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1344
resultados
Última actualización
09/09/2025 [07:15:00]
Resultados 200 a 225 de 1344
Resumen de: US2025276339A1
A coating apparatus includes: a coating die head having a discharge port; an adjustment assembly disposed on the coating die head; and a control assembly connected to the adjustment assembly. The control assembly is configured to detect an actual surface density of coating on an electrode plate and control the adjustment assembly to adjust a flow area of the discharge port based on a difference between the actual surface density and a target surface density.
Resumen de: US2025276338A1
The present disclosure discloses a coating device. The coating device includes a coating roller, a scraping roller, and a blocking assembly. The scraping roller and the coating roller are arranged side by side, and a gap is provided between the scraping roller and the coating roller to allow a slurry to pass through. The blocking assembly is arranged at an outer side of the coating roller and an outer side of the scraping roller. The blocking assembly includes a support and a blocker mounted at the support. The blocker includes a cooperation portion cooperating with the coating roller and an engagement portion cooperating with the scraping roller. A first end of the cooperation portion and a first end of the engagement portion are connected and form an angle portion. The angle portion extends into the gap.
Resumen de: US2025276341A1
A method for coating a glue on a water-cooling plate comprises acquiring a first image and a second image comprising the water-cooling plate; determining a deviation between a placement position and a preset position of the water-cooling plate based on the first image and the second image; regulating a glue coating trajectory based on the deviation between the placement position and the preset position of the water-cooling plate; and coating the glue on the water-cooling plate based on the regulated glue coating trajectory.
Resumen de: US2025278536A1
The present invention relates to a modeling method for a thermal runaway-electrochemical coupling model for a change in state of charge of a lithium-ion battery during charging and discharging, and belongs to the technical field of safety of lithium-ion batteries. The method includes the following steps: S1: establishing a three-dimensional thermal runaway model of the battery under different states of charge; S21: assembling half-cells of battery cathode and anode materials; S22: testing equilibrium potentials and entropy thermal coefficients of a cathode and an anode; S23: acquiring a heat transfer coefficient between a battery surface and an ambient temperature; S24: measuring temperature and voltage change curves of the battery; S25: establishing an electrochemical model plugging electrochemical parameters into the model to obtain simulation results, and comparing the simulation results with real experimental results; and S3: making the temperatures in the electrochemical model to be consistent with an average temperature in the three-dimensional thermal runaway model under different states of charge for coupling, and setting restriction conditions after coupling. The method can achieve coupling of the thermal runaway model for the change in state of charge and electrochemistry, and can explore the thermal runaway phenomenon of batteries more comprehensively.
Resumen de: US2025275658A1
An attachment for a vacuum cleaner includes a head, a brush roll, an electric motor, and an attachment conduit. The head includes a suction opening, a brush roll cavity, and a battery cavity defined therein. The brush roll cavity is in fluid communication with the suction opening. The battery cavity has an elongate shape and a first longitudinal axis. The brush roll is rotatably coupled to the head. A majority of the brush roll is disposed within the brush roll cavity. The brush roll is rotatable about a rotational axis. The electric motor is disposed within the head. The electric motor drives the brush roll. The attachment conduit is in fluid communication with the suction opening. The attachment conduit is coupled to the head and has a second longitudinal axis. Each of the first longitudinal axis and the second longitudinal axis is angled relative to the rotational axis.
Resumen de: US2025277860A1
A method for capacity calculation of a battery module includes: acquire the historical charge and discharge parameters of each battery in the battery module, select a reference battery that meet preset charge and discharge conditions, and obtain remaining batteries in the battery module; obtain relative capacity of each remaining battery relative to the reference battery; determine batteries that meet the preset capacity conditions based on the relative capacities as target capacities; obtain increasable capacity of the battery module based on the target capacities. The calculation of the increasable capacity of the battery module is performed before the battery module is recharged, so that the operation and maintenance personnel can know whether the battery module needs to be recharged and whether the capacity of the battery module after recharging has increased, which optimizes recharge process, improves recharge efficiency, and improves operation and maintenance efficiency.
Resumen de: US2025277869A1
A vehicle includes a system that performs a method for operating the vehicle. A processor obtains an initial voltage fade state of a battery of the vehicle and a model of an initial state of the battery of the vehicle, commences a charging operation of the battery, measure a terminal voltage of the battery while charging, updates the model during the charging operation using the terminal voltage, ends the charging operation, obtains measurements of a cathode voltage after the charging operation has ended, determines a maximum cathode voltage from the measurements, determines an updated voltage fade state of the battery based on the maximum cathode voltage, selects a relation between cathode voltage and lithiation state based on the updated voltage fade state, calculates a state of lithiation of a cathode from the maximum cathode voltage using the selected relation, and operates the vehicle based on the updated voltage fade state.
Resumen de: US2025277870A1
A battery cell inspection system includes a transport unit including a plurality of conveyors arranged in multiple levels in a vertical direction, and configured to transport a tray on which an assembled battery cell is mounted, a cell inspection unit corresponding to the multiple levels of the transport unit, and configured to perform pre-charging and cell defect inspection of the battery cell, and a shuttle configured to move between the cell inspection unit and the transport unit to carry the tray into the cell inspection unit or take the tray from the cell inspection unit.
Resumen de: US2025277863A1
The present application provides a battery SOC evaluation method, an apparatus, a device and a medium. The method includes: acquiring charging-discharging data of a first battery cell pack at different first temperatures and different first rates, where the number of the first battery cell pack is at least one, and the first battery cell pack includes a first battery cell; acquiring first SOCs of the first battery cell pack according to the charging-discharging data, where the charging-discharging data includes first voltages of the first battery cell pack; establishing an association table of the first SOCs with the first temperatures, the first rates and the first voltages; acquiring a second temperature, a second rate and a second voltage of a battery pack, and acquiring a second SOC of each second battery cell in the battery pack by the association table, where the battery pack includes multiple second battery cells.
Resumen de: US2025277866A1
A battery management system for diagnosing the degradation of secondary batteries equipped with a positive electrode including lithium iron phosphate as a positive electrode active material is provided. The battery management system includes a sensing part configured to measure the voltage and open circuit voltage of a secondary battery; a memory part configured to store the open circuit voltage measured by the sensing part; and a control part configured to determine that the secondary battery is degraded if the amount of change in the open circuit voltage due to charge/discharge cycles of the secondary battery, for at least five charge/discharge cycles, satisfies the following condition: Vn−1−Vn<0.002V, (where Vn−1 represents the open circuit voltage measured during the (n−1)th charge-discharge cycle, Vn represents the open circuit voltage measured during the nth charge/discharge cycle, and n is an integer.)
Resumen de: US2025277857A1
A battery management system includes a sensing circuit to acquire a state parameter of each of a plurality of battery cells connected in series; and a control circuit to determine, for each battery cell, a first state of charge (SOC) change which is a difference between a first SOC at a first charge time and a second SOC at a second charge time by applying a SOC estimation algorithm to the state parameter acquired during charging. The control circuit determines a reference factor by applying a statistical algorithm to the first SOC changes of at least two of the plurality of battery cells. The control circuit detects an internal short circuit fault in each battery cell based on the first SOC change of each battery cell and the reference factor.
Resumen de: US2025277858A1
An inspection method for a low-voltage defect of a lithium secondary battery includes performing a microcurrent charging/discharging process having N charging/discharging sections, N being an integer of 2 or more, and for each charging/discharging section, applying a microcurrent to the lithium secondary battery; measuring a change in voltage of the lithium secondary battery before and after each charging/discharging section; and screening for the low-voltage defect of the lithium secondary battery based on the measured change in voltage. The lithium secondary battery having the low-voltage defect is not shipped. The microcurrent for each charging/discharging section is at a current rate of 0.000001 C to 0.0001 C.
Resumen de: US2025277861A1
An electrochemical storage diagnostic system is configured to perform an electrical test to measure energy storage device parameters. The diagnostic system includes a charge management controller, electrically coupled to a power multiplexer, a power converter circuit, and an isolated converter circuit. The charge management controller is programmed with instructions to identify a device under test, selected from at least one member of the plurality of energy storage devices to perform an electrical test. Then, adjust a charge in the secondary energy storage device to a target voltage through the power multiplexer by transferring energy between the secondary energy storage device and a support device, selected from at least one member of the plurality energy storage devices. After that, transfer electrical power through the power multiplexer and power converter circuit to the device under test in order to perform the electrical test. Finally, complete the electrical test.
Resumen de: US2025277842A1
The present disclosure provides an insulation detection apparatus and method, and an energy storage apparatus, and relates to the technical field of energy storage safety. The insulation detection apparatus includes: a coupling conductor and a signal acquisition unit, where the coupling conductor and the signal acquisition unit are electrically connected, the coupling conductor and the signal acquisition unit are used to form an insulation detection loop with a device under test, and the signal acquisition unit is further used to detect an electrical signal in the insulation detection loop. The coupling plate and signal acquisition unit used in the present disclosure have a simple structure and low cost. Compared with the existing insulation impedance detection, the present disclosure has a high detection sensitivity and more reliable detection result.
Resumen de: US2025277859A1
Disclosed herein is an abnormal battery cell diagnosis device and method for identifying an abnormal battery cell. The abnormal battery cell diagnosis device includes a voltage measurement module configured to measure an initial open circuit voltage (OCV) or closed circuit voltage (CCV) of each battery cell, a timer configured to determine a minimum rest time for a battery cell of a battery pack, and a processor configured to calculate an inter quartile range (IQR) based on the initial OCV or CCV depending on whether the minimum rest time is satisfied, to set an outlier criterion, and to detect an abnormal battery cell using the set outlier criterion.
Resumen de: US2025277843A1
An insulation withstand voltage testing method includes applying a direct-current voltage from a zero voltage to a target voltage to a battery cell in a first preset time period using a voltage applying circuit in response to a testing start signal; obtaining a first current value generated by the battery cell based on the direct-current voltage in the first preset time period; continuously applying the direct-current voltage of the target voltage to the battery cell in a second preset time period using the voltage applying circuit; obtaining a second current value generated by the battery cell based on the direct-current voltage in the second preset time period; and if the first current value is less than a first preset current threshold, and the second current value is less than a second preset current threshold, determining that the battery cell passes insulation withstand voltage testing of this time.
Resumen de: US2025277862A1
A battery nickel sheet welding quality detection system includes a transverse moving platform; a detection assembly, including: a support, capable of being movably disposed on the transverse moving platform along a first linear direction relative to the transverse moving platform; a probe plate; probe assemblies each disposed at a corresponding preset position of the probe plate and for detecting relevant electrical parameters at a corresponding position of a battery, and including a probe base, probes and plug-in electrical connectors, and an adjustment mechanism, the probe plate being disposed at the bottom end of the adjustment mechanism; a camera assembly, configured to acquire first image information of the battery; and a control apparatus, configured to control, according to the first image information, the adjustment mechanism to adjust the probe plate to a detection position, where the first linear direction is parallel to the plane where the probe plate is located.
Resumen de: US2025278073A1
Battery production method includes determining quantity of first battery cells based on current first production work order in process of producing products by production device in first process of battery production line; determining quantity of second battery cells; if greater than or equal to the quantity of the first battery cells, sending control instruction to first production device in the first process, and taking next first production work order as the current first production work order; determining quantity of unfinished battery packs on station device for current second production work order and sending the quantity of the unfinished battery packs to the station device in process of producing products by the station device in the second process of the battery production line; and when the quantity of the unfinished battery packs is zero, taking next second production work order as the current second production work order.
Resumen de: US2025278081A1
A battery manufacturing method is applied to the battery manufacturing system. The battery manufacturing system includes a controller and production equipment. The battery manufacturing method includes: during product production by production equipment in any process of a battery production line, obtaining, by the controller, product information, where the production equipment is equipment corresponding to any process in a battery group production line; and in a case that the product information meets a product switching condition, controlling, by the controller, the production equipment to switch to producing a new-model product.
Resumen de: US2025277834A1
An insulation resistance detection device includes: a voltage measurer that measures a voltage at a first node among a plurality of nodes between a plurality of voltage dividing resistors included in an insulation detection circuit for detecting insulation resistance in a path through which a current from a battery flows; a determiner that determines whether the voltage at the first node measured by the voltage measurer is lower than or equal to a predetermined voltage; and a switcher that switches a state of a switch connected to a second node among the plurality of nodes to cause the voltage measured by the voltage measurer to exceed the predetermined voltage, when the voltage at the first node measured by the voltage measurer is determined to be lower than or equal to the predetermined voltage.
Resumen de: US2025276898A1
A carbon coated lithium metal phosphate (LMP) having improved characteristics may be made by a method comprising (i) milling a slurry comprised of LMP precursors and water, removing the water to form a mixture comprised of milled precursors, heating the mixture to an intermediate temperature of 200° C. to less than 400° C. to form an intermediate, mixing the intermediate with a carbon precursor in a solvent that dissolves the carbon precursor, removing the nonaqueous solvent to form a coated intermediate, and heating the coated intermediate to a reaction temperature of at least 400° C. to 1000° C. in a non-oxidizing atmosphere to form the carbon coated lithium manganese iron phosphate. The method enables the formation of carbon coated lithium manganese iron phosphate with electrochemical performance approaching theoretical even at larger average primary particle size utilizing commercially practicable production methods.
Resumen de: US2025276866A1
The disclosed subject matter provides a winding device that includes a material-placing mechanism, a mounting table, a winding member and a restraining member, wherein the material-placing mechanism is configured to convey a material strip; the winding member includes a winding needle base and a plurality of winding needles provided on the winding needle base, the winding needle base is rotatably provided on the mounting table, with a winding needle gap formed between the plurality of winding needles, such that the material strip passes through; the restraining member is provided outside the winding needle gap and configured to fix the material strip protruding from the winding needle gap with a preset force F1, the winding needle base is configured to drive the winding needle to rotate with a winding tension F2, and F1 is less than F2.
Resumen de: US2025276859A1
The equipment for loading adapters includes a frame, a gripping assembly, a positioning disc, and a transfer apparatus. The frame has multiple workstations. The gripping assembly and the positioning disc is arranged on the frame, where the positioning disc has multiple positioning slots, a pair of two positioning slots respectively position the adapter for the positive electrode and the adapter for the negative electrode, and the gripping assembly is configured to grip an adapter carried by the container at the workstation and move the adapter to a corresponding positioning slot, so that a position of the adapter for the positive electrode relative to the adapter for the negative electrode meets loading requirements. The transfer apparatus is arranged on the frame, and is used to pick up the adapters in the positioning slots together and load them to a welding assembly.
Resumen de: US2025276869A1
An adhesive tape attaching mechanism includes: an assembly base; a central adhesive tape suction assembly capable of adsorbing and attaching an adhesive tape to a first surface of a workpiece to be adhered; end adhesive tape suction assemblies arranged on two opposite sides of the central adhesive tape suction assembly, where each of the end adhesive tape suction assemblies includes an end driving member and an end adhesive tape suction member in transmission connection with the end driving member; and an end sliding assembly, disposed on the assembly base, where each of the end adhesive tape suction members is configured to be driven by the end driving member connected thereto, guided by the end sliding assembly to slide toward the central adhesive tape suction assembly for closing, and is capable of adsorbing, bending, and attaching the adhesive tape to a second surface and a third surface of the workpiece, respectively.
Nº publicación: US2025276860A1 04/09/2025
Solicitante:
CONTEMPORARY AMPEREX TECH HONG KONG LIMITED [CN]
CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED
Resumen de: US2025276860A1
A stacking apparatus configured to stack workpieces into a neat workpiece queue, where the workpiece queue includes a plurality of workpieces. The stacking apparatus includes: a base bracket; a stacking table for carrying at least one workpiece, where the stacking table is arranged on the base bracket; and at least two shapers, where the shapers act in pairs to perform an alignment operation for aligning the workpieces on the stacking table, paired shapers are configured in such a way that at least one of the actions enables the paired shapers to approach or move away from each other along a first direction above the stacking table, and the alignment operation is performed through the approaching action of the shapers, to obtain the neat workpiece queue through stacking.
BOPI
Sede Electrónica
