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1339
results.
Updated on
02/05/2025 [07:13:00]
Results 325 to 350 of 1339
Absstract of: US2025132470A1
A battery cell stack assembly for a prismatic battery includes a plurality of monocells and two current collector bracket assemblies. Each monocell includes an anode electrode sheet having an outer perimeter and an anode cell tab and a cathode electrode sheet having a cathode cell tab. One of the current collector bracket assemblies electrically connect each of the anode cell tabs with one another and a remaining current collector bracket assembly electrically connects each of the cathode cell tabs with one another, and each current collect bracket assembly includes at least one arm that is positioned to electrically connect either two or more of the anode cell tabs or two or more of the cathode cell tabs to one another.
Absstract of: US2025132457A1
A battery thermal management system including an air induction device for drawing air to a battery pack, a controller, a valve that opens to permit the air to enter the battery pack, and a temperature sensor for generating signals indicative of a temperature within the battery pack. Upon receipt of a signal from the temperature sensor that is indicative of the temperature within the housing being above a predetermined threshold, the controller is configured to instruct the air induction device to begin drawing the air, and instruct the valve to open to permit the air to enter the battery pack and cool each of the battery cells and dilute the battery gases generated by the plurality of battery cells.
Absstract of: US2025132406A1
A system for calculating the maximum power limit of a battery pack for an electric vehicle includes one or more controllers in electronic communication with the battery pack. A plurality of battery open circuit voltage look-up tables and a plurality of direct current internal resistance (DCIR) look-up tables are stored in memory of the one or more controllers.
Absstract of: US2025132585A1
An power module includes a battery cell and a circuit board electrically connected to the battery cell. A number of the battery cell is one. The battery cell is configured to feed a first voltage to the circuit board. The battery cell includes a housing and an electrode assembly disposed in the housing. The circuit board includes a buck-boost circuit and at least two output terminals. The buck-boost circuit is configured to receive the first voltage and step up or step down the first voltage, so as to output at least two different second voltages to the at least two output terminals respectively. Each of the output terminals is configured to feed one of the second voltages to a drive circuit in a load electrically connected to the output terminal.
Absstract of: WO2025081558A1
The present invention relates to the technical field of energy storage batteries. Disclosed are a lithium iron phosphate energy storage battery and a positive electrode preparation method. The method comprises: adding a lithium iron phosphate material, a conductive agent, a binder, a power adjuvant, and a lubricant into a high-speed shear mixer for dry-state mixing; adding the mixed material into a double-shaft hot roller to be extruded into a film, wherein the thickness of the film is controlled at 80-300 um, the temperature of the double-shaft hot roller is controlled at 120-250°C, and the pressure is controlled at 10-25 T; attaching the film to an 8-20 um aluminum foil having undergone adhesive treatment on a surface, wherein the adhesive aluminum foil adhesive layer is 1-5 um, and the adhesive layer contains 70 wt% of conductive carbon and 30% of polymer glue; and carrying out hot pressing on the complex at 70-120°C to form a lithium iron phosphate positive electrode. The lithium iron phosphate energy storage battery comprises an aluminum case, a separator, an electrolyte, a positive electrode, and a negative electrode. According to the lithium iron phosphate battery positive electrode prepared in the present invention, the whole manufacturing process reduces energy consumption, protects the environment, and reduces the manufacturing cost of the whole battery cell. The present invention improves the high-rate characteristic and the cycle stability of the lithium iron ph
Absstract of: WO2025081344A1
A ferrimanganic pyrophosphate, which is of a laminar structure. A specific preparation process comprises: performing a coprecipitation reaction on a phosphorus source and a mixed metal salt solution according to a preset molar ratio of elements in ammonium manganese iron phosphate to prepare the ammonium manganese iron phosphate, and further calcining same to obtain the ferrimanganic pyrophosphate; and further preparing lithium manganese iron phosphate by taking the ferrimanganic pyrophosphate as a raw material. Also provided is a battery comprising the lithium manganese iron phosphate as a positive electrode material.
Absstract of: WO2025081556A1
A genetic algorithm optimization-based fuzzy PID control method and apparatus, and a device. The method comprises: S1, acquiring a preset standard electrode plate quality, a measured electrode plate quality and a system default ray intensity, acquiring an ambient temperature parameter, retrieving a monitoring index, and monitoring the stability of a surface density measurement system according to the monitoring index; S2, on the basis of a preset system parameter of the surface density measurement system, setting a data sampling interval; S3, on the basis of the data sampling interval, continuously sampling a number N of pieces of data using a median average filtering algorithm, removing extreme values, calculating the arithmetic mean value of the N-2 pieces of data, and eliminating sampling value deviation of the arithmetic mean value, to obtain surface density sampling data; S4, performing fuzzification processing on the surface density sampling data, determining a fuzzy rule, and performing optimization in real time according to the fuzzy rule and by means of fuzzy reasoning, to obtain applicable PID parameters; S5, on the basis of the applicable PID parameters, using a genetic algorithm to control a servo motor of the surface density measurement system. Thus, the technical problems of parameter tuning being difficult and the robustness of closed-loop control being low are solved.
Absstract of: WO2025084254A1
This nonaqueous electrolyte secondary battery includes an electrode group, a nonaqueous electrolyte, and an exterior body that houses the electrode group and the nonaqueous electrolyte. The electrode group includes a positive electrode, a negative electrode, and a separator interposed between the positive electrode and the negative electrode. The nonaqueous electrolyte includes a polymer material having a melting point or a thermal decomposition temperature of 200°C-500°C inclusive.
Absstract of: WO2025084257A1
Provided is a cell balance adjustment method for evening a charge state of a cell 2 in a secondary battery 3. All of the cells 2 constituting the secondary battery 3 are divided into a plurality of processing target groups 4 in a state in which a part of the cell 2 is included in an overlapping manner in the processing target groups 4 adjacent to each other. The method comprises: a capacitor charging step of charging a capacitor 8 by connecting the capacitor 8 to both end portions of the processing target group 4; and a capacitor discharge step of charging a processing target cell by connecting a predetermined processing target cell included in the processing target group 4 and the capacitor 8 and discharging the charge.
Absstract of: WO2025084225A1
Provided is a heat-insulating elastic member that has a single-layer structure, the member exhibiting excellent thermal insulation and elasticity, including a predetermined amount of thermal insulation material and elastic material, and manufacturable under high productivity. The heat-insulating elastic member is characterized by: having a single-layer structure; comprising 15-75 mass% of heat-resistant particles, and a total of 15-75 mass% of one or more kinds of organic elastic particles selected from rubber particles and resin particles; and having a porosity of 70-95% and a bulk density of 80-400 kg/m3. Alternatively, the heat-insulating elastic member is characterized by: having a single-layer structure; d comprising 15-75 mass% of heat-resistant particles, and a total of 15-75 mass% of one or more kinds of organic elastic particles selected from rubber particles and resin particles; being composed of an aggregate obtained through the aggregation of a plurality of heat-resistant secondary particles in which organic elastic particles are attached to the surfaces of the heat-resistant particles; and having voids formed between the plurality of heat-resistant secondary particles.
Absstract of: WO2025084898A1
A battery pack according to an embodiment of the present invention comprises: a pack frame to which multiple battery modules are mounted; at least one venting unit positioned on at least one side surface of the pack frame; and at least one sound extinguishing unit positioned on the upper portion of the pack frame, wherein the sound extinguishing unit generates a low-frequency wave inside the pack frame toward the venting unit.
Absstract of: WO2025084889A1
According to exemplary embodiments, a method for manufacturing a secondary battery is provided. The method comprises performing a first-order approximation of an OCV with respect to a square root of time on the basis of a measured value of the OCV, and evaluating the quality of a battery cell on the basis of the first-order approximation.
Absstract of: WO2025081751A1
A silicon-carbon composite material and a preparation method therefor, a secondary battery, and an electric device. The silicon-carbon composite material comprises a carbon matrix having a pore structure and a silicon-based material distributed in the pore structure. A button cell is used to charge and discharge the silicon-carbon composite material; a curve graph of a relationship between a differential value dQ/dV obtained by differentiating the charging and discharging capacity Q by using the voltage V of a charging and discharging curve of the button cell, and the voltage V is drawn; the maximum value of the differential value dQ/dV between 0.26-0.35 V is recorded as Va; the maximum value of the differential value dQ/dV between 0.42-0.52 V is recorded as VB; and the silicon-carbon composite material satisfies: VA/VB≥1.40. The cycle performance and the initial charging and discharging efficiency of the silicon-carbon composite material can be significantly improved.
Absstract of: WO2025081754A1
The present application is applicable to the technical field of batteries (100), and provides a battery cell (10), a battery (100), an electrical apparatus, a combination apparatus (2100) and method, and a processing device (2000). The processing device (2000) is used for processing of batteries (100), and comprises the combination apparatus (2100). The combination method comprises: driving the combination apparatus (2100) to cause a portion of a separator (113) to be combined with and fixed to a first electrode sheet (111) and/or a second electrode sheet (112). The electrical apparatus comprises the battery (100); the battery (100) comprises the battery cell (10); the battery cell (10) comprises an electrode assembly (11); the electrode assembly (11) comprises first electrode sheets (111), second electrode sheets (112) and separators (113); the first electrode sheets (111) and the second electrode sheets (112) are alternately stacked or alternately stacked and wound; at least a portion of each separator (113) is arranged between a first electrode sheet (111) and a second electrode sheet (112), and a portion of the separator (113) is combined with and fixed to the first electrode sheet (111) and/or the second electrode sheet (112). In this way, only a portion of each separator (113) is used for the combination operation, and the remaining portion of the separator (113) is not used for the combination operation, ameliorating the problem of poor overall air permeability of the
Absstract of: WO2025081797A1
A battery cell, a battery, and an electric device. A battery cell (61) comprises: an electrode assembly (10), comprising a main body (11) and a tab (12), wherein the tab (12) is led out from at least one end of the main body (11) in a first direction (dr1); a casing (20) having a chamber for accommodating the electrode assembly (10), wherein the casing (20) comprises a shell (21) and a top cover piece (22), at least one end of the shell (21) in the first direction (dr1) is provided with an opening portion (21a), the top cover piece (22) covers the opening portion (21a), and the tab (12) is electrically connected to the top cover piece (22); and an insulating portion (30), which is at least partially arranged at the opening portion (21a) and comprises a first insulating part (31) located between the opening portion (21a) and the top cover piece (22).
Absstract of: US2025132578A1
A device for connection detection is provided. The device includes: a power connecting end, in electrical connection with a power module; a load connecting end, in electrical connection with an external load; a switch circuit, electrically connected between the power connecting end and the load connecting end; a voltage control circuit, in electrical connection with the load connecting end and configured to output a voltage through the load connecting end; and a voltage detecting circuit, in electrical connection with the load connecting end and configured to measure voltage of the load connecting end and output a voltage detection signal, the voltage detection signal being configured to control an ON/OFF state of the switch circuit. A jump starter apparatus including the device for connection detection and a battery clip including the device for connection detection are further provided.
Absstract of: US2025132472A1
Provided is a battery insulator, a top cover assembly, and a battery. The battery insulator includes a first member and a second member. The first member includes a first main body, an end of the first main body facing towards the second member is provided with two baffles at intervals. The second member includes a second main body, and an end of the second main body facing towards the first main body is provided with a mounting plate. The mounting plate is provided with a first pole hole in a penetrating manner, the first pole hole is configured to allow a pole of a battery to pass through, the mounting plate is movably disposed between the two baffles, the mounting plate and the two baffles define an accommodation groove, and the accommodation groove is configured to accommodate a tab connected to the cell.
Absstract of: US2025132475A1
A method for manufacturing a power storage module includes: a placing step of placing an electrode laminate on a restraint member so that a laminating direction runs along a vertical direction; a connecting step of connecting a first connection part so that a connecting portion of a second connection part with respect to a connected part is positioned on an upper side in the vertical direction than an opening; a supplying step of connecting a distal end part of a supply pipe for an electrolytic solution to the second connection part, and supplying the electrolytic solution to a space; and a conveying step of removing a recessed part of the supply pipe from the second connection part, and conveying a cell stack placed on the restraint member in a state in which the opening is connected to the first connection part.
Absstract of: US2025132577A1
Various control systems and methods are discussed including a method of controlling a battery pack id disclosed, the method optionally including: providing a plurality of battery strings each having an identical construction, each battery string including a plurality of battery cells connected in series, wherein each of the plurality of battery strings is connected to a respective pair of contactors; providing a sensor configured to measure at least one of a voltage and a current of each of the plurality of battery strings, wherein respective sensor is electrically connected to an electronic controller; and selectively controlling individually ones of the plurality of battery strings to meet a requirement with the electronic controller based upon measurement from each sensor.
Absstract of: US2025132425A1
A steel sheet for a battery case includes about 0.02 wt % to about 0.08 wt % carbon (C); about 0.01 wt % to about 0.1 wt % niobium (Nb); and the balance of iron (Fe). Further aspects provide for a battery case manufactured from the steel sheet for a battery case and provided with an opening. Further aspects provide for a cylindrical secondary battery comprising a cylindrical case manufactured from the steel sheet for a battery case, a cap assembly sealing the cylindrical case, and an electrode assembly disposed inside the cylindrical case.
Absstract of: WO2025081243A1
Disclosed herein is an electrochemical cell comprising a porous tubular support adapted to conduct electricity, a bore of the support defining an inner channel configured to receive a flow of a first fluid therethrough; a tubular outer electrode; an electrolyte comprising a porous membrane, the porous membrane separating the porous tubular support and the tubular outer electrode; current collectors for enabling an electrical current to flow through the cell; and a housing for the electrochemical cell, a space between the housing and the tubular outer electrode defining an outer channel configured to receive a flow of a second fluid therethrough.
Absstract of: WO2025081343A1
Provided in the present disclosure is a recovery method for waste battery powders. The recovery method comprises the following steps: (1) roasting waste battery powders, and extracting lithium from same by means of water leaching, so as to obtain a lithium-rich solution and lithium extraction residue; (2) screening the lithium extraction residue, so as to separately obtain a mixed metal material and a flotation material, mixing the flotation material, crystalline flake graphite and a solvent, adjusting the mass concentration thereof, and then adding a collecting agent and a foaming agent thereto, so as to obtain a slurry; (3) subjecting the slurry to a flotation treatment, screening same to obtain flotation foam and a positive electrode material, screening the flotation foam to obtain high-purity graphite, and recovering the crystalline flake graphite; and (4) repairing the high-purity graphite to obtain battery-grade graphite, and subjecting the positive electrode material to wet recovery, so as to obtain a battery-grade metal material. In the present disclosure, crystalline flake graphite is used as a carrier, and rapid and effective separation of graphite and positive electrode powders are achieved; and the crystalline flake graphite can be recovered after the recovery, thereby achieving the recycling of the carrier.
Absstract of: US2025132453A1
A gas venting device, and a battery module and a battery pack including same has a gradually reducing cross-sectional area of a flow path in a gas discharge direction so that a greater flow rate of gas can be discharged even when a venting disc having the same area is used.
Absstract of: US2025132404A1
Disclosed is an apparatus for producing a battery component associated with a battery passport: a collector configured to collect battery data associated with the component of the battery, wherein the component of the battery comprises a physical identifier; an assignor configured to assign the physical identifier to a decentral identifier for generating the battery passport associated with the produced component of the battery, a battery passport generator configured to generate the battery passport by receiving a request to provide a decentral identifier associated with battery data of at least the component of the battery and in response to the request, generating the battery passport including the decentral identifier and data related to battery data of at least the component of the battery.
Nº publicación: WO2025084153A1 24/04/2025
Applicant:
KK TOYOTA JIDOSHOKKI [JP]
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Absstract of: WO2025084153A1
This method for manufacturing an electric power storage module comprises a first inspection step for inspecting a module to be inspected within a chamber. In the first inspection step, the following inspections are performed simultaneously: a first airtightness inspection between a first cell and a first adjacent cell that includes an internal space adjacent to an internal space of the first cell, among a plurality of cells to be inspected; and a second airtightness inspection between the first cell and a second adjacent cell that includes a frame adjacent to a first cell frame, among the plurality of cells to be inspected.
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