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1802
resultados
Última actualización
14/10/2025 [07:10:00]
Resultados 1600 a 1625 de 1802
Resumen de: EP4625515A1
This application provides a positive electrode plate, a secondary battery (5), and an electrical device. Particularly, this application provides a positive electrode plate, including a positive current collector and a positive electrode film layer. The positive electrode film layer is disposed on at least one surface of the positive current collector. The positive electrode film layer includes a first positive electrode film layer and a second positive electrode film layer. The first positive electrode film layer is located between the positive current collector and the second positive electrode film layer. The first positive electrode film layer includes a first positive active material. A specific surface area of the first positive active material is 12 m<sup>2</sup>/g to 16 m<sup>2</sup>/g. Based on a total mass of the first positive active material, a carbon content of the first positive active material is 1.0 wt% to 1.5 wt%. The second positive electrode film layer includes a second positive active material. A specific surface area of the second positive active material is 6 m<sup>2</sup>/g to 19 m<sup>2</sup>/g. Based on a total mass of the second positive active material, a carbon content of the second positive active material is 1.1 wt% to 2.1 wt%.
Resumen de: EP4625519A1
An all-solid-state energy storage device according to an aspect of the present invention includes a positive electrode that includes a positive active material layer, the positive active material layer containing a sulfur-based active material, conductive carbon, a sulfide solid electrolyte, and a binder, and the positive active material layer having a content of the binder of 0.1 mass% or more and less than 2.0 mass%.
Resumen de: EP4625630A2
The present invention relates to a pouch film of a secondary battery, the pouch film comprising: an inner layer; a metal layer stacked above the inner layer; and an outer layer which is stacked above the metal layer and in which colored dye particles are mixed. When forming of the pouch film, the concentration of the dye particles in a section B, in which the elongation occurs, becomes lower than that in a section A in which the elongation does not occur, as a result, the color concentration of the outer layer in the section B, in which the elongation occurs, becomes lighter and is mixed with the color of the metal layer stacked below the outer layer, thus, the color of the outer layer in the elongation occurrence section B changes.The present invention relates also to a pouch case of a secondary battery.
Resumen de: EP4625579A1
Set forth herein are compositions comprising A·(LiBH4)·B·(LiX)·C·(LiNH2),wherein X is fluorine, bromine, chloride, iodine, or a combination thereof, andwherein 0.1≤A≤3, 0.1≤B<4, and 0≤C≤9 that are suitable for use as solid electrolyte separators in lithium electrochemical devices. Also set forth herein are methods of making A·(LiBH4)·B·(LiX)·C·(LiNH2) compositions. Also disclosed herein are electrochemical devices which incorporate A ·(LiBH4)·B·(LiX) ·C ·(LiNH2) compositions and other materials.
Resumen de: MX2025010755A
The present invention provides an electrolyte additive, a lithium secondary battery electrolyte comprising same, and a lithium secondary battery. Specifically, the present invention can provide: a lithium secondary battery electrolyte including an electrolyte additive containing a compound that is represented by formula 1, does not easily decompose in a negative electrode, and can effectively inhibit positive electrode degradation, thus making it possible to achieve excellent high-temperature storage characteristics and high-temperature cycle characteristics; and a lithium secondary battery comprising same.
Resumen de: MX2025010294A
The present application belongs to the field of batteries. Disclosed are a battery pack self-heating system and method. The system comprises: a target battery pack, which comprises a plurality of battery sub-packs and is used for providing electric energy; an energy storage module, which is used for storing the electric energy released by the target battery pack and charging the target battery pack by means of the stored electric energy; a charging and discharging switch group, which is used for controlling the opening and closing of a charging and discharging loop between the target battery pack and the energy storage module; a measurement module, which is used for measuring the voltage of each battery sub-pack, the voltage of the energy storage module and the battery temperature of the target battery pack; and a control module, which is connected to both the measurement module and the charging and discharging switch group, and is used for controlling the charging and discharging switch group on the basis of the voltages of the plurality of battery sub-packs, the voltage of the energy storage module and the battery temperature of the target battery pack, so as to realize the charging and discharging between the target battery pack and the energy storage module. In the present application, the self-heating of a target battery pack is realized by means of the charging and discharging between the target battery pack and an energy storage module, thereby improving the battery pa
Resumen de: MX2025010264A
Disclosed are an electrode production apparatus, battery cells comprising the electrodes produced thereby, and battery packs and vehicles comprising the battery cells. The electrode production apparatus according to an embodiment of the present invention comprises: a transport member for transporting an electrode foil coated with electrode active material; a laser member for emitting laser toward the electrode foil; a jig member for supporting the electrode foil, being disposed so as to be in contact therewith; and a foreign substance-blocking member for blocking foreign substances, generated when emitting laser, from entering a predetermined portion of the electrode foil.
Resumen de: MX2025011232A
The present invention relates to a battery pack. The battery pack comprises one or more battery modules (100). Each of the one or more battery modules (100) comprises one or more battery cells (106). Each of the one or more battery modules (100) is provided with a Printed Circuit Board (102) and one or more Battery Management Modules (104) of a Battery Management System (BMS). The Printed Circuit Board (102) is arranged on the battery module (100) and the one or more Battery Management Modules (104) are mounted on the Printed Circuit Board (102). The technical problem of efficiently mounting the Printed Circuit Board (102) and the one or more Battery Management Modules (104) in high voltage battery packs is solved by the present invention.
Resumen de: MX2025011104A
The present invention relates to a positive electrode in which a positive electrode mixture layer comprising a single particle-type positive electrode active material and a point-type conductive material is disposed on a current collector, and which has a rolling index of 0.01 to 1.00, the rolling index having, as factors, a single particle fraction of a single particle-type lithium nickel-based oxide, a bulk density of a point-type conductive material, a BET specific surface area, and an oil absorption number. The positive electrode has low porosity and high rolling density, and thus can provide a lithium secondary battery having excellent energy density.
Resumen de: MX2025011097A
The present invention relates to a silicon carbon composite, a negative electrode active material comprising same, a negative electrode composition, a negative electrode, a lithium secondary battery, a battery module, and a battery pack, the silicon carbon composite having, in a <sup>29</sup>Si-MAS-NMR spectrum, a peak A within a chemical shift value range of 20 ppm to -15 ppm, a peak B within a chemical shift value range of -20 ppm to -100 ppm, and, in a <sup>29</sup>Si-MAS-NMR spectrum, a peak C within a chemical shift value range of -110 ppm to -140 ppm.
Resumen de: MX2025010133A
The present invention relates to a method for recycling a positive electrode active material and a positive electrode active material recycled thereby and, more specifically, the present invention can provide a method for recycling a positive electrode active material and a positive electrode active material recycled thereby, the method comprising the steps of: thermally treating a waste positive electrode, including a current collector and a positive electrode active material layer formed on the surface thereof, under an oxidative atmosphere to recover a positive electrode active material; adding a coating agent to the recovered positive electrode active material, followed by firing under a reductive atmosphere, to convert a trivalent iron compound in the positive electrode active material into a divalent iron compound and convert polycrystalline particles into a single-crystal cathode active material, while forming a coating layer on the surface of the positive electrode active material; and milling the positive electrode active material, which has the coating layer formed thereon and has undergone conversion into the divalent iron compound, to control the particle size of the positive electrode active material, so that during the recycling process, synthesis into a single crystal structure is achieved along with the conversion of trivalent iron into divalent iron to eliminate the remaining of trivalent iron inside the recycled positive electrode active material, thereby pr
Resumen de: MX2025010138A
Disclosed are an electrode production apparatus, battery cells comprising the electrodes produced thereby, and battery packs and vehicles comprising the battery cells. The electrode production apparatus according to an embodiment of the present invention comprises: a transport member for transporting an electrode foil coated with electrode active material; a laser member for emitting laser toward the electrode foil; and a jig member for supporting the electrode foil, being disposed so as to be in contact therewith, wherein the jig member is provided with a foreign substance adhesion prevention unit.
Resumen de: MX2025010162A
Disclosed are a battery diagnosis method and a battery diagnosis apparatus. The battery diagnosis method according to the present invention comprises the steps of: executing a procedure of intermittent application of electrical stimulation to a battery cell; acquiring state history data of the battery cell corresponding to a state change period until the electrical state of the battery cell reaches a second state from a first state by the procedure of intermittent application; on the basis of the state history data, generating a measured full cell profile indicating the correspondence between the capacity and voltage of the battery cell; and analyzing the measured full cell profile to generate first diagnosis information including at least one diagnosis factor associated with the charge/discharge performance of the target cell.
Resumen de: MX2025010262A
The present invention relates to a lithium secondary battery, a battery module, and a battery pack. The lithium secondary battery comprises: a positive electrode including a positive electrode active material; a negative electrode including a negative electrode active material; a separator disposed between the positive electrode and the negative electrode; and an electrolyte, wherein the positive electrode active material includes a lithium composite transition metal compound containing nickel (Ni), cobalt (Co), and manganese (Mn), the lithium composite transition metal compound contains single particles, the negative electrode active material includes a silicon oxide, and the grain size of Si in the silicon oxide is at most 10% of the grain size of the lithium composite transition metal compound.
Resumen de: MX2025011094A
The present invention relates to: a silicon-carbon composite having peak A with a chemical shift in the range of 20 ppm to -15 ppm in the <sup>29</sup>Si-MAS-NMR spectrum, peak B in the range of -20 ppm to -100 ppm, and peak C with a chemical shift in the range of -110 ppm to -140 ppm in the <sup>29</sup>Si-MAS-NMR spectrum; and a negative electrode active material, a negative electrode composition, a negative electrode, a lithium secondary battery, a battery module; and a battery pack which include the silicon-carbon composite.
Resumen de: MX2025011093A
The present invention relates to a separator substrate, a separator, an electrode assembly, and an electrochemical device. According to one embodiment of the present invention, the separator substrate has a surface roughness value (Sa) within a predetermined range. Accordingly, the adhesive strength of a separator using the separator substrate is well maintained, and the resistance characteristics of the separator are improved by reducing the amount of slurry impregnated during the formation of a porous coating layer.
Resumen de: MX2025011174A
The present application discloses a prismatic battery and a welding method. The prismatic battery comprises: a cover plate, the cover plate being provided with poles; a core package, the core package being provided with tabs, and the tabs and the poles being directly connected by means of laser welding. The energy transmission path of the battery is constructed, and the charging and discharging functions of the core package are implemented. Moreover, since the tabs on the core package in the prismatic battery are directly connected to the poles on the cover plate, auxiliary welding pieces and connecting pieces are omitted, thereby improving the internal space utilization rate and the gravimetric energy density of the prismatic battery.
Resumen de: MX2025011075A
A vehicular battery case 100 includes: an under cover 140 which is a tray-shaped press-molded article, which has a housing part 141 for housing a battery, and in which a lower surface 142 of the housing part 141 is provided with lower surface raised parts 143 extending from the front end to the rear end thereof in the vehicle longitudinal direction and being raised upward; and lower surface longitudinal reinforcing members 160 that, below the under cover 140, extend in the vehicle longitudinal direction from the front end to the rear end of the under cover 140 along the lower surface raised parts 143 and are arranged so as to be at least partially housed in the lower surface raised parts 143.
Resumen de: MX2025010263A
The present application relates to an anode slurry preparation method comprising the steps of: mixing an anode active material, a conductive material, a (meth)acrylic binder and a first solvent, thereby obtaining a mixture; measuring the initial pH of the mixture; if the initial pH of the mixture deviates from a target pH range, adjusting the amount of a second solvent containing a pH adjuster and mixing same so that the pH comes within the target pH range; and obtaining the mixture with the pH in the target pH range. Therefore, hydrogen gas generation is prevented to reduce the risk of explosion without harming the components of the anode slurry.
Resumen de: MX2025010257A
Embodiments described herein relate to recycling of spent lithium battery material. In some aspects, a method can include suspending a lithium source in a solvent containing an oxidation reagent to extract lithium, forming an extracted lithium solution, separating the extracted lithium solution from residual solids of a lithium source, purifying the extracted lithium solution by precipitating and filtering impurities, and precipitating the lithium in the purified lithium solution to generate lithium carbonate (Li<sub>2</sub>CO<sub>3</sub>). In some embodiments, the method can further include preprocessing the lithium source to improve kinetics of the lithium extraction. In some embodiments, the preprocessing can include a cutting or shredding step to downsize the lithium source. In some embodiments, the lithium source can include lithium-ion battery waste. In some embodiments, the oxidation reagent can include sodium persulfate (Na<sub>2</sub>S<sub>2</sub>O<sub>8</sub>), potassium persulfate (K<sub>2</sub>S<sub>2</sub>O<sub>8</sub>), ammonium persulfate (NH<sub>4</sub>)<sub>2</sub>S<sub>2</sub>O<sub>8</sub>, hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>), ozone (O<sub>3</sub>), and/or nitrous oxide (N<sub>2</sub>O).
Resumen de: MX2025007684A
Provided are an inspection device and an inspection method for battery cell inspection. The inspection device comprises a supporting mechanism, a rotating mechanism, a conveying mechanism and an inspection mechanism. The rotating mechanism is arranged on the supporting mechanism and comprises a rotating support and a rotating disc, wherein the rotating support is arranged on the supporting mechanism, and the rotating disc can circumferentially rotate relative to the rotating support; the conveying mechanism comprises two reciprocating conveyor belts arranged on two sides of the rotating disc, respectively, and the reciprocating conveyor belts are suitable for carrying battery cells to enter or leave an inspection zone; and the inspection mechanism is arranged on the rotating disc and comprises a ray source and a detector, wherein the ray source and the detector are suitable for inspecting the battery cells on the conveying mechanism, and the ray source and the detector are suitable for circumferentially rotating on the rotating disc.
Resumen de: MX2025011022A
A battery diagnosis apparatus, a battery pack, an electric vehicle and a battery diagnosis method are provided. The battery diagnosis apparatus comprises: a sensing unit for acquiring capacity-voltage relationship data of a battery cell; and a control circuit for generating a Q-V profile, a normalized Q-V profile and a Q-dV/dQ profile on the basis of the capacity-voltage relationship data. The control circuit determines, on the basis of a cut-off reference point detected in the Q-dV/dQ profile, a characteristic parameter of the Q-V profile of interest, which is a high-capacity side portion of the normalized Q-V profile. The control circuit determines at least one degradation parameter on the basis of the characteristic parameter of the profile.
Resumen de: MX2025010968A
Li-bearing slags are typically produced when Li-batteries or their waste are recycled on a smelter. The Li recovery process comprises the steps of: - powdering the metallurgical slag to a particle size distribution having a D50 of less than 100 µm; - contacting, in an aqueous medium, the Li-containing metallurgical slag, and an alkaline Ca-compound, provided in amounts selected to obtain a molar ratio of the Ca in the Ca-compound to Li in the slag of at least 0.75, thereby obtaining a suspension; - heating the suspension to a temperature of more than 80 °C for at least 30 min, thereby obtaining a leached suspension; and, - separating solids from liquids in the leached suspension, thereby obtaining a leach solution containing a major part of the Li, and a solid residue containing Ca. This alkaline leaching process allows for a straightforward recovery of battery-grade LiOH from the leach solution, while consuming less reagents than known acidic leaching processes.
Resumen de: MX2025010925A
The present invention relates to a process for the concentration of lithium in metallurgical fumes wherein a metallurgical charge is smelted, thus obtaining a molten bath comprising a slag phase and optionally an alloy phase and fuming the lithium from the molten slag, by addition of a halogen intermediate, wherein said halogen intermediate is a gaseous halogen or gaseous halogen compound.
Nº publicación: MX2025011072A 01/10/2025
Solicitante:
LG ENERGY SOLUTION LTD [KR]
LG ENERGY SOLUTION, LTD
Resumen de: MX2025011072A
Disclosed are an electrode production device, a battery cell comprising electrodes produced by using same, and a battery pack and vehicle comprising battery cells. An electrode production device according to an embodiment of the present invention, which produces electrodes by transferring an electrode foil having a coating layer formed thereon, comprises: a transfer member for transferring an electrode foil having a coating layer formed thereon; a fluid spray member for spraying a fluid toward the electrode foil to prevent wrinkles from being generated on the electrode foil; and a fluid supply member coupled to the fluid spray member and supplying a fluid to the fluid spray member.
BOPI
Sede Electrónica
