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1315
resultados
Última actualización
04/11/2025 [07:11:00]
Resultados 175 a 200 de 1315
Resumen de: US2025337011A1
An object of the present invention is to provide a lithium ion secondary battery excellent in cycle characteristics and additionally corrosion resistance which are important in a vehicle-mounted secondary battery such as an electric vehicle, and to provide an electrolytic solution capable of producing such a lithium ion secondary battery. An electrolytic solution for a lithium ion secondary battery, the electrolytic solution containing an electrolyte dissolved in a nonaqueous solvent, in which the electrolytic solution contains cyanomethyl formate and/or 2-cyanoethyl formate. A lithium ion secondary battery including a positive electrode, a negative electrode, a separator, and the electrolytic solution for a lithium ion secondary battery.
Resumen de: US2025337006A1
In accordance with the purpose(s) of the present disclosure, as embodied and broadly described herein, the disclosure, in one aspect, relates to sulfide solid electrolytes and synthesis of sulfide solid electrolytes. The electrolytes have the general formula AzMwSvCl4-yXy and exhibit good ionic conductivity. The electrolytes are relatively cost-effective to produce, as they contain naturally abundant elements, and can be synthesized via a relatively fast synthesis route. The electrolytes can be a component of different types of batteries or sensors for ion detection.
Resumen de: US2025337017A1
A battery includes a positive and a negative electrode plate, a separator, and an electrolyte solution. The additives of the electrolyte solution include tricyanophosphite compounds and alkyl polycyanide compounds. It can solve problems of large side reactions between electrolyte solution and electrode interface, and the significant deterioration of high-temperature cycling performance and high-temperature storage performance of the battery under high voltage. By adding an appropriate amount of electrolyte additive according to the areal density of the positive electrode, it is possible to form a very stable interface film and interface coordination effect on the positive electrode, significantly improving the stability of the electrolyte solution and the positive electrode interface, reducing the consumption of the electrolyte solution and the damage to the positive electrode structure during battery cycling, and significantly enhancing the high-temperature cycling performance and high-temperature storage performance of the battery at high voltage.
Resumen de: US2025337014A1
The present disclosure relates to an electrolyte solution for a rechargeable lithium battery and a rechargeable lithium battery including the same, wherein the electrolyte solution includes a non-aqueous organic solvent, a lithium salt, the above-described first additive represented by Chemical Formula 1, and the above-described second additive represented by Chemical Formula 2.
Resumen de: US2025336970A1
A positive electrode for a rechargeable lithium battery and a rechargeable lithium battery including the same are provided. A positive electrode for a rechargeable lithium battery includes a current collector, a first active material layer on the current collector, and a second active material layer on the first active material layer. The first active material layer includes a first particle in the form of a single particle, and the second active material layer includes a second particle in the form of a secondary particle. The first particle includes a compound of Formula 1, and the second particle includes a compound of Formula 2, provided herein.
Resumen de: US2025336909A1
The present invention utilizes thin film deposition technology to directly deposit a compound of electrode affinity, hydrogen, and carbon atoms and its derivatives or composites onto the surface of an electrode foil, positive electrode plate or negative electrode plate to form an electrospun membrane which can directly serve as a separator membrane in an electrochemical device. Due to the strong affinity of the deposited thin film membrane to the surface of the electrode foil, positive electrode plate or negative electrode plate via thin film deposition process's attraction, a binding interface thereof exhibits an ordered ion channel layer which can serve as a beneficial artificial electrolyte interface layer on the current collector or electrodes.
Resumen de: US2025336913A1
A positive electrode granule includes a positive electrode active material and a binder. The positive electrode active material includes a lithium iron phosphate-based compound and the positive electrode active material is bound by the binder The binder is distributed uniformly at a central portion and a surface portion of the positive electrode granule The surface portion is a region near the granule surface from the granule surface to a predetermined depth toward the center of the granule, and the core portion is a region other than the surface portion. An electrochemical device including the same is also provided.
Resumen de: US2025336934A1
A secondary battery and an electrical device are provided. The secondary battery includes a positive electrode sheet and a negative electrode sheet. The positive electrode sheet comprises a film layer that includes a positive electrode active material containing transition metals, with nickel accounting for at least 85% of the total molar content. The energy density of the positive electrode film layer on one side of the sheet ranges from 15 to 35 mWh/cm2. The negative electrode sheet comprises a film layer that includes a carbon-silicon composite, where silicon nanoparticles are attached to carbon matrix particles having a carbon skeleton. Through coordinated design of the positive and negative electrode materials, the energy density of the secondary battery is enhanced.
Resumen de: US2025336912A1
A method of applying uniform pressure to an all-solid-state battery during activation of the battery and preventing an interface contact surface from being separated as the result of gas generated in the all-solid-state battery is provided. This method increases the lifespan of the battery and an all-solid-state battery manufactured using the same method.
Resumen de: US2025336922A1
Positive electrode active materials for a rechargeable lithium battery, positive electrodes including the positive electrode active material, and rechargeable lithium batteries including the positive electrode active material are provided. The positive electrode active material comprises first particles comprising a compound of Lia1Mnz1Fex1Ay1PO4−c1 and second particles comprising a compound of Lia2Nix2Mnz2Xc2O2−b2. The cobalt (Co) content (e.g., amount) in the positive electrode active material is about 100 ppm or less.
Resumen de: US2025337003A1
A battery may include an electrode assembly including electrodes and a body cup that includes a first reference wall and a first sidewall provided adjacent to the first reference wall, with the body cup having an open end and the body cup accommodating the electrode assembly. The battery also includes a cover cup that includes a second reference wall and a second sidewall provided adjacent to the second reference wall. The cover cup has an open end and is accommodated in the body cup such that the second reference wall closes the open end of the body cup. At least a portion of the first sidewall and at least a portion of the second sidewall are joined to form a flange.
Resumen de: US2025336967A1
Provided are a positive electrode for a rechargeable lithium battery and a rechargeable lithium battery including the same, and for example, a positive electrode for a rechargeable lithium battery, including a current collector, a first positive electrode active material layer on the current collector, and a second positive electrode active material layer on the first positive electrode active material layer. The first positive electrode active material layer includes a first particle having an olivine structure, and a second particle having a layered structure, and the second positive electrode active material layer includes a third particle having an olivine structure. The first particle is a single particle, the third particle is in the form of a secondary particle in which a plurality of third primary particles are aggregated, and the second particle has a greater average particle diameter than each of the first particle and the third particle.
Resumen de: US2025336966A1
The present specification relates to a method of preparing a positive electrode active material for a lithium secondary battery, and more particularly, to a positive electrode active material for a lithium secondary battery with excellent electrical conductivity and energy density, a preparation method thereof, and a positive electrode and a secondary battery including the same.
Resumen de: US2025337012A1
An electrolyte for a rechargeable lithium battery and a rechargeable lithium battery are disclosed. The electrolyte for a rechargeable lithium battery may include a non-aqueous organic solvent; a lithium salt; and an additive represented by Chemical Formula 1.R-L-N═C═O Chemical Formula 1
Resumen de: US2025336963A1
A positive electrode active material for a secondary battery includes a lithium complex transition metal oxide and a surface coating portion. The lithium complex transition metal oxide includes nickel (Ni), cobalt (Co), and at least one selected from the group consisting of manganese (Mn) and aluminum (Al). The surface coating portion is formed on surfaces of the lithium complex transition metal oxide particles and the surface coating portion includes a cobalt-rich layer, which has a higher cobalt content than the lithium complex transition metal oxide, and a lithium boron oxide.
Resumen de: US2025336933A1
The present disclosure relates to an electrode for a rechargeable lithium battery, and a rechargeable lithium battery including the electrode. The electrode includes an active material layer for a rechargeable lithium battery, and an organic-inorganic composite layer integrated with the active material layer. The organic-inorganic composite layer includes nanofibers, the nanofibers include an inorganic material and a matrix, the inorganic material includes one or more of boron nitride nanosheets and boron nitride nanotubes, the matrix includes one or more of a polyimide-based polymer and a polyamic acid-based polymer, and the inorganic material is included in an amount of about 0.1 wt % to about 7 wt % in the nanofibers.
Resumen de: US2025337100A1
A battery module includes a cell assembly including a plurality of battery cells; a module housing accommodating the cell assembly and including a plurality of venting holes; a first barrier disposed on an inner surface of the module housing and including a plurality of first venting portions configured to deform based on pressure inside the module housing; and a second barrier disposed on an outer surface of the module housing and including a plurality of through-holes. At least a portion 10 of gas generated in the cell assembly is configured to be discharged to an outside of the module housing through the plurality of first venting portions, the plurality of venting holes, and the plurality of through-holes.
Resumen de: US2025337048A1
A traction battery pack immersion thermal management system includes a coolant delivery system that communicates a coolant from an coolant supply to a battery case that houses a cell stack. The coolant delivery system includes at least one inlet port to the battery. The thermal management system additionally includes a coolant return system that communicates the coolant from the battery case back to the coolant supply. The coolant return system including a plurality of outlet ports and a return manifold. The outlet ports each separately fluidly connect the battery case to the return manifold. The return manifold is configured such that coolant received from each of the plurality of outlet ports is mixed within the return manifold prior to reaching the coolant supply.
Resumen de: US2025337041A1
A thermal regulation device for cooling of an energy storage unit, including a first stage and a second stage. The first stage includes a first support plate and a first distribution plate. The thermal regulation device includes at least one additional plate positioned against the first support plate, and delimiting at least one duct for circulation of the cooling fluid. The first stage and the second stage are in fluidic communication via the additional plate and a connection means.
Resumen de: US2025337043A1
An embodiment battery cooling system for a vehicle includes a battery pack and a plurality of battery cells disposed in the battery pack, wherein the battery pack includes a first air inlet and a second air inlet disposed in both ends in a width direction, respectively, and a first air outlet and a second air outlet disposed inside in the width direction, respectively.
Resumen de: WO2025225099A1
Provided is a method for producing a sulfide-based solid electrolyte, the method having: a raw material preparation step for preparing an electrolyte raw material containing an element other than sulfur among elements constituting the sulfide-based solid electrolyte, and elemental sulfur and forming a raw material aggregate; and a synthesis step for heating the raw material aggregate to synthesize the sulfide-based solid electrolyte, wherein in the raw material preparation step, a molar ratio of the elemental sulfur to a lithium element in the raw material aggregate is set to be 1.5 to 6.5.
Resumen de: WO2025225187A1
The main purpose of this disclosure is to provide an electrode mixture capable of suppressing an increase in battery resistance. For this purpose, the disclosure provides an electrode mixture containing an electrode active material, a sulfide solid electrolyte containing a lithium element, a sulfur element, and a phosphorus element, and an organic compound, wherein the organic compound has two or more benzene rings, and at least a portion of the organic compound is present between the electrode active material and the sulfide solid electrolyte.
Resumen de: WO2025225066A1
Disclosed is an inactivating agent for inactivating a nonaqueous secondary battery, the inactivating agent including: a redox shuttle agent which has a redox potential higher than that of the negative electrode active material of the nonaqueous secondary battery and lower than that of the positive electrode active material of the nonaqueous secondary battery at the Li reference potential; and N-methyl-2-pyrrolidone.
Resumen de: WO2025225070A1
A battery according to the present disclosure comprises: a current collector that has a first main surface and a second main surface which is on the opposite side from the first main surface; a first unit cell that is provided on the first main surface; and a second unit cell that is provided on the second main surface. The current collector has: a body part which is a portion sandwiched between the first unit cell and the second unit cell; and a protruding part which protrudes past a first side surface of the first unit cell and a second side surface of the second unit cell. When the thickness of a tip end of the protruding part is represented as t and the thickness of the body part is represented as T, the expression t<T is satisfied.
Nº publicación: WO2025225175A1 30/10/2025
Solicitante:
PANASONIC INTELLECTUAL PROPERTY MAN CO LTD [JP]
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Resumen de: WO2025225175A1
A secondary battery (10) is provided with: an electrode body (14) in which a positive electrode (11) and a negative electrode (12) are wound with a separator (13) therebetween; an electrolyte; a bottomed cylindrical outer can (16) that accommodates the electrode body (14) and the electrolyte; a sealing body (17) that closes an open end (16A) of the outer can (16); and an annular gasket (28) that is interposed between the outer can (16) and the sealing body (17). The bottom surface of the gasket (28) is provided with a protrusion (30) that protrudes further outward than the inner circumference of the outer can (16).
BOPI
Sede Electrónica
