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1373
resultados
Última actualización
13/12/2025 [07:31:00]
Resultados 400 a 425 de 1373
Resumen de: US2025372733A1
Techniques for dynamically interleaving measurement data into a wireless schedule for control data communication is described herein. A dual network manager architecture can be used for interleaving upstream transmission of measurement data from battery clusters into the wireless schedule of transmitting downstream control data from the network managers.
Resumen de: US2025372719A1
An electrochemical device is disclosed that includes an ionically conducting electrolyte, a first electrode and a second electrode. The electrodes are in contact with the ionically conducting electrolyte, and a housing encloses the electrodes and the ionically conducting electrolyte. The ionically conducting electrolyte comprises a liquefied gas solvent, an ester solvent, and a salt. The liquefied gas solvent has a vapor pressure above 100 kPa at a temperature of 293.15K. The salt and ester are soluble in the liquefied gas solvent such that the ionically conducting electrolyte is a liquid under pressure.
Resumen de: US2025372706A1
A polymer electrolyte can be formed from (e.g., by polymerizing) a mixture that includes oligomer(s), additive(s), solvent(s), salt(s), and/or any suitable components. The polymer electrolyte can further or alternatively include monomer(s) (e.g., a stiffening monomer that in solution or incorporated into a cured polymer modifies a mechanical property such as flexural modulus of the battery cell; adhesion monomers such as a monomer that interacts with one or more surface within a battery to modify or improve adhesion of the electrolyte and the surface; etc.).
Resumen de: US2025372743A1
Disclosed are approaches for recycling LIBs where lithium is recovered before the other node metals in order to increase the amount of lithium recovered. For such approaches, the other node metals need not be further refined or recovered and, despite the small loss of these other node metals as impurities in the first-recovered lithium, the available alternative dispositions for these other node metals—such as in the form of multi-metal-oxides (MMO)—can render the recovery of lithium before the other node metals to be advantageous. Several such approaches may feature nitration, roasting, lithium trapping, and/or other innovative features to facilitate greater and purer recoveries of the target LIB components.
Resumen de: US2025372724A1
A method for producing accumulators which each have at least one cell stack, wherein to produce the cell stack, individual sheets are stacked via a stacking device in that the individual sheets are fed one after the other via a conveying line of the stacking device to a stacking wheel arrangement of the stacking device. The stacking wheel arrangement has two stacking wheels which are arranged in two planes one above the other. A predefined number of successive individual sheets are fed to one of the two stacking wheels. The predefined number corresponds to the number of individual sheets in a finished cell stack. A plurality of the individual sheets following the predefined number of individual sheets are fed to the other of the two stacking wheels.
Resumen de: US2025372713A1
An electrochemical device includes a negative electrode plate and an electrolyte solution. The negative electrode plate includes a negative electrode material layer. The negative electrode material layer includes a silicon-carbon negative electrode material. The silicon-carbon negative electrode material includes a dopant element. The dopant element includes at least one of elements B, P, or S. The electrolyte solution includes a compound represented by Formula I and fluoroethylene carbonate.
Resumen de: US2025372751A1
This thermal management apparatus for energy storage batteries in cold regions combines a battery enclosure and a diesel-fired circulation heater. The enclosure comprises an enclosure body with dual-layer outer/inner housings separated by a first vacuum insulation layer, and a cover mounted atop the enclosure body containing a second vacuum layer. The inner housing incorporates a water reservoir interlayer connected to two upper-mounted delivery pipes. The cover features water delivery ports fitted with adapters coupling to the pipes, along with a cable routing hole accessing the inner housing. The heater forms a closed hydraulic loop by connecting its inlet and outlet to respective adapters. A temperature sensor installed on the inner housing's interior wall is linked to the heater for operational control. The dual vacuum insulation layers synergize with the circulating water system to maintain optimal battery temperature while minimizing heat dissipation.
Resumen de: US2025373032A1
Disclosed is a fast switch-off circuit for a charging tube of a battery management system, which includes a control circuit, a pull-down discharge circuit, and a discharge detection circuit. The control circuit synchronously switches on the pull-down discharge circuit when switching off the charging tube; and switches off the pull-down discharge circuit when detecting a trigger signal. The pull-down discharge circuit pulls down a gate voltage of the charging tube to a ground potential so as to discharge fast, when being switched on. The discharge detection circuit generates and transmits the trigger signal to the control circuit, when the gate voltage of the charging tube drops to a low-level threshold or a pull-down time of the charging tube reaches a time threshold, after the pull-down discharge circuit is switched on. The fast switch-off circuit ensures fast switch-off for a charging tube of a battery management system, while minimizing power consumption.
Resumen de: US2025372690A1
A heating press for pressing a folded portion formed on a terrace disposed on at least a portion of a circumference of an electrode-accommodating portion of a battery cell, including a first press including a first pressing surface pressing a first surface of the folded portion; and a second press including a second pressing surface pressing a second surface of the folded portion and a protruding pressing surface pressing an inner side region of the terrace, wherein the protruding pressing surface protrudes from the second pressing surface toward the first pressing surface and presses the inner side region together with the first pressing surface, and the inner side region is located between the folded portion and the electrode-accommodating portion, is disclosed.
Resumen de: US2025372658A1
An electrode plate includes a substrate, an active material layer on the substrate, a hydrophobic coating layer on at least an edge of the active material layer, the hydrophobic coating layer having a hydrophobic functional group, and an insulating portion at a boundary between the active material layer and the substrate, the insulating portion covering at least a part of a side surface of the active material layer below the hydrophobic coating layer.
Resumen de: US2025372659A1
A positive electrode of a secondary battery includes: a positive electrode active material layer, which in turn includes a positive electrode active material, a conductive material, a binder, and a positive electrode additive. The positive electrode additive includes substituents with a cyclic sulfonic ester (sultone) or cyclic sulfate structure, so that the oxygen release from a positive electrode active material is suppressed, which improves the structural stability of the positive electrode active material.
Resumen de: US2025372630A1
The present disclosure relates to an electrode for a rechargeable lithium battery and a rechargeable lithium battery including the electrode. The electrode for a rechargeable lithium battery includes a current collector, and an active material layer on the current collector. The current collector includes a base having a surface on which an irregular pattern is formed and a carbon material- and binder-containing layer laminated on the surface. The active material layer is on the carbon material- and binder-containing layer.
Resumen de: US2025372628A1
Disclosed are a positive electrode, a preparation method thereof, and a rechargeable lithium battery including the positive electrode. The positive electrode includes a positive electrode current collector, a positive electrode active material layer on the positive electrode current collector, and a positive electrode coating layer between the positive electrode current collector and the positive electrode active material layer. The positive electrode coating layer includes a graphite-based material, a phosphorus-based extinguishing agent, and a binder, and the positive electrode coating layer includes about 1 part by weight to about 45 part by weight of the phosphorus-based extinguishing agent based on 100 parts by weight of a total of the graphite-based material and the phosphorus-based extinguishing agent.
Resumen de: US2025372625A1
A negative electrode for nonaqueous electrolyte secondary batteries comprises a negative electrode mixture layer and is characterized in that: the negative electrode mixture layer comprises a first negative electrode mixture layer, and a second negative electrode mixture layer; the first negative electrode mixture layer contains graphite particles A; the second negative electrode mixture layer contains the graphite particles A and graphite particles B which have a lower internal void fraction than the graphite particles A; the second negative electrode mixture layer comprises a first region and a second region; the content ratio of the graphite particles B in the first region is higher than the content ratio of the graphite particles in the second region; and the ratio (T1/T2) of the thickness (T1) of the first negative electrode mixture layer to the thickness (T2) of the second negative electrode mixture layer is within the range of 0.66 to 4.00.
Resumen de: US2025372749A1
A solid-state battery includes two or more stacked battery units. Each battery unit includes a first current collector, a first active material layer, a solid electrolyte layer, a second active material layer, a second current collector, a second active material layer, a solid electrolyte layer, a first active material layer, and a first current collector, which are stacked in this order. The two or more stacked battery units include an adhesive portion that adheres first current collectors opposed to each other in a stacking direction between adjacent battery units. A peel strength of the adhesive portion is less than a peel strength in the battery unit.
Resumen de: US2025372838A1
Disclosed is a battery capable of improving connectivity between a terminal and a current collector part while improving structural efficiency around them. The battery of the present disclosure includes an electrode laminate, a current collector part, and a terminal. The electrode laminate is electrically connected to the terminal via the current collector part. The terminal includes a base and a protrusion. The base has a first surface facing the electrode laminate and a second surface opposite the first surface. The protrusion protrudes from the base toward the electrode laminate. The protrusion includes a first protrusion and a second protrusion. The first protrusion has a third surface facing the second protrusion. The second protrusion has a fourth surface facing the first protrusion. The current collector part is in contact with one or both of the first surface and the third surface. The second protrusion is welded to the base.
Resumen de: US2025372652A1
Provided is a binder composition for an all-solid-state secondary battery that can reduce internal resistance of an all-solid-state secondary battery while also imparting excellent adhesiveness to a functional layer for an all-solid-state secondary battery. The binder composition for an all-solid-state secondary battery contains a copolymer including a nitrile group-containing monomer unit and a solvent. The solvent includes an ester solvent having a carbon number of 6 or more. Proportional content of the nitrile group-containing monomer unit in the copolymer is 10 mass % to 22 mass % when all repeating units in the copolymer are taken to be 100 mass %. The copolymer has a tetrahydrofuran-insoluble fraction of 0.5 mass % to 3 mass %, and a copolymer solution obtained when the copolymer is dissolved in the solvent such that concentration of the copolymer is 8 mass % has a haze of 30% to 80%.
Resumen de: US2025372734A1
A bus connector for an energy storage system is provided. The bus connector includes a printed circuit board including a first plurality of metal plates, a second plurality of metal plates, a plurality of bus taps, a plurality of conducting stripes, and a temperature sensor. The first plurality of metal plates is coupled to first terminals of the first battery module. The second plurality of metal plates is coupled to second terminals of the second battery module. Each of the first plurality of metal plates, each of the second plurality of metal plates, and the temperature sensor are connected to a respective bus tap of the plurality of bus taps through a respective conducting stripe of the plurality of conducting stripes. The temperature sensor is configured to sense a temperature of at least one of the first battery module and the second battery module.
Resumen de: US2025372744A1
Disclosed are approaches for recycling LIBs where lithium is recovered before the other node metals in order to increase the amount of lithium recovered. For such approaches, the other node metals need not be further refined or recovered and, despite the small loss of these other node metals as impurities in the first-recovered lithium, the available alternative dispositions for these other node metals—such as in the form of multi-metal-oxides (MMO)—can render the recovery of lithium before the other node metals to be advantageous. Several such approaches may feature nitration, roasting, lithium trapping, and/or other innovative features to facilitate greater and purer recoveries of the target LIB components.
Resumen de: US2025372716A1
Improved battery systems with two-additive mixtures including in an electrolyte solvent that is a carbonate solvent, an organic solvent, a non-aqueous solvent, methyl acetate, or a combination of them. The positive electrode of the improved battery systems may be formed from lithium nickel manganese cobalt compounds, and the negative electrode of the improved battery system may be formed from natural or artificial graphite.
Resumen de: US2025372747A1
Disclosed are approaches for recycling LIBs where lithium is recovered before the other node metals in order to increase the amount of lithium recovered. For such approaches, the other node metals need not be further refined or recovered and, despite the small loss of these other node metals as impurities in the first-recovered lithium, the available alternative dispositions for these other node metals—such as in the form of multi-metal-oxides (MMO)—can render the recovery of lithium before the other node metals to be advantageous. Several such approaches may feature nitration, roasting, lithium trapping, and/or other innovative features to facilitate greater and purer recoveries of the target LIB components.
Resumen de: US2025372750A1
A battery pack thermal runaway suppression system positioned in a battery pack and including a bladder located proximate a plurality of battery cells that contains a fire-retardant material, a plurality of first blades configured to pierce the bladder to release the fire-retardant material within the housing, a plurality of second blades configured to pierce at least one of the coolant inlet line, heat sink, and coolant outlet line to release the coolant within the housing, and a plurality of actuation devices that are configured to actuate the plurality of first blades and plurality of second blades.
Resumen de: US2025373008A1
A power supply circuit and an electronic device. The power supply circuit includes: a battery module, where the battery module includes at least one power supply branch, each power supply branch includes a first battery cell and a second battery cell, and a negative electrode of the first battery cell in each power supply branch is connected to a positive electrode of the second battery cell; a first voltage converter, where an input terminal thereof is connected to a positive electrode of the first battery cell, an output terminal thereof is connected to a first load; and a second voltage converter, where an input terminal thereof is connected to the positive electrode of the second battery cell, an output terminal thereof is connected to a second load.
Resumen de: US2025372646A1
A battery cell, a battery including the battery cell, and an electrical apparatus are provided. The battery cell includes a positive electrode plate and an electrolyte solution. The positive electrode plate contains a positive electrode active material comprising an inner core and a coating layer. The inner core includes a lithium-containing complex with nickel, cobalt, manganese, and additional elements selected from one or more of zirconium, strontium, boron, titanium, magnesium, tin, terbium, tungsten, niobium, antimony, or aluminum, as well as anions selected from sulfur, nitrogen, fluorine, chlorine, bromine, or iodine. The coating layer includes one or more metal elements selected from cobalt, zirconium, strontium, boron, titanium, magnesium, tin, terbium, tungsten, niobium, antimony, or aluminum. The electrolyte solution includes an additive containing an organic compound with both silicon-nitrogen and silicon-oxygen bonds. This combination improves the electrochemical performance and stability of the battery during operation.
Nº publicación: US2025372737A1 04/12/2025
Solicitante:
VOLVO TRUCK CORP [SE]
VOLVO TRUCK CORPORATION
Resumen de: US2025372737A1
An energy storage system has a collection of one or more battery modules and a battery management system associated with the collection of battery modules. The battery management system is detects a battery event which indicates potential upcoming damage for the collection of battery modules. The battery management system also selects—based on a type of the battery event (e.g., temperature event, electrical event, chemical event)—a sub-set of measurement data from a set of available measurement data relating to the collection of battery modules, and causes the selected sub-set of measurement data to be stored at a storing location which is unaffected by the potential upcoming battery damage for the collection of battery modules.
BOPI
Sede Electrónica
