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1274
resultados
Última actualización
10/05/2026 [07:10:00]
Resumen de: US20260125776A1
In a method for recovering an active metal of a lithium secondary battery, a sulfuric acid solution is added to a lithium metal composite oxide so as to prepare a sulfated active material solution. A transition metal is extracted from the sulfated active material solution. A lithium precursor is recovered by adding a lithium extracting agent to the solution remaining after the transition metal has been extracted from the sulfated active material solution. In the method, the amount of impurities is reduced, and sulfuric acid and the neutralizing agent can be recycled so that a high-yield lithium precursor recovery is enabled.
Resumen de: US20260124635A1
0000 A coating die and an electrode plate coating device, where the coating die is provided with an inlet, a first distribution cavity, a plurality of distribution channels, and a plurality of coating outlets is described. The plurality of coating outlets are spaced apart along a first direction. Each distribution channel is provided with an inlet port and an outlet port at two respective ends thereof. The inlet port is in communication with the inlet, each outlet port is oriented toward a corresponding coating outlet, and cross-sectional areas of the inlet ports of all of the plurality of distribution channels are equal. The cross-sectional areas of all the inlet ports of the distribution channels are equal and the outlet port of each distribution channel corresponds to a respective coating outlet, the slurry can be evenly distributed and guided to the plurality of coating outlets under the action of the distribution channels.
Resumen de: US20260128483A1
0000 A battery case includes: a plurality of battery branches, where the plurality of battery branches are connected in parallel, and each of the plurality of battery branches includes a battery; branch interfaces arranged corresponding to the battery branches, where the branch interfaces are electrically connected to the corresponding battery branches, and are configured to be connected to an external battery case; a high-voltage power distribution module, electrically connected to the battery branches and configured to perform power distribution management and monitoring on the battery branches; and a main circuit output interface, electrically connected to the battery branches and the high-voltage power distribution module and configured to be connected to a power supply interface of a vehicle. The plurality of battery branches connected in parallel are used to provide electrical energy, and the branch interfaces are provided to connect the external battery case.
Resumen de: US20260128361A1
0000 Systems and methods for batteries comprising a cathode, an electrolyte, and an anode, wherein functional aliphatic and/or aromatic amine compounds or derivatives are used as electrolyte additives to reduce gas generation in Li-ion batteries.
Resumen de: US20260128276A1
0000 Systems and methods are provided for carbon additives for direct coating of silicon-dominant anodes. An example composition for use in directly coated anodes may include a silicon-dominated anode active material, a carbon-based binder, and a carbon-based additive, with the composition being configured for low-temperature pyrolysis. The low-temperature pyrolysis may be conducted at <600° C. An anode may be formed using a direct coating process of the composition on a current collector. The anode active material yields silicon constituting between 86% and 97% of weight of the formed anode after pyrolysis. The carbon-based additive yields carbon constituting between 2% and 6% of weight of the formed anode after pyrolysis.
Resumen de: US20260125265A1
0000 A composite positive electrode material, a preparation method thereof and a use thereof, where the composite positive electrode material includes an inner core and a carbon coating layer covering at least part of a surface of the inner core and/or embedded in the inner core; the inner core includes NaFePO<4 >and a compound represented by Formula 1; Na<4+x>Fe<3-y>(PO<4>)<2+z>P<2>O<7 >Formula 1; in Formula 1, −0.15≤x≤0.8, 0≤y≤0.5, and −0.2≤z≤0.2; and a crystal size of NaFePO<4 >is ≤100 nm. The composite positive electrode material, when used in batteries, can improve the capacity and rate capability of the batteries.
Resumen de: US20260124640A1
A coated film having good characteristics is manufactured. A method for manufacturing the coated film includes: (a) a step of applying a coating liquid 20a to a first surface of a base material 1 unwound from an unwinding unit UW; (b) a step of forming a coating layer 3b on the first surface of the base material 1 by drying the coating liquid (coating film 3a) on the base material 1; and (c) a step of winding the base material 1 on which the coating layer 3b has been formed in a winding unit WD. Also, the base material 1 is continuously arranged from the unwinding unit UW to the winding unit WD, tension cut of the base material 1 is performed by a first suction roll SR after the base material 1 is taken out from the unwinding unit UW and before the step (b), and tension cut of the base material 1 on which the coating layer 3b has been formed is performed by a second suction roll SR before the step (c).
Resumen de: US20260128313A1
0000 A protective material for protecting a lithium metal sheet, in particular a lithium metal anode. The material comprises a metal fluoride such as AlF<3 >and a fluoro alkylene carbonate such as fluoro ethylene carbonate (FEC). A method for using the protective material is provided.
Resumen de: US20260125283A1
0000 Provided is a bimodal-type positive electrode active material precursor comprising first positive electrode active material precursor particles and second positive electrode active material precursor particles having different average particle diameters (D<50>), and having an improved packing density per unit volume.
Resumen de: US20260128294A1
0000 A lithium titanium composite oxide including aluminum-coated primary particles and a method for manufacturing the same are disclosed. A lithium titanium composite oxide including aluminum-coated primary particles according to an embodiment is manufactured by coating lithium titanium oxide primary particles with aluminum by mixing an aluminum compound with re-pulverized particles and then by spray-drying the mixture again to prepare secondary particles. A battery including the lithium titanium composite oxide including the aluminum-coated primary particles exhibits effects of suppressing electrolyte decomposition and gas generation that may be respectively caused by titanium ions and residual lithium in conventional lithium titanium composite oxides.
Resumen de: US20260128278A1
0000 The present invention provides an electrode for a lithium secondary battery, which includes an electrode current collector, an electrode active material layer formed on the electrode current collector, and an insulating layer formed on the electrode current collector and overlapping the electrode active material layer in a partial region. Here, when the thickness of the electrode active material layer in the region in which the electrode active material layer and insulating layer do not overlap is d<1>, and the thickness of the insulating layer in the region in which the electrode active material layer and insulating layer do not overlap is d<2>, d<2>/d<1 >is 0.02 to 0.4.
Resumen de: US20260128401A1
In an aspect, provide is an alkaline rechargeable battery comprising: i) a battery container sealed against the release of gas up to at least a threshold gas pressure, ii) a volume of an aqueous alkaline electrolyte at least partially filling the container to an electrolyte level; iii) a positive electrode containing positive active material and at least partially submerged in the electrolyte; iv) an iron negative electrode at least partially submerged in the electrolyte, the iron negative electrode comprising iron active material; v) a separator at least partially submerged in the electrolyte provided between the positive electrode and the negative electrode; vi) an auxiliary oxygen gas recombination electrode electrically connected to the iron negative electrode by a first electronic component, ionically connected to the electrolyte by a first ionic pathway, and exposed to a gas headspace above the electrolyte level by a first gas pathway.
Resumen de: AU2026203047A1
There is provided a process for preparing a metal hydroxide comprising (i) at least one metal chosen from nickel and cobalt and optionally (ii) at least one metal chosen from manganese, lithium and aluminum, said process comprising: reacting a metal sulfate comprising (i) at least one metal chosen from nickel and cobalt and optionally (iii) at least one metal chosen from manganese and aluminum with sodium hydroxide and optionally a chelating agent in order to obtain a solid comprising said metal hydroxide and a liquid comprising sodium sulfate; separating said liquid and said solid from one another to obtain said metal hydroxide; submitting said liquid comprising sodium sulfate to an electromembrane process for converting said sodium sulfate into sodium hydroxide; and reusing said sodium hydroxide obtained by said electromembrane process for reacting with said metal sulfate. pr p r
Resumen de: US20260128368A1
0000 A sulfide solid electrolyte, and a preparation method thereof and a use thereof, where the sulfide solid electrolyte has a chemical composition of LiSbP
Resumen de: US20260128366A1
0000 The instant disclosure sets forth multiphase lithium-stuffed garnet electrolytes having secondary phase inclusions, wherein these secondary phase inclusions are material(s) which is/are not a cubic phase lithium-stuffed garnet, but which is/are entrapped or enclosed within a lithium-stuffed garnet. When the secondary phase inclusions described herein are included in a lithium-stuffed garnet at 30-0.1 volume %, the inclusions stabilize the multiphase matrix and allow for improved sintering of the lithium-stuffed garnet. The electrolytes described herein, which include lithium-stuffed garnet with secondary phase inclusions, have an improved sinterability and density compared to phase pure cubic lithium-stuffed garnet having the formula Li<7>La<3>Zr<2>O<12>.
Resumen de: US20260125276A1
0000 A positive electrode active material has a chemical formula of Na
Resumen de: US20260124479A1
The description relates to battery safety and more specifically to containing battery fires. One example can include displacement sub-systems configured to physically separate an affected battery pack from other battery packs. Another example can include a 3D deployable fire curtain configured to automatically deploy around a battery pack to limit the spread of fire between battery packs. A further example can include a media reservoir positioned over a battery pack that is configured to hold non-combustible smothering media. A media retainer can be interposed between the battery pack and the media reservoir and configured to automatically release the non-combustible smothering media into the battery pack support structure when the battery pack experiences a fire.
Resumen de: US20260128292A1
A secondary battery comprises a positive electrode plate and a negative electrode plate. The negative electrode plate comprises a negative electrode active material layer. The negative electrode active material layer comprises a negative electrode active material. The negative electrode active material comprises a silicon-based material. In the same charging and discharging cycle process, the volume ratio of the negative electrode plate during charging and discharging of the secondary battery is R, wherein R is less than or equal to 1.5; and the volume ratio of the positive electrode plate during charging and discharging of the secondary battery is Y, wherein Y is less than or equal to 0.98.
Resumen de: US20260126494A1
0000 In an example, a battery management system may include a host microcontroller, which may be operated in accordance with a first clock signal; and a first analog front end (AFE) circuit. The first AFE circuit may be operated in accordance with a second clock signal that may be unsynchronized with the first clock signal. The first AFE circuit may also include first digital circuitry to (1) accumulate a first value corresponding to a number of ADC sample cycles of the first ADC, and to (2) accumulate a second value corresponding to the digital output representative of the first battery current for the ADC sample cycles accumulated in the first value. The first AFE circuit may transfer a representation of the first value and a representation of the second value to the host microcontroller in response to a request from the host microcontroller.
Resumen de: US20260128430A1
Provided is a secondary battery that can improve structural efficiency. The secondary battery includes: a power generating element; and an exterior part housing the power generating element thereinside, wherein the exterior part has: a cylindrical part having openings in respective two facing faces thereof; inner lids placed in the openings, respectively; and first resin placed so as to cover each of the openings, and each face of the inner lids on opening sides, the first resin is placed so as to fill each space between the cylindrical part and the inner lids, and the cylindrical part and the inner lids are united into one body with the first resin.
Resumen de: US20260128314A1
0000 The present invention relates to: a copolymer composition comprising a first copolymer comprising an acrylic acid-based monomer unit and an acrylamide-based monomer unit, and a second copolymer comprising a vinyl pyrrolidone-based unit, an acrylate-based monomer unit comprising a hydroxyl group, and an acrylamide-based monomer unit; and a negative electrode slurry, a negative electrode, and a secondary battery comprising the copolymer composition.
Resumen de: US20260128386A1
An electrode assembly having a first electrode, a second electrode, and a separator positioned between the first electrode and the second electrode. The first electrode, the second electrode, and the separator are together wound about an axis in a winding direction resulting in a plurality of winding turns. Each of the first electrode and the second electrode has a first side and a second side opposite the first side in the direction of the axis, as well as a first, electrode active material portion, coated with an electrode active material, extending from the second side in the direction of the first side, and a second, uncoated portion extending from the first side in the direction of the second side to the active material of the first portion. Additionally, the first side of the first electrode and the first side of the second electrode are divided into a plurality of segments by a cut groove, and each of the segments has a first end corresponding to the first side of either the first or the second electrode. One or more of the segments are bent in a radial direction relative to the axis, at a point below the first end of each bent segment, and the separator has a side that is positioned between the bending point of each bent segment and a boundary between the first and the second portions.
Resumen de: US20260128303A1
A positive electrode material, a preparation method thereof and a lithium-ion battery are provided. A first aspect provides a positive electrode active material, where a chemical composition of the positive electrode active material is Li1+aNixCoyM1zM2bO2±cAd, M1 is one or two of Mn or Al, M2 is one or more of Zr, Mg, Ti, Te, Al, Ca, Sr, Sb, Nb, Pb, V, Ge, Se, W, Mo, Zn, Ce, or Y; and A is one of F, Cl, or S. By controlling the Ni content in secondary particles of different particle sizes, the problem of non-uniform degradation of the secondary particles of different particle sizes during battery cycling can be avoided, thereby improving the cycling stability of lithium-ion batteries.
Resumen de: WO2026092002A1
The present application relates to the technical field of batteries. Disclosed are a battery case and a battery. The battery case comprises: a case body having an opening; and a cover plate that seals the opening to form an accommodating cavity, wherein the cover plate comprises a cover plate body and a folded edge arranged at an edge of the cover plate body; the folded edge extends in a direction facing away from the accommodating cavity; the folded edge is welded to the case body; a welding area is formed at the position where the folded edge and the case body are welded; in the extension direction of the folded edge, the cover plate body is located on the side of the welding area close to the accommodating cavity; and in a direction perpendicular to the upper surface of the cover plate body, the distance from the side of the welding area close to the accommodating cavity to the upper surface of the cover plate body is h, and the distance from the side of the folded edge away from the accommodating cavity to the side of the cover plate body close to the accommodating cavity is H, where 0.17≤h/H≤0.5. The present application can ensure that the cover plate can provide a buffering effect, thereby preventing the cover plate from detaching from the case body during thermal runaway, and the present application can also control the overall height of the cover plate to ensure the internal space of the case body, thereby ensuring the energy density of a battery cell.
Nº publicación: US20260125277A1 07/05/2026
Solicitante:
NINGBO RONBAY NEW ENERGY TECH CO LTD [CN]
Ningbo Ronbay New Energy Technology Co.,Ltd.
Resumen de: US20260125277A1
The present application provides a positive electrode material, a preparation method thereof, a positive electrode sheet and an all-solid-state battery. The positive electrode material includes a lithium-rich manganese-based positive electrode active material and a coating layer covering at least part of a surface of the lithium-rich manganese-based positive electrode active material, where a molecular formula of the lithium-rich manganese-based positive electrode active material is xLi2-αMnO3·(1−x)Li1-βNiaCobMncO2-γ, where a+b+c=1, 0<α+β≤0.2, 0<γ≤0.1, and 0
BOPI
Sede Electrónica
