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SECONDARY BATTERY ELECTROLYTE, MANUFACTURING METHOD THEREFOR, AND LITHIUM SECONDARY BATTERY COMPRISING SAME

Resumen de: EP4679551A1

An electrolyte for a lithium secondary battery according to embodiments of the present disclosure may include a composite membrane including a lithium salt, an organic polymer, and an inorganic electrolyte, and a flame retardant compound including a phosphorus-containing functional group. The weight ratio of the flame retardant compound to the composite membrane may be 0.004 to 0.3. Accordingly, the flame retardancy and electrical properties of the secondary battery may be improved.

ELECTROLYTE FOR SECONDARY BATTERY, MANUFACTURING METHOD THEREFOR, AND LITHIUM SECONDARY BATTERY COMPRISING SAME

Resumen de: EP4679550A1

An electrolyte for a secondary battery according to embodiments of the present disclosure may include a lithium salt, a composite membrane including an inorganic electrolyte, and a flame retardant polymer. A secondary battery according to embodiments of the present disclosure may include a cathode, an anode disposed to face the cathode, and an electrolyte layer disposed between the cathode and the anode which includes the electrolyte for a secondary battery.

ELECTROLYTE FOR SECONDARY BATTERY, METHOD FOR PREPARING SAME, AND LITHIUM SECONDARY BATTERY COMPRISING SAME

Resumen de: EP4679549A1

An electrolyte for a lithium secondary battery according to embodiments of the present disclosure may include a lithium salt, a composite membrane including an inorganic electrolyte and an organic binder, and a flame retardant polymer. A lithium secondary battery according to embodiments of the present disclosure may include a cathode, an anode disposed to face the cathode, and an electrolyte layer disposed between the cathode and the anode which includes the electrolyte for a secondary battery.

NEGATIVE ELECTRODE MATERIAL FOR SECONDARY BATTERY

Resumen de: EP4679523A1

The present invention relates to a negative electrode material for a secondary battery, having excellent initial charge/discharge efficiency, and, specifically, the negative electrode material for a secondary battery comprises: a matrix containing a silicon oxide, a composite oxide of silicon and at least one doping element selected from the group consisting of an alkali metal, an alkaline earth metal and a post-transition metal, or a mixture thereof; and silicon nanocrystals dispersed and incorporated in the matrix, and comprises, in an X-ray diffraction pattern using CuKα rays, a first peak of diffraction angle 2θ in the range of 20.3°-21.3°, a second peak in the range of 26°-27°, a third peak in the range of 28°-29°, and a fourth peak in the range of 30.5°-31.5°, and the ratio (I2/I4) of the maximum intensity (I2) of the second peak to the maximum intensity (I4) of the fourth peak satisfies 1-20.

METHOD OF PRODUCING RECYCLED MATERIAL

Resumen de: EP4679563A1

The present disclosure relates to a method of producing a recycled material. The method of producing a recycled material includes the following (a) and (b). (a) Preparing a battery material. (b) Generating carbon disulfide by causing carbon that is included in the battery material and sulfur to react with each other.

SEPARATION METHOD FOR ELECTRODE BODY

Resumen de: EP4679564A1

A process of separating an electrode body 20 includes an immersing step S2 and an ultrasonic wave applying step S3. In the immersing step S2, the stacked electrode body 20 is immersed in a solution SL containing hydrofluoric acid. Thereafter, in the ultrasonic wave applying step S3, an ultrasonic wave is applied to the solution SL. In the ultrasonic wave applying step S3, the ultrasonic wave is applied in a state where a positive electrode tab 23 and a negative electrode tab 25 of the stacked electrode body 20 are gripped.

BATTERY PACK

Resumen de: EP4679618A1

A battery pack including first to third battery cell assemblies arranged in a first direction; fourth to sixth battery cell assemblies arranged in the first direction, the fourth to sixth battery cell assemblies being spaced apart from the first to third battery cell assemblies in a second direction that is perpendicular to the first direction; and first to fifth inter-bus bars, wherein the first inter-bus bar and the second inter-bus bar are spaced apart from each other in the second direction.

CARBON-AIR SECONDARY BATTERY

Resumen de: EP4679573A1

The present invention provides a carbon/air secondary battery that can secure a large amount of stored electricity, has high charge/discharge efficiency, and has good cycle characteristics.A secondary battery 1 has a reactor 20 in which a negative electrode 21 is installed inside, which is separated from the outside by an electrolyte 23 and which is configured to store carbon that deposits during charging inside, and a structure 60 which surrounds the reactor 20 and suppresses heat loss due to radiant heat transfer from the reactor 20. During charging, carbon dioxide is electrolyzed on the surface of the negative electrode 21, causing carbon to deposit on the negative electrode side, which is a closed system, and at the positive electrode 22, oxygen is generated from oxide ions which are generated at the negative electrode 21 and are permeating the electrolyte 23. During discharging, oxide ions are generated from oxygen at the positive electrode 22, and carbon and/or carbon monoxide are electrochemically oxidized on the surface of the negative electrode 21 to generate carbon dioxide.

DETERMINATION DEVICE, DETERMINATION METHOD, AND DETERMINATION PROGRAM

Resumen de: EP4679115A1

An object is to accurately determine the suitability of a secondary battery (battery) for an application, with a simple configuration. A determination apparatus determines, from a plurality of batteries 1, a battery 1 suitable for an application 4, and includes: an information acquisition unit 12 configured to acquire battery information 21 regarding the batteries 1; a degradation estimation unit 14 configured to estimate, for each of the batteries 1, per-cause degradation information 6 indicating a degradation state per degradation cause 7 from the battery information 21; an application input unit 15 configured to receive an input of the application 4; and a determination unit 17 configured to, based on the estimated per-cause degradation information 6 and the input application 4, determine a battery 1 suitable for the application 4 from the plurality of batteries 1 while considering a degree of influence of each degradation cause 7 on the application 4.

CHARGING CONTROL DEVICE, CHARGING CONTROL METHOD, AND CHARGING CONTROL PROGRAM

Resumen de: EP4679671A1

An object is to easily suppress the degradation of battery performance during charging. A charging control apparatus controls charging of a secondary battery 1 that is performed by supplying power from a power source 3, and includes: a control unit 18 configured to control power supplied from the power source 3; and a resistance acquisition unit 17 configured to obtain an internal resistance 5 of the secondary battery 1. The power source 3 can change a charging current 6 and supply power to the secondary battery 1. The control unit 18 performs suppression control on the power source 3 such that the product of the charging current 6 and the internal resistance 5 is smaller than or equal to a predetermined threshold 8.

CYLINDRICAL BATTERY

Resumen de: EP4679615A1

A cylindrical battery (10) serving as an example of an embodiment comprises: an electrode body including a first electrode and a second electrode; an outer casing (16) having a bottomed cylindrical shape and accommodating the electrode body; and a sealing body (17) that closes an opening of the outer casing (16), the first electrode being electrically connected to the sealing body (17), and the second electrode being electrically connected to the outer casing (16). The cylindrical battery (10) further comprises: a first conductive member (30) bonded to a surface of the sealing body (17) outward of the battery; a second conductive member (40) bonded to an opening edge portion of the outer casing (16); and an insulating member (50) coupling the first conductive member (30) and the second conductive member (40).

Insulating edge coating

Resumen de: GB2642468A

An electrode comprises a conductive foil 1, an active layer 5 and an insulating edge coating 6. The active layer comprises an active material, a binder and optionally a conductive additive. The insulating edge coating comprises polyurethane or polyurethane urea binder, and hydrogenated nitrile butadiene rubber binder, and optionally antioxidant. The conductive foil comprises a first region 2, a third region 4, and a second region 3 located between the first and third regions. The active layer is coated on the first region. The insulating edge coating is coated on the second region and overlaps 7 the interface between the active layer and the second region. The third region is not coated with active layer or insulating edge coating. A method of preparing the insulating edge coating may comprise combining the binder composition, the ceramic and solvent to form a slurry, and then depositing the slurry by slot-die coating.

Battery safety system

Resumen de: GB2642490A

A system for improving the safety of a battery 300 comprises a first passive cooling system having a support structure and a cooling circuit that comprises a plurality of parallel cooling plates 364. The support structure comprises one or more chassis members 320A that define a plurality of enclosures for housing a plurality of battery modules and one or more thermal bridge members 320B that are in thermal communication with the chassis member(s) and cooling plates. Accordingly, thermal energy emitted by a battery module is removed by the first passive cooling system without propagating to neighbouring battery modules. The system preferably includes a second passive cooling system comprising a respective vent gate for each of the plurality of enclosures and an exhaust duct (figure 6), and may include a fire suppressant module and/or dry break couplings for providing fire suppressant material. The battery preferably comprises Li-ion cells and is used in a marine vessel (figure 1).

SECONDARY BATTERY

Resumen de: EP4679571A1

A secondary battery includes: an electrode assembly including a cathode, an anode, and a separator between the cathode and the anode; a case accommodating the electrode assembly in an internal space, and including a vent portion; a cap plate covering an upper portion of the case to seal the case; and an insulator between the electrode assembly and the case within the case. The vent portion is located at a side of the case opposite to the cap plate, and at least an area of the insulator overlapping with the vent portion includes a mesh area having a mesh shape.

ARRANGEMENT STRUCTURE OF SOLID ELECTROLYTE IN ALL-SOLID-STATE CELL, AND BATTERY

Resumen de: EP4679552A1

Problem To provide an advantageous technique for further improving the charging voltage in an all-solid-state cell such as an all-solid-state lithium-ion secondary battery.Solution An arrangement structure of a solid electrolyte in an all-solid-state cell, including a first solid electrolyte that contains, as a main component, a crystalline phase containing Li, Al, and F and having a β-Li3AlF6 type structure or an amorphous phase containing Li, Al, and F within a range where x satisfies 2.0 or more and 5.0 or less in a composition formula LixAlF3+x, and including a second solid electrolyte that contains, as a main component, a sulfide or an oxide between a high-potential side electroconductive material and a low-potential side electroconductive material in an all-solid-state cell, and in which the first solid electrolyte is interposed between the high-potential side electroconductive material and the second solid electrolyte, and a contact portion between the high-potential side electroconductive material and the first solid electrolyte, and a contact portion between the first solid electrolyte and the second solid electrolyte are provided.

CARBON NANOTUBE DISPERSION COMPOSITION AND USE THEREOF

Resumen de: EP4679537A1

Provided are a carbon nanotube dispersion composition having high conductivity and good fluidity and storage stability and a non-aqueous electrolyte secondary battery having excellent rate characteristics and cycle characteristics by using an electrode composite material slurry and an electrode film using the composition. The carbon nanotube dispersion composition contains containing carbon nanotubes having an average outer diameter of 3 nm or less, a polymer component, and a solvent, in which the polymer component contains a polyvinylidene fluoride resin, which may have a substituent as a main component, and the carbon nanotube dispersion composition has a particle diameter D₉₀ at 90% volume accumulation in the particle size distribution measured by laser diffraction method of 2.0 µm or more and less than 20.0 µm, and a pH of 7.5 or higher.

AUTONOMOUS OPERATION DEVICE

Resumen de: EP4679595A1

The present disclosure discloses an autonomous operation device. The autonomous operation device includes a chassis and a cavity cover, where the chassis includes a first cover body and a second cover body, and the first cover body covers the second cover body to jointly form a battery pack cavity; the cavity cover operably opens and closes the battery pack cavity, and the battery pack cavity and the cavity cover are configured such that the cavity cover can prevent water from entering the battery pack cavity in both a closed and locked state and a closed and unlocked state. The present disclosure can prevent water from entering the battery pack cavity when the cavity cover is in the closed and unlocked state, improving the use safety of a battery pack.

Un proceso de impresión por plasma para fabricar y producir electrodos de batería y mejorar los colectores de corriente

Resumen de: WO2024241343A1

Embodiments of the present invention provide a binder-free electrode of an electrochemical device fabricated using a plasma printing process. The process (100) comprises depositing electroactive material over a current collector to form the electrode in a continuous, electrolytic plasma process. As the electroactive material is mechanically bonded to a surface of the current collector, the inventive process is chemistry agnostic, and a wide variety of materials may be deposited on the current collector. A solid- state battery fabricated using the above process is also disclosed.

Method and apparatus for heating a vehicle battery, electric vehicle, server and storage medium

Resumen de: CN118722346A

The invention relates to the field of electric vehicle control, and discloses a vehicle battery preheating method which comprises the following steps: acquiring the coming time of preset weather, and acquiring the vehicle using time of a user; the duration of the vehicle battery in a low-temperature state is determined according to the coming time of the preset weather and the vehicle using time, and the low-temperature state is the state that the temperature is lower than a preset temperature threshold value; and preheating the vehicle battery according to the duration of the vehicle battery in the low-temperature state. In the embodiment of the invention, by determining the duration of the vehicle battery in the low-temperature state, it is convenient to estimate whether the vehicle battery is frozen thoroughly before the vehicle is used next time, and the vehicle battery is preheated according to the duration of the vehicle battery in the low-temperature state, so that the vehicle battery can be effectively prevented from being frozen thoroughly when extremely cold weather comes. The invention further discloses a vehicle battery preheating device, an electric vehicle, a server and a computer readable storage medium.

Procédé de synthèse de particules de thiophosphate Li3PS4

Resumen de: FR3164317A1

La présente invention concerne un procédé de synthèse de particules de thiophosphate Li3PS4, à partir d’un solvato-complexe formé entre Li3PS4 et un premier solvant S1, ledit procédé comprenant :a) une étape de dispersion du solvato-complexe entre Li3PS4 et le premier solvant S1 dans un deuxième solvant S2 non complexant, ledit deuxième solvant S2 étant miscible avec le première solvant S1 et présentant- un logarithme du coefficient de répartition eau/octanol logP égal ou supérieur à 1,1,- une densité moléculaire égale ou supérieure à 0,869 g/cm3 ,- un moment dipolaire inférieur ou égal à 2,32 D,de façon à faire précipiter des particules de thiophosphate Li3PS4b)une étape de séparation des particules de thiophosphate Li3PS4 précipitées à l’étape a)c) une étape de séchage des particules de thiophosphate Li3PS4séparées à l’étape b). Figure 1 à publier

Dispositif de régulation thermique, notamment pour véhicule automobile

Resumen de: FR3164265A1

Dispositif de régulation thermique, notamment pour véhicule automobile L’invention concerne un organe anti-retour comprenant un corps de valve et un volet dans lequel le volet (22) comprend une charnière (23) coopérant par complémentarité de forme et de façon amovible avec une première partie du corps de valve (21) de façon à former ledit axe de rotation du volet (22), le corps de valve (21) étant configuré pour être inséré dans un élément (110) formant au moins partiellement le chemin de circulation de fluide et à être fixé de façon amovible audit élément (110) de façon à ce que la charnière (23) du volet (22) soit prise en sandwich entre ladite première partie du corps de valve (21) et ledit élément (110) afin d’empêcher ladite charnière (23) de sortir de la première partie du corps de valve (21) avec laquelle elle coopère, tout en la laissant libre en rotation selon ledit axe de rotation R. Figure pour l’abrégé : Fig. 4

Module pour véhicule électrique

Resumen de: FR3164319A1

Module (1) électrique comprenant une cavité (2) interne destinée à être remplie d’un fluide (3) caloporteur en mouvement, ledit module (1) comprenant une pluralité de cellules (4) électriques agencées dans la cavité (2) interne, ledit module (1) comprenant au moins un dispositif (18, 26, 33, 39) déviateur apte à orienter le fluide (3) caloporteur dans la cavité (2) interne de sorte que ledit fluide (3) caloporteur se déplace autour desdites cellules (4). Figure pour l'abrégé : Figure 5

Composition d’électrolyte pour élément électrochimique lithium-ion

Resumen de: FR3164320A1

Un électrolyte comprenant :- un mélange de solvants comprenant du propionate de méthyle, au moins un carbonate cyclique et/ou au moins un carbonate linéaire,- du carbonate de vinylène ou du monofluorocarbonate d’éthylène ou un mélange de ceux-ci, du sulfate d’éthylène et du difluorophosphate de lithium,- un ou plusieurs sels de lithium autres que du difluorophosphate de lithium.Le propionate de méthyle, le sulfate d’éthylène et le difluorophosphate de lithium interagissent pour limiter la croissance de la couche de passivation à la surface de l’électrode négative et ainsi limiter l’augmentation de la résistance interne de l’élément électrochimique. Figure d’abrégé : Figure 1

Cellule de batterie pour immersion dans un liquide de refroidissement

Resumen de: FR3164321A1

Cellule de batterie pour immersion dans un liquide de refroidissement L’invention concerne une cellule (12) de batterie, comportant un boîtier (20) de cellule, ledit boîtier comprenant : une première (30) et une deuxième faces principales, parallèles et opposées ; et une face supérieure (38), perpendiculaire aux faces principales ; un axe de boîtier (40) étant perpendiculaire à la face supérieure. La première face principale (30) comprend une première série de rainures (42), sensiblement rectilignes et parallèles entre elles ; la deuxième face principale (32) comprend une deuxième série de rainures (44), sensiblement rectilignes et parallèles entre elles. Les rainures (42, 44) de la première et de la deuxième séries forment respectivement un premier (α) et un deuxième (β) angle avec l’axe (40) de boîtier, chacun des premier et deuxième angles étant strictement supérieur à 0° et strictement inférieur à 90°. Figure pour l’abrégé : Figure 2

Cellule électrochimique, unité mère pour sa préparation, utilisation et procédé de préparation

Nº publicación: FR3164315A1 09/01/2026

Solicitante:

ARKEMA FRANCE [FR]
I TEN [FR]
CONSERVATOIRE NAT DES ARTS ET METIERS [FR]
ARKEMA FRANCE,
I-TEN,
CONSERVATOIRE NATIONAL DES ARTS ET METIERS

Resumen de: FR3164315A1

La présente invention concerne le domaine des cellules électrochimiques, une unité mère et un procédé pour leur préparation.