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1724
resultados
Última actualización
23/03/2026 [07:26:00]
Resultados 950 a 975 de 1724
Resumen de: US20260074278A1
A solid electrolyte layer for a lithium secondary battery that suppresses the generation of internal short-circuit caused by a dendrite composed of lithium metal is provided. The solid electrolyte layer includes a plurality of particles of a first solid electrolyte and a second solid electrolyte coating a surface of the plurality of particles and filling in a space among the plurality of particles. The second solid electrolyte is a sulfide solid electrolyte or an oxide solid electrolyte.
Resumen de: US20260074276A1
The present disclosure relates to an electrolyte product (1), formed as a solid or semi-solid layer, comprising a polymer-based matrix, having dispersed therein an amount of an electrolyte salt composition (4) and an amount of an additive salt composition (5). The disclosure further relates to a method of manufacturing a battery cell product, a battery cell product comprising the electrolyte product, and a battery product comprising a plurality of battery cell products.
Resumen de: US20260074270A1
A device for pressing and sealing an all-solid-state secondary battery protects one or more all-solid-state secondary batteries placed in an internal space created by a first cover and a second cover being vacuum-sealed to each other from heat-transfer fluid, while preventing bending or warping that may occur in the secondary batteries during a WIP process.
Resumen de: US20260074389A1
Disclosed is a battery cell, which includes an electrode assembly having a cell body and an electrode tab extending from the cell body; a cell case having an accommodation portion configured to accommodate the electrode assembly and a circumferential portion extending outward from the accommodation portion; an electrode lead electrically coupled to the electrode tab; and a conductive frame disposed on a first surface of the circumferential portion and electrically coupled to the electrode lead through the first surface of the circumferential portion.
Resumen de: US20260074404A1
A double-sealed battery top cover assembly, which includes an upper cover, a terminal post, a sealing ring, an upper insulating part, a riveting block, and a sealant. The bottom of the terminal post is provided with a mounting plate, the upper insulating part is arranged between the upper cover and the riveting block, the upper insulating part is provided with a flow guiding groove communicated with a clearance space, the riveting block is provided with a filling port communicated with the flow guiding groove, and the sealant and the sealing ring form a double seal for the clearance space. Through a double seal function of the sealing ring and the sealant, electrolyte leakage in a short-circuit test is avoided.
Resumen de: US20260074391A1
A conductive structure and a manufacturing method, a cover plate assembly, and a battery cell are provided. The conductive structure includes a metal post including a first end and a second end opposite to each other. A metal layer bonded to a surface of the metal post. The metal layer wraps the first end and extends toward the second end. The metal layer bonded to the surface of the first end of the metal post is arranged to extend from the surface of the first end of the metal post to the second end.
Resumen de: US20260074402A1
A secondary battery, including an electrode assembly including a first electrode, a second electrode, and a separator, a case configured to accommodate the electrode assembly, the case having one opening, a cap plate coupled to the one opening of the case, the cap plate including an injection port into which an electrolyte is injected, and a gas discharge portion coupled to the injection port of the cap plate, the gas discharge portion configured to discharge gas generated inside the case.
Resumen de: US20260074547A1
Embodiments of the present application provide a charging and discharging apparatus and a battery charging method, which are capable of ensuring security performance of a battery. The apparatus comprises a bi-directional DC/DC converter and a control unit, wherein the control unit is configured to: receive a first charging current transmitted by a battery management system (BMS) of a battery, control the bi-directional DC/DC converter based on the first charging current to charge the battery through an energy storage battery; receive a first discharging current transmitted by the BMS and control the bi-directional DC/DC converter based on the first discharging current to discharge a battery capacity of the battery to the energy storage battery; and receive a second charging current transmitted by the BMS and control the bi-directional DC/DC converter based on the second charging current to charge the battery through the energy storage battery.
Resumen de: US20260072093A1
The disclosed method is a method for measuring the internal resistance of a battery. The measurement method includes a conduction step of charging or discharging the battery, a measurement step of measuring an open circuit voltage of the battery at the end time of the charging or discharging and thereafter, and a calculation step of individually calculating at least one resistance component included in the internal resistance, based on a voltage change of the open circuit voltage measured in the measurement step and a current value of current flowing through the battery for the charging or discharging at the end time. In the calculation step, the at least one resistance component is calculated based on a slope of a line obtained by plotting the voltage change in a graph in which a horizontal axis indicates a square root of an elapsed time from the end time and a vertical axis indicates the open circuit voltage.
Resumen de: US20260072085A1
A jig for measuring three electrode voltages includes: a jig body having a receiving portion for a secondary battery; a jig door for sealing the receiving portion; a positive electrode on the receiving portion, electrically connected to a positive electrode tab, and protruding outwardly; a negative electrode on the receiving portion of the jig body, being in contact with and electrically connected to a conductive member electrically connected to the secondary battery, and protruding outwardly; and a reference electrode inserted into a winding core of an electrode assembly of the secondary battery in the receiving portion while extending through a top plate of the jig body and protruding to an upper portion of the jig body. The reference electrode comprises a metal wire and a metal cap wrapping around the metal wire, and a length of the metal cap is in a range of 15 mm to 20 mm.
Resumen de: US20260072095A1
An electronic device obtains input data through a detection circuit, standardizes each of column vectors of the input data to obtain standardized data for the input data, obtains determination reference data based on the standardized data, and determines first state abnormality and/or second state abnormality of each of the M battery cells based on values indicated by the entries of respective row vectors of the determination reference data. The first state abnormality is determined based on a learning-based model, and the second state abnormality is determined based on a scheme other than the learning-based model.
Resumen de: US20260072091A1
A method of manufacturing a power storage device including plural power storage cells includes a wire forming process of forming a wire of the power storage device such that adjacent power storage cells in the power storage device are connected to a common wire, and a resistance measuring process of measuring an electrical resistance of at least a part of the formed wire. In the resistance measurement process, the voltage of the open circuit including the second power storage cell and the common wire portion is measured while a current is supplied to the closed circuit including the first power storage cell and the common wire portion with respect to the common wire portion of the first power storage cell and the second power storage cell adjacent to each other in the power storage device, and the electrical resistance of the common wire portion is acquired using the measured voltage.
Resumen de: US20260074280A1
A rechargeable lithium battery that includes a positive electrode including a positive electrode active material layer and a current collector; a negative electrode; and an electrolyte solution is provided. The positive electrode active material layer and the electrolyte solution include an additive, a total amount of the additive included in the positive electrode active material layer and the additive included in the electrolyte solution is at least about 0.1 wt % and at most about 1 wt % based on a total positive electrode active material layer. A boiling point of the additive is greater than about 200° C.
Resumen de: US20260074273A1
A separator for a lithium battery having (a) a porous polymeric layer, such as a polyethylene layer, and (b) a nanoporous inorganic particle/polymer layer on both sides of the polymeric layer, the nanoporous layer having an inorganic oxide and one or more polymers; the volume fraction of the polymers in the nanoporous layer is about 15% to about 50%, and the crystallite size of the inorganic oxide is 5 nm to 90 nm.
Resumen de: US20260074275A1
The present invention relates to a solid composite electrolyte comprising a) at least one fluoropolymer and b) at least one sulfide-based solid ionic conducting inorganic particle, wherein a) the fluoropolymer comprises recurring units derived from i) at least 50.0 mol % of vinylidene difluorides, the mol % being relative to the total moles of recurring units; ii) at least one C2-C8 chloro and/or bromo and/or iodo fluoroolefin; and iii) at least one C2-C8 fluoroolefin, wherein i), ii) and iii) are different from each other; to a slurry for manufacturing a solid composite electrolyte comprising a) at least one fluoropolymer according to the present invention and b) a sulfide-based solid ionic conducting inorganic particle, and c) at least one non-aqueous solvent; to an electrode comprising a solid composite electrolyte according to the present invention, d) at least one electroactive material, and optionally e) at least one conductive agent; and to a solid state battery comprising a positive electrode, a negative electrode and a membrane, at least one among which comprises a solid composite electrolyte according to the present invention. The present invention also relates to a binder solution for a solid state battery comprising a) at least one fluoropolymer according to the present invention and c) at least one non-aqueous solvent.
Resumen de: US20260074286A1
The present invention relates to a novel electrolyte additive, a non-aqueous electrolyte for a lithium secondary battery comprising the novel electrolyte additive, and a lithium secondary battery comprising the non-aqueous electrolyte. More specifically, the present invention relates to a non-aqueous electrolyte for a lithium secondary battery comprising an additive capable of forming a stable film on an electrode surface. The present invention also relates to a lithium secondary battery comprising such a non-aqueous electrolyte, thereby, a high temperature lifespan of the lithium secondary battery is not deteriorated, resistance does not increase when the lithium secondary battery is stored at a high temperature, and expansion of a volume (thickness) of the lithium secondary battery is suppressed when the lithium secondary battery is stored at a high temperature.
Resumen de: US20260074264A1
An apparatus for manufacturing a battery cell for processing a sealing part of a battery cell, the sealing part being formed on one side of a body part in which an electrode assembly is accommodated, includes: a support unit including a first support portion and a second support portion supporting the battery cell in different directions; and a pressing unit moving toward the support unit to bend the sealing part, wherein the first support portion reciprocates in a first direction, the second support portion reciprocates in a second direction, and the second direction is inclined with respect to the first direction.
Resumen de: US20260074401A1
A method of manufacturing a secondary battery, the method including providing a battery can with an opening and a terminal-side surface, the terminal-side surface including a terminal, providing a cover, the cover being bonded onto the opening of the battery can, assembling an electrode assembly, accommodating the electrode assembly in the battery can and mounting the same, such that the electrode assembly faces the opening, injecting an electrolyte into the battery can within which the electrode assembly is accommodated, pressurizing and precharging the electrode assembly, and bonding the cover onto the opening of the battery can.
Resumen de: US20260074542A1
The present application relates to a surgical instrument and an assembling method therefor. A power source discharging mechanism includes a circuit board and a sliding member. The circuit board includes a discharging circuit, a conductive sheet, and a conductive contact surface. A fixed terminal of the conductive sheet is fixed to the circuit board, and the conductive contact surface faces an extension section of the conductive sheet. The sliding member is opposite to the conductive sheet and can linearly move relative to the power source assembly. At a first position, at least a portion of the extension section of the conductive sheet is separated from the conductive contact surface. At a second position, at least a portion of the extension section of the conductive sheet is in contact with the conductive contact surface.
Resumen de: US20260074375A1
This application relates to the field of power batteries and provides a battery cell, a battery, and a power-consuming apparatus. The battery cell includes an adapter with a protruding welding point and a covering member connected to the adapter. An accommodating cavity is formed between the covering member and the adapter to house at least part of the welding point. The structure allows the covering member to fit more closely to the adapter around the welding point, reducing suspension or detachment of the covering member. As a result, adhesion between the covering member and the adapter is improved, enhancing structural reliability and performance of the battery cell.
Resumen de: US20260074397A1
A conductive module, a cover plate assembly, and a battery cell are provided. The conductive module includes a pole, where the pole includes a metal post and a metal layer bonded on a surface of the metal post. The metal layer includes a clamping portion; and a terminal pressing block connected to the pole. The clamping portion is clamped between the metal post and the terminal pressing block. The pole is provided to include the metal post and the metal layer, and the pole is connected to the terminal pressing block. A portion (i.e., the clamping portion) of the metal layer is clamped between the metal post and the terminal pressing block.
Resumen de: US20260074342A1
A battery pack case according to an embodiment of the present disclosure includes a housing having an accommodation space therein, and a partition plate disposed in the accommodation space to partition the accommodation space, wherein the partition plate may include a first member forming an outer surface of the partition plate, and a second member disposed inside the first member and connected to an inner surface of the first member, the second member being disposed in a diagonal direction with respect to an outer surface of the first member.
Resumen de: WO2026051446A1
The present application relates to the technical field of current collectors, specifically to a composite copper current collector and a preparation method therefor. In the present application, a modified polymer film is obtained by means of subjecting a polymer and an active material to heating and melting, extrusion, casting, and biaxial stretching processes; copper layers are formed on the upper and lower sides of the modified polymer film, respectively, using a chemical plating method; finally, an anti-oxidation layer is prepared on the copper layers, thereby obtaining a composite copper current collector. The composite copper current collector prepared by means of the present application realizes one-step preparation of a composite copper current collector, namely a chemical plating method, successfully solving the problems of high energy consumption and low yield caused by physical vapor deposition process in conventional preparation processes. Compared with conventional methods, the performance of the composite copper current collector prepared by the present application is not degraded, while energy consumption is greatly reduced and yield is increased.
Resumen de: WO2026051440A1
The present disclosure relates to the technical field of batteries. Disclosed are a battery cell, a battery device, and an electric apparatus. The battery cell comprises a pole, an electrode assembly, a casing, and a fixing member, wherein the pole is electrically connected to the electrode assembly; the electrode assembly is arranged in the casing; the casing has a first wall; the pole is arranged on the first wall; the fixing member comprises a first flat portion, a transition portion, and a second flat portion; the transition portion is located between the first flat portion and the second flat portion; the first flat portion is engaged with the pole; the second flat portion is connected to the first wall; at least one of the thickness of the first flat portion in the axial direction of the pole, the thickness of the second flat portion in the axial direction of the pole, and the thickness of the transition portion in a direction perpendicular to the axial direction of the pole is greater than 0.8 mm and less than or equal to 1.5 mm.
Nº publicación: US20260072094A1 12/03/2026
Solicitante:
IBATTERYCLOUD CO LTD [CN]
Ibatterycloud Co.Ltd
Resumen de: US20260072094A1
Disclosed is a battery aging assessment method based on multi-source and multi-scale high-dimensional state space modeling in the field of energy storage in renewable power systems. The method includes: acquiring a time series of each discharge process within a preset number of discharge cycles of a sample battery; determining a first state transition path and a second state transition path based on discharge parameters corresponding to the time series; establishing a benchmark working-state transition path; calculating multiple sample distances between the second state transition path and the benchmark working-state transition path; training a battery aging assessment model using the sample distances as input and corresponding target state-of-health values as output; calculating a target distance between a state transition path of a to-be-predicted target battery and the benchmark working-state transition path.
BOPI
Sede Electrónica
