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1724
resultados
Última actualización
24/03/2026 [07:20:00]
Resultados 900 a 925 de 1724
Resumen de: US20260074267A1
An electrode assembly having a wound stacked structure, a first separator, a second electrode, and a second separator are sequentially stacked is provided. The electrode assembly includes a support portion provided on the inner wall of a central winding hole formed in a core of the electrode assembly by winding the stack so as to provide rigidity to the inner wall.
Resumen de: US20260074265A1
An assembly apparatus and an assembly method. The assembly apparatus is configured to assemble a battery cell. The assembly apparatus includes a first guide rail mechanism, where the first guide rail mechanism is located at a housing entry station, a gap is formed between the first guide rail mechanism and an adjacent second guide rail mechanism; a moving mechanism configured to convey an electrode assembly of the battery cell to the housing entry station; and a pressure measurement mechanism fixedly connected to the first guide rail mechanism, where the pressure measurement mechanism is configured to support weights of the first guide rail mechanism and the moving mechanism located on the first guide rail mechanism, and measure a pressure experienced by the electrode assembly during the process of placing the electrode assembly inside a housing.
Resumen de: US20260074263A1
A secondary battery manufacturing apparatus and method are disclosed. The apparatus including: an air supply duct through which a flow of drying air is guided in a first direction; and a drying trunk connected to the air supply duct to guide the flow of the drying air in a second direction intersecting the first direction, wherein the air supply duct includes a plurality of air supply vanes, the drying trunk includes a plurality of drying vanes, the plurality of air supply vanes distribute the drying air and guide the flow of the drying air in a width direction of the air supply duct, and the plurality of drying vanes distribute the drying air and guide the flow of the drying air in a width direction of the drying trunk.
Resumen de: US20260074231A1
A coated active material of the present disclosure includes: a positive electrode active material; lithium carbonate present on a surface of the positive electrode active material; and a coating layer coating at least a portion of the surface of the positive electrode active material. The coating layer includes a lithium-containing fluoride. When a mass of the lithium carbonate present on the surface of the positive electrode active material is measured by neutralization titration, a proportion R1 of the mass of the lithium carbonate in a mass of the positive electrode active material is 0.43% or more and 1.4% or less.
Resumen de: US20260074237A1
A solid-state battery has a first collector, a first electrode layer, an electrolyte layer, a second electrode layer and a second collector in that order, wherein the first collector includes a resin layer that contacts the first electrode layer, the first electrode layer contains an electrode active material, and the electrode active material has an active material resin.
Resumen de: US20260074365A1
A power storage module includes a module main body having an electrode stack in which a plurality of electrodes are stacked; and a pressure control valve attached to the module main body. The pressure control valve includes a housing having a first wall that has a communication hole, a second wall, and a first protrusion formed in the second wall, and a valve body accommodated in the housing so as to close the communication hole. The second wall has a first hole that is opened at an outer surface of the second wall, and a second hole that is opened at the outer surface, the second hole being positioned vertically above the first hole. The first protrusion protrudes outward from the outer surface along a first direction, and extends so as to partition between the first hole and the second hole, as viewed in the first direction.
Resumen de: US20260074395A1
Disclosed are an assembly method for a secondary battery, a secondary battery, a battery pack and an electronic device, which can improve the stability of a welding structure of a current collector. The assembly method for the secondary battery includes the following steps: an assembly step, assembling a current collector and a terminal, so that a wall portion of the terminal abuts against the current collector; a welding step, irradiating a laser spot on the wall portion, and moving the laser spot along a helical trajectory, welding the wall portion and the current collector to form a weld mark, wherein, on a cross-section passing through a terminal axis, the weld mark extends from a first end to a second end, the first end is located on a surface of the wall portion facing away from the current collector, and the second end is located inside the current collector.
Resumen de: US20260074393A1
The present disclosure provides a pole, a cover plate assembly, and a battery cell. The pole includes a first metal part and a second metal part. The first metal part has a first inward part and a first outward part that is disposed on an inner wall of the first inward part. The second metal part includes a main body and a second outward part. A second inward part is disposed on an outer peripheral surface of the second outward part. The second outward part is embedded into the first inward part, and the first outward part is embedded into the second inward part. A side of the second inward part away from a bottom wall of the first inward part is represented as a first surface. And a gap is only disposed between the first outward part and the first surface.
Resumen de: US20260074364A1
A battery pack case according to an embodiment of the present disclosure includes: a base plate, a side plate disposed along a circumference of the base plate and having a lower side connected to the base plate, a cover plate covering an upper side of the side plate and define an accommodation space above the base plate, a partition plate disposed in the accommodation space to partition the accommodation space into a plurality of spaces, and a top plate forming a flow path together with the cover plate and disposed above the cover plate.
Resumen de: US20260074371A1
The present disclosure relates to a separator for a rechargeable lithium battery, and a rechargeable lithium battery including the separator. The separator for a rechargeable lithium battery includes a porous substrate, and a coating layer located on at least one surface of the porous substrate.
Resumen de: WO2026051345A1
Disclosed are a blade battery and a battery pack having same. The blade battery comprises at least one positive electrode sheet, a plurality of negative electrode sheets, a positive electrode cover plate and a negative electrode cover plate. A first tab and a second tab are respectively provided on two adjacent edges of the positive electrode sheet. The plurality of negative electrode sheets respectively cover two opposite sides of the positive electrode sheet, a third tab and a fourth tab are respectively provided on two adjacent edges of each negative electrode sheet, the positive electrode sheet and the negative electrode sheets are stacked, with the edges thereof flush with each other, the first tab and the third tabs are respectively located on two opposite sides of the blade battery, and the second tab and the fourth tabs are respectively located on two opposite sides of the blade battery. The positive electrode cover plate is located on two adjacent edges of the blade battery, and the positive electrode cover plate is connected to the first tab and the second tab to form a positive electrode. The negative electrode cover plate is located on two adjacent edges of the blade battery, and the negative electrode cover plate is connected to the third tabs and the fourth tabs to form a negative electrode.
Resumen de: WO2026051379A1
A circuit board assembly, a battery pack, and an energy storage system, relating to the technical field of energy storage. The circuit board assembly is disposed in the battery pack. The circuit board assembly comprises a mounting box, a circuit board body, a wiring harness, and a wiring harness sealing cover. The mounting box is provided with an accommodating cavity and a wire arrangement hole in communication with the accommodating cavity; the circuit board body is disposed in the accommodating cavity; the wiring harness is connected to the circuit board body, and passes through the wire arrangement hole; the wiring harness sealing cover comprises a first body and a sealing portion, the first body being hermetically connected to the mounting box and covering the wiring arrangement hole, the first body being provided with a first sealing recess, and the first sealing recess being in communication with the wire arrangement hole; the first body is further provided with a wiring harness hole that connects the first sealing recess with the wire arrangement hole, the wiring harness passes through the wire arrangement hole, the wiring harness hole and the first sealing recess, and the sealing portion is provided in the first sealing recess and covers the wiring harness hole. The present application, by means of the wiring harness sealing cover sealing the wiring harness hole, and the sealing portion sealing the wiring harness hole, ensures the airtightness of the operating environ
Resumen de: WO2026051336A1
Provided are an electrolyte, a battery and an electric device. The electrolyte comprises an organic solvent and a lithium salt. The organic solvent comprises an ionic liquid, a co-solvent and a diluent. The co-solvent comprises an ether solvent. The diluent comprises one or more of the following structural formulas: wherein in structural formula I to structural formula III, R1-R18 are each independently selected from H, F, a C6-C26 fluorine-substituted phenoxy and a C1-C20 fluorine-substituted alkyl; and R1-R8 are not H at the same time, R9-R14 are not H at the same time, and R15-R18 are not H at the same time. A stable negative electrode SEI is generated by using a cyclic fluoroether with a weak coordination capability. The use of the ionic liquid in cooperation with the other components drives a large number of anions to enter an Li+ solvation sheath layer, and the ionic liquid can also participate in the adjustment and control of a solvation structure by means of a series of weak interactions. In the case of the solvation structure being controlled by the ionic liquid, multiple instances of adjustment and control of the interface are completed. The operating temperature of a battery is widened, the cycling life thereof is long, the energy is high and the power density is high, and the high-voltage cycling stability and safety of the battery is also improved.
Resumen de: US20260071020A1
The present invention relates to a copolymer, and a slurry composition, a separator, and a secondary battery that comprise same, wherein the copolymer comprises, based on 100 wt % of the total weight of the copolymer, 15 wt % or less of a vinylacetate monomer unit, 10-55 wt % of an acrylate-based monomer unit, and 1-10 wt % of an acrylic acid-based monomer unit bound with at least one selected from the group consisting of an alkali metal and an acetate salt compound comprising an alkali metal.
Resumen de: US20260071048A1
A lithium-ion battery component with an electrode includes a current collector and a silicon-based active layer. The active layer includes a polyacrylonitrile lattice structure with continuous carbon domains. Silicon particles are distributed within the vacancies of the polyacrylonitrile lattice, which is configured to confine the silicon particles during the volume expansion and contraction that occurs during charge cycling.
Resumen de: US20260070794A1
An electrode material and a preparation method thereof, an electrode plate and a preparation method thereof, a battery, and an electric apparatus. The electrode material includes a substrate and a first inorganic lithium compound layer coated on at least a portion of the surface of the substrate, where the substrate includes a pre-lithiated electrode active material; and the first inorganic lithium compound layer includes at least one of lithium oxide, lithium nitride, lithium carbonate, lithium fluoride, lithium sulfide, or lithium phosphide.
Resumen de: US20260070791A1
According to various embodiments of the present invention, a silicon composite may include: pure silicon grains; and a buffer layer coated on the surface of the pure silicon grains. A method for manufacturing the silicon composite according to various embodiments of the present invention may include: a step of pulverizing metallurgical-grade silicon particles; and a step of forming a buffer layer layer on the surface of the pulverized metallurgical-grade silicon grains. An anode for a secondary battery according to various embodiments of the present invention may include the silicon composite. A secondary battery according to various embodiments of the present invention may include the anode.
Resumen de: US20260070790A1
Provided are a negative electrode material and a preparation method therefor, a negative electrode plate and a preparation method therefor, an energy storage device, and an electricity-consumption device. The negative electrode material includes hard carbon. The hard carbon has a porous structure and satisfies: 0.32≤Dv50/1000V≤2.40. Dv50 of the hard carbon is in unit of μm; and V represents a total volume of pores in the hard carbon, in unit of cm3/g.
Resumen de: US20260074205A1
A negative electrode structure for a secondary battery (10) includes: a body (12) that is in a form of a foil or a thin plate and contains zinc as a base material; and a non-electron conductive film (11) provided on at least a first surface of the body (12). The film (11) is stretchable. The film (11) includes: an opening portion (13) formed to expose a portion of a first surface of the body (12); and an electrode reaction inhibiting portion (14) that surrounds the opening portion (13) and inhibits an electrode reaction in the body (12). The film (11) is attached to the body (12) in a liquid-tight manner.
Resumen de: US20260074234A1
Examples of the disclosure include a composite substrate for a rechargeable lithium battery that includes a support layer including a polymer film, and a metal layer disposed on the support layer and including at least one of copper and copper oxide. The metal layer includes a first metal layer on a surface of the support layer and including an adhesion enhancer and a first copper, and a second metal layer on the first metal layer and including a second copper. The adhesion enhancer includes a first moiety chemically bonded to the surface of the support layer and including a hydroxyalkylene group, and a second moiety including an amine group configured to adsorb the first copper.
Resumen de: US20260074209A1
A vanadium oxide composite of the present disclosure includes: a particle including a vanadium oxide; and an electrically conductive material at least partially coating a surface of the particle. A surface coverage of the particle by the electrically conductive material is 30% or more. The vanadium oxide composite has an average particle size of 0.5 μm or more and 5.0 μm or less.
Resumen de: US20260074203A1
A lithium-metal secondary battery, which includes a highly reduction-resistant electrolytic solution, including 2 to 6 mol of electrolyte per L of solvent and also having a lithium deposition dissolution efficiency of 98.5% or more, which lithium deposition dissolution efficiency is the proportion of the amount of redissolution of lithium to the amount thereof deposited on the copper surface, wherein the relative density of a lithium metal layer in a negative electrode is 40 to 85%. In addition, a lithium-metal secondary battery, which includes a highly oxidation-resistant electrolytic solution, including 2 to 6 mol of electrolyte per L of solvent and also having a voltage of 5.5 V or more when the current density is 0.4 mA/cm2 using lithium as a counter electrode and platinum as a working electrode, wherein the relative density of a lithium metal layer in a negative electrode is 70 to 95%.
Resumen de: US20260074214A1
A secondary battery with high capacity and a high level of safety is provided. The battery includes a positive electrode including a positive electrode active material and a conductive material. The positive electrode active material contains cobalt, oxygen, magnesium, and nickel. A median diameter of the positive electrode active material is greater than or equal to 1 μm and less than or equal to 12 μm. In EDX line analysis in a depth direction on a region of the positive electrode active material having a plane other than a (001) plane, a distribution of the magnesium partly overlaps with a distribution of the nickel. The conductive material adheres to part of the plane other than the (001) plane of the positive electrode active material.
Resumen de: US20260074355A1
A battery pack according to the present disclosure includes: a battery assembly including a plurality of battery cells; a pack case in which an accommodation space is defined to accommodate the battery assembly; at least one first vent hole provided on a first side of the battery assembly; a vent space provided on the first side of the first vent hole and formed in the pack case; and a backflow preventing member having at least one opening/closing portion disposed to correspond to the first vent hole. The opening/closing portion is opened to allow communication between the first vent hole and the vent space when an internal pressure of the battery assembly reaches or exceeds a predetermined reference value.
Nº publicación: US20260074351A1 12/03/2026
Solicitante:
SOTERIA BATTERY INNOVATION GROUP INC [US]
Soteria Battery Innovation Group, Inc
Resumen de: US20260074351A1
A battery array insulating and separating structure for implementation with multiple lithium-ion cells is disclosed. Such an article is configured in a manner to permit the disposition of individual batteries in close proximity to one another while simultaneously being separated from any contact with an insulating material therebetween. The configuration is a honeycomb-like structure preventing any contact between batteries placed therein as well as protection from heat transfer from one battery to another therein. Such a separating/insulating article thus allows for safer utilization of multiple battery cells within a close-quarter array thereof, ostensibly preventing or at least significantly reducing the propensity of a single (or multiple) battery subject to a short or other damaging phenomenon from deleteriously affecting any other batteries within the array through such heat transfer possibilities. A method of utilizing such a unique honeycomb-like array with multiple separate battery cells simultaneously is also encompassed within this disclosure.
BOPI
Sede Electrónica
