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1301
resultados
Última actualización
04/03/2026 [07:30:00]
Resumen de: FR3165739A1
Electrode traitée en lithium-métal pour batterie, comprenant à la surface de l’électrode : - un réseau polymère tridimensionnel, et - au moins un éther couronne positionné entre la surface de l’électrode et ledit réseau polymère tridimensionnel.
Resumen de: FR3165727A1
Procédé de détermination du nombre de cycles charge- décharge d’ une batterie, procédé et dispositifs associés La présente invention concerne un procédé de détermination d’un nombre de cycles de charge et décharge d’un élément électrochimique d’une batterie à plusieurs profondeurs de décharge, le procédé comprenant les étapes suivantes : - obtention de l’évolution de l’état de charge à plusieurs instants, - pour le premier instant, initialisation d’une valeur de référence de chaque classe, chaque classe étant définie par un seuil de profondeur de décharge respectif, - pour chaque instant ultérieur, dénombrement du nombre de cycles dans chaque classe en : - pour chaque classe, augmentant de 1 le nombre de cycles si une condition d’augmentation est remplie, la condition d’augmentation étant un critère de comparaison relatif à l’évolution de l’état de charge, et - diminuant le nombre de cycles dans chaque classe à l’instant considéré si une augmentation a eu lieu. . Figure pour l'abrégé : figure 2
Resumen de: FR3165737A1
L’invention concerne une batterie (30) comprenant un châssis de cellules de batterie (20) et un conduit d’air (10). Le conduit d’air (10) comprend une entrée d’air présentant une première section (10A), le conduit d’air (10) comportant une sortie d’air présentant une deuxième section (10B). Un flux d’air (F) de la première section (10A) à la deuxième section (10B) de manière à refroidir une paroi de fixation (12) de la batterie (30). Le conduit d’air (10) comprend une mousse métallique à densité variable (40) comportant des pores et des parois entre les pores, la mousse métallique à densité variable (40) présentant une première portion (41) attenante à la première section (10A) et une deuxième portion (42) attenante à la deuxième section (10B), la densité volumique de la deuxième portion (42) étant plus grande que la densité volumique de la première portion (41). Figure 1
Resumen de: FR3165736A1
L’invention concerne un procédé de charge d’au moins une cellule électrochimique (4) de batterie d’accumulateurs (2) de véhicule automobile (1) depuis un niveau de charge initial, comportant des étapes : i) de charge de ladite cellule électrochimique à une première intensité de courant de charge, puis ii) dès qu’une tension mesurée aux bornes de ladite cellule électrochimique atteint un seuil de tension, de baisse du courant de charge jusqu’à une autre intensité déterminée, et ensuite iii) de charge de ladite cellule électrochimique à ladite autre intensité de courant de charge, les étapes ii) et iii) étant répétées avec des seuils de tension de plus en plus élevés et des intensités de plus en plus faibles. Selon l’invention, l’un au moins desdits seuils de tension est déterminé en fonction du niveau de charge initial de la cellule. Figure pour l’abrégé : Fig.1
Resumen de: FR3165738A1
L’invention concerne une batterie (130) de véhicule électrique ou hybride. La batterie (130) comporte un conduit d’air (110) et un châssis de cellules de batterie (120). Le conduit d’air (110) comporte une surface d’échange (112) en contact avec le châssis de cellules de batterie (120). Le conduit d’air comporte une entrée d’air présentant une première section (110A) et une sortie d’air présentant une deuxième section (110B). Le conduit d’air (110) présente une diminution de section configurée pour accélérer un flux d’air (F) entre la première section (110A) et la deuxième section (110B). De plus, le conduit d’air peut aussi comporter des saillies (113) favorisant la création de turbulences dans l’écoulement du flux d’air (F). Par ces moyens, le flux d’air (F) refroidit efficacement la batterie (130). Figure 1
Resumen de: DE102025125192A1
Energiespeichervorrichtung mit einem Batteriegehäuse, das als Gehäuse dient, und einem Batteriemodul, das so konfiguriert ist, dass es von einer Öffnung des Batteriegehäuses aus in eine erste Richtung einsetzbar ist. Darüber hinaus umfasst die Energiespeichervorrichtung ein Wärmeleitelement, das zwischen einem unteren Oberflächenabschnitt des Batteriemoduls und dem Batteriegehäuse angeordnet ist. Ferner umfasst die Energiespeichervorrichtung einen Vorsprung, der an einem vorderen Oberflächenabschnitt (einem hinteren Oberflächenabschnitt) des Batteriemoduls vorgesehen ist, und einen Führungsabschnitt, der an einem Innenoberflächenabschnitt des Batteriegehäuses vorgesehen ist. Der Führungsabschnitt ist so konfiguriert, dass er einen linearen Abschnitt, der den Vorsprung entlang der ersten Richtung führt, und einen schrägen Abschnitt umfasst, der auf einer Seite in der ersten Richtung in Bezug auf den linearen Abschnitt vorgesehen ist und sich auf eine schräge Weise in Richtung einer Seite des unteren Oberflächenabschnitts erstreckt.
Resumen de: DE102025118286A1
Eine Energiespeicherzelle umfasst: einen Elektrodenkörper; ein Zellengehäuse, das den Elektrodenkörper aufnimmt; und einen wärmeleitenden Film, der auf einer äußeren Fläche des Zellengehäuses bereitgestellt ist. Die äußere Fläche umfasst eine zugewandte Fläche, die einem Kühler zugewandt ist, der extern bereitgestellt ist. Der wärmeleitende Film ist auf der zugewandten Fläche bereitgestellt und weist eine Isolierung und Elastizität auf.
Resumen de: WO2026041185A1
The invention relates to a method for producing a cell housing (1) for a battery housing of a vehicle battery or of a stationary battery, said method comprising: - supplying an intermediate product having a first wall thickness to a production device for producing a predetermined breaking structure (2) for the controlled destruction of a cell housing (1), - producing a predetermined breaking structure (2) in a side wall (3) of the supplied intermediate product by means of a subtractive manufacturing method and/or by means of a forming method, - wherein, during the production of the predetermined breaking structure (2), the first wall thickness of the intermediate product is reduced to a second and to a third and/or to a fourth and/or to a fifth wall thickness. The invention also relates to a cell housing (1) for a battery housing of a motor vehicle.
Resumen de: DE102024134743A1
Eine Elektrolytzusammensetzung für Lithium-Sekundärbatterien enthält ein Lithiumsalz und ein organisches Lösungsmittel. Das organische Lösungsmittel enthält ein aromatisches Lösungsmittel mit fluorierten Toluolderivaten (wie 2,3-Difluortoluol) und ein Etherlösungsmittel. Das Lithiumsalz kann Verbindungen wie Li(CF3SO2)2N, Li(SO2F)2N, LiPF6 und andere enthalten. Das aromatischen Lösungsmittels am Elektrolyten ist in einer Menge von etwa 30-90 Vol.-% vorhanden, und die Molarität des Lithiumsalzes reicht von 0,1 bis 3,0 M. Diese Zusammensetzung verbessert die Batterieleistung durch Erhöhung der Stabilität, der Leitfähigkeit und der Kompatibilität mit Lithiummetall- oder Lithiumionenelektroden, wodurch sie sich für Anwendungen mit hoher Energiedichte in Lithiumsekundärbatterien eignet.
Resumen de: WO2026044080A1
Disclosed are elongate ceramic (nano)particles that include γ-alumina. In some implementations: a mass fraction of the γ-alumina in the elongate ceramic (nano)particles is in a range of about 70 to about 100 wt. %, a Brunauer-Emmett-Teller specific surface area (BET-SSA) of the elongate ceramic (nano)particles is in a range of about 30 to about 400 m2/g, an average aspect ratio of the elongate ceramic (nano)particles is at least about 3, and a cumulative pore volume of the elongate ceramic (nano)particles in a pore width range of 7 to 20 nm is in a range of about 1.0 x 10-2 to about 1.0 cm3/g. A separator, an integrated electrode-separator component, and a lithium-ion battery incorporating the elongate ceramic (nano)particles are also disclosed. Related methods of making a separator, an integrated electrode-separator component, and a lithium-ion battery are also disclosed.
Resumen de: WO2026043945A1
The disclosed technology relates to an adhesive system for a ceramic coated separator for electrochemical cells, such as lithium-ion batteries, as well as to the ceramic coated separator incorporating the adhesive system.
Resumen de: WO2026041947A1
An electrode precursor composition for an alkali metal ion secondary cell is described. The electrode precursor composition comprises: a polymer-electrolyte gel matrix phase, a dispersed phase comprising an electrochemically active material, and a conductive additive. The conductive additive comprises a mixture as a majority component, the mixture consisting of tubular carbon material and sheet carbon material. An electrode of the same composition, a method of producing said electrode, an electrochemical secondary cell incorporating said electrode, and electrochemical energy storage device incorporating said cell are also described.
Resumen de: WO2026041769A1
The present invention relates to a method for determining a number of charge and discharge cycles of an electrochemical element of a battery at a plurality of depths of discharge, the method comprising the following steps: - obtaining the change in the state of charge at a plurality of times; - for the first time, initializing a reference value for each class, each class being defined by a respective depth of discharge threshold; - for each subsequent time, counting the number of cycles in each class by: - for each class, increasing the number of cycles by one if a condition of increase is met, the condition of increase being a comparison criterion relating to the change in the state of charge; and - decreasing the number of cycles in each class at the stated time if an increase has taken place.
Resumen de: WO2026041762A1
The invention relates to a method and an apparatus for transferring an igniting or outgassing battery (20) into a safety container (2), containing a safety container (2) having a first and a second container part (3, 4), which can be brought together to form a closed safety container (2). The apparatus contains a support device (21) for supporting the safety container (2) in an open position, wherein the support device (21) has a triggering mechanism (22, 29, 32) for transferring the safety container (2) from the open position (OP) into a closed position (SP) by means of gravity assistance.
Resumen de: WO2026041186A1
The invention relates to a method for producing a cell housing (1) and/or cover for a battery housing of a vehicle battery or of a stationary battery, said method comprising: - supplying an intermediate product having a first wall thickness to a production device for producing a predetermined breaking structure (2) for the controlled destruction of a cell housing (1) and/or cover, - producing a predetermined breaking structure (2) in a side wall (3) of the supplied intermediate product by means of a subtractive manufacturing method and/or by means of a forming method, - wherein, during the production of the predetermined breaking structure (2), the first wall thickness of the intermediate product is reduced to a second and to a third and/or to a fourth and/or to a fifth wall thickness. The invention also relates to a cell housing (1) and/or a cover for a battery housing of a motor vehicle.
Resumen de: WO2026041719A1
Support for firing a ceramic powder comprising an alkali metal oxide and/or alkaline-earth metal oxide, said support comprising a porous ceramic body forming a cavity or a container for said powder, said porous body being coated on at least part of its inner surface with a ceramic coating, wherein said porous ceramic body has an open porosity of between 10% and 40% and a median equivalent pore diameter of between 0.1 and 30 micrometers and said ceramic coating comprises grains comprising a crystalline borocarbonitride phase, a binder phase of said grains comprising a non-alkali metal phosphate and preferably ceramic oxide grains or one or more ceramic oxide phases.
Resumen de: WO2026043557A1
A blister package for an electrochemical cell having a water-soluble coating on at least one terminal. The package comprises a first plastic panel and a second plastic panel. The second plastic panel is secured to the first plastic panel such that a cavity is defined having a closed planar side opposite the open side and parallel with at least one of the first planar portion or the second planar portion. The cavity may include a substantially cylindrical sidewall that extends between the closed planar side and one of the first planar portion or the second planar portion surrounding the cavity. The cavity includes a standoff post having a distal end extending into the cavity and spaced away from the sidewall to define an unoccupied volume surrounding the standoff post and spaced apart from the other of the first plastic panel or the second plastic panel to define a battery-placement cavity.
Resumen de: WO2026041680A1
The present disclosure provides a method for preparing a positive electrode active material powder for Li-ion rechargeable batteries, comprising: providing an additive material powder comprising an Al-containing compound powder and a B-containing compound powder; mixing the additive material powder with Li transition metal oxide particles to obtain a first intermediate material powder; milling the first intermediate material powder to obtain a second intermediate material powder; and heating the second intermediate material powder to obtain the positive electrode active material powder.
Resumen de: WO2026043420A1
The present disclosure provides a process for recovering lithium from recycled lithium-ion batteries The lithium from such batteries may be recovered in the form of a black mass in the form of a dry waste powder. The black mass powder may be contacted with an organic acid to form an organic acid/black mass mixture. This mixture then may be heated to a temperature of from about 200°C to 600°C. The heat treated mixture may be extracted using water to provide a lithium-rich supernatant and a solid residue. The lithium-rich supernatant and residue may then be separated. The supernatant may be concentrated and crystallized to provide lithium carbonate.
Resumen de: WO2026041646A1
A solvent-free lithium-ion battery (LIB) electrode production process is disclosed. The electrode production process employs polymeric binder materials that are distinct from the conventional polyvinylidene difluoride binders. A powder coating process can be used to manufacture the LIB electrodes. The powder coating process avoids the use of a solvent, which in turn reduces overall production costs and improves production worker safety.
Resumen de: WO2026040398A1
Disclosed in the present invention are a manganese iron phosphate precursor and lithium manganese iron phosphate, and preparation methods therefor and the use thereof. LMFP is prepared by first preparing a divalent manganese iron phosphate precursor, i.e., ammonium manganese iron phosphate, by means of a coprecipitation method, then roasting, dehydrating and deaminizing same to generate manganese iron hydrogen phosphate, and then mixing and sintering the manganese iron hydrogen phosphate and a lithium salt. In the preparation process of ammonium manganese iron phosphate, ammonia water, ammonium bicarbonate, sodium bicarbonate and other alkaline dangerous chemicals are not used, and only a manganese salt, an iron salt and a phosphorus salt, which are essential components of the substance, are used. In the process of coprecipitation, it is not necessary to introduce other additional impurity elements; therefore, the prepared product has a relatively high purity and a relatively low impurity content. The process is simple and practical, has good reproducibility, and achieves uniform dispersion of atoms. A single-crystalline-phase precursor compound ammonium manganese iron phosphate with a uniform morphology is eventually formed.
Resumen de: WO2026041305A1
The invention relates to a process of selectively stripping nickel or cobalt from coated steel substrates. The invention further relates to an aqueous alkaline ammonia solution suitable for use in the process.
Resumen de: WO2026041295A1
The invention relates to a method for manufacturing a flexible composite electrode, the method comprising: mixing an active material, an electronic conductive component, an ionic conductive component and optionally a binder, thereby obtaining a first mixture having a dry extract; and shaping the first mixture, thereby obtaining the flexible composite electrode; the dry extract comprising between 50 wt.% and 90 wt.% of the active material, between 5 wt.% and 10 wt.% of the electronic conductive component, between 5 wt.% and 40 wt.% of the ionic conductive component, and between 0 wt.% and 20 wt.% of the binder, relative to the weight of the dry extract.
Resumen de: WO2026040303A1
An optimized repairing method for cracks on a surface of a precursor of positive electrode material. The method comprises: stopping a reaction when a precursor of a positive electrode material grows to a target D50 particle size, reducing the stirring speed, raising the temperature, adding a repairing solution and a mixed solution of ammonia water and an ammonium sulfate solution, and performing optimized crack repairing for 24-48 h. In the optimized repairing method for cracks, cracks on a surface of the precursor of a positive electrode material can be thoroughly repaired by means of two instances of surface crack repairing; therefore, the qualification rate of the precursor of a positive electrode material is improved, and the influence of spherical cracking of the precursor of a positive electrode material on the performance of the positive electrode material can be effectively avoided.
Nº publicación: WO2026041187A1 26/02/2026
Solicitante:
SCHAEFFLER TECH AG & CO KG [DE]
SCHAEFFLER TECHNOLOGIES AG & CO. KG
Resumen de: WO2026041187A1
The invention relates to a method for producing a cell housing (1) for a battery housing of a vehicle battery or of a stationary battery, said method comprising: - supplying an intermediate product having a first wall thickness to a production device for producing a predetermined breaking structure (2) for the controlled destruction of a cell housing (1), - producing a predetermined breaking structure (2) in a side wall (3) of the supplied intermediate product by means of a subtractive manufacturing method and/or by means of a forming method, - wherein, during the production of the predetermined breaking structure (2), the first wall thickness of the intermediate product is reduced to a second and to a third and/or to a fourth and/or to a fifth wall thickness. The invention also relates to a cell housing (1) for a battery housing of a motor vehicle.
BOPI
Sede Electrónica
