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1482
resultados
Última actualización
03/04/2026 [07:26:00]
Resultados 375 a 400 de 1482
Resumen de: EP4718525A1
The present invention provides a positive electrode material and a preparation method thereof, and a lithium-ion battery. The positive electrode material includes a core, an oxygen-absorbing layer, and a passivation layer in sequence from inside to outside; the core includes an oxide composed of Ni, Li, a metal element M, and a non-metal element Q; the metal element M includes at least one of Mg, Al, Zr, Ca, Ti, Sr, Y, Nb, Mo, W, Ta, or Ce; the non-metal element Q includes at least one of F, B, P, or Si; the oxygen-absorbing layer is an unsaturated oxide including a coating element L; the coating element L includes at least one of V, Ga, In, Sn, Bi, Ce, Pr, or Sb; the passivation layer is a compound including element F. In the present invention, the effect of suppressing evolution of gaseous oxygen can be achieved by the functional design of different layered structures for the positive electrode material.
Resumen de: EP4718581A1
A vehicle battery heat transfer member according to one embodiment of the present invention, which is disposed between battery cells to transfer heat generated in the battery cells toward a cooling plate, may include a main plate in which cooling channels are formed such that an operating fluid passes through the cooling channels and cover plates coupled to both surfaces of the main plate, wherein a bridge part connecting the cooling channels in a width direction may be formed between the cooling channels in the main plate.
Resumen de: EP4718584A1
Embodiments of the present application provide a charge-discharge circuit, a method, a computing device, and a storage medium thereof, where a regulation switch module is connected between a first energy storage element and a second switch module, utilizing an alternating current generated by a charge-discharge loop between a drive motor and a battery to achieve battery self-heating. The present application enables flexible adjustment of the charge-discharge loop between a power battery and an energy storage element. The present application particularly achieves battery heating in a dual-drive motor scenario, enabling flexible adjustment of the charge-discharge of dual-drive motors for battery self-heating solutions while reducing costs, to meet heating demands in various scenarios.
Resumen de: EP4718557A1
The present application discloses a lithium secondary battery and an electrical apparatus. The lithium secondary battery includes a positive electrode plate and an electrolyte solution, where the positive electrode plate includes a positive electrode active material layer containing a positive electrode active material, and the positive electrode active material includes at least one doping element selected from aluminum, zirconium, boron, magnesium, zinc, calcium and titanium; the electrolyte solution includes a silane-based first additive containing C2-C8 alkenyl and a second additive, and the second additive is selected from at least one of lithium fluorosulfonate, lithium bis(fluorosulfonyl)imide and lithium tetrafluoroborate; and the ratio of the mass percentage content W1 of the first additive in the electrolyte solution to the mass percentage content W2 of the second additive in the electrolyte solution to the mass percentage content W3 of the doping element in the positive electrode active material satisfies 1:(0.2-2):(0.1-0.5). The lithium secondary battery of the present application has good cycling performance, kinetic performance and storage life.
Resumen de: EP4718534A1
This disclosure provides a positive electrode active material, a preparation method thereof, a secondary battery, and an electric apparatus. The positive electrode active material is an agglomerate of primary particles. The positive electrode active material internally contains pores located between the primary particles, and the longest connected distance of the pores is not less than 0.5 µm, optionally 1 µm to 5 µm. The positive electrode active material provided by this disclosure can provide expansion space for the anisotropic volume changes of the primary particles inside the positive electrode active material during cycling, thereby extending the cycle life of a battery. In addition, the interconnected pores are conducive to shortening a transmission path for metal ions (such as lithium ions) within the positive electrode active material, facilitating the deintercalation and intercalation of the metal ions, and further enhancing the kinetic performance of the battery and facilitating the capacity utilization of the battery.
Resumen de: EP4718560A1
The present application provides a non-aqueous electrolyte solution for a secondary battery, a secondary battery, and an electrical apparatus. The non-aqueous electrolyte solution for a secondary battery of the present application comprises an additive and a non-aqueous solvent, the non-aqueous solvent comprises dimethyl carbonate, and the additive comprises a cyclic sulfate compound as represented by formula (I);
Resumen de: EP4718595A1
A battery assembly (10), in particular for use in an electrical propulsion VTOL aircraft (100), comprises a plurality of battery stacks (12), and a venting system (59) with a venting plenum (62), each battery stack (12) comprising a plurality of battery cells (50) stacked in a stacking direction (V) and a pressure relief safety device (30) configured to discharge gas from the battery stack (12) into the venting plenum (62) when a pressure inside the battery stack (12) exceeds a given threshold, and wherein the battery stacks (12) of the assembly (10) are arranged side by side along a row direction (R) perpendicular to the stacking direction (V), the pressure relief safety device (30) of each stack (12) being provided on a battery stack wall (19) extending in parallel to the stacking direction (V) and to the row direction (R), wherein the battery stack walls (19) are not formed as separate components but as a common continuous wall (21) attached to and connecting all the battery stacks (12) of the assembly (10), and wherein the venting system (59) is a venting cover (60) sealingly attached to and covering the common continuous wall (21).
Resumen de: EP4718577A1
The present invention relates to a casing wall structure (100) for a battery assembly (10), wherein the battery assembly (10) comprises at least one stack (12) of battery cells (14), and a casing with a base plate (16) and a top plate (18), the casing wall structure (100) comprising an inner wall (102) facing the battery cell stack (12), an outer wall (104) facing to the outside of the battery assembly (10), and a cold plate (106) which is sandwiched between the inner wall (102) and the outer wall (104), wherein the inner wall (102) is at least partially formed with a smaller thickness than the outer wall (104). The invention further relates to a battery assembly comprising such at least one such casing wall structure and an electrical propulsion aircraft comprising at least one such battery assembly.
Resumen de: EP4717390A1
Welding preparation device (1) for preparing at least two battery cell tabs (P1, P2) for welding comprising: a clamping mechanism (2) comprising: a support part (3); and a clamping part (4) for clamping the at least two battery cell tabs (P1, P2) at a clamping force exertion portion (41) thereof together with the support part (3) therebetween within a clamping region (CR) by a clamping force along a clamping force direction. In order to improve welding quality, the clamping mechanism (2) has an access portion (7) which, in a clamped state, allows access to the clamping region (CR) in order to provide a weld seam to the battery cell tabs (P1, P2).
Resumen de: EP4718603A1
The invention is related to a Method for producing a battery device (10), in particular for use in an electric aircraft, comprising the following steps:- Providing a battery housing (20) with at least one cell compartment (30) having one receiving opening (32) and surrounding compartment walls (34) for holding a battery module (40) with multiple battery cells (42),- Stacking multiple battery cells (42) on top of each other to create at least one battery module (40),- Inserting the at least one battery module (40) into the at least one cell compartment (30) through the receiving opening (32),- Closing the receiving opening (32) of the at least one cell compartment (30).
Resumen de: EP4718511A1
A negative electrode for a secondary battery according to exemplary embodiments may include: a negative electrode current collector; a first negative electrode active material layer formed on at least one surface of the negative electrode current collector and including a first negative electrode active material which contains at least one of a first carbon-based active material or a first silicon-based active material; and a second negative electrode active material layer formed on the first negative electrode active material layer and including a second negative electrode active material, which contains at least one of a second carbon-based active material or a second silicon-based active material, and a conductive polymer. Accordingly, resistance can be reduced without increasing the content of a conductive material, and rapid charging performance can be improved.
Resumen de: EP4718542A1
An electrode current collector according to the present invention includes a first metal layer, a second metal layer disposed facing the first metal layer, and a polymer resin layer disposed between the first metal layer and the second metal layer, wherein the polymer resin layer includes a first polymer resin layer in contact with the first metal layer and a second polymer resin layer in contact with the second metal layer, and when the first polymer resin layer includes a thermoplastic polymer material, the second polymer resin layer includes a thermosetting polymer material.
Resumen de: EP4717324A1
A work table according to an embodiment of the present invention includes a top plate which can place a work object thereon, a fire extinguishing tank which is arranged under the top plate and can store a fire extinguishing liquid therein, and a handle unit which can open and close the top plate covering the open upper surface of the fire extinguishing tank.
Resumen de: EP4718526A1
A lithium secondary battery according to embodiments of the present disclosure comprises: a positive electrode containing a first positive electrode active material; and a negative electrode containing a silicon-based active material, wherein the first positive electrode active material comprises: lithium-nickel metal oxide particles; and a coating layer disposed on the surface of the lithium-nickel metal oxide particles and including at least one selected from the group consisting of a lithium-phosphorus-containing compound, a lithium-sulfur-containing compound, a lithium-tungsten-containing compound, and a lithium-aluminum-containing compound. The lithium secondary battery of the present disclosure can achieve improvements in high-temperature lifespan characteristics and rapid charge/discharge lifespan characteristics and a reduction in the amount of gas generated.
Resumen de: EP4718488A1
Provided is a method of manufacturing a lead terminal for a power storage device, the lead terminal including: an electrode terminal (2) formed of a wire material (100) mainly containing aluminum or copper; and a lead wire (3) connected to the electrode terminal through intermediation of a welded portion (4), the method including: a first step of aligning the wire material and the lead wire in a straight line, and holding the wire material and the lead wire under a state in which a distance between an end surface (100b) of the wire material on the lead wire side and an end surface (3b) of the lead wire on the wire material side is maintained at a predetermined distance; a second step of applying, by a laser irradiation machine (400), a laser beam to an end portion (100a) of the wire material on the lead wire side to melt the end portion; and a third step of pushing one of the wire material or the lead wire toward another one of the wire material or the lead wire in an axial direction after an elapse of a predetermined time from a time point of start of irradiation with the laser beam in the second step to form the welded portion.
Resumen de: EP4718592A1
A power storage device packaging material at least includes a substrate layer, a barrier layer including a metal layer, an adhesive layer, and a sealant layer in this order. The adhesive layer contains a hydrophobic insulating inorganic filler. The content of the hydrophobic insulating inorganic filler in the adhesive layer may be 0.5 to 20 mass%.
Resumen de: EP4718508A1
Provided is an electrode for secondary batteries, which is capable of suppressing deterioration of rapid charge and discharge characteristics. An electrode (30) for secondary batteries constitutes a winding-type electrode body provided with a band-like core body (32) and a mixture layer (34) disposed on the core body (32), and is characterized in that: a longitudinal-direction-side first exposed portion (36), in which the mixture layer (34) is not disposed, is provided at one end part in the longitudinal direction of the core body (32); the longitudinal-direction-side first exposed portion (36) is covered with a first insulating portion (38); and a short-direction-side first exposed portion (44), in which the mixture layer (34) is not disposed, is provided at a position separated from both end parts in the longitudinal direction of the core body (32) at one end part in the short direction of the core body (32).
Resumen de: EP4718533A1
A vanadium oxide composite of the present disclosure includes: a particle including a vanadium oxide; and an electrically conductive material at least partially coating a surface of the particle. A surface coverage of the particle by the electrically conductive material is 30% or more. The vanadium oxide composite has an average particle size of 0.5 µm or more and 5.0 µm or less.
Resumen de: EP4718532A1
A vanadium oxide composite of the present disclosure includes: a particle including a vanadium oxide represented by a composition formula (1) Li3+x+aV1-xMxO4+a/2; and an electrically conductive material at least partially coating a surface of the particle. In the composition formula (1), 0 < a < 1 and 0 ≤ x < 1 are satisfied, and M is at least one element selected from the group consisting of a tetravalent metal element and a tetravalent metalloid element. The vanadium oxide composite has an average particle size of 0.5 µm or more and 5.0 µm or less.
Resumen de: EP4718531A1
A vanadium oxide composite of the present disclosure includes: a particle including a vanadium oxide represented by a composition formula (1) Li3+x+aV1-xMxO4+a/2; and an electrically conductive material at least partially coating a surface of the particle. In the composition formula (1), 0 < a < 1 and 0 ≤ x < 1 are satisfied, and M is at least one element selected from the group consisting of a tetravalent metal element and a tetravalent metalloid element.
Resumen de: EP4717667A1
A fluorosulfonylimide salt is disclosed. This fluorosulfonylimide salt represented by chemical formula (Ib) of the present invention contains at least one of an impurity represented by chemical formula (IIb), NS<sub>2</sub>O<sub>5</sub>F<sup>2-</sup>, and an impurity represented by chemical formula (IIIb), NS<sub>2</sub>O<sub>6</sub><sup>3-</sup>, wherein the content of NS<sub>2</sub>O<sub>5</sub>F<sup>2-</sup> is 10,000 ppm or less, and the content of NS<sub>2</sub>O<sub>6</sub><sup>3-</sup> is 10,000 ppm or less (in chemical formula (Ib), M2 is one of Li, Na, K, Ca, Mg, Zn, Sb, Rb, and Cs; and A1 is a fluorine atom, or an alkyl group having 1 to 6 carbon atoms in which at least one hydrogen atom is substituted with a fluorine atom).... chemical formula (Ib) ... chemical formula (IIb) ... chemical formula (IIIb) The fluorosulfonylimide salt according to the present invention can reduce the corrosion of electrolytes, additives, and current collectors.
Resumen de: CH722172A2
La présente invention concerne un polymère ioniquement conducteur pour un électrolyte polymère en gel comprenant m unités de répétition selon la formule (I) et n unités de répétition selon la formule (II). dans lequel R 1 est (CH 2 ) x -R 3 , dans lequel x est compris entre 1 et 20 et R 3 est H ou CN ; R 2 et R 5 sont, individuellement, un alkyle en C 1 -C 10 ou un alcényle en C 2 -C 10 ; M est un métal alcalin ou un métal alcalino-terreux ; le rapport entre m et n (m/n) est compris entre 25:1 et 1:25 ; et m + n égale q, dans lequel q est compris entre 50 et 5000. La présente invention concerne également un électrolyte polymère en gel comprenant le polymère ioniquement conducteur et des procédés de production du polymère ioniquement conducteur.
Resumen de: PL449878A1
Przedmiotem zgłoszenia jest sposób przygotowania tuszu przewodzącego do zastosowań elektrochemicznych jako materiał kompatybilny z drukiem 3D pracującym w technologii bezpośredniego wytłaczania tuszem. Sposób charakteryzuje się tym, że do naczynia będącego częścią miksera planetarnego umieszcza się od 50% do 90% masy mieszanki przewodzącej wybranej alotropowej odmiany węgla oraz od 50% do 10% masy silikonu, a następnie prowadzi się proces mieszania wstępnego na wolnych obrotach z wykorzystaniem wirnika pokrytego silikonem. Do mieszanki dodaje się rozpuszczalnika chlorowanego w ilości 10% masy wstępnej tuszu, kontynuując mieszanie na wolnych obrotach nie mniej niż 5 minut i nie więcej niż 15 minut do momentu uzyskania mieszaniny homogenicznej. Otrzymany tusz przeciska się przez membranę o otworach, korzystnie wielkości 500 µm, finalnie umieszczając tusz w kartridżu kompatybilnym z drukarką 3D działającą w technologii bezpośredniego wytłaczania tuszu, korzystnie strzykawce typu luer lock.
Resumen de: US20260088325A1
Provided are secondary battery manufacturing equipment and a secondary battery manufacturing method. According to an aspect of the present disclosure, secondary battery manufacturing equipment which includes a sealing device configured to press an pouch film to seal a sealing region in which an electrode tab is disposed, an induction heating coil configured to inductively heat the electrode tab to provide heat to the sealing region in an outer region of the electrode tab disposed outside the pouch film, and a first guide configured to press and support the electrode tab in a direction opposite to the induction heating coil to limit movement of the electrode tab caused by a magnetic field when the electrode tab is inductively heated.
Nº publicación: FR3166705A1 27/03/2026
Solicitante:
COMMISSARIAT A LENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES [FR]
Commissariat \u00E0 l'\u00E9nergie atomique et aux \u00E9nergies alternatives
Resumen de: FR3166705A1
Système de mesure physique au cœur d’un accumulateur électrochimique et procédé associé La présente invention concerne un système (10) de mesure physique au cœur d’un accumulateur (12) présentant deux bornes de puissance distinctes (16, 18), comprenant : - un capteur capacitif (20) à l’intérieur dudit accumulateur ; - un ensemble (22) d’éléments électriques externes audit accumulateur de sorte à former, avec ledit capteur capacitif (20), un circuit résonant dans une première plage de fréquence prédéterminée ; - un module de mesure (26), externe audit accumulateur, configuré pour : - exciter ledit circuit résonant, via un balayage en fréquence en pilotant une tension d’alimentation sur une deuxième plage de fréquence prédéterminée étendue comprenant ladite première plage; - mesurer au moins une fréquence de résonance résultant de ladite excitation ; - obtenir une valeur d’une grandeur physique interne dudit accumulateur à partir de ladite au moins une fréquence de résonance mesurée. Figure pour l'abrégé : Figure 1
BOPI
Sede Electrónica
