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1235
resultados
Última actualización
11/02/2026 [07:44:00]
Resultados 1150 a 1175 de 1235
Resumen de: EP4685970A1
A battery cell (200), a battery (400), and an electric device (500). The battery cell (200) comprises: an electrode assembly (300) comprising a positive electrode sheet and a negative electrode sheet, the positive electrode sheet and the negative electrode sheet form a flat region (301); and a housing (60) comprising a first wall portion (11) and two second wall portions (12), the two second wall portions (12) being respectively located on two sides of the flat region (301) in a first direction. The first wall portion (11) comprises a shell body (111) and a pressure relief portion (112), wherein the shell body (111) is arranged around the periphery of the pressure relief portion (112), a notch groove (113) is formed in the pressure relief portion (112) and has a first groove wall section (114) obliquely extending in the first direction on a bottom wall thereof, and the first groove wall section (114) is at an angle to the first direction.
Resumen de: EP4685936A1
Provided in the embodiments of the present application are a battery cell, a battery, an electric apparatus, and an energy storage device. The battery cell comprises a casing. The casing comprises a casing body and an end cap, wherein the casing body is provided with an opening and comprises two first walls arranged opposite to each other in a first direction and two second walls arranged opposite to each other in a second direction, and the area of an outer surface of the first wall is smaller than the area of an outer surface of the second wall; the first wall comprises a first opening portion and a first body portion, which are distributed in sequence in a third direction, the third direction being parallel to the thickness direction of the end cap, and the first body portion being far away from the opening relative to the first opening portion; the end cap is connected to the first walls and the second walls and seals the opening; the dimension of the first wall in the second direction is W1, the dimension of the second wall in the first direction is W2, and the dimensions satisfy 0.2≤W1/W2; and the thickness of the first opening portion is greater than the thickness of the first body portion, and the second direction, the third direction and the first direction are perpendicular to each other in a pairwise manner. On the basis of the technical solution in the present application, the reliability of the battery can be improved.
Resumen de: EP4686028A2
The present disclosure relates to a redundant power device, and an object of the present disclosure is to provide a redundant power topology that can ensure normal operation of a battery management system (BMS) by securing normal operating power of the BMS even when a disconnection occurs in a cable connecting a battery cell and the BMS or an abnormality or failure occurs in an uppermost battery cell. The present disclosure provides a configuration of switching a power supply cable to a processor so that power is supplied to the processor through a sub-cable when an abnormality occurs in a main cable.
Resumen de: EP4685931A1
According to one aspect of the present disclosure, a battery module with an improved stability against swelling is disclosed. A battery module according to one aspect of the present disclosure may include a cell assembly having a plurality of battery cells stacked in at least one direction; a module case configured to accommodate the cell assembly in an inner space; and a thermally conductive member interposed between the cell assembly and the module case, and configured to transfer heat and have a bonding force that varies across portions.
Resumen de: EP4685109A1
The present invention discloses a plasma modification preparation method of a silicon-carbon composite material, and a silicon-carbon composite material and a use thereof. The preparation method includes at least operation steps of: S10). placing aminated porous carbon in a deposition chamber, introducing a silane gas into the deposition chamber, and depositing nano-silicon in the aminated porous carbon, to obtain a silicon-carbon precursor material; S20). transferring the silicon-carbon precursor material to a plasma method modification chamber, introducing a halogen gas in a plasma manner, and depositing generated halide ions on a surface of the silicon-carbon precursor material, to obtain a silicon-carbon precursor material coated with halogenated carbon; and S30). stopping introducing the halogen gas, and introducing a carbon source gas in the plasma manner, to obtain the silicon-carbon composite material. The obtained silicon-carbon composite material has a stable core-shell structure, which can significantly alleviate silicon expansion problems and significantly improve cycle performance of a battery to which the silicon-carbon composite material is applied. In addition, the present application has a simple process, the silicon-carbon material is modified according to a plasma method, and the silicon-carbon composite material is easily prepared in batches and is easily industrialized on a scale.
Resumen de: EP4685902A1
A Na-ion bioeliminable electrochemical accumulator comprising electrode pellets coated by a current collector thin film, Associated manufacturing process and wireless charging solution.The invention concerns a sodium-ion (Na-ion) bioeliminable accumulator comprising:- a substrate (21) of an active biodisintegrable electrode material comprising two main faces, one of which supports at least one bioresorbable thin layer forming a current collector (20), in defining a cathode (2);- a substrate (21) of an active biodisintegrable electrode (31) material comprising two main faces, one of which supports at least one bioresorbable thin layer forming a current collector (30), in defining an anode (3);- a biocompatible and degradable polymer electrolyte (10), dried and sandwiched between the two main faces of the cathode (2) and anode (3), opposite to the ones supporting the current collectors (20, 30).
Resumen de: EP4685928A2
Die Erfindung betrifft ein Zelltrennelement (16) zur Anordnung zwischen zwei Batteriezellen (14), das eine Außenwandung (22) umfasst, die einen Innenraum (24) umschließt, und die eine erste Außenwand (22a) und eine gegenüberliegende zweite Außenwand (22b) bereitstellt, einen im Innenraum (24) befindlichen ersten Kühlbereich (28), der an die erste Außenwand (22a) angrenzt, und der einen ersten Kühlkanal (38) umfasst, und einen im Innenraum (24) befindlichen zweiten Kühlbereich (30), der an die zweite Außenwand (22b) angrenzt, und der einen zweiten Kühlkanal (40) umfasst. Dabei umfasst das Zelltrennelement (16) eine im Innenraum (24) angeordnete Kompressionsschicht (26) aus einem elastisch deformierbaren Material, wobei die Kompressionsschicht (26) zwischen dem ersten und zweiten Kühlbereich (28, 30) angeordnet ist, und eine ihr zugeordnete erste Kompressibilität (K1) zumindest bezüglich der ersten Richtung (x) größer ist als eine jeweilige dem ersten und zweiten Kühlbereich (28, 30) zugeordnete zweite Kompressibilität (K2).
Resumen de: EP4685943A1
A battery cell (20), a battery (100), and an electric device. The battery cell (20) comprises: a housing assembly (21), which comprises a housing (211) and a cover plate (212), wherein the housing (211) has an opening (211a), the cover plate (212) covers the opening (211a), the cover plate (212) has a peripheral side surface (212a), the peripheral side surface (212a) and/or the housing (211) is provided with a groove (24), a connecting portion (25) for sealing the opening (211a) is formed between the housing (211) and the cover plate (212), and the connecting portion (25) is at least partially accommodated in the groove (24); an electrode terminal (22), the electrode terminal (22) being arranged on the housing (211) or the cover plate (212); and an electrode assembly (23), the electrode assembly (23) being arranged in the housing (211) and being electrically connected to the electrode terminal (22).
Resumen de: EP4685948A1
The present invention provides a housing, a battery cell, a battery, and an electrical device. An end portion of the housing along a first direction is provided with a housing opening, the housing comprises a first side plate and a second side plate arranged along the circumferential direction of the housing opening, a connecting plate is connected to the first side plate and the second side plate, at least part of an outer surface of the connecting plate comprises a curved face, the connecting plate comprises a first plate portion and a second plate portion, and on the first direction, the second plate portion is located on the side of the first plate portion close to the housing opening. The maximum thickness of the second plate portion is greater than or equal to the maximum thickness of the first plate portion. The embodiments of the present application can reduce the risk of cracking and damage at a welding position between the second plate portion and an end cover caused by housing deformation or battery cell vibration due to factors such as expansion stress of an electrode assembly, and improve the usage reliability of the battery cell.
Resumen de: EP4685896A1
An electrode assembly (100) includes: a first electrode (110); a second electrode (120) on the first electrode (110) in a first direction (X); and a separator (130) between the first electrode (110) and the second electrode (120). The first electrode (110), the second electrode (120), and the separator (130) are wound in a jelly roll shape about a winding axis (WA) extending in a second direction (Y) intersecting the first direction (X). The first electrode (110) has a first front uncoated region (111) adjacent to the winding axis (WA) in the first direction (X) and extending around the winding axis (WA) by at least two turns.
Resumen de: EP4685060A2
Applicator device for applying a fastening element to a multilayer semi-finished product comprises an applicator drum, a feeding device configured to supply said fastening element to said applicator drum at a pick-up position, and a storage and dispensing unit. The feeding device comprises a pair of guide rollers and at least one abutment roller, at least one of said guide rollers being a motorised roller. The fastening element is partially wound onto a first roller of the guide rollers and passes between said guide rollers making the fastening element advance in the advancement direction. The applicator drum and the abutment roller are susceptible to move towards each other by moving the applicator drum towards the abutment roller, the abutment roller being configured in such a way as to urge the fastening element against the applicator drum.
Resumen de: EP4685940A1
Embodiments of the present application disclose a battery cell, a battery, and a power consuming device. The battery cell includes an electrode assembly and a case. The electrode assembly includes a negative electrode plate. The negative electrode plate includes a negative electrode active material with a metal ion reversely deintercalated and intercalated. The negative electrode active material includes a silicon-based material. The case is configured to accommodate the electrode assembly. At least a portion of regions of the case has a yield strength of Re at a temperature of 25°C, where Re satisfies: 140 MPa≤Re≤1000 MPa. According to the battery cell, the battery, and the power consuming device in the embodiments of the present application, the reliability of the battery cell can be improved.
Resumen de: EP4685870A1
An anode material includes a silicon-based core and a carbon layer coated on at least part of a surface of the silicon-based core. The silicon-based core includes nano-silicon and a silicate containing a metal M element. The anode material is subjected to section and energy spectrum analysis, k1≤10, k2≤5, and 0.1
Resumen de: EP4685995A1
A battery cell (20), a battery (100), and an electrical device. The battery cell (20) comprises a casing (21) and a first sealing member (23). The casing (21) comprises a first wall (213), and the first wall (213) is provided with a liquid injection hole (2130); and the first sealing member (23) is configured to seal the liquid injection hole (2130), the first sealing member (23) and the first wall (213) are welded and form a connecting portion (230), the connecting portion (230) is provided around the liquid injection hole (2130), and the connecting portion (230) is exposed to the surface of the first sealing member (23) facing away from the first wall (213). The solution can improve the reliability of the battery (100).
Resumen de: EP4685502A1
A relay diagnostic circuit for performing diagnosis on a positive main relay and a negative main relay that control a connection between a battery pack and an external electrical device includes: a detection voltage source; a first resistor and a second resistor connected in series between a first connection terminal and a second connection terminal; a third resistor and a fourth resistor connected in series between a first node to which the first resistor and the second resistor are connected and a negative electrode of the battery pack; a fifth resistor and a sixth resistor connected in series between a second node to which the third resistor and the fourth resistor are connected and the negative electrode of the battery pack; a connection switch connected between the detection voltage source and a third node; a seventh resistor connected between the third node and the first node; an eighth resistor and a ninth resistor connected in series between the third node and the negative electrode of the battery pack; and a tenth resistor and an eleventh resistor R21 and R22 connected in series between a fourth node N4 to which the eighth resistor and the ninth resistor are connected and the negative electrode of the battery pack.
Resumen de: EP4685869A1
The present disclosure relates to a positive electrode material for a lithium secondary battery comprising: a first positive electrode active material containing lithium-rich manganese-based oxide; and a second positive electrode active material having one or more particles in the form of a single particle consisting of one nodule or a pseudo-single particle that is a composite of 30 or fewer nodules, and containing lithium transition metal oxide, wherein the first positive electrode active material has a D50 of 8 µm or more, and has a larger value than the D50 of the second positive electrode active material, and to a positive electrode slurry, positive electrode and lithium secondary battery comprising the positive electrode material.
Resumen de: EP4685909A1
Embodiments of the present application provide an assembly apparatus and an assembly method. The assembly apparatus is configured to assemble a battery cell. The assembly apparatus includes a first guide rail mechanism, where the first guide rail mechanism is located at a housing entry station, a gap is formed between the first guide rail mechanism and an adjacent second guide rail mechanism; a moving mechanism configured to convey an electrode assembly of the battery cell to the housing entry station; and a pressure measurement mechanism fixedly connected to the first guide rail mechanism, where the pressure measurement mechanism is configured to support weights of the first guide rail mechanism and the moving mechanism located on the first guide rail mechanism, and measure a pressure experienced by the electrode assembly during the process of placing the electrode assembly inside a housing. The assembly apparatus and assembly method of the embodiments of the present application can improve the processing efficiency of battery cells.
Resumen de: EP4685977A1
A separator, and a secondary battery and an electric device respectively comprising the separator. The separator comprises a base film; and the base film comprises nanocellulose. When the separator is heated from an initial temperature T0 to T1 at a heating rate of 5-10°C/min, the porosity P of the separator satisfies: (P0-P1)/P0≤5%, wherein 30°C≤T1-T0≤60°C, 80°C≤T0≤100°C, P0 is the porosity of the separator at T0, and P1 is the porosity of the separator at T1 .
Resumen de: EP4685956A1
Pressing device (1) for a battery cell stack comprising a plurality of holders (2) arranged consecutively in the stacking direction. The holders (2) move apart or move closer together with an increase or a decrease in the thickness of the battery cells (11), and are coupled together by means of joints formed by a projection (8) arranged in one of the holders (2) and a housing (7) arranged in the adjacent holder (2). The housing (7) comprises an open contour (72), and the projection (8) is housed in the housing (7). The projection (8) or the open contour (72) comprises an elastic section (21) that allows the holders (2) to move apart and to move closer together, the projections (8) and the housings (7) being configured so that the holders (2) exert a determined force on the battery cells (11) in the stacking direction.
Resumen de: EP4685918A1
Die Erfindung betrifft ein Verfahren zum Überwachen eines Formierungsprozesses einer Batteriezelle (14) mittels einer Formierungsvorrichtung (10), mit den Schritten: Laden der Batteriezelle (14) mit zumindest einem ersten Formierungsstrom (26) mittels einer Ladeeinrichtung (16) der Formierungsvorrichtung (10); Durchführen zumindest einer Impedanzmessung (32) während des Formierungsprozesses mittels einer Erfassungseinrichtung (18) der Formierungsvorrichtung (10); Vorgeben eines Ersatzschaltbildes der Batteriezelle (14) im Formierungsprozess mittels einer elektronischen Recheneinrichtung (20) der Formierungsvorrichtung (10); Bestimmen von zumindest einem Parameter (30) des Ersatzschaltbildes in Abhängigkeit von der durchgeführten Impedanzmessung (32) mittels der elektronischen Recheneinrichtung (20); und Überwachen des Formierungsprozesses in Abhängigkeit von dem bestimmten zumindest einem Parameter (30) mittels der elektronischen Recheneinrichtung (20). Ferner betrifft die Erfindung ein Computerprogrammprodukt, ein computerlesbares Speichermedium sowie eine elektronische Recheneinrichtung (20).
Resumen de: EP4685974A1
The present invention relates to a method for manufacturing an electrode-integrated separator for lithium secondary batteries. According to the present invention, a method for manufacturing an electrode-integrated separator is provided, which can minimize defects such as pinholes while exhibiting excellent interlayer bonding durability.
Resumen de: EP4685988A1
The present application provides a battery cell, a battery, and an electrical apparatus, which belongs to the field of battery technologies. The battery cell comprises an electrode assembly, a case, and a current collector end cover. The electrode assembly comprises a first tab. The case is formed with an accommodating cavity for accommodating the electrode assembly and an opening at one end of the accommodating cavity. The current collector end cover is connected to the case to close the opening. The current collector end cover comprises a tab connecting portion and a case connecting portion connected to each other. The tab connecting portion is connected to the first tab, and the case connecting portion is connected to the case.
Resumen de: EP4685989A1
Provided is a battery cell comprising: an electrode tab assembly in which a plurality of electrode tabs extending from a plurality of electrode plates to one side are stacked; a case in which the plurality of electrode plates are accommodated; and a lead tab electrically connected to the electrode tab assembly and having at least a portion exposed to the outside of the case. The electrode tab assembly includes: a first connection part formed by welding and coupling at least some of the plurality of electrode tabs to each other, and a second connection part extending from the first connection part and welded and coupled to the lead tab, wherein the number of electrode tabs constituting the second connection part is smaller than the number of electrode tabs constituting the first connection part.
Resumen de: EP4685971A1
The present invention provides a structure of a battery module containing a battery cell laminate comprising a plurality of pouch-type battery cells and a plurality of compressible pads stacked therein in widthwise direction, wherein each of the plurality of pouch-type battery cells is provided with a terrace portion at each of two lengthwise ends thereof, the terrace portion being thinner than other portions thereof, and each of the plurality of compressible pads is provided with a packing portion at each of two lengthwise ends thereof, the packing portion protruding in one side or two sides of the widthwise direction and being in contact with the terrace portion in the widthwise direction.
Nº publicación: EP4685917A1 28/01/2026
Solicitante:
SIEMENS AG [DE]
Siemens Aktiengesellschaft
Resumen de: EP4685917A1
Die Erfindung betrifft ein Verfahren zum Überwachen eines Formierungsprozesses (14) einer Batteriezelle (12) mittels einer Formierungsvorrichtung (10), mit den Schritten: Laden der Batteriezelle (12) mit zumindest einem ersten Formierungsstrom (22) mittels einer Ladeeinrichtung (16) der Formierungsvorrichtung (10); Erfassen eines akustischen Ist-Signals (30) der Batteriezelle (12) während des Formierungsprozesses (14) mittels einer akustischen Erfassungseinrichtung (18) der Formierungsvorrichtung (10); und Überwachen des Formierungsprozesses (14) durch Vergleichen des akustischen Ist-Signals (30) mit einem vorgegebenen akustischen Soll-Signal (32) mittels einer elektronischen Recheneinrichtung (20) der Formierungsvorrichtung (10). Ferner betrifft die Erfindung ein Computerprogrammprodukt, ein computerlesbares Speichermedium sowie eine Formierungsvorrichtung (10).
BOPI
Sede Electrónica
