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1601
resultados
Última actualización
20/03/2026 [07:15:00]
Resultados 100 a 125 de 1601
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: 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: EP4711187A1
An electric battery pack (1) comprises a plurality of electric battery groups. Each group comprises a plurality of battery cells (4), arranged side by side along a first horizontal direction (X). The different groups of battery cells (4) are arranged in at least one row along a second horizontal direction (Y) orthogonal to the first horizontal direction (X). The battery pack (1) is configured to receive a flow of a temperature-regulating liquid that passes through the battery pack (1) so as to come into direct contact with the battery cells (4). A system for distributing the temperature-regulating liquid includes a longitudinal feeding channel (6) and a plurality of transverse channels (7) extending beneath each group of battery cells (4) along said first horizontal direction (X). The transverse channels (7) are defined by a lower support structure (5) on which the battery cells (4) are supported and including a lower wall (50), an upper wall (51) parallel to and spaced above the lower wall (50) and formed integrally, or rigidly connected, with said lower wall (50), and a plurality of internal ribs (5B) parallel to and spaced apart from each other extending along the first horizontal direction (X) between the lower wall (50) and the upper wall (51). Each transverse channel (7) has a closed cross-section, defined by the lower wall (50), the upper wall (51), and two of the internal ribs (5B) of the lower support structure (5). In the upper wall (51) of the lower support structu
Resumen de: EP4712231A2
A battery module includes a housing (100), a plurality of battery cells (200), each of which includes an electrode assembly (210), a case (220) accommodating the electrode assembly (210), a cap plate (230) sealing the case (220), a pair of terminals (240) protruding from the cap plate (230), and a vent (250) between the terminals (240). The plurality of battery cells (200) is arranged in the housing (100) in a first direction. The battery module further comprises a holder (300) in the housing (100) and facing the cap plate (230), and an inner sheet (400) between the cap plate (230) and the holder (300) to cover the vent (250).
Resumen de: EP4712224A1
A cap assembly includes a terminal part to be electrically connected to an electrode plate of an electrode assembly, a laser-transmissive glass part arranged above an area at where a current collection member that electrically connects an electrode plate of the electrode assembly and the terminal part and the electrode assembly are combined, and a cap plate having a terminal opening with which the terminal part is combined and a glass opening with which the glass part is combined that is combined with a case that accommodates the electrode assembly.
Resumen de: EP4712252A1
An electrode assembly according to the present disclosure includes a positive electrode plate, a negative electrode plate, a separator positioned between the positive electrode plate and the negative electrode plate, and an electrode tab electrically connected to the positive electrode plate. The electrode tab includes a first metal and a second metal that at least partially surrounds the first metal.
Resumen de: EP4712214A1
A battery assembly according to certain embodiments of the present disclosure includes: a battery cell stack in which a plurality of battery cells are stacked; a frame that houses the battery cell stack and includes a first side surface part, a second side surface part, a ceiling part, and a bottom part; and an inlet and an outlet for circulating a coolant inside the frame. The coolant is flowed into the inside of the frame through the inlet, and discharged through the outlet. Pad members are disposed on at least at one place between the battery cells, and at least one of the pad members extends from the ceiling part to the bottom part of the frame.
Resumen de: EP4712225A1
The present disclosure is directed to providing a secondary battery with fewer limitations on shape and improved battery capacity, and for preventing problems caused by gas produced during charging and discharging. The secondary battery according to an embodiment of the present disclosure includes an electrode assembly including a plurality of electrodes and a separator stacked parallel to each other, a sheet-type outer packaging having an internal space for accommodating the electrode assembly, and an outer packaging opening configured to communicate the internal space with an outside, and a cap configured to cover the outer packaging opening of the sheet-type outer packaging, wherein a height of the cap in a stack direction of the electrodes and the separator is larger than a height of the electrode assembly.
Resumen de: EP4712246A1
A battery pack according to certain embodiments of the present disclosure comprises: at least one battery assembly including a plurality of battery cells; and a pack housing that houses the at least one battery assembly, wherein a plurality of venting channels extending along one direction are formed inside a bottom frame of the pack housing, wherein a venting hole communicating with the venting channel is formed on a lower surface of the battery assembly, and wherein the venting channels each have independent venting flow paths that are not shared with each other.
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: 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: 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: 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: 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: 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: 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.
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.
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: 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: 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: EP4711333A1
The present invention relates to a silicon-carbon composite for an anode material of a secondary battery and a method for manufacturing same and, more specifically, to a silicon-carbon composite for an anode material of a secondary battery and a method for manufacturing same, wherein when applied as an anode material, the silicon-carbon composite is capable of improving characteristics of a secondary battery by minimizing a volume change of silicon particles during charging and discharging processes of the secondary battery.
Nº publicación: EP4712146A1 18/03/2026
Solicitante:
LG ENERGY SOLUTION LTD [KR]
LG Energy Solution, Ltd
Resumen de: EP4712146A1
Disclosed are an electrode sheet machining apparatus having a plurality of detection members and an electrode sheet machining method using the same, and more particularly an electrode sheet machining apparatus including an unwinder unit configured to supply an electrode sheet, a notching unit configured to notch the electrode sheet, a drying unit configured to dry the notched electrode sheet, a rewinder unit configured to wind the dried electrode sheet, and a second detection member located between the drying unit and the rewinder unit, configured to inspect a state of the electrode sheet prior to winding, and an electrode sheet machining method using the same.
BOPI
Sede Electrónica
