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1568
resultados
Última actualización
08/11/2025 [07:55:00]
Resultados 400 a 425 de 1568
Resumen de: EP4645401A1
The present application provides a battery, the preparation of a battery, and a powered device. The battery includes a negative electrode plate that includes a negative electrode current collector and an active layer. The active layer is located on at least one surface of the negative electrode current collector. The active layer includes an active substance, a gel electrolyte, and a liquid electrolyte. An expansion rate of the negative electrode plate is greater than or equal to 10%. When the active substance expands during cycling, the gel electrolyte can stably fix the liquid electrolyte in the negative electrode plate, thereby reducing the risk of squeezing-induced leakage of a liquid electrolyte solution due to the expansion of the active substance. Thus, the negative electrode plate can maintain a relatively stable kinetic performance, thereby improving the cycling performance of the battery.
Resumen de: EP4645484A1
The present application discloses a winding device (10), a winding system, and a winding method. The winding device (10) includes a winding needle (101) and a first push rod (102). A first needle body (1011) and a second needle body (1012) form a first hole (1015) at a first end (1013), at least part of the first hole (1015) is a first adjusting hole section (10151), and a radial dimension of the first adjusting hole section (10151) is gradually reduced in a direction close to a second end (1014). The first push rod (102) is inserted into the first hole (1015) and capable of reciprocating in an axial direction of the winding needle (101), and the first push rod (102) has a first adjusting section (1021) matched with the first adjusting hole section (10151). The winding device (10) can adjust a circumference of the winding needle (101) to reduce a tab misalignment amount.
Resumen de: EP4645640A1
A battery charging device suitable for portable operation includes a charging box with a grip is provided on one side of the top of the charging box near a first opening, and when the battery charging device is lifted by the grip, the tilt direction of the battery charging device is consistent with the tilt direction of a battery compartment. The battery charging device can thereby reduce the risk of the battery easily falling out of the battery compartment during transportation, which improves the reliability of the battery charging device during transportation.
Resumen de: EP4645424A1
This application relates to a positive electrode plate, a secondary battery, and an electrical device. The positive electrode plate includes a positive active material layer. The positive active material layer includes a first positive active material and a second positive active material. The first positive active material and the second positive active material each independently include a lithium-containing transition metal oxide. An outer surface of the second positive active material includes a passivation layer; and/or an average particle diameter D<sub>v50</sub> of the second positive active material is greater than an average particle diameter D<sub>v50</sub> of the first positive active material. The positive electrode plate endows the secondary battery with a relatively high cycle life.
Resumen de: EP4645548A1
A battery assembly of the present disclosure comprises: a plurality of battery cells; a cell frame that houses the plurality of battery cells; and a filling member that seals the upper end of the cell frame, wherein the battery assembly is provided with an isolation part that defines a cooling flow passage space for allowing a cooling medium to fill between the plurality of battery cells, and isolates between the cooling flow passage space and the filling member.
Resumen de: EP4645565A1
The present invention relates to a battery pack in which a cell assembly is accommodated. The battery pack includes: a pack case in which a cell assembly is seated; and an upper case coupled to the pack case so as to cover the top portion of the cell assembly seated in the pack case, wherein the upper case includes, at the bottom thereof, an elastic member for pressing the top portion of the cell assembly seated in the pack case.
Resumen de: EP4645571A1
The present application provides a separator, a battery cell, a battery and an electrical apparatus. The separator comprises a polymer group, wherein the polymer group comprises at least one of a first polymer and a second polymer, wherein the separator satisfies: 1.5≤m2−Mm1−M×vλ≤12.
Resumen de: EP4645400A1
A composite anode material (1) is provided. The composite anode material (1) includes a graphite (10), a plurality of silicon particles (20), and a carbon coating layer (30). The graphite (10) is pretreated with surface modification through an organic polymer. The plurality of silicon particles (20) are coated on the graphite (10). The carbon coating layer (30) is coated on the graphite (10) and the plurality of silicon particles (20). The carbon coating layer (30) is formed by carbonizing the organic polymer through a heat treatment. A preparation method of the composite anode material (1) includes steps as follows. Firstly, a graphite (10) and an organic polymer are mixed to form a first composite particle. Secondly, the first composite particle and a plurality of silicon particles (20) are mixed to form a second composite particle. Finally, a heat treatment is performed on the second composite particle to form the composite anode material (1).
Resumen de: MX2025007654A
The present disclosure relates to systems, non-transitory computer-readable media, and methods for collecting batteries and other devices for disposal or recycling. In particular, in one or more embodiments, the disclosed systems provide a battery collection bin comprising a transport drum within an enclosure and a removable cartridge or internal basin filled with fire suppressant. Also, in some embodiments, the disclosed systems detect deposit of a battery through a feed chute into the transport drum and determine, based on signals from one or more sensors, a fill level, volume, or weight of the transport drum. In response, embodiments of the disclosed systems utilize a dispensing system to dispense a measure of fire suppressant from the removable cartridge or internal basin into the transport drum to prevent unwanted thermal events. Additional mechanisms and related methods for streamlined and safe collection of batteries and other devices are disclosed.
Resumen de: EP4645631A1
This application relates to a battery heating method, a battery heating circuit, and an electric device. The method includes: acquiring a heating enable signal indicating that a motor is to heat a battery based on a heating circuit, and controlling switching states of switching transistors in a switch circuit in response to the heating enable signal, so as to generate a half-wave current in the motor to heat the battery, where a current waveform of each phase stator winding during the motor-based battery heating process is a half-wave current waveform, thereby increasing current harmonics in stator windings of the motor and dispersing vibration noise energy during the motor-based battery heating process. Thus, as compared to conventional technologies, the vibration noise during the motor-based battery heating process in the embodiments of this application is reduced, thereby alleviating the vibration noise issue during the motor-based battery heating process.
Resumen de: EP4645478A2
Example embodiments include a composite substrate for a rechargeable lithium battery, and a rechargeable lithium battery including the composite substrate. Example embodiments include a composite substrate for a rechargeable lithium battery that includes a support layer containing a polymer resin matrix and two or more conductive materials, and a metal layer on at least one surface of the support layer, wherein the two or more conductive materials include two or more materials including at least one of a conductive metal, a conductive polymer, a conductive oxide, a fibrous material (FIB), and a carbon nanotube (CNT).
Resumen de: EP4644933A1
Disclosed is a battery diagnosis apparatus and a battery diagnosis method. The battery diagnosis apparatus includes a processor configured to control a stimulation application device to intermittently apply a second electric stimulation greater than a first electric stimulation to a target cell during a state change period, and a communication unit configured to obtain current time series data during the state change period and voltage time series data representing a change history of a full-cell voltage of the target cell during rest periods of the second electric stimulation given in the state change period. The processor generates a measurement full-cell profile based on the current time series data and the voltage time series data, and analyzes the measurement full-cell profile to estimate a positive electrode participation end point.
Resumen de: EP4645521A1
The present application provides a breaker box system, a power supply system, and a vehicle. The breaker box system comprises a plurality of breaker boxes, the plurality of breaker boxes not sharing a ground. Each breaker box comprises a housing, a battery cell, and an insulation detection assembly, the battery cell and the insulation detection assembly being disposed in the housing. One end of the insulation detection assembly is connected to a positive electrode of the battery cell, the other end is connected to a negative electrode of the battery cell, and a reference ground of the insulation detection assembly is the housing of the breaker box. The embodiments of the present application, by having the plurality of breaker boxes not share a ground, by providing in each breaker box an insulation detection assembly corresponding thereto, and by each insulation detection assembly being used for insulation detection of the corresponding breaker box, achieves the insulation detection of each breaker box not affecting one another, and achieves insulation detection of each breaker box.
Resumen de: WO2024145457A1
A cathode material can include a substrate including an active cathode material and a coating overlying at least a portion of the substrate. The coating material may include CFX and M2CO3, wherein M may include an alkali metal. In a particular embodiment, the coating may include MF. In another particular embodiment, M may include Li.
Resumen de: CN120513219A
Disclosed is a method for preparing a battery material, the method comprising heat treating an aqueous suspension comprising a partially delithiated lithium nickel oxide (DLNO) to produce a heat treated suspension, and contacting the heat-treated suspension with an aqueous medium comprising KOH at a temperature between 20 DEG C and 90 DEG C to produce a solid stabilized slurry comprising the battery material. The ratio of the weight of KOH in the aqueous medium to the weight of the DLNO in the heat-treated suspension may be between about 0.2 and about 0.03.
Resumen de: CN120419003A
A battery includes a cathode comprising a disordered rock salt structure and an electrolyte. The electrolyte includes a solvating solvent and a lithium salt soluble in the solvating solvent. The electrolyte includes a diluent that is miscible with the solvating solvent. The solubility of the lithium salt in the solvating solvent is at least 5 times the solubility in the diluent, and the solvating solvent and the diluent are present in the battery at a diluent/solvating solvent ratio of 0.1 to less than 3.0.
Resumen de: EP4645506A1
The invention relates to the field of accumulator design. A traction battery for highly automated self-driving vehicles comprises a housing having mounted therein in-series connected modules, a heating system comprised of heating mats arranged between said modules, and a control system. The modules are arranged in two tiers. Each module contains series-interconnected lithium-iron-phosphate-based rechargeable cells that are electrically isolated from one another. The control system consists of temperature sensors mounted on each module, a humidity sensor, voltage meters for each cell in a module, and a current sensor for a lower and an upper power module. The invention makes it possible to increase the nominal voltage and the range of working temperatures during discharge and to provide for safer maintenance of the traction battery.
Resumen de: EP4645461A1
A positive electrode active material for a rechargeable battery, comprises first particles having an olivine structure, second particles having a spinel structure, third particles having a layered structure and fourth particles in a weight ratio of about 0.5 wt% to about 5 wt% based on a total weight of the positive electrode active material. Also disclosed are positive electrodes including the positive electrode active material, and rechargeable lithium batteries including the positive electrode active material.
Resumen de: EP4645462A1
A positive electrode for a rechargeable lithium battery includes a current collector, a first active material layer on the current collector, and a second active material layer on the first active material layer. The first active material layer includes a first particles that are olivine structured compounds, second particles that are a layered compound, a first conductive material, and a first binder. The second active material layer includes third particles that are olivine structured compounds, a second conductive material, and a second binder. The first particles are in the form of secondary particles in which a plurality of first primary particles are agglomerated, the first particles have an average diameter (D<sub>50</sub>) of about 3 µm to about 7 µm, and the second particles have an average diameter (D<sub>50</sub>) of about 3 µm to about 14 µm.
Resumen de: EP4645402A1
A method for generating a roll map includes: coating, with electrode slurry, a first electrode sheet unwound from a first electrode roll so as to form, thereon, a first coated part lane, a second coated part lane, a first uncoated part, and a second uncoated part; forming a first reference point on the first uncoated part and forming a second reference point on the second uncoated part; winding the first electrode sheet into a second electrode roll; detecting the first reference point of the second electrode sheet unwound from the second electrode roll so as to collect first reference point data that indicate coordinates of the first reference point in the second electrode sheet; and generating, on the basis of the first reference point data, second reference point data that indicate coordinates of the second reference point in the second electrode sheet.
Resumen de: EP4645532A1
The present disclosure relates to a battery module including a cell stack including a plurality of battery cells; a module case configured to accommodate the cell stack; and a protective layer disposed on an outer surface of the module case and configured to prevent thermal conduction and thermal radiation to an outside of the module case.
Resumen de: EP4644464A1
The present application provides a polymer, a preparation method, a dispersant, a positive electrode slurry, a positive electrode plate, a secondary battery, and a power consuming apparatus. The polymer includes a structure expressed by formula (I), where X includes at least one of a carboxyl group, an ester group, a sulfo group, a sulfonate group, a phospho group, and a phosphate group; X' includes a non-polar group; and L includes a structural unit expressed by formula (II), where R<sub>1</sub> includes a C<sub>1-12</sub> alkylene group, a C<sub>6-12</sub> arylene group or formula (A), R<sub>2</sub> includes a C<sub>1-12</sub> alkylene group, a C<sub>6-12</sub> arylene group or formula (B), and R<sub>3</sub> includes hydrogen or a C<sub>1-3</sub> alkyl group, where EO represents -CH<sub>2</sub>-CH<sub>2</sub>-O-, PO represents -CH(CH<sub>3</sub>)-CH<sub>2</sub>-O-, m1 and m2 are each independently an integer between 3 and 60, and n1 and n2 are each independently an integer between 0 and 60.
Resumen de: EP4644449A1
The present application provides a polymer, a preparation method, a dispersant, a positive electrode slurry, a positive electrode plate, a secondary battery, and a power consuming apparatus. The polymer includes a structure expressed by formula I, where X includes at least one of a carboxyl group, an ester group, a sulfo group, a sulfonate group, a phospho group, and a phosphate group; X' includes a non-polar group; and L includes a structural unit expressed by formula II, where R<sub>1</sub> includes at least one of a C<sub>1-12</sub> alkylene group, a C<sub>6-12</sub> arylene group, and (I), R<sub>2</sub> includes at least one of a C<sub>1-12</sub> alkylene group, a C<sub>6-12</sub> arylene group, and (II), and R<sub>3</sub> includes hydrogen or a C<sub>1-18</sub> alkyl group, where EO represents -CH<sub>2</sub>-CH<sub>2</sub>-O-, PO represents -CH(CH<sub>3</sub>)-CH<sub>2</sub>-O-, m1 and m2 are each independently an integer between 1 and 10, and n1 and n2 are each independently an integer between 0 and 10.
Resumen de: EP4645420A1
The present application relates to a negative electrode sheet, and a secondary battery and an electrical device including the same. The negative electrode sheet comprises a current collector and a negative electrode active layer stacked on surface of the current collector, and the negative electrode active layer comprises a first active layer and a second active layer which are stacked. The materials of the first active layer comprise, in percentage by mass based on the first active layer: 60%-94% of a silicon-based material, 0%-30% of a carbon-based material, and 5%-15% of a binder. The materials of the second active layer comprise, in percentage by mass based on the second active layer: 0%-5% of a second silicon-based material, 94%-99% of a second carbon-based material, and 1%-3% of a second binder. The negative electrode sheet has good cycle performance.
Nº publicación: EP4644878A2 05/11/2025
Solicitante:
LG ENERGY SOLUTION LTD [KR]
LG Energy Solution, Ltd
Resumen de: EP4644878A2
A monitoring device according to one embodiment disclosed herein may include an image acquisition unit configured to acquire an image capturing at least one process processing device related to manufacturing of a battery cell, a state determination unit configured to generate a first determination result obtained by determining whether the battery cell is defective by inputting the acquired image into an artificial intelligence model configured to determine a state of a top insulator of the battery cell, and a determination unit configured to determine whether the battery cell is defective based on the first determination result.
BOPI
Sede Electrónica
