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1859
resultados
Última actualización
14/05/2025 [09:11:00]
Resultados 1350 a 1375 de 1859
Resumen de: 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.
Resumen de: 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.
Resumen de: 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.
Resumen de: 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.
Resumen de: 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.
Resumen de: US2025140971A1
Cooling device for a battery includes a casing formed from two sheets of flexible material, a circulation channel, an inlet orifice for fluid and an outlet orifice, and at least one fluidic connector arranged through the inlet or outlet orifice. The fluidic connector includes a base having a base plate defining a central through-opening, the base plate defining an upper face arranged against an inner face of the sheet, a tube integral with the base plate, extending through the inlet orifice or the outlet orifice and leading through the central opening, and a ring assembled on the base and circumferentially surrounding the tube, arranged to bear against an outer face of the sheet, the upper face of the base plate being fixed to the inner face of the sheet by at least one weld circumferentially surrounding the tube.
Resumen de: 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.
Resumen de: US2025140889A1
A sheet connection device for a secondary battery including: a first main roller around which a first sheet is wound; a second main roller around which a second sheet is wound; a first correction roller configured to wind at least a portion of the first sheet moving from the first main roller; a first sensor configured to detect a position of the first sheet moving from the first main roller to the first correction roller; a controller configured to adjust the position of the first sheet in a sheet width direction while the at least the portion of the first sheet is being wound around the first correction roller; and a connection unit configured to connect the repositioned first sheet with the second sheet.
Resumen de: US2025140888A1
Apparatus and method for aligning the lugs on a stack of battery plates in a jig box. The apparatus comprises a frame carrying a lug alignment mechanism for positioning over the jig box. The frame comprises a set of feet that engage the jig box to locate the lug alignment mechanism. The frame feet on one side comprise fixed surfaces configured to engage contact surfaces on a first side of the jig box. The frame feet on the opposite side comprise for engaging contact surfaces on the corresponding second side. The actuators are operable such that when the frame is positioned over the jig box, moveable surfaces are moveable between a first position and a second position in which they are engaged with the contact surfaces on the second side and the fixed surfaces are engaged with the contact surfaces on the first side.
Resumen de: US2025140790A1
A non-aqueous rechargeable battery includes a cathode sheet, an anode sheet, and a non-aqueous electrolyte solution. A cathode mixture forming the cathode sheet contains a cathode active material, a fibrous conductive material, a hydroxy-NMP, and a cathode binder. An amount of the hydroxy-NMP present per unit area of the cathode active material is between 0.0026 μg/cm2 and 0.0150 g/cm2, inclusive.
Resumen de: US2025140805A1
A negative electrode for a lithium secondary battery, a method for manufacturing the same, and a lithium secondary battery including the same are provided. The negative electrode includes a first negative electrode active material layer having a first negative electrode active material comprising one or more selected from the group consisting of a carbon-based active material, a silicon-based active material, a metal-based active material capable of forming an alloy with lithium, and a lithium-containing nitride; and a second negative electrode active material layer having a second negative electrode active material comprising one or more selected from the group consisting of Si, SiOx (0
Resumen de: US2025140804A1
In accordance with one exemplary embodiment of the present invention, there is a negative electrode active material for a secondary battery which includes a silicon-carbon composite that includes a carbon-based material and a first silicon-based nano-coating layer formed on the carbon-based material; silicon carbide; silicon nitride; and second silicon-based particles.
Resumen de: US2025140813A1
Provided is a positive active material for a rechargeable lithium battery including a nickel-based composite oxide having a nickel content of greater than or equal to 60 mol % relative to a total amount of metal excluding lithium and a coating layer on the surface of the nickel-based composite oxide, wherein the coating layer includes lithium fluoride (LiF) and metal fluoride produced by firing a metal oxide and a fluorine-based organic material.
Resumen de: US2025140819A1
Systems and methods for silicon dominant lithium-ion cells with controlled lithiation of silicon may include a cathode, an electrolyte, and an anode. The anode may include silicon lithiated at a level after discharge that is configured to be above a minimum threshold level, where the minimum threshold lithiation is 3% silicon lithiation. The lithiation level of the silicon after charging the battery may range between 30% and 95% silicon lithiation, between 30% and 75% silicon lithiation, between 30% and 65% silicon lithiation, or between 30% and 50% silicon lithiation. The lithiation level of the silicon after discharging the battery may range between 3% and 50% silicon lithiation, between 3% and 30% silicon lithiation, or between 3% and 10% silicon lithiation. The minimum threshold level may be a lithiation level below which a cycle life of the battery degrades. The electrolyte may include a liquid, solid, or gel.
Resumen de: US2025140818A1
A negative electrode composition, a negative electrode including the same, and a lithium secondary battery including the negative electrode are provided. The negative electrode composition comprises a silicon-based active material comprising Si and optionally SiOx (0<x<2) and including 90 parts by weight or more of Si based on 100 parts by weight of the silicon-based active material; a linear conductive material comprising a single-wall carbon nanotube and a multi-wall carbon nanotube; and a negative electrode binder, and the negative electrode composition comprises the silicon-based active material in an amount of 80 parts by weight or more and 95 parts by weight or less based on 100 parts by weight of the negative electrode composition and the negative electrode binder in an amount of 3 parts by weight or more and 10 parts by weight or less based on 100 parts by weight of the silicon-based active material.
Resumen de: US2025140847A1
A coated active material of the present disclosure is a coated active material including an active material and a coating layer containing a first solid electrolyte and coating at least part of the surface of the active material. The first solid electrolyte contains Li, M1, O, and X1. M1 is at least one selected from the group consisting of Ta and Nb. X1 is at least one selected from the group consisting of F, Cl, Br, and I. The thickness of the coating layer is greater than 0 nm and less than or equal to 75 nm. A molar ratio Li/M1 of Li to M1 is greater than or equal to 0.60 and less than or equal to 2.4. A molar ratio O/X1 of O to X1 is greater than or equal to 0.16 and less than or equal to 0.35.
Resumen de: 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.
Resumen de: 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.
Resumen de: US2025135516A1
A roller is configured to roll an electrode plate, and the roller includes a rolling portion and a temperature regulating assembly. A rolling surface for rolling the electrode plate is formed on an outer surface of the rolling portion, and a mounting hole is provided inside the rolling portion along an axial direction of the rolling portion. The temperature regulating assembly is provided in the mounting hole and configured to exchange heat with the rolling portion. A rolling apparatus has a first roller and a second roller. The first roller and the second roller are jointly configured to roll an electrode plate. When the rolling portion is rolling an electrode plate, the temperature regulating assembly regulates a temperature of the rolling portion along the axial direction, so as to adjust the radial deformation of the rolling portion depending on the rules of thermal expansion and contraction.
Resumen de: US2025135523A1
A method of making a cold plate includes stacking three aluminum sheets on top of each other while each of the three aluminum sheets is generally flat. An edge of the three aluminum sheets are secured together. A top one of the aluminum sheets is welded to a middle one of the aluminum sheets at a plurality of first locations and a bottom one of the aluminum sheets is welded to the middle one of the aluminum sheets at a plurality of second locations different than the plurality of first locations. A pressurized medium is supplied between the top one of the aluminum sheets and the bottom one of the aluminum sheets to separate the top one of the aluminum sheets from the bottom one of the aluminum sheets and deform the middle one of the aluminum sheets.
Resumen de: 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.
Resumen de: 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.
Resumen de: 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.
Resumen de: 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.
Nº publicación: US2025140961A1 01/05/2025
Solicitante:
CATERPILLAR INC [US]
Caterpillar Inc
Resumen de: US2025140961A1
Typically, electric power sources, such as batteries and fuel cells, require cooling to temperatures near or below ambient temperature for safe and efficient operation. Traditional cooling systems are not be able or practical to cool the components to the required temperatures, due to the lack of temperature differential between the required cooling temperature and the ambient temperature, which drives the heat transfer. Disclosed embodiments optimize the efficiency of a cooling system based on ambient conditions. In particular, embodiments determine input parameters from one or more sensed parameters, such as ambient temperature and ambient pressure, and utilize these input parameters in a process that maximizes the operation of cooling units in the most efficient mode.
BOPI
Sede Electrónica
