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677
resultados
Última actualización
13/09/2026 [07:11:00]
Resultados 375 a 400 de 677
Resumen de: US20260260956A1
The present disclosure relates to a method of recycling a positive electrode active material, a recycled positive electrode active material prepared using the method, and a secondary battery including the recycled positive electrode active material. More specifically, the method of the present disclosure includes a step of recovering a positive electrode active material in a positive electrode active material layer by thermally decomposing a binder and conductive material in the positive electrode active material layer by heat-treating a waste positive electrode having the positive electrode active material layer formed on a current collector; a step of performing first milling on the recovered positive electrode active material; a step of adding a lithium precursor to the first milled positive electrode active material and performing annealing at 400 to 1000° C.; and a step of performing second milling on the annealed positive electrode active material.According to the present disclosure, by performing first milling on a positive electrode active material recovered without a washing process after heat treatment of a waste positive electrode, adding a lithium precursor to the positive electrode active material subjected to the first milling, performing annealing, and then performing second milling, damage to the surface of the positive electrode active material may be prevented, the particle size of the recycled positive electrode active material may be uniform, and the incr
Resumen de: US20260260898A1
A negative electrode active material, a negative electrode comprising the same, and a lithium secondary battery including the same are provided. The negative electrode active material comprises a core including a silicon carbon composite; an oxide layer which is provided on at least a portion of the core and includes silicon oxide, and of which at least 50% has a thickness of greater than 5 nm; and a carbon layer provided on at least a portion of the oxide layer.
Resumen de: US20260259271A1
A battery state prediction apparatus according to an embodiment disclosed herein includes a communication interface configured to receive battery data from a battery and at least one process configured to generate a battery state prediction model comprising a first prediction model configured to predict a loss of lithium, a second prediction model configured to predict a loss of a first active material in a cathode, and a third prediction model configured to predict a loss of a second active material in an anode and input the battery data to the battery state prediction model to obtain battery state data.
Resumen de: US20260258251A1
The invention relates to a method for producing a dry mixture consisting of conductive carbon black (16) and an active material for the production of anode material for an electrochemical cell, in particular a battery cell, in which in a first step only the conductive carbon black (16) is adjusted by shearing to a bulk density of <0.05 g/cm3, preferably <0.03 g/cm3, and in a second, subsequent step, is mixed with the active material.
Resumen de: US20260261019A1
0000 A battery cell, a battery, and an electric apparatus. The battery cell includes a housing, an electrode assembly, an electrode terminal, and a sealing member. The housing includes a first wall, where the first wall is provided with a through hole. The electrode assembly is disposed in the housing. The first wall is configured to support the electrode assembly. The electrode terminal is disposed in the through hole. The electrode terminal includes a first conductive portion, where the first conductive portion is disposed on a side of the first wall facing an accommodating space. The sealing member is disposed between the electrode terminal and the first wall.
Resumen de: US20260260953A1
0000 A battery management system structure has a housing having a housing interior and a housing exterior, a connector shell forming an interior and at least one electrically conductive signal pin. The connector shell is integrally formed with the housing and is positioned on the housing exterior. Each of the at least one electrically conductive signal pins has a first elongated portion positioned partially within the connector shell interior and extending into the housing interior, a second elongated portion positioned within the housing interior and a shoulder portion coupling the first elongated portion to the second elongated portion. The shoulder portion is arranged with a bend so that the first elongated portion is substantially orthogonal to the second elongated portion. A battery including the battery management system structure is also provided.
Resumen de: US20260261003A1
0000 A ventilation device for a secondary battery includes a frame including a first frame and a second frame, and a connector connecting the first frame and the second frame to each other and including a slit portion. Each of the first frame and the second frame includes a facing surface that faces each other, and at least one of the first frame and the second frame includes a ventilation guiding portion recessed from the facing surface. The frame includes a terrace expansion restraining portion including an inclined surface structured to support a pouch terrace portion of the secondary battery and formed at a surface of the frame adjacent to a surface including the ventilation guiding portion. A ventilation control portion is formed to provide a space between the first frame and the second frame to be connected to the ventilation guiding portion.
Resumen de: US20260260960A1
0000 Battery cell, with rolled electrodes, with at least one border of bent poles to form a base at at least one end, wherein it is continued with a wool cushion bridge, electrothermal conductor collector at the battery cell terminal, encapsulated assembly, sealed in a composite box with a flexible, elastic, electrically insulating body, which is also an expansion vessel in the event of the formation of an internal gas due to the electrochemical reaction between the anode and the cathode, housing and storing the flammable gas inside, sealed with the outside, and the pressure is measured in real time by an internal pressure sensor that transmits the data in real time to the BMS and/or to the battery cell controller. The battery cells are provided with heat exchanger device and are assembled into modules and racks, with air or air-liquid hybrid passive or forced cooling system.
Resumen de: US20260260936A1
0000 A lithium-ion battery, including a positive electrode, a negative electrode and a non-aqueous electrolyte. The positive electrode includes a positive electrode current collector and a positive electrode material layer arranged on the positive electrode current collector, and the positive electrode material layer includes a positive electrode active material containing a lithium cobalt oxide, and the positive electrode has a resistivity less than or equal to 1000 Ω·cm; the non-aqueous electrolyte includes a non-aqueous organic solvent, a lithium salt and an additive, the additive includes a compound represented by structural formula 1:
0000
0000 the lithium-ion battery meets the following requirements: 0.05≤m*d/f≤5, and 10≤d≤40, 3≤f≤30, 0.01≤m≤3. The lithium-ion battery provided by the present application effectively ensures the ionic conductivity and electronic conductivity of the positive electrode, as well as good dynamic and cycle performances without compromising energy density.
Resumen de: US20260257455A1
The teachings herein relate to thermal shielding devices for reducing and/or delaying heating of a region near a heat source. The thermal shielding device includes a polymeric core layer interposed between metal layers and a barrier layer. Preferably, the barrier layer provides a thermal barrier, an electrical barrier or both.
Resumen de: US20260261138A1
0000 Provided is a charging system that easily secures a discharge amount of a battery necessary for measurement of an open circuit voltage of the battery. 0000 The charging system that charges a battery 11 mounted on a vehicle 1 with power supplied from an external power supply includes: a charging/discharging control unit 32 that controls execution of charging and discharging of the battery 11; a voltage acquisition unit 33 that acquires a result of measuring a voltage of the battery 11 at a predetermined timing from a voltage measurement unit 14 that measures the voltage of the battery 11; a charge/discharge amount determination unit 29 that determines a charge/discharge amount of the battery 11 necessary for measurement of an open circuit voltage OCV of the battery 11; and a discharge allocation determination unit 31 that determines a discharge allocation which is an allocation of an internal discharge amount consumed by internal equipment 18 of the vehicle 1 and an external discharge amount consumed by external equipment 111 of the vehicle 1, the internal discharge amount and the external discharge amount being necessary for discharging of the charge/discharge amount in the battery 11, in which the discharge allocation determination unit 31 allows an allocation in which the internal discharge amount and the external discharge amount are simultaneously larger than 0.
Resumen de: US20260260997A1
A box body, a battery, and an electrical device, and relates to the technical field of batteries. The box body comprises a box wall, a supporting member, and a connecting element. The box wall encloses to form an accommodating cavity and provided with a first connecting hole, the first connecting hole runs through the box wall in a thickness direction of the box ball; the supporting member is arranged within the accommodating cavity; the connecting element extends into the accommodating cavity through the first connecting hole for detachable connection to the supporting member and fixing the box wall with the supporting member; and a connecting structure is provided on one side of the connecting element facing the outside of the accommodating cavity for connection to a target device.
Resumen de: US20260261004A1
A secondary battery according to the present disclosure includes: an electrode assembly; and a battery case in which the electrode assembly is accommodated and of which an edge is sealed, wherein the battery case may include: at least one folding part folded so that a distal end of a portion of the edge of the battery case is hidden inward; and at least one exposing part through which a distal end of the other portion of the edge of the battery case is exposed to the outside
Resumen de: US20260260981A1
The present disclosure relates to the technical field of lead-acid batteries, and in particular, to a terminal side-mounted starting lead-acid battery, including a body and two sets of wiring terminals. The two sets of wiring terminals are symmetrically arranged on any two opposite end faces of the body. An extension sleeve and a sealing cover are sequentially connected along an extension direction of each of the wiring terminals. The extension sleeve is arranged concentrically with a mounting hole of the wiring terminal, a cavity is provided in the extension sleeve, a rotating shaft is rotatably connected in the cavity, a torsion spring is connected to the rotating shaft, and the other end of the torsion spring is connected to an inner wall of the cavity. The sealing cover covers an end face of the extension sleeve to close the extension sleeve.
Resumen de: US20260260933A1
A polymer composition having improved ionic conduction properties, the use of such a polymer composition for the preparation of a polymer electrolyte and/or a positive electrode of a rechargeable battery, a polymer electrolyte for a rechargeable battery including such a polymer composition, a positive electrode for a rechargeable battery including such a polymer composition, and a lithium or sodium rechargeable battery including such a polymer electrolyte and/or such a positive electrode.
Resumen de: US20260260938A1
The present application concerns a lithium-ion cell comprising: a silicon anode, the silicon anode comprising: a current collector layer; and a silicon layer, wherein the silicon layer comprising a plurality of columnar structures on a current collector; a cathode; a separator; and an electrolyte, the electrolyte comprising: 9 to 29 wt. %, with respect to the electrolyte, of a lithium salt; a non-aqueous solvent; and a diluent, wherein the electrolyte having a lithium salt-solvent-diluent molar ratio of 1:x:y, where 1.0≤x≤3 and 2.0≤y≤4.0.
Resumen de: US20260261013A1
An ultrahigh strength separator and the preparation method thereof. The method comprises: (1) mixing and heating a composition comprising a polyolefin resin, an antioxidant, and a pore-forming agent to form a molten state mixture, extruding the mixture through a die, and cooling it to form casting piece; (2) performing a first machine direction stretching and a first transverse direction stretching on the casting piece sequentially to obtain a stretched film; (3) performing a second machine direction stretching on the stretched film; (4) performing a second transverse direction stretching; (5) performing extraction, a third transverse stretching, and heat setting sequentially to obtain the ultrahigh strength separator. The separator prepared by the process of the present disclosure is greatly improved in tensile strength in the machine and transverse stretching directions, and its puncture strength can also be much higher than that of other separators of the same thickness. When the separator disclosed herein is used in a lithium-ion battery, it can provide better isolation and protection for the positive and negative electrodes of the battery when the battery is subjected to external shocks, so as to avoid the risk of short circuit caused by separator rupture, and can improve the safety performance of lithium-ion batteries.
Resumen de: US20260261133A1
A method controls electrical connection of a plurality of battery packs of an electric energy storage system of a vehicle to a load during operation of the vehicle. The plurality of battery packs are configured to be selectively connected in parallel to the load. Based on at least an operational mode of the electric energy storage system and on the voltage of each one of the battery packs, and by allowing simultaneous connection of at least two battery packs to the load, proposing a connection sequence for electrically connecting at least a subset of the plurality of battery packs to the load. Prior to connecting at least the subset of battery packs to the load, and based on at least an internal resistance of each one of the battery packs within at least the subset of battery packs, determining whether the proposed connection sequence fulfils a predetermined connection condition.
Resumen de: US20260261124A1
0000 An operation control device according to an embodiment of the present invention is an operation control device of an energy storage system including a battery and linked to a power grid, and comprises: at least one processor; and a memory for storing at least one command executed through the at least one processor, wherein the at least one command may include commands for: in a state where power supply from the power grid is possible, configuring a power price linkage mode according to selection of an operator or a user; setting reference power for an inverter of the energy storage system according to the power price linkage mode; and transmitting the set reference power for the inverter to the inverter, and in the power price linkage mode, the charging and discharging of the energy storage system may be controlled according to the power price provided by the power grid.
Resumen de: US20260257921A1
0000 A porous carbon material includes a calcined body, wherein the calcined body has a specific surface area of 500 to 3000 m<2>/g, and the calcined body includes pores having a pore diameter of 100 nm or less, and the calcined body has a nitrogen content rate of 1 to 15 atomic %, with a remainder of the calcined body being carbon, and the calcined body has a biomass degree in a range of 5 to 100 pMC, the biomass degree being expressed as a ratio of a <14>C concentration (<14>C/<12>C) of the calcined body when measured using accelerator mass spectrometry (AMS) method to the <14>C concentration (<14>C/<12>C) of a standard sample not derived from fossil fuels.
Resumen de: US20260260940A1
A battery includes a positive electrode plate, a negative electrode plate, and an electrolyte solution. The negative electrode plate includes a negative electrode current collector and a negative electrode active material layer on a surface of the negative electrode current collector, the negative electrode current collector includes a copper foil, a grain size of the copper foil A is less than or equal to 0.75 μm; and the electrolyte solution includes a nitrile compound.
Resumen de: US20260260890A1
The present invention relates to an electrode composition comprising PTFE and at least one copolymer of maleic anhydride and di-isobutylene, to a method for its preparation and to its use for the manufacture of electrochemical cell components.
Resumen de: US20260260937A1
0000 A nonaqueous electrolyte energy storage device according to one aspect of the present invention, in which a positive electrode potential at an end-of-discharge voltage in normal use is 3.5 V (vs. Li/Li<+>) or less, includes: a positive electrode containing a positive active material having a ratio of an average particle size to an average primary particle size of 5 or less; and a nonaqueous electrolyte containing a compound containing a sulfur element.
Resumen de: US20260257547A1
0000 A construction machine includes: a battery; at least one electric drive which is supplied by the battery; a hydraulic circuit in which hydraulic oil circulates; at least one hydraulic drive which is supplied by the hydraulic circuit, and a first coolant circuit for cooling the battery and the hydraulic oil, wherein a portion of the hydraulic oil circulates in the first coolant circuit as coolant.
Nº publicación: US20260260873A1 03/09/2026
Solicitante:
JFE CHEMICAL CORP [JP]
JFE STEEL CORP [JP]
JFE CHEMICAL CORPORATION
JFE STEEL CORPORATION
Resumen de: US20260260873A1
Non-graphitizable carbon, a negative electrode for a lithium-ion secondary battery, and a lithium-ion secondary battery having high discharge capacity are disclosed, wherein a Guinier radius Rg1 in a range of a scattering vector q of 0.30 nm−1 or more and 0.40 nm−1 or less as measured by small-angle X-ray scattering and determined by Guinier analysis is 3.00 nm or more and 5.80 nm or less, a Guinier radius Rg2 in a range of the scattering vector q of 2.05 nm−1 or more and 2.85 nm−1 or less is 0.35 nm or more and 0.57 nm or less, and an average lattice plane distance d002 of a (002) plane determined by X-ray diffraction is 0.365 nm or more and 0.375 nm or less.
BOPI
Sede Electrónica
