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586
resultados
Última actualización
25/08/2026 [07:49:00]
Resultados 300 a 325 de 586
Resumen de: AU2025355974A1
A battery pack, a new energy device, a fire-extinguishing method and system for a battery pack, and a readable storage medium, which relate to the technical field of new energy batteries and are used to improve the reliability of battery packs during use. The battery pack comprises a case assembly (1), a cell assembly (2), a first-stage fire-extinguishing assembly (3) and a second-stage fire-extinguishing assembly (4). The case assembly (1) comprises an accommodating cavity (11) and a fire-extinguishing agent injection port (12) in communication with the accommodating cavity (11). The cell assembly (2) is mounted in the accommodating cavity (11). The first-stage fire-extinguishing assembly (3) is mounted in the accommodating cavity (11), and the first-stage fire-extinguishing assembly (3) is configured to extinguish a fire on the cell assembly (2). The second-stage fire-extinguishing assembly (4) is mounted outside the case assembly (1) and is in communication with the fire-extinguishing agent injection port (12), and the second-stage fire-extinguishing assembly (4) is configured to spray a fire-extinguishing agent onto the cell assembly (2) in the accommodating cavity (11). In the technical solution, a two-stage fire-extinguishing assembly is used, thus improving the fire-extinguishing effect. In addition, the battery pack can adapt to battery systems of different sizes, with a high level of universality, thereby greatly reducing research and development and design costs.
Resumen de: WO2026170821A1
The present application relates to a casing transfer device and a battery production apparatus. The casing transfer device comprises a conveying assembly and an aligning assembly. The aligning assembly comprises blocking edges and driving members, wherein the blocking edges enclose an aligning channel for casings to pass through, and the aligning channel tapers from a feeding end to a discharge end. The portion of the aligning channel at the discharge end may be configured to have a size comparable to that of a single casing. The plurality of housings taken in a full-tray manner are first placed on a bearing surface of the conveying assembly, and are driven by the conveying assembly to be conveyed from the feeding end to the discharging end. During conveyance by the conveying assembly, the plurality of casings pass through the aligning channel, and can converge toward the middle of the aligning channel under the action of the blocking edges. Moreover, the driving members can cause the casings to vibrate by driving the blocking edges to vibrate, thereby preventing the casings from being stuck in the aligning channel. Therefore, in the process of passing through the aligning channel, the plurality of casings will be gradually aligned into a single row under the guidance and vibration of the blocking edges, and finally output from the discharge end.
Resumen de: US20260245879A1
A negative electrode active material, a method for manufacturing the same, a negative electrode composition, a negative electrode for a lithium secondary battery including the same, and a lithium secondary battery including the negative electrode. The negative electrode active material includes a lamellar structure silicon-based active material of Formula 1:where x has a range of >0 to <100 in atomic weight %, and M includes one or more selected from among Al, Ni, Co, Ti, Mn, Cu, Cr, Fe, Zr. Ag, and Au; and the lamellar structure silicon-based active material satisfies Formulas 2 and 3:10nm≤Y≤1μmFormula210nm≤X≤1μmFormula3where X refers to a size of primary silicon of the lamellar structure silicon-based active material, and Y refers to an interlamellar spacing of the lamellar structure silicon-based active material.
Resumen de: US20260245963A1
Provided are an electrolyte additive, an electrolyte for a lithium secondary battery and a lithium secondary battery including the same. Such electrolyte may achieve excellent high-temperature storage characteristics and high-temperature cycle characteristics by applying an electrolyte additive including a compound represented by Formula 1 capable of effectively suppressing the deterioration of a positive electrode, and of being not easily decomposed on a negative electrode:in Formula 1,R is an alkyl group having 1 to 10 carbon atoms.
Resumen de: US20260243835A1
0000 An apparatus for diagnosing a battery according to aspects of the present disclosure includes a profile obtaining unit configured to obtain a battery profile representing a correspondence relationship between voltage and capacity of a battery that is charged or discharged at a predetermined target C-rate; a profile correcting unit configured to generate a corrected profile by correcting the battery profile based on an overpotential profile representing overpotential of a criterion battery for each capacity that occurs when the reference battery is charged or discharged at the target C-rate, and generate an adjusted positive electrode profile adjusted to represent a correspondence relationship between a positive electrode capacity and a positive electrode potential of the battery to be diagnosed and an adjusted negative electrode profile adjusted to represent a correspondence relationship between a negative electrode capacity and a negative electrode potential of the battery using the corrected profile; and a control unit configured to diagnose a state of the battery to be diagnosed based on an NP ratio extracted based on the adjusted positive electrode profile and the adjusted negative electrode profile.
Resumen de: US20260245942A1
A secondary battery manufacturing method includes supplying and transferring a pouch fabric via a roll transfer device and slitting the pouch fabric in a slitting direction perpendicular to a transfer direction such that the slit pouch fabric corresponds to a length of a unit pouch, wherein, the step of slitting partially cut the pouch fabric such that both ends thereof in the slitting direction are not cut, and wherein the step of supplying and transferring the pouch fabric comprises supporting and transferring the uncut portions of both ends of the pouch fabric after the step of slitting the pouch fabric. A secondary battery manufacturing device is also provided. The secondary battery manufacturing method and the secondary battery manufacturing device can effectively perform pouch cutting and foreign substance removal through a roll transfer process and continuously perform unit pouch forming.
Resumen de: US20260245866A1
In some aspects, the present disclosure provides a lithium metal battery having a negative electrode that comprises a substantially pure lithium metal and a positive electrode that comprises the epsilon polymorph of vanadyl phosphate (ε-VOPO4). The lithium metal can have less than five ppm of non-metallic elements by mass. The ε-VOPO4 can be made from solvothermally synthesized H2VOPO4, and be optimized to reversibly intercalate two Li-ions to reach full theoretical capacity with a coulombic efficiency of 98%. This material can adopt a stable 3D tunnel structure and can extract two Li-ions per vanadium ion, giving a theoretical capacity of 305 mAh/g, with an upper charge/discharge plateau at around 4.0 V, and one lower at around 2.5 V. The ε-VOPO4 particles may be modified with niobium (Nb) to improve the cycling stability.
Resumen de: US20260242972A1
A surface-treated steel sheet according to one aspect of the present invention is a surface-treated steel sheet including: a base steel sheet; a Ni-containing layer disposed on a surface of the base steel sheet; and a Ni—W alloy layer disposed on a surface of the Ni-containing layer, wherein the Ni-containing layer includes an Fe-diffused alloy layer, and the surface-treated steel sheet includes a W depletion layer in a range from a surface of the Ni—W alloy layer to a depth of 10 nm. In a method for manufacturing a surface-treated steel sheet according to another aspect of the present invention, an atmospheric dew point in annealing is set to −25 to 5° C., a soaking time in the annealing is set to 10 to 180 seconds, and a maximum temperature in the annealing is set to 630 to 860° C.
Resumen de: US20260243833A1
0000 In a battery analysis system, a data reception unit receives battery data of a battery pack mounted on an apparatus via the apparatus or a data relay system. A battery data retention unit stores the battery data that have been received. A battery state analysis unit reads the battery data that has been stored, analyzes the battery data that has been read, and estimates a battery state for each predetermined analysis item. A data amount controller controls an amount of battery data to be stored in the battery data retention unit according to at least one analysis item selected by a user.
Resumen de: US20260245862A1
0000 The present disclosure provides a method (200) of manufacturing a graphite-based material for an electrode. The method (200) includes the steps of: shaping a block material comprising graphite into a raw material block; coating the raw material block with a second material, wherein the second material comprises carbon; and heating the coated raw material block to enable a graphitization of the coated raw material block to produce a carbon coated graphite-based material. The coated raw material block is heated to a temperature of greater than about 2600° C. in order to remove impurities. Such a process yields a graphite powder with a high purity content, of greater than about 99.95%. The present disclosure further provides an electrode made of the graphite-based material.
Resumen de: AU2024457934A1
The present application provides a battery pack mounting guide rail and an energy storage container. The battery pack mounting guide rail is applied to an energy storage container and comprises: a support portion; a connecting portion connected to the support portion and forming an L-shaped structure; and a first limiting portion protruding from the connecting portion and arranged opposite the support portion, wherein the support portion, the connecting portion and the first limiting portion together define a limiting cavity, and the limiting cavity is configured to limit and fix a battery pack.
Resumen de: US20260246068A1
A battery cell, a battery, and an electric device are disclosed. The battery cell includes a housing and a pressure relief component; the housing includes a first wall portion, and the pressure relief component is arranged on the first wall portion. The pressure relief component is provided with a first groove. The first groove is recessed from a first surface in a thickness direction of the first wall portion towards a second surface. The first groove defines at least one predetermined pressure relief area. The pressure relief component is configured to be capable of cracking along at least a portion of the first groove when the battery cell relieves pressure; where a sum S1 of areas of all the predetermined pressure relief areas is 0.03 to 0.3 times an area S2 of the first surface.
Resumen de: AU2024416703A1
An electrolyte of a lithium metal battery, a lithium metal battery, a battery, and an electrical apparatus. The electrolyte of the lithium metal battery comprises a main solvent, a diluent, and a lithium salt; the molar concentration of the lithium salt is 1 mol/L to 4 mol/L, and the viscosity of the electrolyte is less than or equal to 5.5 mPa⋅s. The cycle performance of the lithium metal battery can be improved.
Resumen de: US20260241434A1
0000 A bump preparation apparatus includes a bump preparation mechanism and a compacting mechanism that are sequentially arranged along a conveying direction of a first material, where the bump preparation mechanism is configured to prepare overpressed bumps on the first material, a height of each overpressed bump is greater than a height of a preset bump, the preset bump is a bump required by the first material, and the compacting mechanism is configured to apply a pressure to the overpressed bumps toward a main body portion of the first material, such that a thickness of the first material reaches a preset value.
Resumen de: AU2024418603A1
A positive electrode piece, comprising a current collector and a positive electrode active layer, the positive electrode active layer being arranged on at least one surface of the current collector; the positive electrode active layer comprises a first active layer directly coated on the current collector and a second active layer coated on the surface of the side of the first active layer away from the current collector; the first active layer comprises first lithium iron phosphate salt particles and/or first manganese iron phosphate salt particles, the second active layer comprises second lithium iron phosphate salt particles, the primary average particle diameter of the first lithium iron phosphate salt particles and/or the first manganese iron phosphate salt particles is 150 nm to 480 nm, and the primary average particle diameter of the second lithium iron phosphate particles is 500-3000 nm.
Resumen de: US20260245965A1
0000 An electrolyte for a lithium secondary battery is provided that can improve the initial discharge characteristics, lifetime characteristics and output characteristics, etc. of a lithium metal secondary battery, and a lithium metal secondary battery comprising the same. The electrolyte may include a lithium salt; a non-aqueous organic solvent; an organic anti-solvent, wherein a solubility of the lithium salt in the organic anti-solvent is at least 10 times lower than a solubility of the lithium salt in the non-aqueous organic solvent; and an additive including a fluorine-substituted ether compound.
Resumen de: US20260246074A1
Disclosed is a battery pack, which includes a plurality of battery modules; a pack tray having an open upper portion and an inner space accommodating the plurality of battery modules, the pack tray including a beam frame arranged between the battery modules adjacent to each other and partitioning the inner space; a pack cover covering the open upper portion of the pack tray; and a plurality of flame blocking units, each flame blocking unit connected to the beam frame and covering a corresponding battery module at a lower portion of the pack cover to block a flame emitted from the corresponding battery module.
Resumen de: US20260246030A1
0000 A pouch sealing device including a sealer configured to seal a sealing target region of one of a plurality of edge portions of a pouch in which an electrode assembly is accommodated, a cooler configured to cool a cooling target region of the pouch located between an internal space of the pouch in which the electrode assembly is accommodated and the sealing target region, and a controller configured to control the cooler to perform a pre-cooling mode in which the cooling target region is cooled and thereafter control the sealer to perform a sealing mode in which the sealing target region is heated.
Resumen de: US20260245880A1
0000 A positive electrode material is presented for a rechargeable electrochemical cell that comprises a negative electrode, a positive electrode, and an electrolyte. The positive electrode material comprises a compound with the general formula ζ-A
Resumen de: US20260245904A1
0000 Disclosed is an electrode composition including an electrode active material, a conductive material, and a binder, in which the binder is composed of a linear polymer and the pH is 5 or more and 7 or less when measured at 25° C., an electrode slurry including the same, an electrode, a lithium secondary battery, and a method for preparing the electrode composition. The electrode composition provides an advantage of simultaneously preventing the generation of hydrogen gas due to surface oxidation reactions during the preparation and storage of the polymer binder-containing electrode composition and/or electrode slurry while providing an advantage of achieving excellent adhesion strength by adjusting the pH of the polymer binder itself.
Resumen de: US20260246018A1
0000 Disclosed herein is a battery module including a plurality of battery cells and a cooling tube provided between the plurality of battery cells. The cooling tube including a cell attachment surface attached to the plurality of battery cells. A cooling channel through which a cooling medium for cooling the plurality of battery cells flows has a width of 1.7 mm to 1.8 mm in the stacking direction of the battery cells is formed inside the cooling tube.
Resumen de: US20260245977A1
0000 Provided are an electrode assembly, a battery cell, a battery, and an electrical device. The electrode assembly includes a first electrode plate, a second electrode plate, a first separator, and a second separator; the first separator, the first electrode plate, the second separator, and the second electrode plate are sequentially stacked and wound to form an integrated body; the second electrode plate and the first electrode plate have opposite polarities; the first electrode plate has a length end fixedly connected to at least one of the first separator and the second separator both the first separator and the second separator have a length end exceeding the length end of the first electrode plate and fixedly connected to each other.
Resumen de: US20260246002A1
A battery system including a plurality of subpacks and a lower case accommodating the plurality of subpacks therein. Each subpack includes: a lower housing in which a plurality of battery modules, electrical components, and input/output terminals are mounted; and a cooling block mounted in the lower housing. The lower housing has a double structure including: a first plate forming an outer surface of the lower housing and a second plate spaced apart from the first plate to form a venting space and forming an inner surface of the lower housing, and a slit is formed through the second plate.
Resumen de: WO2026171019A1
Provided in the present application are a composite binder, and an electrode sheet and a battery using same. The composite binder comprises a first binder, the first binder is a block polymer, and the first binder is prepared by means of a block reaction of polyvinylidene fluoride and a conjugated polymer, wherein the conjugated polymer comprises at least one of polyacetylene and polythiophene, and the mass content of polyvinylidene fluoride used for preparing the first binder is 50-90%.
Nº publicación: WO2026171024A1 20/08/2026
Solicitante:
BYD CO LIMITED [CN]
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Resumen de: WO2026171024A1
A composite current collector, electrode plate, battery cell, and method for preparing and testing a battery cell, relating to the technical field of composite current collectors. The composite current collector comprises a heating layer (100) and two metal layers (200), wherein the heating layer (100) is disposed between the two metal layers (200) and is connected separately to each of the metal layers (200), and a heating element is disposed within the heating layer (100). At least one metal layer (200) has a coating region on the side facing away from the heating layer, and a heating region of the heating element corresponds to the coating region. According to the composite current collector provided by the embodiments of the present application, heat is generated by the heating element to uniformly heat the heating layer, and is uniformly transferred to the coating region, such that the temperature distribution is uniform and the temperature difference at each location is small, thereby improving the performance and service life of the battery.
BOPI
Sede Electrónica
