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828
resultados
Última actualización
28/12/2025 [07:08:00]
Resultados 25 a 50 de 828
Resumen de: EP4667367A1
Interchangeable external battery, battery fastening module for a rotor-powered drone and system for fastening an interchangeable external battery. The interchangeable external battery includes a super-toroidal housing with several contained cells and wiring to electrically connect to the outside of the housing. In use, it allows in-flight interchange by another concentric battery of larger or smaller radius that can be located inside or outside the rotors. The battery fastening module includes radially distributed arms defining a central zone for housing the drone body, a pair of perimeter zones, an inner zone for housing a first interchangeable external battery and an outer zone for housing a second interchangeable external battery, such that the first and second batteries are concentric with coupling elements for joining, mechanically and/or electromagnetically, with a complementary coupling element of the batteries, with an electrical connection to power the drone.
Resumen de: EP4668432A1
A battery pack assembly (100) and a vehicle battery. The assembly comprises battery cells (1) comprising cell degassing elements (6). The battery pack assembly (100) further comprises a safety arrangement (2), comprising a cavity (3) provided between a proximal wall (4) and a distal wall (5). The proximal wall (4) is arranged proximate to the plurality of battery cells (1), and the distal wall (5) is arranged distal to the plurality of battery cells (1). The cavity (3) is configured to communicate with the cell degassing elements (6) through said proximal wall (4). The safety arrangement (2) further comprises an exit unit (7) connected in fluid communication with the cavity (3) by a port (8), the degassing unit (7) comprising a vent (9) leading out from the safety arrangement (2). The exit unit (7) is arranged on a second side (14) of the plurality of battery cells (1), said second side (14) being arranged at least substantially orthogonally to the proximal wall (4) of the cavity.
Resumen de: EP4667164A1
A lockout device for preventing a battery pack from attaching to a battery interface of a power tool, the battery interface being for mechanically and electrically engaging a battery pack to the power tool, the battery interface comprising a retention device for mechanically securing the battery pack to the battery interface, the lockout device comprising: a coupling configured for engagement with the retention device of the battery interface to prevent a battery pack from being attached to the battery interface.
Resumen de: EP4668420A1
Dargestellt und beschrieben ist ein Verfahren für eine Profilieranlage (1) zur Herstellung eines geschlossenen Profils (2) für ein dichtes Gehäuse (3) für eine elektrische Zelle. Die Profilieranlage (1) weist eine Prägevorrichtung (4), eine erste Stanzvorrichtung (5), eine erste Fügevorrichtung (8), eine zweite Fügevorrichtung (9), eine Profiliervorrichtung (10) und eine Trennvorrichtung (11) auf.Aufgabe der vorliegenden Erfindung ist die Angabe eines Verfahrens für die Profilieranlage (1) zur Herstellung eines geschlossenen Profils (2) mit einem Überdruckventil, welches kostengünstiger als im Stand der Technik herstellbar ist oder zumindest eine Alternative darstellt.Die Aufgabe ist durch ein Verfahren mit den folgenden Schritten gelöst: Einprägen einer Sollberststelle (26) durch die Prägevorrichtung (4) in ein Berstmetallband (21) zur Zwangsentlüftung bei einem Berstdruck. Stanzen einer Öffnung (27) durch die erste Stanzvorrichtung (5) in ein Profilmetallband (22) mit einer ersten Bandkante (24) und einer zweiten Bandkante (25) passend zur Sollberststelle (26). Stoffschlüssiges Fügen des Profilmetallbands (22) und des Berstmetallbands (21) aufeinander durch die zweite Fügevorrichtung (9), sodass die Sollberststelle (26) und die Öffnung (27) im Profilmetallband (22) passend zueinander sind. Rollformen des Profilmetallbands (22) in ein Profil durch die Profiliervorrichtung (10). Stoffschlüssiges Fügen der ersten Bandkante (24) und der zweiten Bandkante (2
Resumen de: EP4668458A1
Disclosed in the present application are a separator, a preparation method for a separator, and an electrochemical device. The separator comprises a bonding layer, and a base film and a gel film which are respectively arranged on two sides of the bonding layer. In the present application, the gel film has relatively good ductility and deformation resistance, is not prone to be being pierced or still completely covers a pierced position after being pierced, such that the separator still plays a role in separating positive and negative electrodes; and the base film has relatively good shape-retaining capability and self-supporting performance. The base film and the gel film are respectively provided on the two sides of the bonding layer, such that the gel film and the base film are bonded into a whole under the bonding action of the bonding layer, and thus when there is an external force acting in the vertical direction of the separator, the separator deforms but is not prone to breaking, thereby delaying the breakage of the separator and improving the stability and safety of a battery.
Resumen de: EP4668427A1
The present invention relates to a secondary battery including an electrode assembly, an exterior film having an inner space which accommodates the electrode assembly, and an exterior opening which allows the inner space to communicate with outside, and a cover member which covers the exterior opening of the exterior film, wherein the cover member includes a first member which blocks the exterior opening, and a second member which extends from the first member and is coupled to an inner surface of the exterior film.
Resumen de: EP4668531A1
Embodiments of this application provide a battery and a power consumption system. After the battery is connected to a load, to make full use of an available capacity of a cell group, a processor in the battery may determine an open-circuit voltage of the cell group or a state of capacity of the cell group. A DC-DC conversion circuit supplies power to the load in a first discharge mode or a second discharge mode based on the determined open-circuit voltage of the cell group or the determined state of capacity of the cell group. The first discharge mode is supplying power to the load based on a discharge curve of the cell group, the second discharge mode is supplying power to the load based on a first specified voltage, and the first specified voltage is within a working voltage range of the load.
Resumen de: EP4667543A1
A coating composition for a separator membrane, a composite separator membrane, a battery cell, a battery, and an electrical appliance, the coating composition for a separator membrane comprising: porous phenolic resin microspheres and a binder, the mass ratio of the binder to the porous phenolic resin microspheres being between 1:1 to 1:20. By using the described coating composition, a coating may be prepared on the surface of a base membrane to obtain a composite separator membrane, which may effectively reduce the thermal shrinkage rate of the base membrane and improve the safety of a battery cell. In addition, since no significant impact is made on the gas permeability of the base membrane, the composite separator membrane obtained thereby exhibits excellent ionic conductivity. Therefore, the battery cell may have a high capacity retention rate while ensuring good safety performance.
Resumen de: EP4668401A1
The present application discloses an electrolyte for a lithium secondary battery, a secondary battery, and an electric device. The electrolyte for a lithium secondary battery includes a sulfate ester and difluorophosphate ions, a molar ratio of the sulfate ester to the difluorophosphate ions is (0.2 to 30):1, and a molar concentration of the sulfate ester is 0.04 mol/L to 0.16 mol/L.
Resumen de: EP4668359A1
The present application provides a sodium-doped lithium-rich metal oxide material and a preparation method thereof, a positive electrode material, a positive electrode plate, a battery, and an electric apparatus. The sodium-doped lithium-rich metal oxide material includes a compound Li<sub>m-x</sub>Na<sub>x</sub>MO<sub>y</sub>. The sodium-doped lithium-rich metal oxide material of the present application facilitates reducing the resistance to lithium-ion extraction from the crystal lattice, thereby increasing the charging capacity of the battery.
Resumen de: EP4668413A1
A battery pack includes enclosure plates (1), a liquid cooling plate (2) and battery cells (3). The battery cells (3) are mounted on the liquid cooling plate (1), the enclosure plates (1) surround the liquid cooling plate (2) and the battery cells (3), and the liquid cooling plate (2) is connected to the enclosure plates (1); an accommodating cavity (4) is provided between the enclosure plates (1) and the battery cells (3); the liquid cooling plate (2) is connected with an outlet pipe (20) and an inlet pipe (21), and the outlet pipe (20) and the inlet pipe (21) are both located in the accommodating cavity (4); a top surface and a bottom surface of an enclosure plate (1) are each provided with a connecting component.
Resumen de: EP4667862A1
A heat exchange plate includes a first side plate (1) and a second side plate (2) arranged opposite to the first side plate. The first side plate (1) is of an aluminum structure or an aluminum alloy structure. A groove (3) for forming a heat exchange channel (7) is formed in one side of the second side plate (2) facing the first side plate (1). The second side plate (2) includes a main body layer (21) and a protective layer (22) located between the main body layer (21) and the first side plate (1). A thickness of the second side plate (2) located in an area outside the groove (3) is g mm, a depth of the groove (3) is d mm, and a thickness of the protective layer (22) located in the area outside the groove (3) is x mm, x×0.01×(1-(4.55d-5.36)) > λ×g, and λ is equal to 10%.
Resumen de: EP4668426A1
A cover plate assembly includes a cover plate body (1), a pole (2) and a fixing structure (3), wherein the pole (2) is provided on the cover plate body (1); and the fixing structure (3) is fixed on the cover plate body (1), the fixing structure (3) includes a plurality of hems (31), the plurality of hems (31) are provided at intervals around one same pole (2), and the hems (31) are used for fixing the pole (2), wherein each of the hems (31) includes an outer edge (313) remote from the pole (2), a maximum distance between the outer edges (313) of different hems (31) is D, and a maximum width of the cover plate body (1) is L, wherein D/L is 1-2.
Resumen de: EP4668380A1
The present disclosure provides an electrode assembly comprising:a laminate body including a positive electrode, a negative electrode, and a separator interposed between the positive electrode and the negative electrode, and one or more pairs of tapes for fixing the exterior of the laminate body,wherein the pair of tapes includes non-overlapping portions that do not overlap with each other, and overlapping portions that overlap with each other, andwherein a width of the non-overlapping portions is larger than a width of the overlapping portions, and a secondary battery comprising the same.
Resumen de: EP4668455A1
A battery separator and a preparation method therefor, and a secondary battery and an electric device, which relate to the field of batteries. The battery separator comprises a base film 10 and a coating 20, wherein the coating 20 is arranged on a surface of the base film 10 on the side that faces a cathode of a battery, and the materials of the coating 20 comprise a conductive material and an insulating material. When the battery separator which is obtained by arranging the coating 20 on the surface of the base film 10 on the side that faces the cathode of the battery is applied to a lithium battery, and when lithium dendrites grow to completely penetrate the side of the base film 10 which is not provided with the coating 20, the lithium dendrites are intercepted by the arranged coating 20, and do not come into direct contact with the cathode; moreover, a low-current micro-short circuit is formed by the coating 20, thereby extending the time from a short circuit to a serious accident occurring.
Resumen de: EP4668344A1
This application provides a positive electrode active material, a preparation method thereof, and a positive electrode plate, a battery, and an electric apparatus including the same. The positive electrode active material includes a layered transition metal oxide represented by Formula (I), with parameters as defined herein. The positive electrode active material includes a K element, and an amount of the K element decreases from a particle surface to a particle interior of the positive electrode active material. NaxKyMaAbBcOmQn Formula (I)
Resumen de: EP4668460A1
Battery module (10) and battery pack are provided. Battery module (10) includes: body and second conductive sheet (2). Body has first conductive sheet (13) and electrode base. Second conductive sheet (2) has one end connected to first conductive sheet (13) and fixed to electrode base and other end configured to be connected to adjacent battery module (10). Second conductive sheet (2) is provided with first groove (21), first conductive sheet (13) extends into first groove (21), and conductive block (3) is further provided between first groove (21) and first conductive sheet (13). First conductive sheet (13) extends into first groove (21), which increases contact area between first and second conductive sheets, reduces resistance among battery modules, reduces amount of heat from second conductive sheet (2), and improves efficiency of transfer of current among battery modules (10). Conductive block (3) is provided between first groove (21) and first conductive sheet (13), which increases cross-sectional area at junction between second and first conductive sheets, and further reduces resistance among battery modules.
Resumen de: EP4667542A1
Provided are an aqueous coating composition, an aqueous pole piece, and an aqueous battery. The aqueous coating composition includes an aqueous binder and a solvent, the aqueous binder includes a first polymer, and the first polymer includes a structural unit represented by formula (1) and a structural unit represented by formula (2); in formula (1), R<sub>1</sub>, R<sub>2</sub> and R<sub>3</sub> are each independently hydrogen, a halogen, an alkyl, a hydroxyalkyl, an alkoxylate, a cycloalkyl, an alkenyl, an alkynyl, a heterocycloalkyl, an aryl, a heteroaryl, a hydroxyl, a cyano group or a nitro group, and L is a connecting bond or a C1-10 alkylene group; in formula (2), R<sub>4</sub>, R<sub>5</sub> and R<sub>6</sub> are each independently hydrogen, a halogen, an alkyl, a hydroxyalkyl, an alkoxy, a cycloalkyl, an alkenyl, an alkynyl, a heterocycloalkyl, an aryl, a heteroaryl, a hydroxyl, a cyano group or a nitro group, and n = 2-12. The aqueous coating composition can improve the adhesion and water resistance of an aqueous coating, thereby improving the safety performance and cycle performance of an aqueous battery.
Resumen de: EP4668398A1
The present application provides a positive electrode active material, a preparation method thereof, and a positive electrode plate, a battery cell , a battery, and an electric device containing the same, where the positive electrode active material includes a matrix and a sodium-rich layer formed in situ on the surface of the matrix, the matrix includes a sodium-containing layered transition metal oxide, and the sodium-rich layer includes one or more of sodium salts represented by Formula (I) and Formula (II), where m represents an integer from 1 to 8, and n represents an integer from 2 to 20.
Resumen de: EP4668464A1
A busbar assembly, a cylindrical power battery module, and a battery pack are provided. The busbar assembly includes: an input bar connected to a battery cell at an input end of a cylindrical power battery module; an output bar connected to a battery cell at an output end of the cylindrical power battery module; current conduction bars arranged between the input bar and the output bar and configured to work in conjunction with the input bar and the output bar to connect in series in a first direction two adjacent battery cells arranged in the first direction and connect in parallel in a second direction two adjacent battery cells arranged in the second direction; and a wiring harness member, where an input end thereof is connected to at least one of the input bar, the output bar, the current conduction bars, and multiple battery cells
Resumen de: EP4667294A1
A power distribution apparatus (100), a battery, and a power consuming device. The power distribution apparatus (100) includes a first electrical component (110) and a second electrical component (120). The first electrical component (110) includes a first electrical connection structure (111). The second electrical component (120) includes a second electrical connection structure (121). The first electrical connection structure (111) and the second electrical connection structure (121) are spaced apart. An insulating member (130) is provided between the first electrical connection structure (111) and the second electrical connection structure (121).
Resumen de: EP4668509A1
A power distribution apparatus (100), a battery (1100), and a power consuming device are provided. The power distribution apparatus (100) includes an electrical assembly (110); the electrical assembly (110) includes at least two electrical members (1101); among the at least two electrical members (1101), an electrical member having a maximum size in a first direction is a first electrical member (111); a size of the first electrical member (111) in the first direction is not greater than sizes of the first electrical member (111) in other directions; and a ratio of a size of the electrical assembly (110) in the first direction to the size of the first electrical member (111) in the first direction is M, where 1≤M≤1.2. Therefore, it is possible to make the size of the power distribution apparatus in the first direction small, and the whole power distribution apparatus can be flat, so that a space occupied by the power distribution apparatus in a preset direction can be reduced, thereby providing a larger mounting space for other components, reducing the arrangement difficulty of the other components, improving the structural compactness of the power consuming device and the battery, facilitating improvement of the performance of the battery and the power consuming device, and reducing manufacturing costs of the power consuming device and the battery.
Resumen de: EP4668499A1
A power distribution apparatus (100), a battery (1100), and a power consuming device are provided. The power distribution apparatus (100) includes a first electrical member (110) and a second electrical member (120). The first electrical member (110) includes a first connection terminal (111), and the first connection terminal (111) is configured to electrically connect the first electrical member (110) to another electrical member; and a first gap (1001) is formed between the second electrical member (120) and the first electrical member (110), where the first connection terminal (111) is located outside the first gap (1001), so that a connection operation space required by the first connection terminal (111) is moved out of the first gap (1001), thereby reducing the spacing between the first electrical member (110) and the second electrical member (120), and improving the structural compactness of the entire power distribution apparatus (100), which is beneficial to reducing the outline size of the entire power distribution apparatus (100), and is also beneficial to improving performance of a power consuming device and reducing costs of the power consuming device.
Resumen de: WO2024173731A1
An example embodiment includes a battery having a plurality of battery modules, each battery module comprising a plurality of battery cells; a pressure control system configured to provide fluid having a target fluid pressure that achieves a target pressure to be applied to respective battery cells of a battery module; and a thermal control system configured to supply coolant to the battery module to achieve a target temperature.
Nº publicación: EP4666339A1 24/12/2025
Solicitante:
WORCESTER POLYTECH INST [US]
Worcester Polytechnic Institute
Resumen de: WO2024173471A1
An iron anode employs an electrolyte for generating an anode reaction to convert between Iron II and Iron III ions, denoted by Fe(OH)2 and FeOOH, rather than tending towards formation of highly stable Fe3O4, which can tend to cause "dead" regions in the battery. A suitable battery chemistry includes iron-air and other iron metal batteries operable with an aqueous electrolyte and employing oxygen and water cathodes. The iron anode battery employs inexpensive available iron, rather than more expensive and/or volatile materials used in Li-ion and lead-acid batteries. An aqueous electrolyte formed from sodium hydroxide and silicates, optionally with potassium or chloride salts, forms an anode reaction with nanostructured iron oxide particles in a safe and stable battery chemistry which is readily scalable for grid storage.
BOPI
Sede Electrónica
