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1668
results.
Updated on
16/05/2025 [07:20:00]
Results 1300 to 1325 of 1668
Absstract of: US2025140969A1
A liquid cooling plate and a battery pack are provided. The liquid cooling plate includes a plate body and a separator. The plate body defines a cooling chamber, and the plate body is provided with a liquid inlet and a liquid outlet. The cooling chamber communicates with outside through the liquid inlet and the liquid outlet. The separator is installed to the plate body and separates the cooling chamber into cooling flow-channels, and adjacent cooling flow-channels communicate with each other. The separator is non-uniformly distributed at the plate body. Where the cooling flow-channel has a smaller flowing area, the cooling liquid flows faster, thereby increasing the flowing speed of the cooling liquid. Where the cooling flow-channel has a larger flowing area, the cooling liquid flows slower, thereby prolonging the heat exchange time of the cooling liquid and improving the uniformity of heat dissipation of the liquid cooling plate.
Absstract of: US2025140970A1
A friction stir welding method welds at least two members to be welded by overlapping the members to be welded and moving a welding tool. The friction stir welding method has a step of forming a closed space at a terminal end of a welding line which is a movement track of the welding tool, and a step of moving the welding tool to inside the closed space and pulling out the welding tool from the members to be welded.
Absstract of: US2025140959A1
An electric work vehicle includes a chassis, a battery housing to house a plurality of battery modules, a liquid cooling system, at least one electric motor, and at least one inverter. The liquid cooling system includes a pump, a radiator, and a fan. The battery housing is supported by the chassis. The at least one inverter is electrically connected to the plurality of battery modules and the at least one electric motor. The pump is attached to a back surface of the battery housing. The radiator and the fan are attached on a front surface of the battery housing. The at least one inverter is attached to a side surface of the battery housing that faces a width direction. The at least one inverter and the at least one electric motor are mounted between the fan and the pump in a front-rear direction.
Absstract of: US2025140943A1
A circuit module for coupling a plurality of energy cell units is disclosed. Energy modules, energy clusters, energy systems and cascaded circuitry comprising such circuit modules are also disclosed.
Absstract of: US2025135449A1
To provide a water-soluble chelating polymer that can rapidly trap a trace amount of heavy-metal ions to reduce the amount of heavy-metal ions to a ppm level or lower in a short time.Use a water-soluble chelating polymer comprising an anionic polymer having a carboxy group, a sulfonate group and/or a sulfate group bonded through an ionic bond to a chelating functional group having a cationic functional group, wherein the water-soluble chelating polymer contains 0.2 to 6 mmol/g of the chelating functional group and has a weight-average molecular weight in the range of 30,000 to 1,000,000.
Absstract of: US2025135955A1
An electric work vehicle includes a battery housing and a plurality of ducts. The battery housing includes a plurality of battery housing module compartments to house a plurality of battery modules, and each of the plurality of ducts is attached to a respective one of the plurality of battery housing module compartments. The plurality of battery housing module compartments includes a first row of battery housing module compartments and a second row of battery housing module compartments spaced apart from the first row of battery housing module compartments in an up-down direction of the electric work vehicle, and one of the plurality of ducts attached to the first row of battery housing module compartments is a different size and/or shape than another one of the plurality of ducts attached to the second row of battery housing module compartments.
Absstract of: US2025135952A1
A mobility apparatus includes a plurality of first wheels, at least one first driving motor configured to provide a driving force to the plurality of first wheels, a first high voltage battery configured to supply power to the at least one first driving motor, and a first controller configured to control the at least one first driving motor and the first high voltage battery, and, when a second high voltage battery is removably and electrically connected to a first mobility apparatus, the first controller may control either the first high voltage battery or the second high voltage battery to operate to supply power to the first driving motor while performing conditioning for the other one.
Absstract of: US2025135831A1
An electric work vehicle includes a battery housing including a first battery housing portion, and an air cooling system. The battery housing includes a plurality of battery housing module compartments to house a plurality of battery modules, the air cooling system includes a first evaporator and a second evaporator, the air cooling system includes a first warm air path and a second warm air path, the first warm air path fluidly connects the first battery housing portion to the first evaporator to exhaust first warm air from the first battery housing portion to the first evaporator, and the second warm air path fluidly connects the first battery housing portion to the second evaporator to exhaust second warm air from the first battery housing portion to the second evaporator.
Absstract of: US2025135676A1
Disclosed in one or more embodiments is a notching device including a die configured to support an electrode, a first stripper configured to move toward the die, and configured to press a mixture portion of the electrode, a second stripper configured to move toward the die, and configured to press an uncoated portion of the electrode, and a pattern portion configured to move toward the die, and configured to form a pattern on the uncoated portion.
Absstract of: US2025140822A1
A positive electrode active material precursor according to one aspect of the present invention may be a precursor including a plurality of hydroxide particles, and may satisfy Relational Expression 1 below in an XRD pattern obtained through Rietveld fitting as a result of X-ray diffraction (XRD) analysis using a CuKα ray:0.82≤FWHM(102)≤1.22,RelationalExpression1wherein a positive electrode active material precursor according to one aspect of the present invention may be also a precursor including a plurality of oxide particles, and may satisfy Relational Expression 2 below in an XRD pattern obtained through Rietveld fitting as a result of X-ray diffraction (XRD) analysis using a CuKα ray:127≤XRDpeakIntegralbreadth/4tanθ≤137,RelationalExpression2wherein, in above Relational Expression 1, said FWHM(102) means a full width at half maximum (FWHM(deg., 2θ)) of a (102) plane at an XRD peak defined by a hexagonal lattice having a R-3m space group, and in above Relational Expression 2, XRD peak Integral breadth is a value obtained by dividing an “area of the XRD peak” by a “height of the XRD peak,” and θ is a Bragg angle of the corresponding peak.
Absstract of: US2025140828A1
This invention provides a method for treating positive electrode active material particles comprising steps of a lithium-nickel composite is introduced into water and stirred to prepare a slurry; an aluminum-containing solution is dripped onto the slurry while the slurry is stirred; the slurry on which the aluminum-containing solution has been dripped is filtered to obtain a cake-like compound; and the cake-like compound is dried by performing a heat treatment, and a Li—Al hydroxide coating layer is formed on surfaces of secondary particles of the lithium-nickel composite, and at least part of grain boundary portions formed by adjacent primary particles located on the outermost surface, among a plurality of primary particles constituting the secondary particles, and thus possible to restrict any more cracking of particles than necessary and to control the amount of residual lithium, and a deterioration in battery characteristics can be restricted, even with repeated use over long time.
Absstract of: US2025140826A1
The present invention provides a positive electrode active material for a sodium secondary battery, including layered oxide particles containing at least sodium and a transition metal, and a coating layer located on the layered oxide particles, wherein the coating layer includes at least two compounds selected from compounds having crystal structures belonging to space groups P421c, Fd-3m, and Pnma, respectively.
Absstract of: US2025141261A1
A surgical system including battery packs, a power subsystem and a controller is provided. The power subsystem is configured to connect at least two battery packs in parallel during a backup mode, disconnect the battery packs in a non-backup mode, and prevent each battery pack from charging one or more other battery packs during parallel operation. The controller is configured to individually charge each battery pack to a power capacity equal to or less than a predetermined power capacity, such as 100 Wh.
Absstract of: US2025141212A1
A protection circuit arrangement includes a substrate having a first surface and a second surface; a connector on the first surface and electrically connected to a battery cell; an overvoltage protection element on the second surface and electrically connected to the connector; and a fuse on the first surface and electrically connected to the overvoltage protection element.
Absstract of: US2025140973A1
A battery module reduces the risk of secondary ignition or explosion and increases durability against external impacts. The battery module includes a plurality of secondary batteries respectively having a gas venting portion for discharging a gas generated therein to the outside at a predetermined pressure and arranged in a front and rear direction in two rows; and a cooling member including a body portion interposed between two rows of the plurality of secondary batteries and having a size corresponding to left and right sides of the plurality of secondary batteries, and a gas discharge portion provided to at least one of an upper portion and a lower portion of the body portion and having a gas discharge passage elongated from a front end to a rear end of the body portion.
Absstract of: US2025140949A1
An optical communication device includes a first detachable communication module structure configured to block light between an inside and an outside. The first detachable communication module structure may include: a first terminal on the outside; a second terminal on the outside; a first master light emitter attached to a first surface of the inside and coupled to the first terminal; and a first slave light receiver attached to a second surface of the inside and coupled to the second terminal, the first surface being opposite to the second surface.
Absstract of: US2025140946A1
A battery module and a battery protection method thereof are provided. The battery module includes a battery cell pack and a control circuit. The battery cell pack includes a plurality of battery cells connected in series. The control circuit detects an internal temperature of the battery module and determines whether the internal temperature of the battery module is greater than a temperature threshold value. When the internal temperature is greater than the temperature threshold value, the control circuit turns on a self-balancing function.
Absstract of: US2025140947A1
A battery system includes a plurality of cells, a hermetically sealed pack case, a first abnormality detection sensor, a second abnormality detection sensor, and a controller. The plurality of cells each includes a hermetically sealed cell case. The cell case includes a first pressure valve configured to irreversibly rupture by a predetermined activation pressure. The controller is configured to execute an abnormality determination process of determining that an abnormality occurs in at least one of the plurality of cells if the pressure value detected by the first abnormality detection sensor is higher than a predetermined threshold value and the detection value detected by the second abnormality detection sensor is higher than a predetermined threshold value.
Absstract of: US2025140945A1
A battery pack module, for example, is used in an electric or hybrid aircraft. A battery pack module includes: a plurality of battery cells arranged in a battery cell array; a battery management system electrically connected to the battery cell array; an enclosure surrounding the battery cell array; a vent connected to the enclosure and arranged to provide a fluid flow path between an interior of the enclosure and an external environment; a disc arranged to provide a fluid seal between the interior of the enclosure and the vent, the disc configured to rupture upon a pressure differential between the interior of the enclosure and the external environment exceeding a predetermined threshold; and a sensing circuit connected between the disc and the battery management system and configured to provide a signal to the battery management system upon rupture of the disc.
Absstract of: US2025135913A1
A battery system includes an array of cells and an insulating plate. The array of cells is arranged in first and second subsets of cells. The first and second subsets of cells define a space therebetween. The insulating plate has a central region disposed within the space. The insulating plate has first and second lateral regions disposed external to the space and extending beyond first and second opposing lateral ends of the array of cells, respectively. The central region has a first dimension extending in a first direction between the first and second subsets of cells. The first and second lateral regions have second and third dimensions, respectively, extending in a second direction. The second direction is substantially parallel to the first direction. The second and third dimensions are greater than the first dimension.
Absstract of: US2025135896A1
A vehicle includes a system performing a method of operating the vehicle. The system includes a battery pack, a sensor associated with the battery pack, a cooling system for cooling the battery pack, and a processor. The processor is configured to measure a battery pack parameter of the battery pack for an occurrence of a battery pack fault, measure a sensor parameter for the occurrence of a sensor fault in the sensor, measure a cooling system parameter of the cooling system for the occurrence of a cooling system fault, determine an ingress of a fluid into the battery pack based on the occurrence of the battery pack fault and one of the sensor fault and the cooling system fault, and perform an action based on the ingress of the fluid into the battery pack.
Absstract of: US2025135730A1
Aspects of the disclosure include systems and methods that leverage adjacent component heating to accelerate the cure time of thermal interface adhesives. An exemplary method can include receiving a battery pack and a thermal management system including a cooling plate, an upper tray, and a lower tray joined to opposite surfaces of the cooling plate to define an enclosed volume therebetween. The method includes wetting an interface between the battery pack and the thermal management system with an adhesive and joining the battery pack to the thermal management system at the interface. The method includes directing a heating fluid through the enclosed volume, thereby heating the adhesive. The method includes, responsive to determining that a temperature of the adhesive has reached a target temperature, maintaining the temperature for a soak time according to a cure curve of the adhesive to achieve a target bond strength.
Absstract of: US2025135522A1
A secondary battery case manufacturing device includes a die including a first surface and a second surface that are opposite to each other, a punch hole extending through the first surface and the second surface, a punch arranged to face the first surface and configured to press a workpiece toward the punch hole in a first direction, a knockout member arranged to face the second surface and configured to press the workpiece in a second direction opposite to the first direction, and a stamp member on the knockout member and configured to imprint a pattern on the workpiece as the knockout member comes into contact with the workpiece.
Absstract of: US2025140806A1
A method for manufacturing a cathode active material for lithium secondary battery is provided, which includes a lithium metal composite oxide and a coating layer coating at least a part of one particle of the lithium metal composite oxide, the method including a coating step of bringing the lithium metal composite oxide into contact with a coating liquid for forming the coating layer using a coating device provided with a two-fluid nozzle, in which the lithium metal composite oxide satisfies (A), the coating step includes spraying each of the coating liquid and high-pressure airflow from the coating device, and the high-pressure airflow satisfies (B).
Nº publicación: US2025140812A1 01/05/2025
Applicant:
SAMSUNG SDI CO LTD [KR]
Samsung SDI Co., Ltd
Absstract of: US2025140812A1
A positive electrode active material, a method of preparing the same, a positive electrode, and a rechargeable lithium battery including the same are disclosure. The positive electrode active material includes core particles including a layered lithium nickel-manganese-based composite oxide having a nickel content (e.g., amount) of greater than or equal to about 60 mol % based on 100 mol % of a total metal in the positive electrode active material excluding lithium, and a coating layer located on the surface of the core particles and containing Al, wherein an Al content (e.g., amount) of the coating layer is about 0.5 mol % to about 1.5 mol % based on 100 mol % of a total metal in the layered lithium nickel-manganese-based composite oxide excluding lithium, and the coating layer has a fiber shape (e.g., in a form of fibers, having a fibrous structure, etc.).
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