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1724
resultados
Última actualización
23/03/2026 [07:26:00]
Resultados 450 a 475 de 1724
Resumen de: EP4712193A1
Provided in the present application are an electrolyte and the use thereof. The electrolyte comprises a first additive as shown in formula 1, vinylene carbonate and a boron-containing compound. Applying the electrolyte to a battery can not only reduce the content of PF<sub>5</sub> and HF in the electrolyte, but can also improve the electrochemical performance of the lithium-ion battery.
Resumen de: EP4712188A1
A secondary battery and a battery pack are disclosed. A secondary battery includes an electrode assembly including an electrode tab, a case in which the electrode assembly is accommodated, a connection member electrically connected to the electrode tab, a side terminal electrically connected to the connection member, a cap plate passing through the side terminal and coupled to an opening of the case, and an insulating part insulating the cap plate from the side terminal and insulating the cap plate from the electrode assembly.
Resumen de: EP4712216A1
A battery shell, a single battery cell, and a battery pack are provided. The battery shell includes: a battery shell body, wherein the battery shell body is provided with an opening; and a top cover body, wherein the top cover body is covered on the battery shell body at the opening, an end surface, facing the top cover body, of the battery shell body is defined as an upper end surface, and the upper end surface is divided into a first area and a second area located at an outer side of the first area towards an edge; the top cover body is assembled on the first area of the battery shell body, and a welding gap is formed between the second area of the battery shell body and an outer edge of the top cover body.
Resumen de: EP4712713A1
Provided is an integrally molded body that has a blocking layer for cutting off radio waves and magnetic waves. This integrally molded body comprises a fiber-reinforced resin layer containing reinforcing fibers and a first matrix resin, and a blocking layer, wherein the blocking layer contains an aggregate of metal strips and a second matrix resin, and blocks at least one of an electric field or a magnetic field, the metal strips being dispersed in the surface of the blocking layer to form the aggregate.
Resumen de: EP4712166A1
A low-oxygen-vacancy and high-performance lithium manganate positive electrode material. The oxygen vacancy amount thereof is in the range of 10-10,000 ppm after the lithium manganate positive electrode material is characterized by means of an electron paramagnetic resonance spectrum. A preparation method for the positive electrode material comprises the following steps: mixing an Li source compound, an Mn source compound and a compound containing a fluxing agent element, and performing primary calcination in an air atmosphere; and mixing the primary calcination product with a monovalent metal ion compound, performing secondary calcination in an air atmosphere at a temperature lower than that of the primary calcination, and cooling and crushing same to obtain the product. The oxygen vacancy amount of the obtained high-performance lithium manganate positive electrode material is reduced to 1080 ppm, and the Mn dissolution amount is reduced to 23 ppm, such that the high-temperature cycle performance and storage performance are greatly improved, and the product can be well used in the power terminal field of passenger vehicles, electric bicycles, electric tools, etc.
Resumen de: EP4712208A1
The present invention relates to recycling of used batteries, and more specifically, to a method for recovering main materials in used batteries through chemical discharge.
Resumen de: EP4712220A2
Aspects of embodiments of the present disclosure relate to pouch-type secondary batteries (100), press devices (150) for secondary batteries (100), and manufacturing methods (180) of secondary batteries (100). A pouch-type secondary battery (100) includes: an electrode assembly (110) including a stack of unit cells (112) including: a first electrode plate (114); a first electrode tab (116) on the first electrode plate (114); a second electrode plate (120); a second electrode tab (122) on the second electrode plate (120); and a separator (118) between the first electrode plate (114) and the second electrode plate (120); and a first tape (130, 132) attached to a front side of the electrode assembly (110) perpendicular to a stacking direction of the stack of unit cells (112). The first tape (130, 132) is located at a corner portion (138) of the electrode assembly (110) where the first electrode tab (116) or the second electrode tab (122) is located, and the corner portion (138) is located at an inclined area (128, A, A') where a thickness of the electrode assembly (110) decreases.
Resumen de: US2025006988A1
Described herein are slurries comprising a solid electrolyte material and an ester solvent, and methods of making the same.
Resumen de: EP4711739A1
A measuring apparatus for an electrode and/or a separator for a secondary battery according to one embodiment of the present disclosure includes a container including a body in which a specimen and an electrolyte can be stored inside, and a measuring unit for measuring physical properties of the specimen, wherein the specimen is at least one of an electrode and a separator for a secondary battery, and the measurement is performed under a state where the specimen is immersed with the electrolyte.
Resumen de: EP4712160A1
A positive electrode plate, a preparation method thereof, a secondary battery, and an electric apparatus are provided. The positive electrode plate includes a current collector and a positive electrode film layer disposed on at least one side of the current collector, where the positive electrode film layer includes a positive electrode active material, and the positive electrode active material includes a substrate and a carbon coating layer disposed on a surface of the substrate. The substrate has a general formula LizFexMn(1-x-y)MyPO4, where 1≤z≤1.1; 0.5≤x≤1; 0≤y≤0.1; and M is at least one selected from Ti, V, and Mg. At least a portion of the positive electrode active material includes primary particles, and a particle size distribution of primary particles having a primary particle size greater than 80 nm and less than or equal to 180 nm in the positive electrode active material is less than or equal to 10%; and there are no more than 15 primary particles having a primary particle size greater than 1500 nm in a region of (250±5) µm<2> in a cross section obtained by cutting an electrode plate prepared from the positive electrode active material. The primary particle size distribution concentration of the positive electrode active material in the positive electrode plate provided by this application is significantly improved, improving the cycling performance of batteries.
Resumen de: WO2024233691A1
In one aspect, a roll-to-roll vacuum coating system is provided. The roll- to-roll vacuum coating system includes a substrate, a first evaporation assembly, and a kiss roller assembly. The kiss roller assembly includes a kiss roller with a thermal conductivity of less than or equal to 30W/m-K, a second evaporation assembly, and at least one retractable roller.
Resumen de: EP4712199A1
A method of manufacturing a non-aqueous electrolyte secondary battery includes the steps of obtaining a battery assembly, charging, and sealing. The battery assembly includes an electrode body, a non-aqueous electrolyte solution, and a battery case including a through hole. The step of charging involves charging the battery assembly. The step of sealing involves sealing the through hole with a sealing member after the charging step. In the step of charging, the charging is performed under a charging condition that causes a temperature of a gas inside the battery case increases. The step of sealing is performed while keeping the temperature inside the battery case having been increased. After the step of sealing, the temperature inside the battery case decreases, and the gas inside the battery case contracts, to thereby cause a contraction and/or an internal pressure decrease of the battery case.
Resumen de: EP4712168A1
An object of the present invention is to provide a positive electrode active material for a sodium ion secondary battery which has a large discharge capacity and a high average operating voltage in the sodium ion secondary battery to be obtained. The positive electrode active material for a sodium ion secondary battery according to the present invention is a positive electrode active material for a sodium ion secondary battery, the material including a composite oxide represented by particular Formula (1), a crystalline structure of the composite oxide belongs to a space group R-3m, and in a diffraction chart obtained by performing X-ray diffraction measurement, a ratio of a peak strength of 003 reflection of the composite oxide to a peak strength of 104 reflection of the composite oxide is not less than 1.00.
Resumen de: MX2025012873A
A solid electrolyte material may include a first solid electrolyte material overlying at least a portion of a second solid electrolyte material. The first solid electrolyte material may include M<sub>a</sub>Me<sub>f</sub>O<sub>b</sub>X<sub>c</sub>, wherein M comprises an alkali metal, X comprises a halogen, 0⿤f⿤1, (a/b)>3, c=a+(kÿf)-2b, k is a valence of Me, and Me comprises a metal different from M. The second solid electrolyte material may include a halide.
Resumen de: CN121127392A
A method (500) performed by an electric vehicle controller (210) in which a vehicle (100) has a plurality of battery packs (110a, 110b, 110c, 110d), each having its own heating device (230) to individually adjust the respective battery pack temperature. The method (500) includes detecting when a temperature of the battery pack (110a, 110b, 110c, 110d) falls below a specified lower threshold level. Upon detection, the heating device (230) is allowed to provide heat to a different first set (105) of battery packs while not allowed to provide heat to a separate second set (107) of battery packs. This selective heating strategy occurs when it is found that the battery temperature is below the lower threshold level. A corresponding controller (210) and an electric vehicle (100) are also described.
Resumen de: EP4712191A1
The present disclosure relates to a compound for an electrolyte solution, a compound for an electrolyte solution additive, an electrolyte solution material, an electrolyte solution additive, an electrolyte solution for a secondary battery, and a secondary battery, and provides an electrolyte solution for a secondary battery, including a novel compound, or an isomer thereof.
Resumen de: EP4712182A1
A current collector (100A) includes a support portion (110), a first conductive layer (120), and a second conductive layer (130). The support portion (110) includes an electrically insulating resin composition. The support portion (110) includes a support layer (111) and an extension portion (112). The first conductive layer (120) is in contact with the support layer (111) on a first side in a thickness direction (DT) of the support layer (111). The second conductive layer (130) is in contact with the support layer (111) on a second side in the thickness direction (DT). The extension portion (112) extends from the support layer (111) in an orthogonal direction (DO) orthogonal to the thickness direction (DT).
Resumen de: EP4712164A1
The present application relates to a negative electrode active material, a method for preparing the negative electrode active material, a negative electrode composition, a negative electrode for a lithium secondary battery including the same, and a lithium secondary battery including the negative electrode.
Resumen de: EP4712157A1
A negative electrode may include a first negative electrode active layer and a second negative electrode active layer on a negative electrode current collector. An orientation index (O.I.) of each of the negative electrode active layers may satisfy a predetermined range, and thus adhesion of the negative electrode active layers to the negative electrode current collector is highly implemented, thereby having excellent lifespan characteristics. In addition, a secondary battery including the same has excellent output characteristics and can be charged in a short time even at a 1C-rate.
Resumen de: EP4711789A1
A battery diagnosis apparatus includes an information obtaining unit configured to obtain current and voltage data of each of a plurality of battery cells and a controller configured to determine a target period based on a current of each of the plurality of battery cells, calculate at least one parameter value of an equivalent circuit model by using the voltage data of each of the plurality of battery cells, corresponding to the target period, and diagnose a state of each of the plurality of battery cells, based on the at least one parameter value.
Resumen de: EP4712296A1
The present invention relates to a cell balancing method and a battery system employing same. The battery system of the present invention comprises: a battery including a plurality of battery cells; a monitoring unit for performing a first low-power mode and a second low-power mode, wherein, in the first low-power mode, wakeup is executed every short term period and cell balancing is performed on each of the plurality of battery cells on the basis of a predetermined first cell balancing execution condition, and in the second low-power mode, if a period extension condition is satisfied, wakeup is executed every long term period that is longer than the short term period by a predetermined period, and cell balancing is performed on each of the plurality of battery cells on the basis of a second cell balancing execution condition; and a control unit for, if a low-power mode entry condition is satisfied, indicating the monitoring unit to enter the first low-power mode, and then entering a sleep mode in which a preconfigured operation is not performed.
Resumen de: EP4712192A1
The present invention provides a nonaqueous electrolyte solution which, when used in a nonaqueous electrolyte secondary battery containing Si and/or silicon oxide as a negative electrode active material, can exhibit at least one of improvement of a capacity retention rate after cycles and reduction of the amount of generated gas during high temperature storage in the nonaqueous electrolyte secondary battery. A nonaqueous electrolyte solution contains (I) a nonaqueous organic solvent; (II) a solute that is an ionic salt; and (III) a compound represented by formula (1) or a compound represented by formula (3). (3): PO(OR4)y(OR5)3-y. In formula (1), for example, each R1 is independently a hydrogen atom, a halogen atom, a linear alkyl group having 1-12 carbon atoms or a branched alkyl group having 3-12 carbon atoms. In formula (3), each R4 independently represents an alkenyl group or an alkynyl group; R5 represents an alkyl group or an aryl group; and y is an integer of 2-3.
Resumen de: EP4712190A1
The present disclosure relates to a compound for an electrolyte solution, a compound for an electrolyte solution additive, an electrolyte solution material, an electrolyte solution additive, an electrolyte solution for a secondary battery, and a secondary battery, and provides an electrolyte solution for a secondary battery, including a novel compound, or an isomer thereof.
Resumen de: EP4710776A1
The present invention provides a skin formation module comprising: a drum that is rotatably installed; a heating unit for supplying heat to the drum; and a batter spray unit for spraying batter onto the outer circumferential surface of the drum. The present invention also provides a spring roll manufacturing apparatus including the skin formation module, a cutting module, a powder module, a stuffing module, a folding module, a rolling module, and a conveyor belt that passes through each module.
Nº publicación: EP4712165A1 18/03/2026
Solicitante:
OCI CO LTD [KR]
OCI Company Ltd
Resumen de: EP4712165A1
The present invention relates to a silicon-carbon composite for a negative electrode material of a secondary battery and a method for manufacturing same and, more specifically, to a silicon-carbon composite for a negative electrode material of a secondary battery and a method for efficiently manufacturing the same, wherein when applied as a negative electrode material, the silicon-carbon composite for a negative electrode material of a secondary battery is capable of improving characteristics of a secondary battery by minimizing a volume change of silicon particles during charging and discharging processes of a secondary battery.
BOPI
Sede Electrónica
