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1111
resultados
Última actualización
25/01/2026 [07:40:00]
Resultados 600 a 625 de 1111
Resumen de: US20260018764A1
A battery cell comprises a housing, an electrode assembly, a pressure relief mechanism, and a first insulating member, wherein the housing comprises a wall portion; and the electrode assembly is accommodated in the housing. The pressure relief mechanism is arranged on the wall portion, and the pressure relief mechanism comprises a pressure relief body and a first weak portion arranged around the pressure relief body, the pressure relief body and the first weak portion forming a first pressure relief area. At least part of the first insulating member is arranged between the first pressure relief area and the electrode assembly, the first insulating member is provided with a first through hole, and in the direction of thickness of the wall portion, the projection of the first through hole is located in the projection of the first pressure relief area.
Resumen de: US20260018762A1
Disclosed are a battery cell, a battery, and an electric device. The battery cell includes an electrode assembly, a positive electrode lead-out portion, a positive electrode connecting assembly, a negative electrode lead-out portion, and a negative electrode connecting assembly; the positive electrode connecting assembly is connected to a positive plate and the positive electrode lead-out portion; the negative electrode connecting assembly is electrically connected to a negative plate and the negative electrode lead-out portion; a minimum current-carrying cross-sectional area of the positive electrode connecting assembly is smaller than a current-carrying cross-sectional area of the positive electrode lead-out portion, a melting point of the positive electrode connecting assembly is smaller than a melting point of the negative electrode connecting assembly, and the minimum current-carrying cross-sectional area of the positive electrode connecting assembly is A1, with a unit of mm2.
Resumen de: US20260018759A1
A battery pack includes a box, a battery unit, a busbar device, and a temperature measurement device. The temperature measurement device includes at least one first temperature measurement element and at least one second temperature measurement element, the first temperature measurement element is arranged in contact with the shell of the corresponding battery cell, and the second temperature measurement element is arranged in contact with the terminal post of the corresponding battery cell and/or the corresponding busbar device, the at least one second temperature measurement element is located in an end area on one side of the box along the first direction, the at least one second temperature measurement element is located in an end area on the other side of the box along the first direction, and the at least one second temperature measurement element is located in a middle area of the box along the first direction.
Resumen de: US20260018765A1
A battery cell comprises an electrode assembly, a shell, an electrode terminal, an insulating member, and a protective member. The shell comprises a wall portion provided with an electrode lead-out hole. The electrode assembly is accommodated in the shell and comprises a tab. The electrode terminal is electrically connected to the tab. The electrode terminal comprises a terminal body passing through the electrode lead-out hole and a fixing portion connected to the terminal body. The insulating member is arranged surrounding the terminal body. At least a portion of the insulating member is located between the fixing portion and the wall portion to isolate, in an insulated manner, the fixing portion from the wall portion. The protective member is arranged surrounding the terminal body and in contact with the insulating member.
Resumen de: US20260018672A1
An electrolyte, a secondary battery, and an electric device. The electrolyte comprises a component, a nitrile solvent. The nitrile solvent comprises a compound represented by formula (1): wherein: L is selected from any one of C(R1R2), O, Si(R3R4), B(R5), P(R6R7R8), and N(R9); R1-R9 are each independently selected from at least one of H, halogen, substituted or unsubstituted alkyl having 1-3 carbon atoms, alkoxy having 1-3 carbon atoms, amino, and cyano, and R1 and R2 are not cyanos and H; R11 is an alkane chain containing 1-4 carbon atoms; R12-R14 are each independently selected from at least one of H, halogen, substituted or unsubstituted alkyl having 1-3 carbon atoms, alkoxy having 1-3 carbon atoms, amino, and cyano; and when L is C(R1R2), R12-R14 are not cyanos.
Resumen de: US20260018653A1
The present application belongs to the technical field of batteries, and in particular, relates to a laminated battery cell, a secondary battery, and an electric device. The laminated battery cell provided by the present application includes a positive electrode sheet, a negative electrode sheet, and a separator. The separator includes a separator body. The separator body includes a side surface facing the negative electrode sheet. The side surface has a side edge, and an adhesive film layer is disposed on at least part of the side edge. The adhesive film layer is disposed along a first direction and/or a second direction of a plane where the separator body is located to form an accommodating region. The negative electrode sheet is located in the accommodating region.
Resumen de: US20260018655A1
The present application relates to a lithium secondary battery including a positive electrode, a silicon-based negative electrode, a separator provided between the positive electrode and the negative electrode, and an electrolyte. The lithium secondary battery according to the present application includes a specific additive in the electrolyte which may serve to capture a Lewis acid produced by a solvent included in the electrolyte and to form a negative electrode film when the lithium secondary battery is driven.
Resumen de: US20260018654A1
A ribbon pressing device includes a jig body, multiple first pressing pin groups, and multiple second pressing pin groups, where the multiple first pressing pin groups are arranged at intervals on the jig body along a first direction, each of the multiple first pressing pin groups includes multiple first pressing pin units arranged at intervals along a second direction, and each of the multiple first pressing pin units is movable relative to the jig body; and the multiple second pressing pin groups are arranged at intervals on the jig body along the first direction, each of the multiple second pressing pin groups includes multiple second pressing pin units arranged at intervals along the second direction, and each of the multiple second pressing pin units is movable relative to the jig body.
Resumen de: US20260018666A1
The present technology relates to inorganic compounds having an argyrodite-type structure based on an alkali metal obtained by a preparation process comprising a step of grinding the sulfide of the alkali metal, the sulfate of the alkali metal, phosphorus pentasulfide and a halide of the alkali metal. Also described are electrode materials, electrodes, electrolytes comprising said inorganic compound having an argyrodite-type structure and their uses in electrochemical cells, for example, in electrochemical accumulators, particularly in all-solid-state batteries.
Resumen de: US20260015246A1
Provided is a method for recovering metals, which can produce a lithium hydroxide solution from a metal-containing solution and appropriately process the impurities separated at that time. The method for recovering metals from battery powder of lithium ion battery waste includes: an acid leaching step of leaching the metals in the battery powder into an acidic leaching solution to obtain a metal-containing solution containing lithium ions and other metal ions; a metal separation step of separating the other metal ions from the metal-containing solution; and, after the metal separation step, an electrodialysis step of subjecting the metal-containing solution containing lithium ions and fluoride ions as impurities to electrodialysis using a bipolar membrane to obtain a lithium hydroxide solution and an acidic solution comprising fluoride ions, wherein the acidic solution obtained in the electrodialysis step is mixed with the acidic leaching solution so that the acidic leaching solution contains calcium in the acidic leaching step, and the fluoride ions are precipitated by the calcium.
Resumen de: US20260015245A1
A sodium supplement material, a preparation method thereof, positive electrode plate, and sodium-ion battery. The sodium supplement material includes a sodium supplement agent body and first particles exposed on the surface of the sodium supplement agent body. In any 300 nm×200 nm region on the surface of the sodium supplement material, the number of first particles ranges from 2 to 20. The first particles include one or more conductive agent particles and one or more catalyst particles.
Resumen de: US20260015255A1
The present application provides a positive electrode active material, a preparation method thereof, and a positive electrode plate, a battery cell, a battery, and an electric device containing the same, where the positive electrode active material includes a matrix and a sodium-rich layer formed in situ on the surface of the matrix, the matrix includes a sodium-containing layered transition metal oxide, and the sodium-rich layer includes one or more of sodium salts represented by Formula (I) and Formula (II), where m represents an integer from 1 to 8, and n represents an integer from 2 to 20.
Resumen de: US20260015241A1
A method of preparing graphene from coal can include thermally processing raw coal and, after the coal has been at least partially cooled from thermal processing, forming reduced graphene oxide from the coal.
Resumen de: US20260015238A1
Recovered carbon black from recycled tires may be processed through several stages of: cleaning of the recovered carbon black; activation of the recovered carbon black; hydrothermal impregnation of catalyst in activated carbon of the recovered carbon black; graphitization of activated carbon of the recovered carbon black impregnated with catalyst; and finally, cleaning of graphite and recovery of catalyst.
Resumen de: US20260018725A1
A battery pack includes a battery module, an equipment member disposed on the battery module, and a supporting member disposed between the battery module and the equipment member and formed of insulation resin. A busbar having electrical conductivity is disposed in the supporting member, one end of the busbar that has passed through the inside of the supporting member toward the battery module side is connected to the battery module, a connection terminal is provided on the other end of the busbar that has passed through the inside of the supporting member toward the equipment member side, and the connection terminal of the busbar is connected to a connection terminal of the equipment member.
Resumen de: US20260018757A1
A battery cell, a battery and an electric device, relating to the technical field of batteries. The battery cell comprises: a housing, an electrode column body and an electrode column cover plate, wherein the housing defines an accommodating cavity; the electrode column body is arranged on the housing; a communication channel in communication with the accommodating cavity is formed on the electrode column body; the electrode column cover plate is arranged on the electrode column body; and a liquid injection hole in communication with the communication channel is formed in the electrode column cover plate.
Resumen de: US20260018754A1
A laminated cell, a prismatic lithium battery and a battery pack are provided. The laminated cell includes a plurality of cell units stacked in sequence along a first direction, each of the cell units includes a positive electrode plate, a separator and a negative electrode plate that are stacked in sequence, and a separator is disposed between two adjacent ones of the cell units. A ratio of a length to a thickness of the positive electrode plate and a ratio of a length to a thickness of the negative electrode plate are respectively and independently selected from 6.3×102 to 9.4×102, and a ratio of a width to the thickness of the positive electrode plate and a ratio of a width to the thickness of the negative electrode plate are respectively and independently selected 6.3×102 to 9.4×102.
Resumen de: US20260018755A1
A battery module (50) includes: a plurality of battery cells (100) stacked in a predetermined direction; and a plurality of lead portions (110) each folded back between at least one battery cell (100) and at least another battery cell (100), wherein an average of tilts of end surfaces of the plurality of lead portions (110) relative to a direction perpendicular to the predetermined direction is equal to or greater than 85.0° and equal to or less than 95.0°.
Resumen de: US20260018752A1
An electrode wound body includes positive and negative electrodes, and a separator between the positive and negative electrodes. The positive electrode includes a positive foil extension extending from a positive electrode foil. The negative electrode includes a negative foil extension extending from a negative electrode foil. The positive electrode, the negative electrode, and the separator are wound to define a spiral including a through hole with a central axis extending through the through hole. The positive and negative foil extensions extend from opposite ends of the electrode wound body. Portions of the positive foil extension include bends that bend towards the central axis so that the portions of the positive foil extension overlap to define a first surface. Portions of the negative foil extension include bends that bend towards the central axis so that the portions of the negative foil extension overlap to define a second surface.
Resumen de: US20260018664A1
A production method includes: heating a first stacked body at 1000° C. or more, the first stacked body having: a layer containing an oxide represented by the composition formula: La2Si2O7; a first layer provided on one side of the oxide-containing layer and containing cerium oxide doped with a lanthanum element; and a layer provided on the first layer opposite to the oxide-containing layer and containing nickel oxide, and thereby generating, from the oxide represented by the composition formula, a solid electrolyte that has an apatite structure and is c-axis oriented; placing a second layer containing cerium oxide doped or not doped with an Ln element (a rare earth element other than cerium), on the solid electrolyte-containing layer opposite to the cerium oxide-containing layer, and thereby obtaining a second stacked body; and heating the second stacked body at 1000° C. or more.
Resumen de: US20260018656A1
A lithium secondary battery according to the embodiments of the present disclosure includes a cathode which includes lithium-metal oxide particles having a compressive fracture strength of 1,500 MPa or more and having a single particle form; an anode disposed opposite to the cathode and including a lithium metal layer, and a solid electrolyte layer interposed between the cathode and the anode and including a sulfide-based solid electrolyte.
Resumen de: US20260018614A1
Anode material, and battery. Anode material includes graphite and carbon layer located on at least part of surface of graphite. Particle surface and particle section of anode material are respectively tested by Raman spectroscopy, peak area ratio of D characteristic peak within range of 1300 cm−1 to 1350 cm−1 to G characteristic peak within range of 1500 cm−1 to 1580 cm−1 is ID/IG, ratio of ID/IG measured on the particle surface is A, and ratio of ID/IG measured on particle section is B, and 1.22
Resumen de: US20260018658A1
An electrolyte, a sodium secondary battery and an electric device. The electrolyte comprises a first sodium salt and a first solvent, wherein the first sodium salt comprises sodium trifluoromethanesulfonate, and the first solvent has a structure as shown in formula I, with the mass ratio of the first sodium salt to the first solvent being 0.01-0.4. The electrolyte has a good low-temperature ionic conductivity, which is beneficial for improving the low-temperature cycling performance and low-temperature coulombic efficiency of the battery.
Resumen de: US20260018651A1
A secondary battery includes: an electrode assembly including a through-hole in a thickness direction thereof, a case having an opening and accommodating the electrode assembly, a cap plate coupled to an end of the case having the opening of the case, and an electrode terminal electrically connected to an electrode tab of the electrode assembly and penetrating through the cap plate. The secondary battery further includes a fixing member in the through-hole to secure the electrode assembly in the thickness direction.
Nº publicación: US20260018652A1 15/01/2026
Solicitante:
SK ON CO LTD [KR]
SK On Co., Ltd
Resumen de: US20260018652A1
An electrode assembly according to the present disclosure includes a first electrode and a second electrode, wherein the first electrode and the second electrode are wound into a roll, wherein the first electrode comprises a first coated region in which a first active material is coated on a first current collector, and a first uncoated region adjacent to the first coated region, wherein the second electrode comprises a second coated region in which a second active material is coated on a second current collector, and a second uncoated region adjacent to the second coated region, and wherein a height of at least one of the first current collector.
BOPI
Sede Electrónica
