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1102
resultados
Última actualización
29/08/2026 [07:33:00]
Resultados 875 a 900 de 1102
Resumen de: WO2026170955A1
The present application provides a lithium-ion secondary battery, an electrolyte, a battery cell, and an electric device. The lithium-ion secondary battery comprises an electrolyte; the electrolyte comprises a lithium salt, a first additive, and an organic solvent; the lithium salt comprises lithium hexafluorophosphate; the first additive comprises 1,3-propane sultone; the organic solvent comprises a first solvent; and the relative dielectric constant of the first solvent is greater than or equal to 30. The lithium-ion secondary battery has a relatively high cycle capacity retention rate.
Resumen de: WO2026170897A1
The present application relates to a battery cell, a battery device and an electric apparatus. The battery cell comprises an electrode assembly (120). The electrode assembly (120) comprises a plurality of electrode sheets (121) and a separator (122). The plurality of electrode sheets (121) are stacked in a first direction (F1). Each electrode sheet (121) comprises a main body portion (1211) and a tab (1212) arranged on one side of the main body portion (1211), wherein the main body portion (1211) has a central region (z1) and an edge region (z2) arranged around the central region (z1). The separator (122) comprises a plurality of first portions (1221), and a second portion (1222) other than the first portions (1221). The first portions (1221) are configured to be permeable to ions, and the second portion (1222) is configured to block ions. The first portions (1221) are provided on the two sides of the main body portions (1211) that are located in the first direction (F1), the second portion (1222) covers at least part of the edge regions (z2) of the main body portions (1211), and the tabs (1212) extend out of the separator (122).
Resumen de: US20260245894A1
A negative electrode includes a current collector and an active material layer, wherein the active material layer includes carbon material particles and metal sulfide particles, wherein the metal sulfide includes at least one selected from the group consisting of Ag2S, MnS, and GeS, and a lithium-ion secondary battery comprising the negative electrode are described.
Resumen de: US20260245887A1
0000 A cathode material satisfying at least one of 1.58≥del_PD_absolute≥1, 0.3≥del_PD≥0.2, 0.21≥del_inclination≥0.15, or (1−del_PD)/EMD≥10.1. 0000 In the above equations, del_PD_absolute is an absolute value difference between an ideal value and a measured value of rolling density when a load is 9,000 kgf, del_PD is a normalized value difference between an ideal value and a measured value of rolling density when a load is 9,000 kgf, del_inclination is an inclination difference between an ideal value and a measured value of rolling density at a load of 0 to 9,000 kgf, and del_PD is a normalized value difference between an ideal value and a measured value of rolling density when a load is 9,000 kgf. The EMD (Earth Mover's Distance) is a value obtained using SciPy's Wasserstein_distance function (u_values=particle distribution before rolling, v_values=particle distribution after rolling, u_weights=none, v_weights=none).
Resumen de: US20260245962A1
0000 Provided are a non-aqueous electrolyte solution for a lithium secondary battery, which includes a compound represented by Formula 1, a lithium salt, and an organic solvent; and a lithium secondary battery including the same:
0000
0000 wherein all the variables are described herein.
Resumen de: US20260246025A1
ABSTRACT: A battery pack (10) includes a battery module (100), a module housing body (300) that accommodates the battery module (100), a gas discharge portion (400) to discharge gas discharged from the battery module (100) out of the module housing body (300), and an upper heat-resistant sheet (610) and a lower heat-resistant sheet (620) that are at least partially disposed around a communication space (350) that communicates with the battery module (100) and the gas discharge portion (400) inside the module housing body (300).
Resumen de: US20260246076A1
0000 The present disclosure provides a structure of a battery pack including a plurality of battery modules in a widthwise direction thereof. Each of the plurality of battery modules include: an end plate comprising at least a portion of a rear surface of the battery module; and a rear cover connected to a rear end of the battery module, the rear cover having open front end and made of a heat-resistant material. The rear cover includes a pair of partition plates extending in rear direction from two widthwise ends of a rear end of the battery module; and a venting hole facing an upward direction.
Resumen de: US20260246093A1
0000 An alkaline battery including a battery case having a bottomed cylindrical shape; a negative electrode terminal plate and a gasket; a positive electrode, a negative electrode, a separator, an electrolyte, and a resin sheet that are housed in the battery case. The positive electrode has a cylindrical shape and a first end surface on the negative electrode terminal plate side and a second end surface opposite to the first end surface. The separator includes a cylindrical portion. The resin sheet is annularly disposed along the cylindrical portion on the inner side of the first end surface. The resin sheet has a width W1 from a position facing the first end surface to the negative electrode terminal plate side and a width W2 from the position facing the first end surface to the second end surface side, each not less than 1.0 mm and not more than 3.0 mm.
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: US20260245959A1
0000 A secondary battery support that employs a configuration where a plurality of layers formed including at least one type selected from paper and a non-woven fabric are laminated and integrated, and can reduce an internal resistance of a solid electrolyte layer.
Resumen de: US20260245905A1
0000 A power storage device binder aqueous solution includes a polyamic acid and water. The polyamic acid includes an aliphatic diamine unit. The polyamic acid is an amine salt.
Resumen de: US20260246061A1
In the present invention, a cylindrical battery comprises: an electrode; an electrolyte; a bottomed cylindrical outer casing can that accommodates the electrode and the electrolyte; a seal that closes off an opening of the outer casing can; and an upper insulating plate that is disposed in between the electrode and the seal. The seal is provided with a safety valve. The upper insulating plate includes a base material having a through hole, and a film that blocks the through hole. The film is constituted from a thermoplastic resin that melts at a lower temperature than the base material does.
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: US20260245984A1
Described herein is a coated battery separator where the coating is provided on one or both sides of the battery separator. The coating comprises polytetrafluoroethylene (PTFE) particles and the coating is an outermost coating layer. In some cases, the coating may also comprise ceramic particles.
Resumen de: US20260246070A1
A power supply device includes secondary battery cells, an inner case accommodating the secondary battery cells therein, and an outer case covering the inner case. The inner case includes first and second plates constituting a side wall of the inner case. The first and second plates form a stacked part of the side wall in which the first and second plates are stacked on each other. The first plate has groove-shaped recesses in a surface thereof facing the second plate. Each of the groove-shaped recesses has a cut end at one end of the each of the groove-shaped recesses cut in a direction intersecting an extending direction of the groove-shaped recesses, the cut end constituting a first opening. The second plate forms a tubular exhaust duct in a part of the second plate stacked on the first plate by closing the one end of the each of the groove-shaped recesses where the first opening of the each of the groove-shaped recesses is formed. The second plate constitutes a second opening at another end of the each of the groove-shaped recesses opened and unclosed by the second plate. The exhaust duct communicates with an inside and an outside of the inner case via the first opening and the second opening.
Resumen de: US20260246079A1
0000 Provided in the present application are a separator, a battery cell, a battery and an electrical apparatus. The separator includes a separator body and a polymer layer disposed on at least one surface of the separator body, wherein the polymer layer includes a fluoropolymer, the crystallinity of the fluoropolymer as measured by using a differential scanning calorimetry method is X
Resumen de: US20260246000A1
A method for producing recycled graphite, a recycled graphite, and a battery, includes the steps of providing a reclaimed graphite concentrate including any one or more of carboxymethyl cellulose and styrene-butadiene rubber, pre-treating the reclaimed graphite concentrate by subjecting the reclaimed graphite concentrate to an oxidizing environment at a temperature in the range 250-380° C., thereby reducing the total concentration of carboxymethyl cellulose and styrene-butadiene rubber to less than 0.25%, and thermally treating the pre-treated reclaimed graphite concentrate by subjecting the pre-treated reclaimed graphite concentrate to a non-oxidizing environment at a temperature of at least 2300° C.
Resumen de: US20260245911A1
0000 An alkaline dry battery includes a positive electrode which has a cylindrical shape and which is disposed in a battery case, a gelled negative electrode containing zinc powder and filled in a hollow portion of the positive electrode, and a separator disposed between the positive electrode and the negative electrode. The separator has a total air permeability within a range of 1.5 to 8.7 cc/cm<2>·s. The negative electrode contains a sulfate salt within a range of 0.01 to 0.5% by mass with respect to mass of the negative electrode in terms of sulfate ions.
Resumen de: US20260246088A1
0000 A separator for an alkaline dry battery is disposed between a positive electrode and a negative electrode containing zinc in the alkaline dry battery which includes the positive electrode, the negative electrode, and an electrolytic solution. The separator includes a sulfate salt within a range of 0.08 mg or more and 1.7 mg or less in terms of sulfate ions per 1 cm<2 >of a facing area of the positive electrode and the negative electrode.
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.
Nº publicación: US20260245898A1 20/08/2026
Solicitante:
CONTEMPORARY AMPEREX TECH CO LIMITED [CN]
CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Resumen de: US20260245898A1
0000 Provided are a positive electrode active material and a preparation method therefor, a positive electrode sheet, a battery, and an electric device. The positive electrode active material comprises Na<4-a>AFe<3-c>B
BOPI
Sede Electrónica
