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1498
resultados
Última actualización
12/07/2025 [07:31:00]
Resumen de: FR3158195A1
Circuit de fluide diélectrique pour un dispositif de régulation thermique, notamment de véhicule automobile L’invention concerne un circuit de fluide diélectrique pour un dispositif de régulation thermique, ledit circuit comprenant au moins un conduit (11) de distribution en fluide diélectrique et un nombre prédéfini de buses (13) d’aspersion configurées pour projeter du fluide diélectrique, par au moins un orifice de projection. Au moins deux orifices de projection sont configurés pour arroser au moins une zone commune (Z1, Z2) d’au moins un logement (7) dudit dispositif. Au moins un premier orifice est agencé pour projeter au moins un premier jet (J1) de fluide diélectrique sur la zone commune (Z1, Z2) à une première distance (D1) d’une bordure du logement (7). Au moins un deuxième orifice est agencé pour projeter au moins un deuxième jet (J2) de fluide diélectrique sur la zone commune (Z1, Z2) à une deuxième distance (D2) plus éloignée de la bordure du logement (7). Figure pour l’abrégé : Fig. 3
Resumen de: US2025223183A1
The present disclosure relates to a lithium compound for recovering valuable metals and a method of recovering the same, and a method of recovering a lithium compound for recovering valuable metals includes: preparing a battery; freezing and forcibly discharging the battery; shredding the battery into a battery shredded material; and heating the battery shredded material, wherein the heating of the battery is performed in a temperature range of 1,100 to 1,400° C., a degree of vacuum (Log P atm) in the heating of the battery is in a range of −4 to 0, a lithium compound recovered through the heating of the battery contains impurities, and the impurities include, by wt %, 1.8 wt % or less (excluding 0 wt %) of Na, 0.06 wt % or less (excluding 0 wt %) of K, 0.62 wt % or less (excluding 0 wt %) of Ca, and 0.47 wt % or less (excluding 0 wt %) of Mg.
Resumen de: US2025223167A1
The present invention relates to a low-defect carbon nanotube sludge and a preparation method therefor, a conductive composite material based on the low-defect carbon nanotube, a negative electrode slurry using same, a negative electrode, and a lithium secondary battery, and has the technical gist of comprising carbon nanotubes that have crystallinity while satisfying relational expression 1 below. relational expression 1 5≤IG/ID≤50 (wherein IG/ID is a value calculated as a ratio of a maximum peak intensity (IG) measured at 1,580±50 cm−1 to a maximum peak intensity (ID) measured at 1,360±50 cm−1 in a wavenumber region of a Raman spectrum.)
Resumen de: US2025226521A1
The present application provides a battery cell, a battery and an electrical device, wherein the battery cell comprises: a case having an accommodating space and an opening communicated with the accommodating space; an electrode assembly accommodated in the storage space; an end cover closing the opening; an electrode terminal provided in the case, the electrode terminal being electrically connected to the electrode assembly; and a pressure relief portion provided in the end cover, the pressure relief portion being used to release an internal pressure of the case. In the technical solution of the present application, the electrode terminal and the pressure relief portion of the battery cell are disposed on different surfaces, which can reduce the risk of the conductive discharge discharged through the pressure relief portion being connected to the electrode terminal and causing a short-circuit of the electrode terminal when the battery cell is in thermal runaway.
Resumen de: US2025226550A1
An electrode plate, where the electrode plate includes a current collector, an active material layer, and a tab connection sheet, and when the electrode plate is in an unfolded state, the current collector includes a first part and a second part in a width direction of the electrode plate, the active material layer is disposed on a surface of the first part, the tab connection sheet overlaps with a surface of the second part to form an overlap region, and the tab connection sheet is welded to the surface of the second part to form an electrical connection to the second part, where in a length direction of the electrode plate, an area ratio of a weld mark to a welding region is greater than or equal to 20%, and a length ratio of the welding region to the overlap region is greater than or equal to 60%.
Resumen de: US2025226517A1
The present invention relates to a secondary battery module, a secondary battery pack including the same, and a secondary battery module inspection device for inspecting the secondary battery module, and more particularly, to a secondary battery module including a plurality of secondary batteries, a secondary battery pack including the same, and a secondary battery module inspection device for inspecting the secondary battery module. The present invention provides a secondary battery module including: a plurality of secondary batteries arranged in parallel to each other; and a plurality of buffer pads inserted to be adjacent to the secondary batteries along an arrangement direction of the plurality of secondary batteries, wherein the plurality of buffer pads are provided to have thicknesses different from each other and are selectively inserted according to thicknesses of the adjacent secondary batteries.
Resumen de: US2025226516A1
A battery assembly includes a base plate; a resin layer disposed on an upper surface of the base plate; a battery cell located above the resin layer; and an insulating sheet located between the battery cell and the resin layer, the insulating sheet having a score line.
Resumen de: US2025226525A1
Provided are a battery and an electrical device. The battery includes a battery cell and a functional component. A side of the battery cell along a first direction is provided with a pressure relief mechanism. The functional component is located on one side of the battery cell where the pressure relief mechanism is provided, and the functional component includes a thermal management component and a protective component. The thermal management component is attached to the battery cell, and the thermal management component is configured to regulate a temperature of the battery cell. A protective component is connected to the thermal management component and covers at least a portion of the pressure relief mechanism.
Resumen de: WO2025145618A1
Provided in the present application are a battery welding apparatus and a battery welding method. The battery welding apparatus comprises a conveying line, a battery cell feeding device, a connecting piece feeding device and a welding device. The conveying line comprises a plurality of carriers arranged in a conveying direction thereof. The battery cell feeding device comprises at least two battery cell feeding mechanisms, the at least two battery cell feeding mechanisms being respectively used for feeding at least two battery cell groups into at least two target carriers of the conveying line, and each battery cell group comprising at least two battery cells. The connecting piece feeding device is used for feeding connecting pieces into the at least two target carriers. The welding device is arranged beside the conveying line. The conveying line is movably arranged to successively convey the at least two target carriers to the welding device for welding. The welding device is used for welding the connecting piece and the at least two battery cells in each target carrier. The battery welding apparatus of the present application improves the welding efficiency.
Resumen de: WO2025145851A1
A composite negative electrode sheet, a preparation method therefor and a lithium ion battery. The composite negative electrode sheet uses a double-layer coating design. A first active substance layer and a second active substance layer are successively provided on the surface of a negative electrode current collector, the active substance of the first active substance layer being first graphite, and the active substance of the second active substance layer being second graphite. The height-width ratio and OI value of the first graphite and the height-width ratio and OI value of the second graphite satisfy the following relationship: 2≤(B×OIa)/(A×OIb)≤30, where A is the height-width ratio of the first graphite and is 0.1 to 0.65, OIa is the OI value of the first graphite and is 8 to 20, B is the height-width ratio of the second graphite and is 0.8 to 0.99, and OIb is the OI value of the second graphite and is 2 to 10.
Resumen de: WO2025145651A1
Provided in the present application are a high-voltage box (400), a battery (100) and an electrical device. The high-voltage box (400) comprises a box body (410) connected to a case body (10), an accommodation cavity (4101) being formed in the box body (410), and the box body (410) being provided with a through hole (411) communicated with the accommodation cavity (4101). The high-voltage box (400) provided in the embodiments of the present application enables an electrical connection structure (30) of the battery (100) to be inserted into the through hole (411) and to extend into the accommodation cavity (4101), such that the electrical connection structure (30) and an electrical component (420) in the box body (410) can be directly and electrically connected, which, compared with the manner of mating connection of a male terminal and a female terminal of a connector, can effectively reduce the probability of connection failure.
Resumen de: US2025223129A1
A floatation roll supports a work to be conveyed contactlessly using a force applied to the work contactlessly. The floatation roll has a cylindrical shape extending in a direction of width of the work, and at least a surface of the floatation roll facing the work being formed by a circumferential surface. A driving unit rotates the floatation roll in a yaw direction. Of a wrap angle of the work supported by the floatation roll contactlessly, a wrap angle on an entry side with respect to an apex point and a wrap angle on an exit side with respect to the apex point are set to be different.
Resumen de: US2025223126A1
A mandrel member of a winder for a secondary battery, which is mounted in a winder configured to manufacture a jelly roll-type electrode assembly by winding a stack of a first electrode plate, a separator, and a second electrode plate, the mandrel member comprising a cylindrical body having a hollow portion, wherein the cylindrical body includes a plurality of slits having a planar shape to cross the cylindrical body in a hollow axis direction so that the hollow portion inside the cylindrical body is in fluid communication with the outside of the cylindrical body.
Resumen de: US2025222826A1
Electrically powered vehicles with redundant power distribution circuits employ inverters and a multi-phase alternating current (AC) motor. An electrically powered vehicle includes batteries, inverters, interphase transformers, and a three-phase AC motor. Each of the inverters generates a three-phase AC input from power supplied by an associated one of the batteries. The interphase transformers generate drive phases for the AC motor from the three-phase AC inputs generated by the inverters.
Resumen de: US2025222827A1
An immersion cooling system having a dual pump system architecture and operation for immersion cooling of batteries for electric vehicles. The system can include a first pump and a second pump arranged in parallel, the first pump being, relative to the second pump, a high-pressure, low-flow pump. The differences in pressure and flow rate capacities of the pumps can be beneficial with respect to the pumping of a dielectric cooling fluid at different viscosities. In instances in which the dielectric cooling fluid has a relatively high viscosity, the immersion cooling system can selectively operate in a pressure mode wherein the relatively higher-pressure capabilities of the first pump are utilized. Conversely, in instances in which the dielectric cooling fluid has a relatively low viscosity, the immersion cooling system can selectively operate in a flow mode wherein the relatively higher flow capabilities of the second pump are utilized.
Resumen de: US2025222788A1
A supercapacitor pack is provided for a vehicle having a power source comprising a battery pack accommodated in a battery pack housing of the vehicle. The supercapacitor pack comprises a housing having means for attaching the supercapacitor pack to the battery pack housing such that a surface of the supercapacitor pack housing contacts a surface of at least one battery of the battery pack to secure or at least stabilize the position of the at least one battery relative to the battery pack housing. The supercapacitor pack housing has an interior space accommodating one or more supercapacitor devices. The one or more supercapacitor devices are electrically connected to an electrical port provided on the supercapacitor pack housing. This enables the supercapacitor pack to be electrically easily connected to the battery pack of the vehicle.
Resumen de: US2025226536A1
An insulation-layer forming composition for a lithium secondary battery, the composition not including carboxymethylcellulose, and comprising a conjugated diene copolymer as a binder polymer; a non-aqueous organic solvent; and an emulsifier. A gel content of the conjugated diene copolymer is 70 wt % or more with respect to a total weight of the conjugated diene copolymer, and a content of the emulsifier is 0.3 wt % or more with respect to the total weight of the conjugated diene copolymer. A cathode comprising the insulation-layer forming composition, a lithium secondary battery including the cathode, and a method of manufacturing the cathode are also provided.
Resumen de: US2025226548A1
An electrochemical apparatus includes an electrode plate. The electrode plate includes a current collector and an active material layer disposed on the surface of the current collector, and in an unwinding state of the electrode plate, a plurality of non-coated regions extend along width direction of the electrode plate on edges of the current collector, an electrode tab connecting sheet is provided with on the surface of each non-coated region, and the electrode tab connecting sheet is electrically connected to the non-coated region; where thickness L1 of the electrode tab connecting sheet satisfies: 3 μm≤L1≤35 μm, and/or fracture strength S1 of the electrode tab connecting sheet satisfies: 200 MPa≤S1≤880 MPa.
Resumen de: US2025226498A1
Disclosed herein relates to a battery pack for accommodating battery modules. More specifically, the battery pack of the present invention includes a pack case including a module area where the battery module is seated, wherein the pack case includes: a base plate; a side wall coupled along the perimeter of the base plate; and a support wall coupled to an inner surface of the side wall, wherein the support wall includes a coupling part protruding in a ribbed shape on one side opposite the side wall, and the side wall includes an insertion groove recessed for insertion of a coupling part of the support wall on the inside.
Resumen de: US2025226515A1
A housing is divided into a first case and a second case. The first case and the second case are joined at a position where the first case and the second case overlap each other, and include at the position: a first engagement mechanism in which the first case includes a first protrusion protruding in first direction DA, and the second case includes a second recess formed at a position corresponding to the first protrusion; and a second engagement mechanism in which the first case includes a first recess provided at a position separated from the first protrusion and the second case includes a second protrusion formed at a position separated from the second recess, the position corresponding to the first recess when the second case is joined to the first case, and the second protrusion protruding in second direction DB opposite to first direction DA.
Resumen de: US2025226534A1
Unit cells for use in electrical current conductance, the electrode structure comprising an electrode separated from a counter electrode by a separator, the unit cell being configured to accommodate expansion of electrode active material during a second use of the device e.g., at least in part by using spacer structures.
Resumen de: US2025226482A1
A battery thermal management system includes a battery and a pulse charging and discharging apparatus, wherein the battery includes a pole and an electrically conductive housing, which is arranged at the periphery of the pole; the pulse charging and discharging apparatus is electrically connected to the battery, and is used for performing pulse charging and discharging on the battery to generate a varying magnetic field; and the electrically conductive housing is located within the varying magnetic field, and is used for generating an induced current and heating the pole.
Resumen de: WO2025145801A1
An insulating film (100) for a battery, and the battery. The insulating film comprises a first sub-insulating film (10) and a second sub-insulating film (20) which are integrated and arranged in a first direction (X direction), wherein the first sub-insulating film (10) is provided with a first positioning hole (11), and the second sub-insulating film (20) is provided with a second positioning hole (21); and the first positioning hole (11) is a circular hole, the connecting line between the center point of the first positioning hole (11) and the center point of the second positioning hole (21) is a first extending straight line, and the extension direction of the second positioning hole (21) is the same as the extension direction of the first extending straight line.
Resumen de: WO2025145800A1
A battery cell assembly (100), a battery and a vehicle. The battery cell assembly (100) comprises: a battery cell body (10); and an insulating film (20), wherein the insulating film (20) comprises a substrate layer (21) and a bonding layer (22) which are stacked, the substrate layer (21) comprising a first sub-substrate layer (211) and second sub-substrate layers (212) which are integrated and arranged in a first direction (Y direction) of the battery cell assembly (100), the bonding layer (22) being arranged on the surface of the first sub-substrate layer (211), and the first sub-substrate layer (211) being adhered to the surface of the battery cell body (10) by means of the bonding layer (22).
Nº publicación: WO2025145592A1 10/07/2025
Solicitante:
CONTEMPORARY AMPEREX TECH CO LIMITED [CN]
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Resumen de: WO2025145592A1
A bus-bar assembly (10) inside a battery (100), used for achieving electrical connection of a plurality of battery cells (20), wherein the plurality of battery cells (20) and the bus-bar assembly (10) are accommodated in a case (30). The bus-bar assembly further comprises a heat absorption component (2); heat generated by the plurality of battery cells (20) can be transferred by means of a bus-bar component (1); the heat absorption component (2) is connected to the bus-bar component (1) to absorb the heat on the bus-bar component (1), so as to reduce the heat transferred from one battery cell (20) to another battery cell (20), thereby improving the reliability of the battery (100).
BOPI
Sede Electrónica
