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1452
resultados
Última actualización
04/05/2025 [07:15:00]
Resultados 950 a 975 de 1452
Resumen de: US2025132373A1
A framing assembly for a battery module having at least one battery cell stack. The framing assembly includes end plates for forming ends to the battery cell stack, side plates for forming sides to the battery cell stack, and locking plates for securing each end of the side plates to an end plate. The end plates have studs that project from the end plates, the side plates have open-ended slots to receive the studs and pins near the open-ended slots that project from the side plate. The locking plates have stud openings and pin openings that contain the studs and pins when securing the side plates to end plates. Fasteners engage with the studs to retain the locking plates on the studs and pins. Framing assembly maintains compression of the battery cell stacks.
Resumen de: US2025132376A1
A lithium-ion secondary battery is provided in the present disclosure, including a positive electrode with a first current collector and a first active material, a negative electrode, a separator between the positive electrode and the negative electrode, a field electrode at one side of the negative electrode opposite to the positive electrode, and a first insulating layer isolated between the negative electrode and the field electrode.
Resumen de: US2025132349A1
A cathode lithium-supplementing additive, a preparation method thereof, and an application thereof are disclosed. The cathode lithium-supplementing additive of the present application includes a lithium-supplementing material, the lithium-supplementing material includes fluorine atoms, and the fluorine atoms replace oxygen atoms in the lithium-supplementing material and are in oxygen vacancies. According to the present application, the cathode lithium-supplementing additive is doped with fluorine, has relatively good high-voltage stability and thermal stability and relatively high rate performance, reduces the content of residual alkali, has high storage stability and good processability, and can also reduce gas production, thereby improving the cycle performance, electrochemical performance, and safety performance of a corresponding battery. In addition, the preparation method of the cathode lithium-supplementing additive can ensure stable structure and electrochemical performance of the cathode lithium-supplementing additive, have high efficiency, and reduce the production cost.
Resumen de: WO2025081345A1
A potassium-embedded nickel-iron-manganese composite hydroxide, a sodium ion positive electrode material and preparation methods therefor, which belong to the technical field of sodium ion battery positive electrode materials. The preparation method for the potassium-embedded nickel-iron-manganese composite hydroxide comprises adding an additive during coprecipitation so as to perform doping of metal/non-metal ions. Compared with dry-mixing doping and sintering, the ions doped during the coprecipitation of a precursor are more uniformly distributed; in addition, performing potassium ion doping after the coprecipitation does not change the appearance of original particles, and under the action of a strong oxidant, potassium ions can enter hydroxide sites to form a prototype of a solid solution structure, so as to obtain a composite hydroxide solid solution. The potassium ions replace nickel/iron/manganese sites, thereby forming a single phase.
Resumen de: WO2025081765A1
A positive electrode sheet, a secondary battery, and an electric device. The positive electrode sheet comprises a positive electrode current collector, a positive electrode active material layer located on at least one side of the positive electrode current collector, and a base coating located between the positive electrode current collector and the positive electrode active material layer; the base coating comprises an additive, and the additive comprises a compound containing at least one group among a carboxylic acid group, a phosphate group, and a fluoro group. The provision of the base coating between the positive electrode current collector and the positive electrode active material layer can effectively reduce corrosion of an electrolyte to the positive electrode current collector. Moreover, the additive comprised in the base coating contains at least one group among the carboxylic acid group, the phosphate group, and the fluoro group and thus the additive can effectively complex and/or capture free aluminum ions, so that the effect of protecting the positive electrode current collector can be further achieved, and free aluminum ions can be prevented from migrating to a negative electrode, thereby avoiding damage to an SEI membrane by the free aluminum ions.
Resumen de: WO2025081348A1
The present disclosure relates to a method for separating, purifying and recovering an electrolyte, which method comprises the following steps: (1) mixing an electrolyte of a power battery with a stabilizer, and then subjecting same to a first reduced-pressure distillation treatment, so as to obtain an electrolyte solvent; (2) subjecting the electrolyte solvent obtained in step (1) to a second reduced-pressure distillation treatment, and separating same to obtain a first light component and a heavy component; and dehydrating the obtained first light component, so as to obtain a second light component; and (3) rectifying the second light component obtained in step (2), so as to obtain dimethyl carbonate, ethyl methyl carbonate and diethyl carbonate; and crystallizing and melting the heavy component obtained in step (2), so as to obtain ethylene carbonate. In the present disclosure, all the solvents in the electrolyte of a power battery are separated and purified to obtain a re-commercializable carbonate product having a high yield and a high purity, thereby achieving green cyclic utilization of the electrolyte.
Resumen de: US2025128614A1
The power supply device includes: a first battery module and a second battery module that can be charged by an external power source; a series circuit in which the first battery module and the second battery module are connected in series; a connection circuit that selectively forms a parallel circuit in which the first battery module and the second battery module are connected in parallel; a variable resistor provided in the connection circuit and interposed between the first battery module and the second battery module in the parallel circuit; and a control device that controls the resistance values of the opening and closing of the plurality of relays and the variable resistor. The control device is configured to be capable of performing a current adjustment process of continuously or stepwise lowering the resistance value of the variable resistor after the parallel circuit is formed by controlling the plurality of relays.
Resumen de: US2025130561A1
A simulation apparatus for secondary battery production is provided. The simulation apparatus for secondary battery production comprises a memory configured to store at least one instruction and at least one processor configured to execute the at least one instruction stored in the memory. The at least one instruction includes instructions for executing an apparatus operating unit including a 3D coater related to secondary battery production, a facility operating unit including a plurality of adjustment parameters for determining operation of the 3D coater, and a quality checking unit including quality information related to quality of a material produced by the 3D coater.
Resumen de: US2025130282A1
A battery measurement device of the present disclosure includes a first electrode contact terminal contacted with a first electrode of a battery to measure the voltage of the battery; and a second electrode contact terminal contacted with a second electrode of the battery to measure the voltage. At least one of the first electrode contact terminal and the second electrode contact terminal includes: a first protruding portion protruding from a reference position to a first length to be contacted with an opposing electrode; and a second protruding portion protruding from the reference position to a second length to be contacted with the opposing electrode when the first protruding portion is worn.
Resumen de: US2025130287A1
The battery evaluation system is a system for evaluating a storage battery including a lithium-ion battery. The battery evaluation system includes a battery monitoring unit that monitors a battery state of the storage battery, and an evaluation device that acquires battery state information including a monitoring result of the battery state from the battery monitoring unit and evaluates the storage battery based on the battery state information. The battery monitoring unit calculates a lithium precipitation amount in the lithium-ion battery as one index indicating the battery state. The evaluation device determines safety of the storage battery based on the lithium precipitation amount.
Resumen de: US2025130197A1
The present invention relates to an all-solid-state ion-selective electrode having an insertion material, and a method of manufacturing such an all-solid-state ion-selective electrode. The all-solid-state potassium ion-selective electrode (1) includes: a conductor (2); an insertion material (10) formed on a surface of the conductor (2); and a potassium ion-sensitive membrane (20) covering the insertion material (10). The insertion material (10) includes at least a Prussian blue analog represented by a structural formula KxFeFe(CN)6y·nH2O, where x is a numerical number larger than 0 and less than or equal to 2, y is a numerical number larger than 0 and less than or equal to 1, and n is a numerical number larger than or equal to 0.
Resumen de: US2025132424A1
The present disclosure provides a laminate battery having a reduced risk of the positive electrode current collector terminal corroding completely before the battery is fully discharged, and with which contact between salt water and charged electrode laminate can be suppressed. The laminate battery 1 of the present disclosure comprises an electrode laminate 10, a negative electrode current collector terminal 20, a positive electrode current collector terminal 30, and a laminate film 40. The positive electrode current collector terminal is formed of a metal which can be electrolytically corroded by a discharge potential of the electrode laminate, and (i) a volume of the positive electrode current collector terminal is greater than a volume which can be electrolytically corroded by a capacitance of the electrode laminate, and/or (ii) the positive electrode current collector terminal has a structure in which a cross-sectional area increases toward an end.
Resumen de: US2025132352A1
A battery cell, comprising a wet-laid nonwoven gauntlet defining a chamber, a plurality of polymeric fibers, a binder, and a positive active material housed in the chamber. The plurality of polymeric fibers have a linear mass density of between about 0.5 denier and 13.0 denier, and a length of between about 5 mm and 50 mm. The binder has a binder add-on percentage of between about 5% and 30%. The wet-laid nonwoven gauntlet has a basis weight with a coefficient of variation between about 1% and 5%.
Resumen de: US2025132337A1
One embodiment provides a negative active material for a lithium secondary battery, that includes a first graphite particle and a second graphite particle at a weight ratio of 80:20 to 95:5, and the particle diameter D50 of the second graphite particle is 80% or less of the particle diameter D50 of the first graphite particle. The lithium secondary battery containing the negative active material has excellent output characteristics and excellent productivity and economic efficiency.
Resumen de: US2025132589A1
An electronic device according to various embodiments of the disclosure may include a first charging circuit connected to a first node and a second node, a second charging circuit connected to the first node and a third node, a switch connected to the second node and the third node, a battery connected to the second node, a system circuit connected to the third node, and a processor. In addition, various embodiments may be possible.
Resumen de: US2025132383A1
An all-solid secondary battery includes a solid electrolyte layer disposed between an anode layer and a cathode layer, where the solid electrolyte layer contains a first solid electrolyte layer including a first solid electrolyte and a second electrolyte layer including a second solid electrolyte, where the first solid electrolyte is disposed proximate to the anode layer, the second solid electrolyte layer is disposed proximate to the cathode layer, and the first solid electrolyte has a lithium ion conductivity greater than a lithium ion conductivity of the second solid electrolyte, where a difference between the lithium ion conductivity of the first solid electrolyte and the lithium ion conductivity of the second solid electrolyte is equal to or greater than about 2 mS/cm.
Resumen de: US2025130177A1
An electrode assembly alignment inspection apparatus according to one embodiment of the present disclosure comprises: a stacking table to which an electrode assembly including an electrode plate and a separator is supplied; a holder disposed on the stacking table to support an edge region of the electrode plate and the separator; an photographing unit photographing the electrode plate and the separator supplied to the stacking table; and a lighting unit irradiating light to the stacking table, wherein the holder includes a plurality of holes exposing a boundary between the electrode plate and the separator, and the lighting unit includes an auxiliary lighting disposed on the stacking table to illuminate portions exposed through the plurality of holes.
Resumen de: US2025130289A1
An abnormality detection method of a sub battery (LFP type battery) for backing up a main battery that includes the steps of charging the sub battery to a fully charged state, discharging a predetermined current amount from the fully charged sub battery, maintaining the sub battery in a state where the current becomes equal to or less than a predetermined value until a predetermined time elapses, discharging a detection current for detecting an abnormality of the sub battery from the sub battery after a predetermined time elapses, calculating a voltage drop amount, which is a difference between the cell voltage at the start of discharge of the detection current and the cell voltage at the end of discharge, for a plurality of battery cells constituting the sub battery, respectively, and determining that the sub battery is abnormal.
Resumen de: US2025130283A1
An apparatus for diagnosing a battery according to one aspect of the present disclosure may include a measuring unit configured to measure a voltage value of the battery at each predetermined cycle during a battery charging process; and a processor configured to calculate a resistance value of the battery based on the measured voltage value of the battery, determine a resistance change pattern by comparing the calculated plurality of resistance values with a preset criterion profile, and determine the state of the battery based on the determined resistance change pattern.
Resumen de: US2025130284A1
The invention relates to a measurement system for measuring energy cells, for example battery cells, in particular dry monocells, wherein the measurement system has an alternating voltage measuring bridge or a self-balancing measuring bridge (auto-balancing bridge) and is designed to measure the electrical capacitance (C) and/or the ohmic resistance (R) of an energy cell by means of a high-frequency measurement. The invention further relates to a corresponding method.
Resumen de: US2025132350A1
A battery current collector plate and a battery, the current collector plate comprising a current collector plate body and a weld zone, the current collector plate body having a first face for contacting a rolled core, and a second face opposite the first face; at least a portion of the second face is provided with the weld zone, and the weld zone has a lower laser reflectivity than the first face. In the present utility model, the weld zone of low laser reflectivity is provided on the current collector plate, such that a surface of the current collector plate absorbs laser energy more effectively, thereby increasing the efficiency and precision of welding. At the same time, the weld zone of low laser reflectivity can also reduce the temperature and the amount of heat generated during laser welding, thereby safeguarding the performance and stability of a rolled core assembly.
Resumen de: US2025132372A1
A cell is provided, including a main body formed by winding electrode sheets and a separator. The main body is a flat structure with a length direction and a width direction. The first length L1 of the main body along the length direction is greater than the first width W1 of the main body along the width direction. The width direction of the main body is perpendicular to the plane where the winding direction of the main body is located. The cell has a width direction perpendicular to the plane where the winding direction of the main body is located, thereby shortening the infiltration path of the electrolyte and improving the infiltration rate and infiltration effect of the electrolyte. A prismatic battery is also provided.
Resumen de: US2025132370A1
Provided is a mold-type secondary battery pouch cell terrace folding device for folding an edge of a secondary battery pouch cell, which allows adjustments of a roller gap and a press unit gap by replacing a stopper, the device adjusting the gap by including: an upper mount including an upper roller disposed on the upper mount in a length direction; a lower mount including a lower roller disposed on the lower mount in the length direction; a support vertical to an upper surface of the lower mount and passing through the upper and lower mounts to move the upper mount vertically; and a block disposed between the upper mount and the lower mount to adjust a gap between the upper roller and the lower roller.
Resumen de: US2025132345A1
A nonaqueous electrolyte secondary battery includes a positive electrode, a negative electrode, and a nonaqueous electrolyte. The positive electrode includes a positive electrode current collector, and a positive electrode mixture layer supported on the positive electrode current collector. The negative electrode includes a negative electrode current collector, and a negative electrode mixture layer supported on the negative electrode current collector. The negative electrode mixture layer includes a negative electrode active material capable of absorbing and releasing lithium ions, and negative-electrode-side carbon nanotubes. The positive electrode mixture layer includes a positive electrode active material capable of absorbing and releasing lithium ions, and positive-electrode-side carbon nanotubes. The expansion rate during charging of the negative electrode is 10% or more.
Nº publicación: US2025132418A1 24/04/2025
Solicitante:
LG ENERGY SOLUTION LTD [KR]
LG ENERGY SOLUTION, LTD
Resumen de: US2025132418A1
An energy storage system includes a rack container having a predetermined accommodation space, a plurality of battery racks disposed in the rack container and respectively having a coolant tank in which a predetermined coolant is contained, and at least one flux supplement unit configured to connect the coolant tanks of the plurality of battery racks.
BOPI
Sede Electrónica
