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1719
resultados
Última actualización
07/06/2025 [07:24:00]
Resultados 1275 a 1300 de 1719
Resumen de: US2025174649A1
A cathode material has the chemical formula Li4+δMx1M′y1M″z1O8 or Li2+δMx2M′y2M″z2O4 where 0≤δ≤1, x1, y1, z1 are integers (+/−0.5) and x1+y1+z1=4, and x2, y2, z2 are integers (+/−0.05) and x2+y2+z2=2. A method for discovering a cathode material includes estimating synthesizability for a plurality of cathode material compositions, selecting a first subset of cathode material compositions from the plurality of cathode material compositions as a function of the estimated synthesizability and metal-ion diffusion availability, estimating voltage discharge, charge capacity, and oxygen stability for the first subset of cathode material compositions, and selecting a second subset of cathode material compositions from the first subset plurality of cathode material compositions as a function of the estimated voltage discharge, charge capacity, and oxygen stability.
Resumen de: US2025174647A1
The present invention relates to a lithium manganese-based oxide positive electrode active material comprising an outer layer of Al for lithium-ion secondary batteries (LIBs) suitable for electric vehicle (EV) and hybrid electric vehicle (HEV) applications.
Resumen de: US2025174648A1
The present disclosure relates to a ternary positive electrode material for lithium-ion batteries, having a coated type structure. The core of the coated type structure includes a lithium composite metal oxide, and the outer coating in a form of wrinkles. The wrinkled outer coating is coated on a surface of the lithium composite metal oxide, and mainly is a cobalt-containing lithium metal oxide. The positive electrode material is prepared by: mixing a lithium source and a ternary precursor material at a molar ratio, subjecting the resulting mixture to multi-stage high-temperature sintering in an oxygen atmosphere, and cooling the resulting sinter to room temperature; and mixing the resulting lithium composite metal oxide with a cobalt source, or with the cobalt source and an M-containing compound, and then sintering the resulting mixture in an oxygen atmosphere to obtain the ternary positive electrode material.
Resumen de: US2025174698A1
An electrode plate transfer device and method are disclosed. An electrode plate transfer device includes a base part, a rotation providing part mounted on the base part and configured to provide a rotational force, a linear driving part linearly movable by the rotation providing part, and a transfer part connected to the linear driving part and supported by the base part so as to move an electrode plate.
Resumen de: US2025174640A1
Materials and methods for a coated active electrode material for use in a lithium-ion battery is provided. In one example, a coating for an active electrode material or active electrode material precursor of an electrode of a battery cell may include lithium, boron, and oxygen. In particular, the coating may include lithium tetraborate (LBO), and the coating may be coated on a lithium insertion electrode active material such as lithium nickel manganese cobalt oxide (LiNixMnyCo1-x-yO2 or NMC).
Resumen de: US2025171311A1
Carbon nanotubes have a bulk density X of 0.095 g/cm3 or more and 0.125 g/cm3 or less, a Zr content of 5 ppm or more and 500 ppm or less, and a maximum solvent absorption capacity Y of carbon nanotubes defined by formula (5) below of 8.0 or more,Y=W/Vforumla(5)(in formula (5), V is a mass (g) of carbon nanotubes, and W is a maximum mass (g) of N-methyl-2-pyrrolidone absorbed by carbon nanotubes when N-methyl-2-pyrrolidone is added dropwise to V (g) of carbon nanotubes in a 25° C. environment).
Resumen de: US2025171331A1
A method of preparing cathode active material precursors includes feeding a first reaction liquid into a first Couette-Taylor reactor and performing a co-precipitation reaction to continuously form and output a first product liquid stream containing a plurality of core particles; feeding the first product liquid stream into a second Couette-Taylor reactor that is connected in series after the first Couette-Taylor reactor; and feeding a second reaction liquid into the second Couette-Taylor reactor to react with the core particles, so as to form the cathode active material precursors. The first reaction liquid is a multi-element metal solution, the second reaction liquid is a transition metal aqueous solution, and each of the cathode active material precursors has a core-shell structure.
Resumen de: US2025174758A1
A heat exchange plate comprises a heat exchange area and a battery area, the heat exchange area being arranged around the battery area; and a flow channel, wherein the flow channel is arranged in the heat exchange plate, and is configured to allow a heat exchange working medium to flow therein, a first flow channel is located in the heat exchange area, and second flow channels are distributed in the battery area.
Resumen de: US2025174760A1
One or more embodiments of the present disclosure may include a rechargeable battery pack that includes unit batteries neighboring each other, a case including an internal space for accommodating the unit batteries, fire-extinguishing agents spaced from the unit batteries and configured to generate a solid aerosol at a set temperature, and a medium between the fire-extinguishing agents.
Resumen de: US2025174744A1
A deformation detection apparatus includes a cell movement-control assembly to handle a linear motion and a rotational motion of a battery cell, a body that supports the cell movement-control assembly, a digital micrometer, and control circuitry. The control circuitry controls a displacement of the battery cell between a first position and a second position along a longitudinal axis through a scanning region of the digital micrometer and a plurality of rotational positions of the battery cell at a plurality of charge states and a plurality of discharge states. The control circuitry measures a plurality of outer diameter values of the battery cell for a plurality of linear positions and a plurality of rotational positions along the longitudinal axis of the battery cell and determines a change in a geometrical shape (deformation and/or strain) of the battery cell for the plurality of linear positions and the plurality of rotational positions.
Resumen de: US2025174753A1
Provided is a secondary battery including an electrode assembly including a first electrode plate, a separator, and a second electrode plate, a case accommodating the electrode assembly, a cap plate sealing the case, a first terminal electrically connected to the first electrode plate, and exposed to outside the cap plate, a cooling member inside the case, and contacting the electrode assembly, and a cooling terminal coupled to the cooling member, and exposed to outside of the cap plate.
Resumen de: US2025174807A1
An electricity storage apparatus includes: an electricity storage module having a stacked electrode body; an exterior body that houses the electricity storage module and forms a sealed inner space between the exterior body and the electricity storage module; and first piping that discharges gas contained in the inner space to an outside of the electricity storage apparatus. The air pressure of the inner space of the electricity storage apparatus is maintained to be a negative pressure with respect to the air pressure of an outer space of the electricity storage apparatus by a suction apparatus that suctions gas via the first piping.
Resumen de: US2025174643A1
A disclosed non-aqueous electrolyte secondary battery includes a negative electrode. The negative electrode includes a negative electrode mixture containing a lithium titanium composite oxide as a negative electrode active material, an additive, and a boron compound which are mixed with one another. A disclosed method of manufacturing a negative electrode mixture for a non-aqueous electrolyte secondary battery includes a mixing step of mixing a lithium titanium composite oxide as a negative electrode active material, an additive, and a boron compound.
Resumen de: US2025174734A1
An electrochemical device includes a positive electrode, a negative electrode, and a separator located between the positive electrode and the negative electrode. A first surface of the positive electrode has a concave region, a second surface of the positive electrode has a convex region corresponding to the concave region, and a gap is formed between the positive electrode and the negative electrode via the convex region, or a gap is formed between the first surface of the positive electrode and the negative electrode via the concave region.
Resumen de: US2025174652A1
An electrode includes a current collector and an electrode active material layer located on at least one side of the current collector. The electrode active material layer includes a sulfur-carbon composite and a binder, and the sulfur-carbon composite includes a porous carbon material and a sulfur-based material. The current collector includes aluminum (Al), and has a thickness of about 9 μm or less.
Resumen de: US2025174752A1
A battery pack includes battery cells, a housing accommodating the battery cells, a bus bar electrically connecting the battery cells, a holder portion fixing a bottom portion and a side portion of the battery cells, a cooling unit under the holder portion to cool the battery cells, and a filling portion contacting a surface portion of the battery cells between the plurality of battery cells and the cooling unit. The filling portion is covers at least part of the bottom portion of the battery cells and at least part of the side portion of the battery cells.
Resumen de: US2025174620A1
The manufacturing of a dry electrode includes the use of a fluidization apparatus. The fluidization apparatus is configured to mix a supplied dry electrode mixture with a fluid in order to fluidize the dry electrode mixture and to supply the fluidized dry electrode mixture to a film-making apparatus. The fluidization apparatus includes a chamber formed in a housing, the chamber being configured to receive the dry electrode mixture, an inlet configured to allow a fluid to enter the chamber, and an outlet configured to allow the fluid in the chamber to be discharged therethrough.
Resumen de: US2025174852A1
The present disclosure proposes a battery disconnect unit, and relates to the technical field of batteries. The battery disconnect unit includes an electrical element and an electric connection assembly. The electric connection assembly includes first conducting bars and second conducting bars. A number of first conducting bars and a number of second conducting bars are arranged. The first conducting bar includes a first conducting piece body and a first connection portion connected to each other. The second conducting bar includes a second conducting piece body and a second connection portion connected to each other. A number of first conducting piece bodies and a number of second conducting piece bodies are arranged at intervals on respective planar layers. The first connection portions and the second connection portions are electrically connected to the electrical element respectively. The planar layer where the first conducting piece bodies are located and the planar layer where the second conducting piece bodies are located are set in a stacked manner, so that arrangement areas of the conducting pieces on the respective planar layers are extended, and the connection portions are connected to the electrical element, which avoids occupying an additional perpendicular space, making an overall layout more compact, and realizing a light and thin design of the battery disconnect unit.
Resumen de: US2025174861A1
A battery pack drain assembly includes a drain housing having an outer wall that is annular and an inner wall that is annular, an annular channel defined between the outer wall and the inner wall, and a primary drain valve disposed at least partially within the inner wall. The primary drain valve is configured to open when liquid in the drain housing reaches a top of the inner wall.
Resumen de: US2025174748A1
The current disclosure relate to processes and systems for discharging of rechargeable battery cells, said battery cells having electric poles and one or more vents, the method comprising puncturing a vent of a battery cell, submerging the battery cell in a discharge medium such that at least the electric poles and the punctured vent of the battery cell are covered with the discharge medium, wherein the discharge medium is an electrically conductive fluid, discharging the one or more battery cell until it has reached a target cell voltage threshold by allowing the battery cell to be submerged in the discharge medium for a predetermined processing time t, wherein the target cell voltage threshold is above 0V, then removing the one or more battery cell from the discharge medium.
Resumen de: US2025174859A1
A battery pack fire extinguisher for an electric vehicle includes: a pack case in the electric vehicle and accommodating a plurality of battery modules; an extinguishing tube between adjacent ones of the battery modules in the pack case; an extinguishing agent cylinder selectively connected to the extinguishing tube and mounted in the electric vehicle and configured to supply an extinguishing agent; an extinguishing water connector selectively connected to the extinguishing tube and configured to supply external extinguishing water; and a one-way flow valve to prevent backflow of the extinguishing agent or extinguishing water when selectively connecting the extinguishing agent cylinder or the extinguishing water connector to the extinguishing tube, respectively.
Resumen de: US2025174815A1
A battery pack has a plurality of laminated battery cells each including a safety valve, an end plate which is provided at an end in a lamination direction of the battery cells, an exhaust duct which connects the safety valves of the battery cells and extends in the lamination direction, a case which accommodates the battery cells, the end plate and the exhaust duct, and a pressure relief valve which is attached to a surface of the case facing the end plate and is configured to exhaust gas discharged from the safety valves out of the case. A space and a plurality of flow paths are provided between the exhaust duct and the pressure relief valve. The space is formed around the end plate and communicates with the exhaust duct. The flow paths are configured to allow the space to communicate with the pressure relief valve.
Resumen de: US2025174824A1
Modified polyphenylene sulfide (PPS) and a PPS modification method, a PPS solid separator, a prefabricated zinc salt separator and a manufacturing method thereof, a to-be-filled zinc-manganese secondary battery and a manufacturing method, a formation method and an application method thereof are provided. Through hydrothermal synthesis, tetrachlorobenzoquinone in PPS powder undergoes a dechlorination and hydrogenation reaction to form molecules with a chlorocatechol structure, to improve the adsorption performance of the PPS solid separator towards harmful molecules. Moreover, in combination with the protection of welding spots during the battery assembly process, and a formation method involving injection of an aqueous electrolyte solution followed by alcohol during the formation process, the cycling stability of the battery is improved and the service temperature range of the battery is broadened.
Resumen de: US2025174746A1
An electrical energy storage module has multiple electrical energy storage cells arranged next to each other in a stacking direction. A measurement circuit is arranged on a substrate on a top side of the stack of multiple electrical energy storage cells for connection to electrodes of the multiple electrical energy storage cells. A portion of the substrate of the measurement circuit extends downwards on a side surface of the stack of multiple electrical energy storage cells, the side surface extending away from the top surface. The portion of the substrate has at least two conducting surfaces electrically connected with the measurement circuit, and the measurement circuit detects a variation in electrical resistance between the at least two conducting surfaces caused by a liquid next to the electrical energy storage module.
Nº publicación: US2025174860A1 29/05/2025
Solicitante:
GM GLOBAL TECH OPERATIONS LLC [US]
GM Global Technology Operations LLC
Resumen de: US2025174860A1
A vehicle includes a battery pack having a drain assembly. The battery pack is disposed within a housing. The drain assembly includes a conduit extending from a first end located within a housing of the battery pack to a second end outside of the housing. A valve within the conduit controls flow of a first fluid from the first end to the second end. An exterior sensor located exterior to the housing detects a presence of a second fluid outside of the housing. A processor places the valve in a closed state when the exterior sensor determines the presence of the second fluid to prevent the second fluid from flowing into the housing.
BOPI
Sede Electrónica
