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1509
resultados
Última actualización
17/03/2026 [07:16:00]
Resultados 150 a 175 de 1509
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: WO2026054362A1
The present invention relates to a solid electrolyte membrane and an all-solid-state battery comprising same, and more specifically, comprises: a first solid electrolyte having a particle form and having a first average particle diameter; and a second solid electrolyte having a fine particle form and having a long axis length of 1 μm or less, wherein the first average particle diameter is 2 μm to 10 μm, and the weight ratio of the second solid electrolyte to the total weight of the first and second solid electrolytes is 10 wt% to 30 wt%.
Resumen de: WO2026054317A1
A communication ID allocation system according to an embodiment of the present disclosure comprises a plurality of slave BMSs for storing a plurality of first certificates, respectively, and a master BMS including a certificate chain, wherein the master BMS includes a memory for storing the certificate chain, and a processor for: receiving a plurality of first certificates from the plurality of slave BMSs, respectively, by transmitting a certificate transmission request signal to the plurality of slave BMSs when communication connections to the plurality of slave BMSs are detected; verifying integrity of each of the plurality of first certificates by using the certificate chain; determining the validity of each of the plurality of slave BMSs on the basis of whether the integrity of each of the plurality of first certificates is secured; and allocating first communication IDs to valid slave BMSs among the plurality of slave BMSs.
Resumen de: WO2026054320A1
A battery system, according to one embodiment of the present invention, may comprise: an upper BMS; and a plurality of lower BMSs. Here, the upper BMS and the lower BMSs may be communicatively connected via a communication bus. In addition, each of the lower BMSs may be connected to a filter for reducing communication noise, and the upper BMS may be connected to a compensation circuit for compensating for attenuation of a communication signal caused by the filters.
Resumen de: WO2026054394A1
The present invention relates to a recycling method for recovering and recycling battery-grade lithium carbonate (Li2CO3) from waste lithium-ion batteries, and to a system applying same. Recycled lithium carbonate crystals of the present invention have a very high proportion of plate-shaped crystals while having high purity, and thus, battery-grade recycled lithium carbonate can be produced and provided with high economic efficiency.
Resumen de: WO2026054396A1
A battery module according to one embodiment of the present invention comprises: a plurality of battery cells; a module case configured to accommodate the battery cells; a top cover configured to cover an upper portion of the module case; end plates provided at both ends of the module case in the longitudinal direction; and an isolation cover interposed between the battery cells and the end plates and configured to be structurally coupled to the end plates.
Resumen de: WO2026051493A1
The present application provides a battery apparatus (100) and an electric device. The battery apparatus (100) comprises: a case (2); a battery cell (10) arranged inside the case (2); and a low-voltage acquisition assembly (3) arranged inside the case (2), the low-voltage acquisition assembly (3) being used for acquiring operating state parameters of the battery cell (10), and the operating state parameters including voltage and temperature. The low-voltage acquisition assembly (3) comprises: a first sampling member (31), the first sampling member (31) being connected to the battery cell (10) so as to acquire the voltage of the battery cell (10); a second sampling member (32), one end of the second sampling member (32) being detachably connected to the first sampling member (31) so as to transmit the voltage; a third sampling member (33), the third sampling member (33) being detachably connected to the other end of the second sampling member (32) so as to transmit the voltage; and a fourth sampling member (34), the fourth sampling member (34) being connected to the second sampling member (32) so as to acquire the temperature of the battery cell (10).
Resumen de: WO2026051500A1
The present application discloses an electrochemical apparatus and an electrical device. The electrochemical apparatus comprises an electrode assembly and a first discharge controller, the electrode assembly comprising a plurality of negative electrode sheets. The plurality of negative electrode sheets comprise at least one first negative electrode sheet and at least one second negative electrode sheet. Each first negative electrode sheet comprises a first negative electrode active substance layer, and the mass percentage of the element silicon in the first negative electrode active substance layer is N1, where N1≥0. Each second negative electrode sheet comprises a second negative electrode active substance layer, and the mass percentage of the element silicon in the second negative electrode active substance layer is N2, where N2>N1. A second negative tab is electrically connected to the first discharge controller. The first discharge controller is preset to have a first cut-off voltage. The first discharge controller is configured to disconnect an electrical connection between the second negative tab and an external load when the discharge voltage of the electrode assembly is equal to or less than the first cut-off voltage. The electrochemical apparatus is beneficial for improving discharge capacity.
Resumen de: WO2026051506A1
Provided are a secondary battery and an electric device. By reasonably designing the composition of an electrolyte and a positive electrode material of a secondary battery, the secondary battery satisfies formula I, wherein N is the molar ratio of lithium salts LiPO2F2 and LiPF6 in the electrolyte, and N = 0.01-11; W1 is the weight ratio of cyclic carbonate to chain carbonate; W2 is the weight percentage of element A in a positive electrode active material; and C is the weight percentage of a sulfur-containing additive in the electrolyte. Keeping formula II within a suitable range can ensure excellent kinetic performance and low impedance in a lithium-ion battery, so that the migration of lithium ions in the battery maintains a good state, and the secondary battery can maintain good cycle performance at a high voltage.
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: 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.
Resumen de: US20260072087A1
Discussed is a state prediction apparatus that may include a data managing unit configured to extract first battery data including battery data obtained for a first predetermined time after completion of charging of a battery and second battery data including battery data obtained for a second predetermined time after entering of discharging of the battery and a controller configured to obtain first state data for predicting a state of the battery by applying the first battery data to a first deep learning model, obtain second state data for predicting the state of the battery by applying the second battery data to a second deep learning model, and predict the state of the battery based on the first state data and the second state data.
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: WO2026054388A1
The present invention relates to an all-solid-state secondary battery and a method for manufacturing an all-solid-state secondary battery. The all-solid-state secondary battery comprises two or more types of unit cells, each unit cell including a positive electrode, a negative electrode, and a solid electrolyte. The positive electrode and the negative electrode included in one unit cell include one type of positive electrode active material and one type of negative electrode active material, respectively, and the two or more types of unit cells differ from one another in at least one of the positive electrode, the negative electrode, and the solid electrolyte.
Resumen de: WO2026054384A1
A separator for an electrochemical device of the present invention comprises: a porous polymer substrate; and a coating layer disposed on at least one surface of the porous polymer substrate and including inorganic particles, wherein the porous polymer substrate has a porosity of about 50-65 vol%, the porous polymer substrate includes a polymer having a melt index of about 0.0001-0.01 g/10 min, and the coating layer has a porosity of about 40-70 vol%.
Resumen de: WO2026054387A1
Provided is a cable-type secondary battery comprising: a separator having a corrugated tube structure; a first electrode extending in the separator having the tube structure; and a second electrode extending along the first electrode while surrounding the separator having the tube structure. The cable-type secondary battery of the present invention is simple to manufacture and has excellent formability into a desired form.
Resumen de: WO2026054374A1
A battery diagnosis device according to an embodiment disclosed in the present document may comprise: an interface for acquiring a voltage value measured for one or more battery cells during a designated time interval, and acquiring an external temperature of the battery cells; and a controller for calculating a difference between voltage values at two time points included in the designated time interval, selecting a discharge threshold value corresponding to the external temperature and a target time point among the two time points, and diagnosing a state of the battery cells by comparing the difference with the discharge threshold value.
Resumen de: WO2026054376A1
Disclosed are a cartridge for mounting a battery cell, and an air cooling battery system assembly comprising same. The cartridge may comprise a frame and a flow rate restriction member. The frame may be provided with a flow path which extends with a first flow cross-sectional area. The flow rate restriction member may be disposed in the flow path. The flow rate restriction member can reduce the first flow cross-sectional area to a second flow cross-sectional area that is less than the first flow cross-sectional area.
Resumen de: WO2026054267A1
A foreign substance sensing device according to one embodiment of the present invention comprises: a pipe along which a fluid passes; electrodes disposed to surround the pipe; and a foreign substance detection sensor that senses, by means of the electrodes, a change in capacitance caused by foreign substances in the fluid passing along the pipe. As the electrodes, a positive electrode and a negative electrode may be alternately disposed along the circumference of the pipe.
Resumen de: WO2026051486A1
A battery device (100), an electric device, and a vehicle (1000). The battery device (100) comprises: battery cells (10); an electrical structure (50); a case (20), wherein the case (20) is internally provided with a first accommodating cavity (201) and a second accommodating cavity (202), and at least part of the second accommodating cavity (202) is located above the first accommodating cavity (201) in the direction of gravity; and a one-way valve (30) provided on the case (20), wherein one end of the one-way valve (30) faces the first accommodating cavity (201), the other end of the one-way valve (30) faces the second accommodating cavity (202), and the one-way valve (30) is configured to allow a fluid in the second accommodating cavity (202) to enter the first accommodating cavity (201). The fluid in the second accommodating cavity (202) is discharged to the first accommodating cavity (201) by means of the one-way valve (30), thereby reducing damage to the electrical structure (50) caused by the fluid leaked from a liquid-cooled structure, and reducing damage to the electrical structure (50) caused by high-temperature and high-pressure fumes and gases generated by thermal runaway of the battery cells (10).
Resumen de: WO2026051484A1
The present application applies to the technical field of power battery devices. Provided are a battery device (100), an electric device (1000), and a vehicle. The battery device comprises: battery cells (10); an electrical structure (40); a case (20), wherein a first accommodating cavity (201) and a second accommodating cavity (202) are provided inside the case; and a one-way valve (30) connected to the case, wherein one end of the one-way valve faces the second accommodating cavity, and the other end of the one-way valve faces the space outside the case; the one-way valve is configured to allow fluid in the second accommodating cavity to be discharged to the space outside the case, and the one-way valve is also used to prevent substances in the space outside the case from entering the second accommodating cavity. In the battery device provided in the embodiments of the present application, the provision of the one-way valve enables fluid in the second accommodating cavity to be directly discharged to the outside of the case; in addition, the one-way valve can also prevent impurities outside the case from entering the second accommodating cavity, thereby reducing damage to the electrical structure caused by external impurities.
Resumen de: WO2026051476A1
Provided in the present application are a positive electrode active material, and a preparation method therefor and the use thereof. The positive electrode active material comprises an LiMnxFe1-xPO4 inner core and a carbon coating layer covering at least part of the surface of the inner core, wherein 0≤x<1. The compaction density of the positive electrode active material is not lower than 2.28 g/cm3; and the impedance of the positive electrode active material is not higher than 1,500 Ω. The compaction density and impedance of the positive electrode active material provided in the present application are defined, such that the positive electrode active material has a relatively high compaction density and good rate capability; and when the positive electrode active material is applied to a lithium-ion battery, the specific capacity, energy density and rate capability of the lithium-ion battery can be improved.
Resumen de: US20260072099A1
A secondary battery testing device including: a support bulkhead configured to contact one side surface of a battery cell for an internal short-circuit test; a penetration bulkhead opposite to the support bulkhead and configured to contact an opposite side surface of the battery cell, the penetration bulkhead having an access opening extending therethrough toward the support bulkhead; a bulkhead connector connecting the support bulkhead and the penetration bulkhead to each other and maintaining a gap between the support bulkhead and the penetration bulkhead; an alignment mechanism mounted on the penetration bulkhead and having a nail guide corresponding to the access opening and having a guide passage; and a nail configured to penetrate the battery cell through the guide passage to cause an electrical short-circuit of the battery cell.
Resumen de: US20260071831A1
A cooling floor member (100) is a cooling floor member (100) for cooling a battery cell, including a metal underfloor material (101), a flat plate-like metal floorboard (102) which is arranged face to the metal underfloor material (101), and which has a surface opposite to the metal underfloor material (101) that comes into contact with the battery cell, a partition member (105) inserted between the metal underfloor material (101) and the flat plate-like metal floorboard (102) without being joined thereto, and a joint (130) in which the outer peripheral edge of the metal underfloor material (101) and the outer peripheral edge of the flat plate-like metal floorboard (102) are directly and continuously joined, wherein a region surrounded by the metal underfloor material (101), the flat plate-like metal floorboard (102), and the partition member (105) is a cooling liquid flow path (104) through which a cooling liquid flows.
Nº publicación: US20260071815A1 12/03/2026
Solicitante:
SK ON CO LTD [KR]
SK ON CO., LTD
Resumen de: US20260071815A1
Facility and method for drying electrode are disclosed. The electrode drying facility according to an embodiment of this disclosure is transporting and drying an electrode extended in the longitudinal direction and comprises a heating roller unit including a heating roller that forms a roller shape and transports the electrode and heats the electrode, a heater unit heating the electrode drawn from the heating roller unit, an electrode cooling equipment cooling the electrode drawn from the heater unit, wherein the heater unit irradiates a laser beam containing infrared rays to the electrode.
BOPI
Sede Electrónica
