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1748
resultados
Última actualización
08/05/2025 [07:42:00]
Resultados 1225 a 1250 de 1748
Resumen de: US2025132348A1
A method of forming a lithium ion battery, a lithium ion battery anode, and a lithium ion battery for a vehicle. The method includes exposing a first surface of a lithium layer to carbon dioxide gas and forming a lithium carbonate layer on the first surface of the lithium layer. The method further includes depositing a fluoropolymer layer on a second surface of the lithium carbonate layer to provide a lithium anode. The battery includes one or more battery cells including the anode for the lithium ion battery. The anode includes a lithium layer including a first surface, and a hybrid coating layer disposed on the first surface, wherein the hybrid coating layer includes a plurality of lithium fluoride domains and a plurality of lithium carbonate domains within a carbonaceous matrix.
Resumen de: US2025132342A1
An all-solid-state rechargeable battery including a positive electrode layer; a negative electrode layer; and a solid electrolyte layer between the positive electrode layer and the negative electrode layer, wherein the positive electrode layer includes a plate-shaped positive electrode current collector, and a positive electrode active material layer on the positive electrode current collector, the positive electrode layer includes an endothermic material that absorbs heat by a decomposition reaction, and a content of the endothermic material in the positive electrode layer is greater than or equal to about 1 part by weight and less than or equal to about 30 parts by weight, based on 100 parts by weight of the positive electrode active material layer.
Resumen de: US2025132324A1
A positive electrode active material of this disclosure has an O2-type structure and an amount of carbon of 500 ppm or less. A manufacturing method of a positive electrode active material of this disclosure includes exchanging at least some of Na ions of a Na-containing oxide having a P2-type structure with Li ions to obtain a Li-containing oxide having an O2-type structure, and heating the Li-containing oxide to reduce an amount of carbon in the Li-containing oxide.
Resumen de: US2025132369A1
A secondary battery manufacturing apparatus includes a seating table, a magazine seated on the seating table and in which at least one electrode plate is loaded in a first direction, a direction indicator provided with the magazine and indicating a relative direction of the magazine with respect to the seating table, and a direction recognition unit sensing the direction indicator and deriving a direction in which the magazine has been seated on the seating table, thereby preventing the magazine from being seated on a seating table in a reverse direction rather than a preset forward direction.
Resumen de: US2025132346A1
A method for producing a positive electrode composition, the method including: a first step of mixing a first agent containing a binding material and a first liquid medium, a second agent containing carbon black and a second liquid medium, and a third agent containing carbon nanotubes and a third liquid medium to obtain a mixed solution; and a second step of mixing the mixed solution and an active material to obtain a positive electrode composition.
Resumen de: US2025132377A1
A lithium sulfur battery, wherein the lithium sulfur battery comprises a cathode layer, a first solid electrolyte layer, a second solid electrolyte layer, and an anode layer in this order, wherein the first solid electrolyte layer comprises a sulfide solid electrolyte, and the second solid electrolyte layer comprises a polymer electrolyte and/or a gel electrolyte.
Resumen de: US2025132439A1
An embodiment provides a rechargeable battery module comprising a stack including a plurality of battery cells arranged along a first direction, a plurality of insulating assemblies positioned between the battery cells, a side plate positioned at a first end portion of the stack along a first direction and a second end portion opposite to the first end portion to support the battery cells, and an end plate positioned at a third end portion of the stack and a fourth end portion opposite to the third end portion along a second direction crossing the first direction to support the battery cells. The stack is positioned in a space surrounded by the side plate and the end plate, and a distance between at least the outermost battery cell disposed on the periphery of the stack and the battery cell adjacent to the outermost battery cell among the battery cells is at least greater than a distance between battery cells positioned adjacent to the center of the stack.
Resumen de: US2025132429A1
A battery with no roll groove comprising a cap, an outer washer, a casing and a rolled core, wherein the rolled core is accommodated in the casing, and the cap is electrically connected to the rolled core; a top portion of the casing is bent inward and tightly presses the outer washer against the cap, thereby fixing the rolled core in the casing; the casing has no roll groove structure. The outer washer comprises an outer washer top portion, the outer washer top portion being an annular structure, and the cap being exposed through a central round opening; and an outer washer bottom portion, disposed between the cap and the casing.
Resumen de: US2025132413A1
The present invention relates to a secondary battery module including a heat-absorbing sheet including a heat-absorbing agent and sandwiched between battery cells. The configuration of the present invention can suppress a rapid temperature rise of a secondary battery due to heat generation during high-speed charging and high-output discharging, internal short circuits, or the like, minimize damage such as ignition and smoking due to thermal runaway, and prevent or delay the chain explosion to other battery cells by absorbing and extinguishing the heat from battery cells that have reached abnormally high temperature. In addition, the expansion of the battery cell itself caused by the heat generation and temperature rise described above can be suppressed.
Resumen de: US2025132435A1
A battery module includes a cell assembly including a plurality of battery cells; and a case including a main plate supporting the cell assembly and a side wall extending from the main plate in a first direction. The main plate includes a central portion and an end region extending from the central portion. At least a portion of the central portion protrudes further in the first direction, than at least a portion of the end region, or is coplanar with the at least a portion of the end region.
Resumen de: US2025132417A1
An immersion-cooled battery module according to the present disclosure can includes a battery assembly with a plurality of battery units. A module case of the battery module can extend in a first direction and have an opening at least at one end in a first direction. The module case can accommodate the battery assembly and a cooling liquid in an internal space of the module case connected to the opening. A sealing cover is configured to airtightly seal the opening.
Resumen de: US2025132379A1
A solid electrolyte, a positive electrode, and an all-solid-state rechargeable battery, the solid electrolyte includes solid ion conductor particles; and a coating layer on a surface of the solid ion conductor particles, wherein the coating layer includes a compound represented by Chemical Formula 1 and a compound represented by Chemical Formula 2,Li3+aM1bX16+c Chemical Formula 1LiX2. Chemical Formula 2
Resumen de: US2025132378A1
An all-solid secondary battery including a cathode layer, an anode layer, and an electrolyte layer between the cathode layer and the anode layer, wherein the cathode layer includes a cathode current collector and a cathode active material layer on one surface of the cathode current collector, the anode layer includes an anode current collector and a first anode active material layer on one surface of the anode current collector, the first anode active material layer includes a composite anode active material, the composite anode active material includes a first metal oxide represented by MaOb (0
Resumen de: US2025132384A1
The present application relates to the field of sodium-ion batteries and discloses a solid electrolyte material, a solid electrolyte, a cathode material and a preparation method thereof, and a sodium-ion battery. A ratio of a peak intensity I(020) of a (020) crystal plane to a peak intensity I(421) of a (421) crystal plane obtained by X-ray Diffraction (XRD) of the solid electrolyte material satisfies 0.9≤I(020)/I(421)<1. A ratio of a peak area A(020) of the (020) crystal plane to a peak area A(421) of the (421) crystal plane obtained by XRD of the solid electrolyte material satisfies 0.45≤A(020)/A(421)<1. The solid electrolyte material has good crystallinity, high ionic conductivity, and good structural stability. The cathode material made from the solid electrolyte material has high capacity and excellent rate, cycle, and thermal stability.
Resumen de: US2025132396A1
An all-solid-state secondary battery includes a cell stack having a stack structure, and a protective member including a first thermoplastic resin layer, a second thermoplastic resin layer, and a third thermoplastic resin layer sequentially stacked, and being disposed on a peripheral portion, in which the cathode layer is not disposed, of the solid-state electrolyte layers, while being interposed between the two solid-state electrolyte layers disposed to be adjacent to each other such that the cathode layer is interposed between the two solid-state electrolyte layers. A glass transition temperature of the first thermoplastic resin layer and a glass transition temperature of the third thermoplastic resin layer are lower than a glass transition temperature of the second thermoplastic resin layer.
Resumen de: US2025132333A1
A lithium secondary battery including a cathode. The cathode includes a cathode current collector and a cathode active material layer on one or both sides of the cathode current collector and including a cathode active material, a gamma sulfur-fibrous carbon-based material composite, and a sulfide-based solid electrolyte, wherein the cathode active material includes Li2S, a Li2S composite, or a combination thereof, and the gamma sulfur-fibrous carbon-based material composite has a structure in which monoclinic gamma phase sulfur (S) is on a fibrous carbon-based material.
Resumen de: US2025132459A1
Disclosed are a battery, and a battery diaphragm and a manufacturing method therefor, which belong to the field of batteries. The battery diaphragm has a composite structure constituted by a first member and a second member. The diaphragm comprises: the first element is manufactured from a modification material provided to improve the thermal stability of the diaphragm, the first element being a stack of nanowires distributed in layers; and the second element is manufactured from a base material provided to serve as the body of the diaphragm, the first element being loaded on the second element and supported by the second element. The battery diaphragm has a good thermal stability.
Resumen de: US2025132410A1
A battery pack includes a battery housing having a battery cell accommodating space portion accommodating a plurality of battery cells, a lower space portion under the battery cell accommodating space portion, and a battery cell base portion between the lower space portion and the battery cell accommodating space portion and supporting the plurality of battery cells. The battery cell base portion includes: a base melting portion configured to melt if an adjacent one of the battery cells is heated to a reference temperature or greater; and a base non-melting portion configured to not melt if the adjacent one of the battery cells is heated to the reference temperature or greater.
Resumen de: US2025132414A1
A battery assembly for a heat exchanger, comprising a tube bundle provided with tubes and a shoulder assembly provided with a front jig bearing holes for the passage of said tubes, wherein said front jig is fixed on the frame of the battery assembly by means of respective uprights. According to the invention, the aforementioned front jig is mounted with adjustable positioning on the aforementioned battery assembly, so as to correct centering errors of the tubes relative to the aforementioned holes of the jig. Compared to the battery assemblies of the prior art, the one according to the present invention offers the advantage of having shoulder assemblies equipped with a floating jig, i.e., mounted sliding on the frame of the battery assembly, so as to allow correcting the centering errors between the holes of the shoulder jig and the tubes that pass through them.
Resumen de: US2025132449A1
An arrangement which includes a connector mounted over an opening of a battery casing, delimiting a gas flow channel. A cover is fitted onto an annular body of the connector to cover the channel in a non-sealing manner, an internal membrane provided in the channel allowing filtration. The axial fitted position of the cover, locked by a locking member, is a position in which: a tip of the cover is placed in the vicinity of the membrane which can thus be torn in the event of critical deformation towards the tip under the effect of an overpressure prevailing against the cover; and the member abuts axially against the connector. The member can deform in order to unlock the fitting of the cover when the overpressure in the channel exceeds a threshold at the time of or after the tearing of the membrane.
Resumen de: US2025132322A1
A secondary battery is described. The secondary battery includes a positive electrode plate, a negative electrode plate, and an electrolyte solution. The positive electrode plate includes a positive current collector and a positive electrode film layer disposed on at least one surface of the positive current collector. The positive electrode film layer includes a positive active material. The positive active material includes: S1) a lithium-containing compound of an olivine structure, and S2) a vanadium oxide represented by a general formula j(M2O) ·kVOx, where M is one or more of alkali metals, 0≤j≤1, 1≤k≤5, 1≤x≤2.5, a difference of a discharge platform voltage between S1 and S2 is E, and 0.2 V≤E≤2.8 V.
Resumen de: US2025132329A1
A secondary battery includes a first cathode group in which first cathodes are stacked adjacent to each other, a second cathode group in which second cathodes are stacked adjacent to each other, and anodes facing the first cathode or the second cathode. Each of the first cathodes includes a first cathode current collector and a first cathode active material layer on the first cathode current collector. Each of the second cathodes includes a second cathode current collector and a second cathode active material layer on the second cathode current collector. The second cathode active material layer has a different active material composition or a different stacked structure from that of the first cathode active material layer.
Resumen de: US2025132332A1
A nickel-based active material, a positive electrode including the same, and a lithium secondary battery including the positive electrode, a negative electrode, and an electrolyte between the positive electrode and the negative electrode are provided. The nickel-based active material includes 80 mol % or more of nickel with respect to the metal elements excluding lithium, and the nickel-based active material includes: i) large secondary particles having a size in a range of 10 μm to 20 μm and including aggregates of primary particles having a size of 1 μm or less; ii) large crystal particles including primary particles having a size in a range of 1 μm to 5 μm; and iii) small secondary particles having a size in a range of 1 μm to 7 μm and including aggregates of primary particles having a size of 1 μm or less.
Resumen de: US2025132323A1
In various aspects, methods of making a silicon carbide or silicon nitride from rice hull ash (RHA) byproduct are provided. A treated silica depleted rice hull ash product (SDRHA) comprising silicon oxide at ≤about 65% by weight and carbon ≥about 35% by weight may be heated in an environment free of any additional carbon sources, but in an inert atmosphere, having a temperature of ≥about 1,200° C. to ≤about 1,700° C. for a carbothermal reaction that forms a product (e.g., nanocomposite product) comprising at least one of silicon carbide (SiC), silicon nitride (Si3N4), and silicon oxynitride (Si2N2O or non-stoichiometric SiNxO4-x, where x ranges from greater than 0 to less than 4). A negative electroactive material is also provided that includes silicon oxynitride (Si2N2O), which may be used in a lithium ion battery.
Nº publicación: US2025132420A1 24/04/2025
Solicitante:
DANA CANADA CORP [CA]
Dana Canada Corporation
Resumen de: US2025132420A1
The present disclosure relates to a thermally controlled energy storage device for electric vehicles, having high thermal evacuation capabilities.The device includes:a plurality of electrical cellsa first heat exchange device comprising a heat pipe in heat exchange capacity with one side of the cells and a cold source of a second heat exchange device, the cold source comprising at least two cold plates.The second heat exchange device comprises at least one pulsed heat pipe having:a first wing extending under a condensation part of the gravity heat pipe and in heat exchange capacity with part of the cell edgea second wing extending in exchange capacitywith at least one of the cold plates;a web connecting the wings.
BOPI
Sede Electrónica
