frustoconical protruding structure having a raised periphery and a central depression. The dot-shaped coatings are arranged on the surface of the separator substrate to form a dot array. The crater structure of the dot-shaped coatings on the dot-array coated battery separator effectively reduces polymer accumulation at the coating points, and correspondingly lessens the impact of hot pressing on separator performance. As a result, the battery separator has good ion permeability, wettability, and gas permeability while satisfying bonding-strength requirements with the battery electrodes, thereby achieving a good performance balance. Further provided are a preparation method for the dot-array coated battery separator and a secondary battery comprising the dot-array coated battery separator.
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: WO2026044820A1
A double-sealed battery cover plate, comprising: a top cover plate, the top cover plate being provided with a terminal post hole, and a plurality of annular ribs being provided on the periphery of the terminal post hole; an electrode post, the electrode post passing through the terminal post hole, and a fixing groove being provided on a peripheral wall of the electrode post; a nano-injection-molded plastic member, the nano-injection-molded plastic member being snapped into a gap between the peripheral wall of the electrode post and the top cover plate, a plurality of inverted snap grooves being provided on the nano-injection-molded plastic member, and the inverted snap grooves being sleeved on corresponding annular ribs; and a sealing ring, the sealing ring being snapped into a gap between the fixing groove and the top cover plate, and a first end of the sealing ring being inserted into the fixing groove.
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: US20260066360A1
A battery may include an electrode assembly including a first electrode, a second electrode and a separator interposed between the first electrode and the second electrode. The first electrode may include a first active material region coated with an active material layer along a winding direction and a first uncoated region not coated with the active material layer. The battery may further include a first current collector coupled to at least part of the first uncoated region on the electrode assembly, a battery housing to accommodate the electrode assembly and the first current collector, and an insulator interposed between an inner surface of the battery housing facing the first uncoated region or the first current collector and the first uncoated region or the first current collector to block an electrical connection between the first uncoated region and the battery housing.
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: 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: 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: US20260066270A1
A method for preparing an aqueous cathode slurry composition, specifically including: (a) performing a first mixing step by mixing a binder and an aqueous solvent; and (b) mixing lithium iron phosphate (LiFePO4) as the cathode active material and a conductive agent into the mixture from step (a), followed by performing a second mixing step using at least one process selected from the group consisting of high rotation energy dispersion mixing, compression pressure mixing, and rotation shear mixing.
Resumen de: US20260066290A1
A positive electrode active material is provide, the positive electrode active material including a first positive electrode active material including a lithium iron phosphate-based compound; and a second positive electrode active material including lithium nickel-based composite oxide; wherein the second positive electrode active material is included in an amount of about 1 wt % to about 15 wt % based on 100 wt % of the first positive electrode active material and second positive electrode active material. The positive electrode active material, the positive electrode including the same, and the rechargeable lithium battery according to some example embodiments may achieve high capacity and excellent or suitable stability.
Resumen de: US20260066268A1
A mixed metal air battery comprises an anode containing at least two metals, which enables the battery to utilize a wide range of metal combinations. The cathode is composed of hydrogen, oxygen, or a mixture of both, allowing for the battery. An electrolyte, in the form of a saturated alkali hydroxide solution, is used to facilitate the flow of ions between the anode and cathode. The electrolyte is in fluid communication with both the anode and cathode, ensuring efficient energy transfer. The battery's design enables it to utilize its anode and cathode materials to generate power, making it a promising alternative to traditional batteries. The combination of metals, gases, and electrolytes creates a unique and efficient energy storage system.
Resumen de: US20260066279A1
A positive electrode active material contains a lithium transition metal oxide in the form of a secondary particle in which primary particles are aggregated, wherein a zirconium-containing coating film is formed on the surface of the lithium transition metal oxide secondary particle and at the interface between the primary particles present inside the secondary particle. A method of making the positive electrode active material is also provided.
Resumen de: US20260066277A1
A composite positive electrode active material for an all-solid-state battery, a positive electrode including the composite positive electrode active material, and an all-solid-state battery. The composite positive electrode active material for includes a positive electrode active material core and a coating layer on the core, wherein the coating layer includes an amorphous solid electrolyte represented by Chemical Formula 1:wherein in Chemical Formula 1, X is F, Cl, Br, I, O, OH, PF6, BF4, S, N, P, ClO4, or CO3;m and n satisfy 1≤m≤2 and 1≤n≤2, respectively; anda and b each satisfy 0.01≤a≤1 and 0.01≤b≤1.
Resumen de: WO2026046066A1
The present application relates to a battery, an electric device, an energy storage system, and a power station. During the structural design of the battery, the maximum size of conductive particles in an adhesive layer in a direction perpendicular to the thickness direction of the adhesive layer is controlled to be less than or equal to the adhesive thickness of the adhesive layer, and the projection size of the conductive particles in the thickness direction is reduced. Additionally, the minimum value of the distance between the conductive particles and the surface of the adhesive layer facing a battery cell is controlled to be greater than zero, so that each conductive particle does not exceed the surface of the adhesive layer facing the battery cell. By means of such design, the size and position distribution of the conductive particles in the adhesive layer are controlled, charge accumulation of the conductive particles in the adhesive layer is reduced, the probability of occurrence of partial discharge is effectively reduced, and the reliability of the battery is improved.
Nº publicación: WO2026046111A1 05/03/2026
Solicitante:
BYD COMPANY LTD [CN]
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Resumen de: WO2026046111A1
The present application provides a composite material, a heat absorbing member, a battery assembly, and an electric device. The composite material comprises a polymer framework, an inorganic additive, and a phase change component. The inorganic additive comprises at least one of a hydrophilic aerogel and kaolin. In the composite material of the present application, the phase change component can improve the heat absorption performance of the composite material, and the inorganic additive can improve the thermal insulation performance of the composite material, such that the composite material has excellent heat absorption and thermal insulation effects, facilitating the use of the composite material in a battery assembly, and improving the use safety of battery cells.
BOPI
Sede Electrónica
