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1563
resultados
Última actualización
19/12/2025 [07:14:00]
Resultados 300 a 325 de 1563
Resumen de: EP4664608A1
Embodiments of the present application provide a control method for a refrigeration system, related devices, and a storage medium, involving battery cooling technology. The method includes: in a case that a current ambient temperature being within a first preset temperature range is determined, a water pump of the refrigeration system and a compressor of the refrigeration system are activated; in a case that a first pressure corresponding to the refrigeration system reaching a preset pressure value is determined, a fan of the refrigeration system is activated, so as to maintain a pressure of the refrigeration system within a preset pressure range for cooling a battery management system; in a case that the current ambient temperature being within a second preset temperature range is determined, the water pump of the refrigeration system is activated, and activation of the compressor and the fan is prohibited.
Resumen de: EP4664719A2
A charging system includes: an information input unit that acquires device-to-be-charged information that is information on devices-to-be-charged connected to charging ports; a unit-allocating unit that allocates a power conversion unit to each charging port corresponding to each device-to-be-charged such that the power conversion unit is allocated in high priority to the device-to-be-charged with a high priority level based on the devices-to-be-charged information; and a switching control unit that controls a switch unit, based on a result of the allocation by the unit-allocating unit.
Resumen de: EP4663603A1
A porous carbon material, in an XRD pattern of the porous carbon material, a (002) crystal plane diffraction peak is exhibited at a diffraction angle 2θ of 26.1° to 26.9°, and a full-width-at-half-maximum of the (002) crystal plane diffraction peak is FWHM°, and 1.80 ≤ FWHM ≤ 11.00. By increasing the graphitization degree of the porous carbon material and forming a crystal structure with well-ordered carbon atoms, endowing the porous carbon material with relatively high conductivity and structural stability, and can favorably reduce the internal resistance of the silicon-carbon material after a silicon material is deposited.
Resumen de: EP4664125A1
A relay failure diagnosing method is a relay failure diagnosing method for an electricity storage device system (1) that includes multiple electricity storage device packs (10, 20) each comprising a positive and negative relay (12, 13, 22, 23) and a precharge relay (14b, 24b). The relay failure diagnosing method is executed by a controller (50). The relay failure diagnosing method includes diagnosis processing (S1) and change processing (S2). In the diagnosis processing, a failure of a relay is diagnosed for one or some of the multiple electricity storage device packs at startup of the electricity storage device system. In the change processing, an electricity storage device pack that is to be a target of failure diagnosis is changed.
Resumen de: EP4664643A1
Disclosed in the present application are a battery cell, a battery and an electric device. The battery cell comprises: a case, the case comprising a first wall portion, a second wall portion and a third wall portion; a pressure relief mechanism, the pressure relief mechanism being arranged at the first wall portion; and an electrode assembly, which is accommodated in the case, wherein the electrode assembly comprises at least one negative electrode sheet, an active material layer is formed on at least one side of the negative electrode sheet, and in a second direction, the first wall portion is arranged facing an edge of the negative electrode sheet; in the second direction, the minimum distance between the pressure relief mechanism and an edge of the active material layer is D, and 3 mm≤D≤15 mm; on the basis of the total mass of the active material layer, the mass proportion of an active material is S, and 0.5%≤S≤25%; and in a first direction, the minimum distance between an edge of the pressure relief mechanism and an outer surface of the second wall portion or an outer surface of the third wall portion is d, and 3 mm≤d≤20 mm.
Resumen de: EP4664557A1
A cathode material, a cathode slurry and a lithium ion battery provided. The cathode material has a general chemical formula of where 0.80≤σ≤1.20, a+b+c+x+y+z=1, 0.6≤a≤1.0, 0.0≤b≤0.10, 0.0≤c≤0.3, 0
Resumen de: EP4664597A1
The present application discloses a battery cell, a battery, and an electric device. The battery cell comprises: a casing, the casing comprising a first wall portion; a pressure relief mechanism, the pressure relief mechanism being arranged on the first wall portion; and an electrode assembly, being accommodated in the casing, the electrode assembly comprising at least one negative electrode sheet, the first wall portion facing the edge of the negative electrode sheet, an active material layer being formed on at least one side of the negative electrode sheet, the active material layer comprising a first region and a second region which are arranged in a first direction, the second region being closer to the first wall portion than the first region, the first direction being parallel to the thickness direction of the first wall portion, and in a full-charge state, the thickness of the second region being a µm, and the thickness of the first region being b µm, wherein b-a≥5 µm.
Resumen de: EP4664094A1
A device for testing the dryness of an electrode according to the present disclosure comprises: an electrode substrate in which an electrode slurry is applied onto a collector, a standard sample, a light emitting unit that includes a light source and a bifurcated optical fiber connected to the light source, and selectively irradiates light to any one of the electrode substrate and the standard sample through one optical fiber of the bifurcated optical fiber, a light receiving unit that includes a spectrometer that selectively receives light reflected from any one of the electrode substrate and the standard sample and analyzes the reflected light, and a control unit that corrects at least one of the light source and the spectrometer based on the analysis results of the spectrometer.
Resumen de: EP4663307A1
Disclosed herein relates to a die coater, wherein in the second coater shim forming the second slit through which the insulating liquid is discharged, the length L1 of the first sidewall at a relatively distant position from the first slit is longer than the length L2 of the second sidewall at a relatively close position from the first slit.
Resumen de: EP4664593A1
Disclosed in embodiments of the present application are an electrolyte, a lithium-ion battery, and an electric device. The electrolyte comprises a metal ion including at least one of K+, Rb+, and Cs+; and the molar concentration CM of the metal ion in the electrolyte satisfies: 0.03M ≤ CM. When applied in lithium-ion batteries, the electrolyte can effectively reduce the risk of lithium plating on the negative electrode and improve the safety performance of the lithium-ion batteries.
Resumen de: EP4664553A1
The present invention relates to a negative electrode active material, a negative electrode slurry, a negative electrode comprising same, and a secondary battery comprising the negative electrode, the negative electrode active material comprising a silicon-carbon composite, a carbon layer provided on at least a portion of the silicon-carbon composite, and a coating layer of a catechol derivative or a gallol derivative provided on at least a portion of at least one of the silicon-carbon composite and the carbon layer.
Resumen de: EP4664646A1
The present technology provides a separation structure including a plurality of cell accommodation spaces separated from each other in a first direction and a plurality of venting channels separated from each other in the first direction, and a plurality of battery cells accommodated in the plurality of cell accommodation spaces of the separation structure, in which each of the plurality of venting channels is provided in a corresponding cell accommodation space among the plurality of cell accommodation spaces, and each of the plurality of venting channels extends in a second direction perpendicular to the first direction to guide a gas in the second direction.
Resumen de: EP4664559A1
A cathode material and a preparation method thereof, and a lithium ion battery are provided. A volume particle size distribution width of the cathode material is Span, Span=D90−D10D50, and a dissociation degree of the cathode material is β, β=D50Dn50, wherein the cathode material meets the following relationships: 1.1≤β<1.65, and 0.9≤Span≤1.53.The dissociation degree and volume particle size distribution width of the cathode material provided in the present disclosure meet the above conditions, such that it may ensure that the cathode material has a certain electrode plate compaction density to increase an energy density while ensuring the integrity of a crystal structure of the cathode material during charging and discharging of a lithium ion battery, and a gas production value is reduced, thereby causing the cathode material to have excellent cycling performance and safety performance.
Resumen de: EP4664595A1
Die vorliegende Erfindung betrifft einen lösungsmittelbasierten Elektrolyt für einen elektrochemischen Energiespeicher, aufweisend wenigstens die folgenden Bestandteile:- wenigstens ein Lösungsmittel; und- wenigstens ein Leitsalz, wobeiwenigstens ein Lösungsmittel der folgenden Formel (1) entspricht:wobei- R und R<sub>1</sub> gleich oder verschieden sind und ausgewählt sind aus der Gruppe bestehend aus H, CH<sub>3</sub>, der Struktur gemäß Formel (3) und der Struktur gemäß Formel (4) oder R und R<sub>1</sub> gemeinsam die Struktur gemäß Formel (2) ausbilden, wobei- die Formel (2) der folgenden Struktur entspricht:- die Formel (3) der folgenden Struktur entspricht:wobei n eine ganze Zahl von 1 bis 10 ist;- die Formel (4) der folgenden Struktur entspricht:wobei in den Formeln (1), (3), und (4) R<sub>2</sub> und R<sub>3</sub> gleich oder verschieden sind und ausgewählt sind aus der Gruppe bestehend aus H, (CH<sub>2</sub>)<sub>x</sub>-CH<sub>3</sub>, wobei x eine ganze Zahl von 0 bis 9 ist.
Resumen de: EP4664535A1
Disclosed herein is a roll press device for performing hot rolling on an electrode coated with electrode active material, wherein, in one example, a pre-heater is disposed upstream of a rolling unit that performs rolling on an electrode transferred in a roll-to-roll manner, and the pre-heater irradiates an infrared laser along a width direction of the electrode surface to heat it as radiant heat.
Resumen de: EP4664583A1
A battery cell, a battery and an electrical apparatus, relating to the technical field of batteries. The battery cell comprises a casing, having a first opening; a first end cap assembly, used for covering the first opening, the first end cap assembly comprising protruding structures and a first electrode lead-out component; an electrode assembly, accommodated in the casing, the electrode assembly comprising a main body part and tabs extending from the main body part; and an isolation component, at least partially provided between the first electrode lead-out component and the main body part, wherein the isolation component comprises opening structures, reinforcement structures and isolation plates, the opening structures are protrudingly arranged on the surfaces of the isolation plates facing the first end cap assembly and are snap-fitted with the protruding structures, and the reinforcement structures are connected to the outer side walls of the opening structures, thus improving the reliability of the battery cell.
Resumen de: EP4664579A1
The present invention provides a cylindrical battery with expansion tape. The cylindrical battery comprises an outer housing and a wound core accommodated in the outer housing, wherein the wound core is obtained by winding and flattening a positive electrode sheet, a negative electrode sheet and a separator. The wound core comprises a positive electrode end face and a negative electrode end face, and expansion tape is wound around an outer periphery of the wound core. At least at a positive electrode end of the wound core, before expansion of the expansion tape, the top of the expansion tape is level with or higher than the top of the separator. The cylindrical battery with expansion tape of the present invention is able to reduce the risk of short circuits due to aluminum foil folding over and coming into contact with an outer housing, and also conforms to an existing structural tolerance design, so will not give rise to new, secondary problems.
Resumen de: EP4664609A1
An electric battery unit comprises an array of battery cells (2) immersed, within a container (4) of the battery unit (1), in a flow of a temperature regulating fluid, for maintaining the battery unit within a determined range of temperature. Each cell (2) has a positive pole (3P), a negative pole (3N) and a vent valve (V) arranged on a side surface (2C) of the cell, facing a side wall (4A) of the container (4). All the positive poles (3P), all the negative poles (3N) and all the vent valves (V) of the cells (2) are contained within three respective lateral chambers (CP, CN, CV) of the battery unit (1) that are isolated from each other and that are isolated with respect to the spaces (7) between the cells (2). Each of the lateral chambers (CP, CN, CV) communicates with the inlet collector chamber (5) and the outlet collector chamber (6). In the connection between each of the lateral chambers (CP, CN) and the inlet collector chamber (5) and/or the outlet collector chamber (6) at least one restricted passage (90A, 90B, 91A, 91B, 92, 92A, 92B) is inserted, so that the temperature regulating fluid does not tend to flow preferentially through the lateral chambers (CP, CN, CV) rather than through the spaces (7) between the cells (2).
Resumen de: EP4664611A1
A battery module includes battery cells each of which includes a pair of broad width surfaces and that are arranged such that the broad width surfaces are opposed to each other and a heat insulator arranged between an adjacent pair of battery cells. The heat insulator includes a heat insulating sheet and a buffer sheet bonded to the heat insulating sheet. The heat insulating sheet is formed of a material that can be more easily compressively deformed than the heat insulating sheet. The heat insulating sheet includes a recessed portion in a surface to which the buffer sheet is bonded.
Resumen de: EP4664577A2
A tab welding structure and a battery are provided, relating to the field of battery technology. The tab welding structure includes a wound body (100) with an electrode plate, and a full tab (110). The full tab (110) is electrically connected to the electrode plate and located at one end of the wound body (100). A current collector (300) is welded to the full tab (110) to form welding point groups (200). The welding point groups (200) are arranged in a radial pattern around a center of the wound body (100). Each welding point group (200) includes welding points (211) arranged in a wave pattern along a radial direction of the wound body. This configuration enhances the uniformity of current conduction in the wound body (100) and reduces the amount of current loss.
Resumen de: EP4663565A1
Die Erfindung betrifft ein Verfahren zum automatisierten Aufbringen eines selbstklebenden Stanzteils (7) auf ein Fahrzeugelement (1) wie Batteriegehäuse durch eine an einem Roboterarm befestigte Applikationseinheit (100), wobei mittels eines Zylinders (5), aufweisend eine Wirkachse (W) und umfassend einen Vakuumstempel (6), ein selbstklebendes Stanzteil (7) von einem Stanzteilband (8) aufweisend eine Längsrichtung (L) abgelöst wird und dann auf ein Fahrzeugelement (1) aufgestempelt wird,- wobei das Stanzteilband (8) zur Verfügung gestellt wird,- der Vakuumstempel (6) in eine Übernahmeposition bewegt wird,- wobei in der Übernahmeposition ein Vakuum in dem Vakuumstempel (6) aktiviert wird,- das selbstklebende Stanzteil (7) durch Bewegen des Vakuumstempels in Richtung des selbstklebenden Stanzteils (7) mittels des Vakuums am Vakuumstempel (6) fixiert wird,- das selbstklebende Stanzteil (7) von dem Stanzteilband (8) abgelöst wird, indem der Vakuumstempel (6) mindestens so weit wegbewegt wird, dass das selbstklebende Stanzteil (7) vollständig von dem Stanzteilband (8) abgelöst wird, und- der Vakuumstempel (6) in eine Position über das Fahrzeugelement (1) geführt wird und das selbstklebende Stanzteil (7) auf dem Fahrzeugelement (1) aufgebracht wird, indem der Vakuumstempel (6) durch den Zylinder (5) aus der Übernahmeposition entlang der Wirkachse (W) in eine Applikationsposition gebracht wird, in der das selbstklebende Stanzteil (7) auf das Fahrzeugelement (1) gestempel
Resumen de: EP4664630A1
A power storage device (10) includes at least one power storage cell (100), a top wall (220) provided over the power storage cell, a facing wall (212, 240) facing the power storage cell in a width direction, a support portion (300) supporting the power storage cell, and a bottom plate (230) disposed under the power storage cell. The bottom plate (230) includes a connecting surface (231a) formed so as to be flat. At least one of the facing wall and the support portion includes a bottom surface (212a, 310a) formed in a position closest to the connecting surface (231a) of the bottom plate (230) and formed so as to be flat. The connecting surface (231a) of the bottom plate (230) is connected to the bottom surface.
Resumen de: EP4664661A1
In the present secondary battery (1), a current collector (431) is a first stack in which a plurality of metal plates (4300) are stacked, the current collector (431) includes a first region (431A) and a second region (431B), a positive electrode tab group (250, 280) is joined to the first region (431A), a positive electrode current collection portion (420) is joined to the second region (431B), and the current collector (431) is bent between the first region (431A) and the second region (431B). According to the present secondary battery (1), it is possible to suppress occurrence of damage to the tab group.
Resumen de: EP4664662A1
In the present method of manufacturing a secondary battery (1), a current collector (53A) is a first stack in which a plurality of metal plates (4300) are stacked, the current collector (53A) includes a first region (532A) and a second region (532B), a positive electrode tab group (250, 280) is joined to the first region (532A), a positive electrode current collection portion (420) is joined to the second region (532B), the method including: a preparation step of preparing the current collector (53A) having a first joining portion (532T) in which the metal plates are partially joined together; a first tab group connection step of joining the positive electrode tab group (250, 280) to the current collector (53A); and an other conductive member connection step of joining the positive electrode current collection portion (420) to the current collector (53A). According to the present method of manufacturing the secondary battery (1), occurrence of damage to the tab group can be suppressed.
Nº publicación: EP4663459A1 17/12/2025
Solicitante:
VOLKSWAGEN AG [DE]
VOLKSWAGEN AG
Resumen de: EP4663459A1
Die Erfindung betrifft ein Unterbodensystem (3) für ein Fahrzeug (1) aufweisend eine Batterie (2) zur Bereitstellung von Antriebsenergie für das Fahrzeug (1), eine Schutzeinheit (4) zum Schutz der Batterie (2), eine Lichtleitereinheit (10) zum Erkennen einer Störung (210) der Schutzeinheit (4) mit zumindest zwei Lichtwellenleitern (11), durch welche jeweils ein Lichtsignal (200) leitbar ist, und eine Kontrolleinheit (20) mit einer Messeinheit (21) zum Ausführen einer optischen Messung (102) zum Erfassen jeweils zumindest eines Lichtparameters (201) der Lichtsignale (200) und einer Auswerteeinheit (22) zur Erkennung der Störung (210) anhand einer Auswertung der optischen Messung (102). Ferner betrifft die Erfindung ein Verfahren (100), sowie ein Fahrzeug (1).
BOPI
Sede Electrónica
