Resumen de: FR3146139A1
L’invention concerne un tétroxyde de tricobalt modifié revêtu en surface, son procédé de préparation et son utilisation. Le procédé de préparation comprend : (1) la réalisation d’un traitement d’hydroxylation de surface sur du carbonate de cobalt pour obtenir du carbonate de cobalt revêtu d’hydroxyl cobalt ; (2) le mélange d’un sel métallique et d’un agent complexant pour réaliser une réaction de complexation afin d’obtenir un sel métallique complexe ; (3) le mélange du carbonate de cobalt revêtu d’hydroxyl cobalt, du sel métallique complexe et d’un initiateur de greffage pour réaliser une réaction de greffage afin d’obtenir du carbonate de cobalt revêtu d’ions métalliques ; et (4) le frittage du carbonate de cobalt revêtu d’ions métalliques pour obtenir du tétroxyde de tricobalt modifié revêtu en surface. Un traitement d’hydroxylation est réalisé sur la surface du carbonate de cobalt, et un sel métallique soumis à un traitement de complexation est ajouté pour réaliser une réaction de greffage de sorte que la couche de revêtement formée à partir du sel métallique présente le même motif que l’hydroxyl cobalt sur la surface du carbonate de cobalt pour former une couche de revêtement en oxyde métallique non dense et en forme de fleur sur la surface du tétroxyde de tricobalt, améliorant ainsi l’activité de surface, facilitant un mélange efficace du tétroxyde de tricobalt et d’un sel de lithium, et am�
Resumen de: FR3146246A1
Un procédé de gestion de charge de batterie sur la base d’un taux d’utilisation d’une station de charge de batterie (100) est fourni. Le procédé est adapté pour être mis en œuvre par la station de charge de batterie (100) qui est configurée pour recevoir et charger une pluralité de batteries (112), et qui est un équipement électrique. Le procédé comprend les étapes : de charge des batteries (112) sur la base d’une première valeur d’un paramètre de charge ; d’obtention du taux d’utilisation de la station de charge de batterie (100) ; de détermination pour savoir si le taux d’utilisation est inférieur à un taux prédéterminé ; et lors de la détermination du fait que le taux d’utilisation est inférieur au taux prédéterminé, d’ajustement du paramètre de charge de la première valeur à une seconde valeur, et de charge des batteries (112) sur la base de la seconde valeur du paramètre de charge.
Resumen de: FR3146239A1
Module de batterie (B) qui comprend une suite de cellules de batterie cylindriques qui présentent chacune un axe de cellule passant par un pôle positif (P) à une première base, et par un pôle négatif (N) à une deuxième base.Selon l’invention, les cellules de batterie sont séparables et parallèles dans un tube (T), et en sens contraires de sorte que les pôles négatifs (N) et positifs (P)sont alternés de chaque côté et liés par des barres omnibus (B1, B2). L’invention concerne également un véhicule, et un procédé sur la base d’un tel module. Figure 2
Resumen de: FR3146197A1
Titre de l’invention : Dispositif de régulation thermique avec collecteur central La présente invention concerne un dispositif de régulation thermique (1) s’étendant dans un plan longitudinal-transversal, comprenant un premier tube (12), un deuxième tube (14) et un collecteur (6), les tubes (12, 14) comprenant des canaux (24) configurés pour la circulation d’un fluide caloporteur répartis en un premier ensemble de circulation (26) et un deuxième ensemble de circulation (28), le collecteur (6) comprenant une entrée de fluide caloporteur (8) et une sortie de fluide caloporteur (10), l’entrée de fluide (8) étant disposée d’un premier côté du plan longitudinal-transversal et la sortie de fluide (10) étant disposée d’un deuxième côté, le premier ensemble de circulation (26) des tubes (12, 14) débouchant dans l’entrée de fluide (8) et le deuxième ensemble de circulation (28) des tubes (12, 14) débouchant dans la sortie de fluide (10). Figure de l’abrégé : Figure 1
Resumen de: FR3146238A1
L’invention concerne un arrangement (10) électrique comportant un organe de commutation électrique (20) placé entre une dernière cellule génératrice de tension (41n) d’un premier ensemble électrique (8A) et une première cellule génératrice de tension (41a) d’un deuxième ensemble électrique (8B), l’organe de commutation électrique (20) permettant d’isoler électriquement ou de relier électriquement le premier ensemble électrique (8A) au deuxième ensemble électrique (8B) en fonction d’un certain nombre de conditions, ledit organe de commutation électrique (20) étant configuré pour être maintenu dans son état ouvert s’il n’est pas lui-même alimenté électriquement. Figure 2
Resumen de: US2024290965A1
A discharged electrochemical cell as described herein comprises an electrochemically reactive metal-containing cathode (e.g., Li, Na, Mg, or Zn; preferably Li) and a layered anode with an electrolyte therebetween. The layered anode comprises a conductive substrate and a reactive film of a metal, a semimetal, a metal oxide, or a semimetal oxide on the surface of the substrate. The reactive film is capable of reversibly alloying with, reversibly forming a mixed phase with, or reversibly reacting with, metal from cathode during charging of cell, and releasing the metal back to the cathode during discharge of the cell.
Resumen de: US2024290945A1
A method for preparing an electrode, includes (a) designating a current collector surface into an active material layer-laminated portion and an active material-nonlaminated portion, and attaching a masking tape to the active material-nonlaminated portion; (b) laminating an active material layer on the masking tape-attached current collector; (c) forming a cutting groove on an upper surface of the active material layer along a boundary of the masking tape at the bottom and the active material; and (d) removing the masking tape along the cutting groove to form the active material-nonlaminated portion, and an electrode in which a corner portion where an upper surface of the active material layer and a side wall surface forming a thickness of the active material layer meet is formed in a right-angled shape.
Resumen de: US2024290967A1
Provided is a positive electrode for a nonaqueous electrolyte secondary battery of one embodiment, wherein a positive electrode active substance is constituted of single particles having no grain boundary therein. The single particles include first single particles having a particle diameter of at least 4 μm, and second single particles having a particle diameter smaller than that of the first single particles. In a positive electrode mixture layer, the second single particles are disposed around the first single particles. The second single particle, among the second single particles disposed adjacent to the first single particles, with the smallest particle diameter has a particle diameter that is no more than 1⁄5 of the particle diameter of the first single particle adjacent to said second single particle. The first single particles account for 3-30% relative to the total number of the particles in the positive electrode active substance.
Resumen de: US2024290963A1
A niobium-containing oxide powder represented by General Formula Ti1-x/2Nb2O7-x (where X=0 to 2), wherein at least one metal element selected from the group consisting of Mo and Ce is localized on surfaces of niobium-containing oxide particles which constitute the niobium-containing oxide powder.
Resumen de: US2024290961A1
A negative electrode pre-dispersion, a negative electrode composition including the same, a negative electrode for a lithium secondary battery including the negative electrode composition, a lithium secondary battery including the negative electrode, and a method for preparing a negative electrode composition are disclosed. The negative electrode pre-dispersion includes a pre-dispersing material comprising a planar conductive material having a BET specific surface area ranging from 100.0 m2/g or more and a water-containing dispersing agent; and a dispersion medium, wherein a solid content of the pre-dispersing material is 10% to 30% based on the negative electrode pre-dispersion.
Resumen de: US2024290979A1
A negative electrode composite material slurry comprises a negative electrode active material including a Si-based active material, one or more auxiliary materials selected from the group consisting of polyacrylic acid, styrene-butadiene rubber, carboxymethylcellulose, and carbon nanotubes, and water. The negative electrode composite material slurry has a pH from 4.5 to 7.3.
Resumen de: US2024290964A1
A negative electrode active material having a β-LVO-type crystal structure, in which a part of the V element of the β-LVO-type crystal structure is substituted with one or more elements capable of having a tetracoordinate structure, and preferably, the one or more elements capable of having the tetracoordinate structure are one or more elements selected from Zn, Al, Ga, Si, Ge, P, and Ti.
Resumen de: US2024290983A1
Provided are a negative electrode and a lithium battery including the same, the negative electrode including: a negative electrode current collector; and a negative electrode active material layer arranged on the negative electrode current collector. The negative electrode active material layer comprises a negative electrode active material and a composite conductive material, wherein the composite conductive material comprises a core and a coating layer, the core comprises a carbon-based conductive material, and the coating layer comprises an ion-conductive polymer.
Resumen de: US2024291036A1
An electrochemical apparatus includes a positive electrode, a negative electrode, a separator, and an electrolyte, where the positive electrode includes a positive electrode current collector, a positive electrode active substance layer, and a conductive coating disposed between the positive electrode current collector and the positive electrode active substance layer; the electrolyte includes a first fluorine-containing metal salt, where the first fluorine-containing metal salt includes at least one of fluorine-containing sulfonimide lithium salts; and the electrochemical apparatus satisfies the following relationship: 0.1≤X/d≤105, where X g/m2 is mass per unit area of fluorine-containing sulfonimide lithium salt contained in the electrochemical apparatus on one surface of the positive electrode current collector, and d μm is thickness of the conductive coating on one surface of the positive electrode current collector.
Resumen de: US2024290968A1
A lithium ion battery containing a cathode active material layer containing a cathode active; an anode active material layer containing an anode active material; and an electrolyte layer containing an electrolyte, the electrolyte layer arranged between the cathode active material layer and the anode active material layer. The cathode active material has the composition represented by LibNacMn1-sNim-tCon-uM2s+t+uO2 where 0
Resumen de: US2024291034A1
The present invention relates to an electrolyte solution additive, an electrolyte solution for batteries, and a secondary battery including the same. According to the present invention, the present invention has an effect of providing a secondary battery having improved charging efficiency and output due to low discharge resistance and having a long lifespan and excellent high-temperature capacity retention rate by suppressing gas generation.
Resumen de: US2024290981A1
The present application relates to fluoropolymer-based, solvent-free electrode formulations obtained by extrusion and/or comprising one or more co-binders including TPU, to electrodes containing the same and to corresponding electrochemical elements and storage cells.
Resumen de: US2024290960A1
A nonaqueous electrolyte secondary battery according to one embodiment of the present disclosure is provided with a positive electrode, a negative electrode, a separator that separates the positive electrode and the negative electrode from each other, and a nonaqueous electrolyte. With respect to this nonaqueous electrolyte secondary battery, the positive electrode comprises a positive electrode collector, a first positive electrode mixture layer that is formed on the surface of the positive electrode collector, and a second positive electrode mixture layer that is formed on the surface of the first positive electrode mixture layer; the first positive electrode mixture layer contains a first positive electrode active material; the second positive electrode mixture layer contains a second positive electrode active material; and the Ni content ratio in the second positive electrode active material is lower than the Ni content ratio in the first positive electrode active material.
Resumen de: US2024290958A1
Methods for producing nanostructures from copper-based catalysts on porous substrates, particularly silicon nanowires on carbon-based substrates for use as battery active materials, are provided. Related compositions are also described. In addition, novel methods for production of copper-based catalyst particles are provided. Methods for producing nanostructures from catalyst particles that comprise a gold shell and a core that does not include gold are also provided.
Resumen de: US2024291020A1
The present technology relates to a composite material comprising inorganic particles, a fluorinated amide compound, and optionally an electrolyte polymer, plasticizer and/or salt, as well as to the process for preparing the composite material. Also described are solid electrolytes and electrode materials comprising the present composite material and their use in electrochemical cells and accumulators comprising them.
Resumen de: US2024290990A1
A method for manufacturing a positive electrode current collector coated with an adhesion enhancement layer includes preparing an aqueous slurry comprising a first binder polymer comprising polyvinylidene fluoride-based polymer particles having a melting point of 50 to 150° C. and a first conductive material at a weight ratio of 0.5:1 to 8:1; and coating the aqueous slurry on at least one surface of a metal current collector and drying by thermal treatment at higher temperature than the melting point of the polyvinylidene fluoride-based polymer particles to form the adhesion enhancement layer.
Resumen de: US2024291019A1
A method of manufacturing a cathode active material for a lithium secondary battery according to embodiments of the present invention includes performing a first heat treatment on a first mixture of a transition metal precursor and a lithium precursor at a first calcination temperature to obtain a preliminary lithium-transition metal composite oxide particle; and performing a second heat treatment on a second mixture obtained by adding the lithium precursor to the preliminary lithium-transition metal composite oxide particle at a second calcination temperature which is lower than the first calcination temperature to form a lithium-transition metal composite oxide particle.
Resumen de: US2024290980A1
The present invention pertains to vinylidene fluoride copolymers comprising recurring units derived from hydrophilic monomers and to their use as binder for electrodes in Li-ion batteries.
Resumen de: US2024291039A1
A negative electrode, and a method and apparatus for manufacturing a negative electrode, are provided. The apparatus for manufacturing a negative electrode includes a pair of magnet plates including an upper magnet plate and a lower magnet plate respectively disposed above and below a plane (e.g., X-Y plane) in which the negative electrode moves in a direction (e.g., X-axis direction). In the magnet plate, first and second vertical unit magnets and first and second horizontal unit magnets with magnetic force lines having different directions are arranged, and a direction of magnetic force lines of the unit magnets changes by 90 degrees in a second direction (e.g., Y-axis direction). The upper and lower magnet plates have opposite polarities, and the upper and lower magnet plates have constant magnetic force in the first direction and a magnetic force changing in the second direction.
Nº publicación: US2024291061A1 29/08/2024
Solicitante:
GM GLOBAL TECH OPERATIONS LLC [US]
GM GLOBAL TECHNOLOGY OPERATIONS LLC
Resumen de: US2024291061A1
A mixed chemistry battery including a sensing cell having a first chemistry, a battery cell having a second chemistry that is different than the first chemistry. The mixed chemistry battery also includes a sensor configured to measure a temperature of the mixed chemistry battery and a heating system configured to heat the second battery cell. The mixed chemistry battery further includes a battery monitoring system configured to selectively connect the heating system to at least one of the first battery cell and the second battery cell based upon the temperature of the mixed chemistry battery.