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1603
resultados
Última actualización
09/11/2025 [07:15:00]
Resultados 525 a 550 de 1603
Resumen de: EP4644830A1
The present application relates to a coating misalignment detection method, an apparatus, a computer device, and a storage medium. The method includes: obtaining a coating type of an electrode plate substrate and determining a number of reference edges according to the coating type; determining a corresponding target reference edge of each coating region edge of the electrode plate substrate in a case where the number of reference edges is two; determining first distance data from coating region edges on a first surface of the electrode plate substrate to a corresponding target reference edge and second distance data from coating region edges on a second surface of the electrode plate substrate to a corresponding target reference edge; and determining a coating misalignment amount of the electrode plate substrate in a coating process according to the first distance data and the second distance data. By adopting the method, the interference generated by blank regions on the surfaces of the electrode plate substrate in the coating misalignment detection process can be reduced, and the accuracy of the coating misalignment detection is effectively improved.
Resumen de: EP4645443A1
The present application provides a positive electrode plate and a preparation method therefor, as well as a secondary battery, and an electrical apparatus. The positive electrode plate of the present application has a higher compacted density.
Resumen de: EP4644843A1
The present application provides a calibration element and a method for calibrating a detection system using the calibration element. The calibration element includes a base body including a side face and at least one reference portion located at the side face of the base body, wherein the at least one reference portion has at least two of the following items: at least one first shape feature perpendicular to the side face, at least one second shape feature parallel to the side face, and at least one color feature, wherein the at least one first shape feature, the at least one second shape feature and the at least one color feature are used for calibration of the detection system. The technical solutions in the embodiments of the present application can efficiently determine whether a fault exists in the detection system, find and solve a problem in a timely manner, thereby ensuring the normal operation of the system.
Resumen de: EP4645555A1
A cell block fixing structure for battery module assembly, including a jig moving body positioned above a module frame when the module frame is placed on a welding machine and fixed, and a fixing jig connected to a lower end of the jig moving body, wherein the cell block assembly includes at least one terminal busbar formed to protrude to the outside of the module frame on one side of the module frame, at least one terminal hole is formed in the at least one terminal busbar is provided. The jig moving body moves downward such that the fixing jig is inserted and fitted into the at least one terminal hole at the time of welding the module frame.
Resumen de: EP4645457A2
A positive electrode for a rechargeable lithium includes a current collector. A first active material layer is provided on the current collector, and the first active material layer includes first particles, second particles, a first binder, and a first conductive material. A second active material layer is provided on the first active material layer, and the second active material layer includes third particles, a second binder, and a second conductive material. The first particles contain an olivine structured compound, the second particles contain a layered compound, the third particles contain an olivine structured compound, the first particles are single particles, and the first particles have an average diameter of about 100 nm to about 2 µm. The first active material layer and the second active material layer have a cobalt (Co) content of less than about 100 ppm. An average diameter of the second particles is greater than the average diameter of the first particles. The third particles are single particles, and the third particle have an average diameter of about 100 nm to about 2 µm.
Resumen de: EP4645516A1
A battery disconnect unit includes: a housing designed to accommodate an electrical component therein; and at least one cavity formed in a body of the housing for storing a fire extinguishing liquid. The fire extinguishing liquid stored in the cavity is prevented from being ejected to an outside of the housing under a condition below a preset temperature, and is ejected to the
Resumen de: EP4645522A1
A method for recovering a battery material. The method comprises: soaking an electrode or a cell in a first phosphoric acid solution for separation to obtain an electrode material, wherein the concentration of the first phosphoric acid solution is less than 10 wt.%; soaking the electrode material in a second phosphoric acid solution, and then filtering same to obtain a first filtrate, wherein the concentration of the second phosphoric acid solution is greater than or equal to 10 wt.%; and adding a first iron source to the first filtrate for reaction, and then filtering same to obtain a second filtrate, wherein the second filtrate has lithium ions, divalent iron ions and phosphate ions.
Resumen de: EP4645448A1
This disclosure provides a lithium supplement material, including Li5Fe1-XMXO4 and a cladding layer disposed on a surface of Li5Fe1-xMxO4. In Li5Fe1-xMxO4, M is at least one of Ni, Mn, Ru, Cr, Cu, Nb, Al, Mg, Ca, Ga, Ti, and Mo, and 0 ≤ x ≤ 0.2. The cladding layer includes M'-doped zinc oxide or M'-doped composite oxide based on zinc oxide, and M' is an ion capable of forming a substitutional solid solution with zinc oxide or composite oxide based on zinc oxide.
Resumen de: EP4644884A1
An inspection device and an inspection system are provided. The inspection device includes a first conveying mechanism (10), a radiographic imaging inspection mechanism (20), a stacking mechanism (30), a second conveying mechanism (40) and a tomographic imaging inspection mechanism (50). The first conveying mechanism (10) is used to convey a battery cell. The radiographic imaging inspection mechanism (20) is used to inspects the battery cell. The stacking mechanism (30) is used to stack battery cells into a battery cell group. The second conveying mechanism (40) is used to convey the battery cell group. The tomographic inspection mechanism (50) is used to inspect the battery cell group.
Resumen de: EP4644277A1
A battery cell protective film coating system, comprising battery cell protective film coating apparatuses. Each battery cell protective film coating apparatus comprises a first base, a film suction mechanism, a turning mechanism, a roller mechanism and a film folding and pressing mechanism. The film suction mechanism is arranged on the first base; the turning mechanism is arranged on the first base and drives a part of the film suction mechanism to rotate relative to the other part of the film suction mechanism; the roller mechanism is arranged on the first base and can move up and down relative to the first base; the roller mechanism is used for coating the side face of a cell in a first direction with a protective film; the film folding and pressing mechanism comprises folding blade assemblies; each folding blade assembly comprises a folding blade and a first drive component, the first drive component driving the folding blade to move, and the folding blade being used for coating the side face of the cell in a second direction with the protective film.
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: EP4645535A1
This application relates to the field of batteries, and provides a battery cell, a battery, and a power consuming device. The battery cell includes a housing and a protective member. The housing includes a case and an end cover. An opening is formed in at least one end of the case in a first direction, and the end cover closes the opening. The end cover is connected to the case to form a connection portion. The protective member includes a main body portion and a first flange portion. The main body portion surrounds an outer surface of the case. In the first direction, the first flange portion is connected to an end of the main body portion, and the first flange portion is disposed on the end cover and covers at least a part of the connection portion. The main body portion of the protective member surrounds the outer surface of the case such that the case can be protected, thereby reducing the risk of damage to the case. The first flange portion covers at least a part of the connection portion such that liquid leakage from the connection portion can be prevented to a certain extent, thereby reducing the liquid leakage speed, and improving the reliability of the battery cell to a certain extent.
Resumen de: EP4645520A1
The present invention relates to a secondary battery for an internal short-circuit test, and the secondary battery for the internal short-circuit test includes: an electrode assembly; and a pouch configured to accommodate the electrode assembly, wherein the electrode assembly includes: a main first electrode constituted by a main first current collector and a main first coating layer applied to a remaining surface except for a first non-coating surface that is partitioned on the main first current collector; a second electrode constituted by a second current collector and a second coating layer applied to a surface of the second current collector; a main separator disposed between the main first electrode and the second electrode and having a through-hole at a position corresponding to the first non-coating surface; an auxiliary separator detachably attached to the main separator to block or open the through-hole; and an auxiliary first electrode detachably attached to the first non-coating surface and configured to connect the first non-coating surface of the main first current collector to the second electrode so that internal short circuit between the first non-coating surface and the second electrode occurs through the opened through-hole when being detached.
Resumen de: EP4645533A1
This application discloses an electrochemical apparatus and an electrical device. The electrochemical apparatus includes an electrode assembly, a battery cell shell, and an electrode terminal. The battery cell shell includes a shell body for accommodating the electrode assembly and an encapsulation portion extending outward from the shell body in a first direction, the encapsulation portion includes a first encapsulation area and a second encapsulation area, and in the first direction, an end portion of the first encapsulation area facing away from the shell body has a first distance from the electrode assembly, and an end portion of the second encapsulation area facing away from the shell body has a second distance from the electrode assembly, the first distance being greater than the second distance. The electrode terminal includes a first portion, a second portion, and a third portion connected in sequence, the first portion is electrically connected to the electrode assembly, the second portion is clamped to the first encapsulation area, and the third portion is exposed out of the battery cell shell. Since the first distance is greater than the second distance, the size of a head of a battery cell is reduced, and a side of the second encapsulation area facing away from the shell body can be used for avoiding other components, which is conducive to improving the energy density of the electrochemical apparatus.
Resumen de: EP4645468A1
A modified single-crystalline nickel cobalt lithium manganate positive electrode material, a preparation method therefor, and a lithium ion battery. The modified single-crystalline nickel cobalt lithium manganate positive electrode material comprises a matrix and a coating layer coating the surface of the matrix. The chemical formula of the matrix is LiaNixCoyMn1-x-y-zMzO2, where 0.9≤a≤1.2, 0.5≤x<1, 0
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: EP4644929A1
A low-voltage battery cell sorting apparatus according to an embodiment disclosed herein includes a data obtaining unit configured to obtain processing data sets of battery cells included in each of a plurality of battery trays, a data pre-processing unit configured to generate derived variable data sets comprising at least two types of derived variables for each of the battery cells, by using the processing data sets, and standardize the derived variable data sets, and a sorting unit configured to sort, as a low-voltage battery cell, a battery cell having a standardized derived variable data set out of a designated range among the standardized derived variable data sets, by using an artificial intelligence model.
Resumen de: EP4643686A1
The application provides an aerosol generation system and a heating control method thereof. The mothod comprises: detecting an initial temperature of a heating module; acquiring a first pre-stored parameter according to the initial temperature, and acquiring a second pre-stored parameter according to a preset heat preservation duration; acquiring a first temperature according to the first pre-stored parameter and a preset expected temperature; acquiring a second temperature according to the first temperature and the second pre-stored parameter; and controlling the heating module to work, and controlling the temperature of the heating module to gradually decrease when the temperature of the heating module reaches the first temperature, enabling the temperature of the heating module to reach the second temperature after the heat preservation duration. The hysteresis of temperature change can be overcome by controlling the heating module, allowing the temperature of air at the end of cigarette body to remain constant, increasing the taste when inhaled by the user.
Resumen de: EP4645578A1
An electrode assembly, a battery, and an electric device are provided. The electrode assembly includes a first electrode plate, a separator, and a second electrode plate disposed in sequence. The electrode assembly further includes a tab, a first insulating layer, and a second insulating layer. The first electrode plate includes a first current collector and first active material layers applied on two sides of the first current collector. The first active material layer is provided with a tab groove, and the tab groove is provided with a tab. At least one surface of the first active material layer is provided with a thinned region in communication with the tab groove. The thinned region includes a first depression apart from the tab groove in the first direction, and a second depression provided between the first depression and the tab groove. The first insulating layer is provided in the second depression. The second insulating layer is connected to a side of the second electrode plate facing the first depression, and a projection of the second insulating layer in the first direction is located in the first depression. The electrode assembly can improve energy density of the battery and reduce the risk of lithium precipitation.
Nº publicación: EP4645507A1 05/11/2025
Solicitante:
BYD CO LTD [CN]
BYD Company Limited
Resumen de: EP4645507A1
A secondary battery, comprising a positive electrode layer, a negative electrode layer and an insulating layer. The insulating layer is located between the positive electrode layer and the negative electrode layer; the thickness of the positive electrode layer is 10 to 200 mm; the thickness of the negative electrode layer is 5 to 150 mm; the secondary battery meets the following condition: 20%≤a-(b/20) × 5%≤35%; the porosity of the insulating layer is a; and the thickness of the positive electrode layer is b mm. According to the secondary battery, the impedance of the secondary battery can be obviously reduced, and the capacity retention rate of the battery is increased in the long-term cycle process.
BOPI
Sede Electrónica
