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1601
resultados
Última actualización
20/03/2026 [07:15:00]
Resultados 325 a 350 de 1601
Resumen de: US20260074306A1
A battery management system includes: a storage unit that stores first hopping history data for a plurality of channels associated with a first battery management module among a plurality of battery management modules, a model generation unit that generates a first probability distribution model associated with the first battery management module based on the first hopping history data, and a communication unit that allocates a first channel among the plurality of channels to the first battery management module using a frequency hopping method, sets first communication properties associated with the first channel based on the first probability distribution model, and performs wireless communication with the first battery management module through the first channel using the first communication properties.
Resumen de: US20260074308A1
A battery cell replacement detection apparatus includes a memory, and a processor configured to obtain cell data related to charging of a battery from a battery management system (BMS), to compare the cell data with data stored in the memory, and to determine whether a battery cell has been replaced.
Resumen de: US20260074309A1
A hydrogen sulfide detection device includes a wire that electrically connects a first node and a second node, and a monitoring circuit that monitors a voltage between the first node and the second node. The wire includes a plurality of metal exposed portions in which a metal that reacts with the hydrogen sulfide to corrode is exposed.
Resumen de: US20260074307A1
A battery ECU calculates a gas generation amount generated in a case, and calculates a gas permeation amount corresponding to an amount of leakage of the gas out of the case. The battery ECU calculates an internal gas amount that is a gas amount inside the battery, by subtracting the gas permeation amount from the gas generation amount. Further, the battery ECU calculates an electrolyte solution permeation amount corresponding to an amount of leakage of an electrolyte solution out of the case, and calculates an internal void volume that is a void volume inside the battery, by adding the electrolyte solution permeation amount and an initial void volume. Then, the battery ECU calculates a battery internal pressure that is a pressure in the case, based on the internal gas amount and the internal void volume.
Resumen de: WO2026051252A1
Provided in the present application are a precursor having a porous isolation layer, a positive electrode material, and the preparation therefor and the use thereof. The precursor comprises an inner core, a porous isolation layer covering the inner core, and an outer shell covering the porous isolation layer. The porosity of the porous isolation layer is higher than the porosities of the inner core and the outer shell. The precursor provided by the present application has the porous isolation layer, which blocks the propagation of micro-cracks and provides more space for release of stress built-up by volume expansion/contraction during deep charge and discharge processes, thereby ensuring that a positive electrode material prepared by the precursor has a stable structure and shape during cycle processes, and improving the cycle performance of batteries containing the positive electrode material prepared from the precursor.
Resumen de: WO2026051291A1
A secondary battery and a manufacturing method therefor, an electrode sheet, and an electric device (6). The secondary battery comprises an electrode sheet; the electrode sheet comprises a current collector and an electrode active layer disposed on at least one surface of the current collector; and the electrode active layer comprises an electrode active material and a polymer binder. The polymer binder comprises a core and a shell covering at least part of the surface of the core; at least one of the shell and the core comprises a polymer; both the shell and the core have hole structures; and the number of holes in the shell is greater than that of holes in the core.
Resumen de: WO2026051235A1
Disclosed in the present application is a battery liquid cooling system, comprising: a battery module formed by stacking a plurality of battery cells; a battery casing, an accommodation recess being provided in the battery casing, and the battery module being assembled in the accommodation recess; flow channel plates, located between at least two adjacent battery cells, liquid cooling flow channels being provided in each flow channel plate, and the liquid cooling flow channels being spaced apart from the battery cells, or each flow channel plate being attached to a side surface of a battery cell on at least one side to form liquid cooling flow channels; an immersion liquid inlet, a cooling liquid being introduced into the accommodation recess through the immersion liquid inlet; and an immersion liquid outlet, the immersion liquid outlet being in communication with the accommodation recess, and the liquid cooling flow channels being in communication with the accommodation recess.
Resumen de: US20260074216A1
Disclosed are positive electrodes, all-solid-state batteries, and fabrication methods thereof. The positive electrode includes a positive electrode current collector, and a positive electrode active material layer on the positive electrode current collector. The positive electrode active material layer includes a sulfide-based solid electrolyte, a binder that includes a first non-aqueous binder and a second non-aqueous binder, and a positive electrode active material. The first non-aqueous binder includes a fluorine-based binder. The second non-aqueous binder includes an acrylate-based binder.
Resumen de: US20260074200A1
A coated active material (100) of the present disclosure includes: a positive electrode active material (11); lithium hydrogen carbonate present on a surface of the positive electrode active material (11); and a coating layer (12) coating at least a portion of the surface of the positive electrode active material (11). The coating layer (12) includes a lithium-containing fluoride. When a mass of the lithium hydrogen carbonate present on the surface of the positive electrode active material (11) is measured by thermogravimetry-mass spectrometry, a proportion R1 of the mass of the lithium hydrogen carbonate in a mass of the positive electrode active material (11) is 130 ppm or more and 580 ppm or less.
Resumen de: US20260074202A1
Described herein is a molten-salt Na—O2 battery which includes a first electrode including liquid Na in direct contact with a solid-state electrolyte; and a composite second electrode in contact with the solid-state electrolyte, wherein the composite second electrode includes: particles having an oxygen-active metal surface; and a molten salt comprising redox-active ions; and O2 in contact with the composite second electrode; where the solid-state electrolyte is disposed between the first electrode and the composite second electrode. Methods of making the battery and methods of producing electricity with the battery are also described.
Resumen de: US20260074226A1
Disclosed are electrodes, rechargeable lithium batteries, and fabrication methods thereof. The electrode includes a current collector, and an electrode active material layer on the current collector. The electrode active material layer includes a groove. The groove includes a filler including a first binder. The first binder in the filler is present in an amount that is equal to or greater than about 90 wt %.
Resumen de: US20260074218A1
A positive electrode active material for a lithium-ion secondary battery, containing, as a main component, a lithium transition metal composite oxide that is in a form of a particle having an outer layer on a surface thereof, and is represented by:where 0.95≤x≤1.05, 0.78≤y≤0.95, 0.01≤z≤0.15, and 0.01≤w≤0.15, and x+y+z+w=2,a ratio between a ratio of the number of atoms of Fe to that of Ni in the outer layer and a ratio of the number of atoms of Fe to that of Ni in the entire particle is 0.7 to 1.7, inclusive anda ratio (I1/I2) between integrated intensities (I1) and (I2) of diffraction peaks of a 003 plane and a 104 plane, respectively, in a space group R-3m is 1.15 to 1.35, inclusive.
Resumen de: US20260074346A1
The invention relates to an electrical cell module comprising: an opposing pair of module end plates spaced apart along a longitudinal axis; a first cell stack; and a second cell stack. Each cell stack comprises: a series of cells stacked along the longitudinal axis, and a pair of stack end plates at opposing ends and configured to be fixed to one another in an assembled position to apply to the series of cells a compressive force along the longitudinal axis, and define a stack length. The compressive forces are within a predetermined operable range. Each opposing pair of module end plates is fixedly engaged, in a use position, with one corresponding stack end plate of each cell stack so the module end plates are spaced apart from one another along the longitudinal axis by a predetermined distance, and the first stack length is different to the second stack length.
Resumen de: US20260074396A1
A pole, a pole component, and a battery are provided. The pole includes a first pole portion and a second pole portion. The first pole portion includes a first end and a second end that are in an axial direction of the first pole portion. An outer periphery of the first pole portion is convexly provided with a first flange, and the first flange is spaced apart from the second end in the axial direction. The first end is provided in a mating groove and engages with the second pole portion. An outer periphery of the second pole portion is convexly provided with a second flange. The first pole portion is spaced apart from the second flange. The second flange is provided with a first connecting groove, and the first flange is at least partially located in the first connecting groove and engages with the second flange.
Resumen de: US20260074390A1
A conductive structure, a cover plate assembly, and a battery cell are provided. The conductive structure includes a metal post and a metal layer. The metal post includes a first end and a second end opposite to each other. The first end is formed with a first step portion. The metal layer is bonded to a surface of the metal post. The metal layer wraps the first end and extends toward the second end. The metal layer is formed with a second step portion matching the first step portion. The second step portion is configured to be welded to a current collector.
Resumen de: US20260074548A1
A method of determining a battery charging state includes measuring a voltage of a battery by a voltage measuring unit, calculating a compensation voltage for compensating for a voltage drop caused by a second resistance of a connection module disposed between the battery and the voltage measuring unit, and charging the battery, based on a total voltage defined as a sum of the compensation voltage and a cut-off voltage that is determined by a first resistance of the battery.
Resumen de: US20260074341A1
A battery for a motor vehicle has a plurality of battery cells and a battery housing that encloses a housing interior in which the battery cells are received. The battery housing has a perforated sheet on which the battery cells are placed. The perforated sheet has, for each battery cell, an allocated degassing opening on which the allocated battery cell is placed and via which gas exiting the allocated battery cell can be guided out of the housing interior.
Resumen de: US20260074302A1
Embodiments described herein relate to electrochemical cells with dendrite prevention mechanisms. In some aspects, an electrochemical cell can include an anode disposed on an anode current collector, a cathode disposed on a cathode current collector, the cathode having a first thickness at a proximal end of the cathode and a second thickness at a distal end of the cathode, the second thickness greater than the first thickness, a first separator disposed on the anode, a second separator disposed on the cathode, an interlayer disposed between the first separator and the second separator, the interlayer including electroactive material and having a proximal end and a distal end, and a power source electrically connected to the proximal end of the cathode and the proximal end of the interlayer, the power source configured to maintain a voltage difference between the cathode and the interlayer below a threshold value.
Resumen de: US20260074303A1
A battery module may include battery cells, two sensors connected to the battery cells and configured to generate voltage data, an analog front-end integrated circuit (AFE IC) connected to the sensors and configured to generate a (1-1)-th and (1-2)-th control signal based on the voltage data, a (1-1)-th switching element connected to a first battery cell and the AFE IC and configured to perform an on/off operation based on the (1-1)-th control signal, a (1-2)-th switching element connected to a second battery cell and the AFE IC and configured to perform an on/off operation based on the (1-2)-th control signal, a microcontroller unit (MCU) connected to the AFE IC, and a cell balancing circuit connected to the (1-1)-th switching element and the (1-2)-th switching element and configured to perform balancing on the battery cells according to the on/off operations of the (1-1)-th switching element and the (1-2)-th switching element.
Resumen de: US20260074304A1
A battery communication management device, including a rack battery management part including a microcontroller and an interface converter, and a plurality of module battery management parts in serial connection with the rack battery management part and managed by the rack battery management part, wherein each of the plurality of module battery management parts manages a battery module, each of the plurality of module battery management parts includes an analog front end, and the microcontroller determines a type of communication failure between the rack battery management part and the plurality of module battery management parts.
Resumen de: US20260074535A1
According to an embodiment, a battery module includes a cell group in which a first cell and a second cell are connected in parallel, a first circuit breaker mechanism configured to disconnect connection between the first cell and the second cell when a temperature of the first cell is equal to or higher than a first temperature, and a connection mechanism configured to connect the first cell to a discharge circuit when the temperature of the first cell is equal to or higher than a second temperature higher than the first temperature.
Resumen de: WO2026051654A1
The present application provides a method for determining the state of health of a battery, a method for determining a battery charging and discharging strategy, and an apparatus. A specific implementation of the method for determining the state of health of a battery comprises: determining respective predicted voltages of a battery to be processed, at prediction moments and under multiple battery capacities; on the basis of each of the predicted voltages and a measured voltage of said battery at each of the prediction moments, obtaining multiple voltage residuals; determining a target voltage residual that satisfies a voltage residual requirement from among the multiple voltage residuals; on the basis of the multiple battery capacities, determining a first target battery capacity corresponding to the target voltage residual; and on the basis of the first target battery capacity and a rated capacity of said battery, determining the state of health of said battery. The method can conveniently and accurately determine the state of health of batteries in a wide range of application scenarios.
Resumen de: WO2026051459A1
A power battery temperature control system, comprising: a first temperature sensor, a second temperature sensor, a thermal management mechanism, and a controller. The first temperature sensor is disposed on a power battery; the second temperature sensor is disposed on a first water inlet passage; the thermal management mechanism is connected to an engine cooling circuit by means of a second water inlet passage and the first water inlet passage; and the controller is used for controlling, on the basis of temperatures fed back by the first temperature sensor and the second temperature sensor, the thermal management mechanism to connect or disconnect from the engine cooling circuit, or controlling a cooling module to start or stop. When the temperature of the power battery is lower than a threshold, cooling water of an engine is used to heat the power battery. However, the temperature of the cooling water is too high during the operation of the engine, such that the temperature of the cooling water of the engine needs to be lowered by means of the cooling module, and then the cooling water is supplied to the first water inlet passage to heat the power battery to a normal working temperature.
Resumen de: WO2026051454A1
The present application is applicable to the technical field of batteries (100), and provides a battery cell (10), a battery (100), and an electric device. The electric device comprises the battery (100), the battery (100) comprises the battery cell (10), and the battery cell (10) comprises a casing (2), an electrode assembly (1), and electrode terminals (3). The casing (2) is provided with lead-out holes (201); the electrode assembly (1) is provided in the casing (2); each electrode terminal (3) comprises a terminal body (31) and a first boss (32), and the terminal body (31) covers the corresponding lead-out hole (201); in the axial direction (Z) of the lead-out holes (201), each first boss (32) is provided at the end of the terminal body (31) close to the electrode assembly (1); and the first bosses (32) pass through the lead-out holes (201) and are connected to the electrode assembly (1). The electrode terminals (3) each comprise the first boss (32) provided in the corresponding lead-out hole (201), so that when the size of the casing (2) is fixed, the electrode terminals (3) can extend into the casing (2). In this way, the height of the portions of the electrode terminals (3) located outside the casing (2) can be reduced, thereby reducing the size of the battery cell (10), thus reducing the space occupied by the battery cell (10) in a case (20), improving the space utilization rate of the case (20), and improving the energy density of the battery (100).
Nº publicación: US20260072099A1 12/03/2026
Solicitante:
SAMSUNG SDI CO LTD [KR]
SAMSUNG SDI CO., LTD
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.
BOPI
Sede Electrónica
