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1111
resultados
Última actualización
25/01/2026 [07:40:00]
Resultados 325 a 350 de 1111
Resumen de: US20260024803A1
Disclosed are electrolytes and rechargeable lithium batteries. The electrolyte includes a non-aqueous organic solvent, a phosphorus-based lithium salt, an imide-based lithium salt, and an additive. The additive includes an aliphatic disocyanate compound.
Resumen de: US20260024799A1
A device and a method for bending an electrode tab. The device includes a support configured to support an electrode assembly including at least one electrode tab, a guide above the electrode tab and configured to move in a reciprocating manner toward and away from the electrode tab, and a jig below the electrode tab and configured to move in a reciprocating manner toward and away from the electrode tab. Further, the jig is positioned at a distance from the guide in a direction in which the electrode tab protrudes, and the jig is configured to move toward the electrode tab to press and bend the electrode tab.
Resumen de: US20260024778A1
A sodium metal battery and an electrochemical apparatus, the battery has a positive electrode sheet and a negative electrode sheet, the negative electrode sheet being a negative electrode current collector, and a sodium layer deposited in situ on the negative electrode current collector having a thickness of ≥30 nm after the battery is charged and discharged for the first time. After the battery cell is charged and discharged for the first time, the amount of residual sodium metal is sufficient to uniformly form a sodium deposition layer with a certain thickness on the surface of the negative electrode current collector. The higher nucleation energy required for the deposition of sodium onto the surface of the current collector during subsequent charge-discharge cycles is avoided, the overall deposition overpotential is reduced, and the deposition uniformity of sodium metal and the reversibility of the charge-discharge process are ensured.
Resumen de: US20260024755A1
A solid-state battery includes a positive electrode current collector layer, a positive electrode active material layer, a solid electrolyte layer, a negative electrode active material layer, and a negative electrode current collector layer. Each of the positive electrode active material layer and the solid electrolyte layer contains a sulfide solid electrolyte particle. M expressed by Expression 1 is 1.15 to 3.00,M=M1/M2Expression1M1: the ratio of the number of oxygen atoms to the number of atoms of a first specific element composing the sulfide solid electrolyte particle at the vicinity of the positive electrode current collector layer in the positive electrode active material layer,M2: the ratio of the number of oxygen atoms to the number of atoms of a second specific element composing the sulfide solid electrolyte particle at a central portion in the solid electrolyte layer.
Resumen de: US20260024899A1
A power storage device includes a power storage unit and an accommodation case that accommodates the power storage unit. The accommodation case includes an upper case and a lower case disposed below the upper case. The lower case includes a bottom wall and a peripheral wall standing elect from a peripheral portion of the bottom wall. The bottom wall has a recess recessed downward. The power storage unit includes at least one terminal unit disposed below a center of the power storage unit in an upward/downward direction. The recess is located below the at least one terminal unit.
Resumen de: US20260024885A1
The present disclosure relates to a secondary battery and a battery pack to prevent a local degradation phenomenon. To this end, a secondary battery may include a case, an electrode assembly disposed inside the case and having a first electrode and a second electrode, a first tab member connected to the first electrode and extending from the electrode assembly in a first direction, a cap assembly disposed to face the electrode assembly and having a first terminal and a second terminal, and a first connection member disposed between the electrode assembly and the cap assembly and connected to the first terminal and the first tab member, wherein the first connection member is formed asymmetrically with a first terminal axis passing through the first terminal in the first direction.
Resumen de: US20260024760A1
The present application discloses a positive electrode active material and a preparation method thereof, a positive electrode plate, a battery, and an electric device. The positive electrode active material includes:where M1 includes a rare earth element; M2 includes at least one of a group IA element, a group IIA element, a group IIIA element, a group IVA element, a group VA element, a group VIA element, and a transition element; and 0.6≤x≤1.2, 0
Resumen de: WO2026019164A1
The present invention relates to a solid polymer electrolyte composite composition that, by utilizing an oxide, exhibits improved ionic conductivity and mechanical strength compared to conventional solid polymer electrolytes, thereby enhancing electrochemical properties and stability. The present invention includes a compound having a structure represented by chemical formula 1. Chemical formula 1
Resumen de: WO2026019077A1
A data analysis device according to one embodiment of the present invention is linked to: a battery inspection device for determining whether batteries to be inspected are defective; and an identifier collection device for collecting the identifiers of batteries to be packaged, and may comprise: at least one processor; and a memory for storing at least one instruction executed through the at least one processor. The at least one instruction can include the instructions of: collecting, from the battery inspection device, inspection information about the batteries to be inspected; collecting, from the identifier collection device, packaging information including the identifiers of the batteries to be packaged; and generating performance information about the battery inspection device by using the inspection information and the packaging information.
Resumen de: WO2026019174A1
A positive electrode according to the present invention includes: a current collector; a positive electrode mixture layer provided on a part of the current collector and including a positive electrode active material; and an insulating layer adjacent to the positive electrode mixture layer and disposed on the current collector without the positive electrode mixture layer, wherein the insulating layer includes a non-aqueous binder including a solution-polymerized conjugated diene-based copolymer and inorganic particles, and thus cracks can be prevented from occurring in an overlapping region between the insulating layer and the positive electrode mixture layer, and the problem of electrode detachment and the phenomenon of the insulating layer being recessed can be solved.
Resumen de: WO2026019104A1
A busbar assembly according to one embodiment of the present invention comprises: a busbar connected to a terminal busbar of a plurality of battery modules so as to guide an electrical connection between two battery modules from among the plurality of battery modules; and expandable members, each arranged at both ends of the busbar, wherein, when the predetermined temperature is reached, the expandable members can increase in volume toward the terminal busbar so as to shield an open area formed by the terminal busbar on the battery module connected to the busbar.
Resumen de: WO2026019140A1
According to exemplary embodiments of the present invention, a vehicle is provided. The vehicle comprises: a battery pack including a plurality of battery cell assemblies; a temperature controller disposed on the outside of the battery pack; and a chassis accommodating the battery pack and the temperature controller, wherein the temperature controller may include a phase change material.
Resumen de: WO2026016401A1
The present invention relates to the technical field of state estimation of lithium batteries, and in particular to a state estimation and self-correction method and device for a lithium iron phosphate battery pack. The method comprises: performing real-time SOC estimation on a lithium iron phosphate battery pack; determining whether the average temperature T of the battery pack is abnormal; during charging, measuring in real time dU/dt of a battery cell having the highest cell voltage, if dU/dt is greater than or equal to i/10, correcting an SOCR to 98%, and calculating a correction value e; during discharging, measuring in real time dU/dt of a battery cell having the lowest cell voltage; if dU/dt is less than or equal to i/10, correcting an SOCR to 5%, and calculating the correction value e; correcting an SOH on the basis of the correction value e; and calculating an SOE of the battery pack on the basis of the SOCR. In the method, a correction point is added on the basis of the characteristic that a voltage suddenly changes in the first and final stages of charging and discharging, the cumulative error in an ampere-hour integral method is reduced, and an SOC, an SOH, and an SOE are corrected.
Resumen de: WO2026016391A1
Provided in the present application are a phosphorus adsorption material, and a preparation method therefor and the use thereof. The phosphorus adsorption material comprises a porous composite material, wherein the porous composite material comprises porous biomass carbon and polymer fibers at least partially wound around the porous biomass carbon; and the porous composite material contains several amino groups, at least some of which bind to iron ions. Moreover, the phosphorus adsorption material satisfies the following conditions: 0.36 nm≤d002≤0.43 nm, 0.85≤ID/IG≤1.38, B≥240 m2/g, and 0.20 cm3/g≤V≤0.56 cm3/g, wherein d002 represents the interlayer spacing of graphite-like microcrystallites in the phosphorus adsorption material; B represents the specific surface area of the phosphorus adsorption material; and V represents the total pore volume of the phosphorus adsorption material. The phosphorus adsorption material provided in the present application has a high theoretical adsorption capacity for a phosphorus-containing water body having a high or low phosphorus concentration, and can be regenerated and reused.
Resumen de: WO2026016620A1
The present invention belongs to the technical field of new energy power battery packs and energy storage. Disclosed are a battery module acquisition and integration assembly having flame-retardant characteristics, and a preparation method therefor. The acquisition and integration assembly comprises a PET base film coated with a flame-retardant adhesive layer, and an acquisition circuit component hot-press encapsulated on a side of the PET base film flame-retardant adhesive layer. The flame-retardant adhesive layer is composed of the following constituents in parts by weight: 20-80 parts of a thermosetting resin, 5-20 parts of a curing agent, and 20-80 parts of a flame retardant. The acquisition circuit component is connected to each conductive busbar by means of a FPC, FFC, FDC or FCC, and can be affixed to the PET base film coated with a flame-retardant adhesive layer, and then integrally cured and formed by means of hot-press encapsulation. In the present invention, the addition of a high-grade temperature resistance flame-retardant layer to the acquisition and integration assembly avoids the risk of spontaneous combustion of a battery cell caused by overlapping and sparking of a circuit after a protective adhesive film on the surface of a circuit board is melted through due to the ejection of high-temperature gas during thermal runaway of the battery cell.
Resumen de: US20260021740A1
A golf cart includes a chassis, a seating area supported by the chassis, a plurality of electric components including an electric motor, an occupancy sensor configured to facilitate detecting when an occupant enters the seating area, a battery configured to provide electrical power to the electric motor and the occupancy sensor, and a control system. The control system is configured to operate the golf cart in a low power state where the occupancy sensor is powered by the battery but the plurality of electric components are not powered by the battery, receive a signal from the occupancy sensor indicating that an operator has entered the seating area, and responsive to receiving the signal, initiate a wakeup procedure to power up the plurality of electric components with the battery without requiring the operator to provide an input to start the wakeup procedure.
Resumen de: US20260021741A1
A battery system includes a battery subpack having first and second battery cells, a cell monitoring circuit, a RF transmitter, an RF receiver, a subpack microprocessor, and a first transceiver. The circuit measures a voltage of a first battery cell. The system includes a master controller having a second transceiver. The RF transmitter sends a voltage value corresponding to the voltage of the first battery cell to the RF receiver. The subpack microprocessor determines the first battery cell has an overvoltage condition based on the voltage value and sends an overvoltage message to the master controller via the first and second transceivers. The subpack microprocessor induces first and second subpack contactors to each have an open operational state when the master controller sends an open command to the subpack microprocessor.
Resumen de: US20260021723A1
A battery pack includes a battery housing defining an internal cavity, a first positive terminal extending through the housing, a first negative terminal extending through the housing, a plurality of battery cells within the internal cavity, and a battery charger within the internal cavity. The plurality of battery cells are electrically coupled to the first positive terminal and the first negative terminal. The battery charger is configured to charge the plurality of battery cells and includes a second positive terminal electrically coupled to the first positive terminal within the housing, and a second negative terminal electrically coupled to the first negative terminal within the housing.
Resumen de: US20260021427A1
The present disclosure relates to an apparatus for preventing the inflow of foreign substances such as air bubbles, fine particles, and air pockets, of various sizes, when coating a secondary battery coating slurry, and more particularly, to an apparatus for removing foreign substances, such as air bubbles in a supplied slurry, by discharging the foreign substances including progressive air bubbles in various forms and with various apparatuses from a location where the air bubbles are collected when supplying a secondary battery coating slurry.
Resumen de: EP4682109A1
A lithium-metal composite oxide contains at least Ni, in which the lithium-metal composite oxide contains a plurality of particles, in a powder X-ray diffraction measurement of the lithium-metal composite oxide using a CuKα ray, in a case where a diffraction peak on a low-angle side in a range of 2θ = 38.0 ± 0.5° is defined as a peak A and a diffraction peak on a high-angle side is defined as a peak B, a ratio A/B of a half-width of the peak A to a half-width of the peak B is 1.35 or more and 2.25 or less, and an average convexity of the lithium-metal composite oxide is 0.971 or more and 1.000 or less.
Resumen de: EP4683029A1
A battery according to the present disclosure includes: a first electrode; a second electrode; and an electrolyte layer disposed between the first electrode and the second electrode so as to be in contact with the first electrode and the second electrode, wherein the first electrode is a sintered body including a first active material and a first oxide solid electrolyte, the electrolyte layer is a sintered body including a second oxide solid electrolyte, and includes: a first region including an interface between the first electrode and the electrolyte layer; and a central region including a center position in a thickness direction, the electrolyte layer having an insulating property in the first region, and a mass ratio of a carbide derived from a binder in the first electrode is lower than a mass ratio of a carbide derived from a binder in the central region of the electrolyte layer.
Resumen de: EP4683000A1
Disclosed in the present application are an anode current collector and a preparation method therefor, a battery cell, a battery, and an electric device. The anode current collector includes a metal substrate and metal nanoparticles located on at least part of a surface of the metal substrate; and the metal substrate includes a first metal element, and the first metal element is made of a material the same as the metal nanoparticles. The anode current collector provided in the present application enables the battery to have good cycle performance and further enables the battery to have high reliability.
Resumen de: EP4682216A1
A modified polyacrylic acid adhesive, a carbon-coated aluminum foil and a battery are provided in the application. The modified polyacrylic acid adhesive is polymerized from polymerizable monomers. The polymerizable monomers includes an acrylic monomer and a first modified monomer. The acrylic monomer includes at least one of acrylic acid, sodium acrylate, and lithium acrylate. The first modified monomer comprises at least one of p-phenylenediamine, aminoalkanoic acid, styrene, vinyl alcohol, and acrylonitrile.
Resumen de: EP4683024A2
Disclosed is a secondary battery (100), a battery assembly (10) and an electronic device (1). The secondary battery includes a housing (110), an electrode assembly (120), and a current collector member (130). The electrode assembly includes a wound structure formed by stacking and winding a positive electrode sheet (121), a negative electrode sheet (123) and a separator (122). The positive electrode sheet includes a positive electrode coated area (1212), a positive electrode uncoated area (1213), which bents toward the winding axis (127) to form a stacked positive electrode uncoated area (125), and an insulation layer (128). The current collector member is welded to the stacked positive electrode uncoated area. A first insulation layer (1281) facing the winding axis and a second insulation layer (1282) facing away from the winding axis included in the insulation layer extend toward the stacked positive electrode uncoated area.
Nº publicación: EP4682999A1 21/01/2026
Solicitante:
LG ENERGY SOLUTION LTD [KR]
KOREA ADVANCED INST SCI & TECH [KR]
LG Energy Solution, Ltd,
Korea Advanced Institute of Science and Technology
Resumen de: EP4682999A1
The present disclosure relates to a negative electrode for lithium-free secondary battery which can improve the electrochemical and life time characteristics of a lithium-free secondary battery, a manufacturing method thereof and a lithium-free secondary battery. The negative electrode may include a conductive metal layer; and a lithium electrodeposition induction layer formed on the conductive metal layer and containing an intermetallic compound in which copper and zinc are bonded.
BOPI
Sede Electrónica
