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Composition d’électrolyte pour élément électrochimique lithium-ion

Resumen de: FR3174654A1

Un élément électrochimique lithium-ion comprenant :a) au moins une électrode positive comprenant une première matière active positive qui est un phosphate lithié d’au moins un métal de transition fonctionnant à un potentiel moyen supérieur ou égal à 3,6 V vs. Li+/Li ;b) au moins une électrode négative comprenant une matière active négative ;c) un électrolyte comprenant :- un ou plusieurs solvants, l’un d’eux étant du propionate de méthyle (MP), - un ou plusieurs diluants choisis parmi le 1,2-difluorobenzène et ses isomères, le 1,2,3-trifluorobenzène et ses isomères, le 1,2,3,4-tétrafluorobenzène et ses isomères, le pentafluorobenzène, l’hexafluorobenzène, le 2-fluorotoluène et ses isomères et un mélange de ceux-ci, la proportion volumique dudit un ou plusieurs diluant représentant de 50 à 80% du volume total dudit un ou plusieurs solvants et dudit un ou plusieurs diluants,- du bis(fluorosulfonyl)imidure de lithium Li(FSO2)2N (LiFSI),- un additif de passivation de l’électrode négative choisi parmi le monofluorocarbonate d’éthylène (FEC), le carbonate de vinylène (VC) et un mélange de ceux-ci. Figure d’abrégé : Figure 1

COMPOSITION DE POLYMÈRE, SON PROCÉDÉ DE PRÉPARATION ET SON UTILISATION

Resumen de: FR3174562A1

La présente invention concerne une composition de polymère comprenant les motifs monomériques de styrène, butadiène et acide (méth)acrylique, son procédé de préparation et son utilisation. En particulier, la présente invention concerne une composition de polymère comprenant les motifs monomériques de styrène, butadiène et acide (méth)acrylique sous forme de particules polymériques, plus particulièrement sous forme de dispersion aqueuse. Plus particulièrement, la présente invention concerne une composition de polymère comprenant les motifs monomériques de styrène, butadiène et acide (méth)acrylique sous forme de particules polymériques, plus particulièrement sous forme de dispersion aqueuse, son utilisation, notamment comme liant pour électrodes pour batteries, et des batteries la comprenant.

Cellule de batterie incorporant des capteurs

Resumen de: FR3174659A1

Cette cellule de batterie comprend :- un boîtier comprenant un couvercle (1) comprenant un orifice (19) de remplissage d’un électrolyte (4),- un empilement d’électrodes (3) disposé à l’intérieur dudit boîtier,- des moyens de liaison électrique (5) dudit empilement d’électrodes (3) avec l’extérieur de ladite cellule, traversant ledit couvercle (1),- des moyens électroniques de mesure (9a, 9b) de paramètres de fonctionnement de la cellule, disposés à l’intérieur dudit boîtier,- un bouchon (21) apte à fermer ledit orifice (19), traversé par au moins un organe électriquement conducteur (29),- des moyens (17) pour établir une connexion électrique dudit organe électriquement conducteur (29) avec lesdits moyens électroniques de mesure (9a, 9b) lorsque ledit bouchon (21) est introduit dans ledit orifice (19). (Fig. 1)

Méthode de caractérisation thermique d’un module de cellules électrochimiques de référence de batterie électrique

Resumen de: FR3174656A1

L'invention concerne une méthode de caractérisation thermique d’un module (200) de référence de batterie électrique du type comportant une cage (210) configurée pour entourer un ensemble de cellules (100, 101, 102) électrochimiques de référence empilées le long d'une direction longitudinale (X), la cage (210) comprenant une paire de plaques d'extrémité (211) parallèles et une paire de plaques latérales (212) parallèles reliant lesdites plaques d'extrémité (211) aux deux extrémités de sorte que les deux plaques d'extrémité (211) sont configurées pour enserrer l'ensemble de cellules (100, 101, 102) dans la direction longitudinale (X), la méthode de caractérisation étant remarquable en ce qu’elle comprend : une étape d’assemblage d’un module (200) comportant des cellules de test (102) instrumentées et des cellules électrochimiques de référence (101) ; une étape de mise en place du module (200) sur un dispositif d’essai (300) ; une étape d’application d’un profil de contraintes prédéterminé au module (200); une étape de mesures et d’enregistrement des mesures issues des instruments durant l’étape d’application du profil de contraintes prédéterminé ; et en ce que, lors de l’étape d’assemblage du module (200), les cellules de test (102) sont disposées dans le module(200) à des positions prédéterminées. (Fig. 7)

RECHARGEABLE ENERGY STORAGE SYSTEM HEATING

Resumen de: US20260341829A1

A system includes a rechargeable energy storage system, a quasi-resonant circuit and a controller. The rechargeable energy storage system has a positive terminal, a negative terminal, an internal impedance, and a battery temperature sensor. The battery temperature sensor is operational to generate a battery temperature signal representative of a storage system temperature within the rechargeable energy storage system. The quasi-resonant circuit is coupled between the positive terminal and the negative terminal, and is operational to draw an alternating current signal through the internal impedance of the rechargeable energy storage system in response to a resonant control signal. The controller is coupled to the quasi-resonant circuit and is operational to sense the storage system temperature within the rechargeable energy storage system via the battery temperature signal, and generate the resonant control signal in response to the battery temperature signal to heat the rechargeable energy storage system.

END-LINKED POLYURETHANEUREA AND SHAPED ARTICLES THEREFROM

Resumen de: US20260337446A1

The present disclosure describes end-linked linear segmented polyurethaneurea (end-linked sPUU) polymers chemically crosslinked through end-linking reactions to preserve the structural functions of the soft segments and hard segments of the component linear sPUU chains. The disclosure also relates to shaped articles made of the polymers in which the end-linking reactions occur during and/or after articles are shaped. The crosslinked polymers, which can be fluorine free, are useful for a variety of purposes, including electronic applications, with the polymers and shaped articles having improved stability and durability to heat and/or solvent exposure. The end-linked sPUUs and articles comprising them are insoluble in many organic solvents and find use as binders for cathode active materials of lithium ion and other batteries.

APPARATUS AND METHOD FOR CALCULATING HEIGHT OF A BATTERY CELL

Resumen de: US20260338539A1

An apparatus for calculating a height of a battery cell according to embodiments of the present disclosure includes: an imager photographing a first surface of a battery cell arranged such that each electrode tab is located at a first end and a second end in a longitudinal direction; an irradiator irradiating light onto the first surface of the battery cell; a measurer located at a first end in a vertical direction perpendicular to the longitudinal direction of the battery cell and measuring a shape of a first side surface of the battery cell on which a first protrusion and a second protrusion are formed; and a controller calculating a height which is a length in a vertical direction of the battery cell.

ELECTRODE ASSEMBLY AND SECONDARY BATTERY INCLUDING THE SAME, MANUFACTURING APPARATUS AND METHOD FOR THE SAME

Resumen de: US20260341774A1

An electrode assembly is disclosed. In some implementations, the electrode assembly includes: a first electrode plate wound in a winding direction and including a first non-coated region in which a first electrode active material is not coated; a second electrode plate wound in the winding direction and including a second non-coated region in which a second electrode active material is not coated; and a separator disposed between the first electrode plate and the second electrode plate, wherein at least one of the first non-coated region or the second non-coated region includes a plurality of connection portions folded along folding lines.

SYSTEM, CONTAINER, AND METHOD FOR CONTAINERIZED ENERGY DELIVERY

Resumen de: US20260341825A1

Containerized energy storage is provided. A container may include a power conversion system in a power conversion zone along a first face of the container, the power conversion system configured to convert an AC input power signal to a DC output power signal and to an AC output power signal. The container may include a cooling system comprising a heat exchanger in a heat exchange zone along a second face of the container, the second face opposite from the first face, the heat exchanger configured to exchange heat between (i) a plurality of components of the energy storage system positioned within the container in an energy storage zone positioned between the heat exchange zone and the power conversion zone, and (ii) an environment exterior to the container.

TEMPERATURE-EQUALIZING PLATE AND BATTERY PACK

Resumen de: US20260341833A1

A temperature-equalizing plate and a battery pack are provided. The temperature-equalizing plate includes a first heat-conducting layer, a second heat-conducting layer, and a third heat-conducting layer. The first heat-conducting layer includes a first surface and a second surface opposite to each other in a first direction. The second heat-conducting layer includes a third surface and a fourth surface opposite to each other in the first direction. The third heat-conducting layer is disposed between the first heat-conducting layer and the second heat-conducting layer in the first direction, and includes a fifth surface, a sixth surface, a seventh surface, and an eighth surface connected in turn, the fifth surface being in abutment with the second surface and the seventh surface being in abutment with the fourth surface.

SODIUM SECONDARY BATTERY AND ELECTRICAL DEVICE

Resumen de: AU2024433669A1

Disclosed in the present application are a sodium secondary battery and an electrical device. The sodium secondary battery comprises a positive electrode active material, the positive electrode active material comprising a sodium ion layered transition metal oxide; an R element is doped in the sodium ion layered transition metal oxide, and the R element comprises at least one of Ti, Al, Mg, Zr or Zn; the difference between the mole percentage r of the R element in metal elements excepting Na in a surface selected area and the mole percentage s of the R element in the metal elements excepting Na in a bulk selected area is 5%-30%.

FEEDING METHOD, FEEDING SYSTEM, AND BATTERY PRODUCTION LINE

Resumen de: US20260336942A1

The feeding method includes: controlling vehicles to transport first and second materials to a first docking position and a second docking position. A driving assembly is controlled to transfer first material carrying trays carrying the first materials on the first transport vehicle to a material pick-up position; controlling a manipulator to transfer the first materials at the material pick-up position to a material placement position until the first material carrying trays become empty trays; controlling the driving assembly to transfer the empty trays onto the third transport vehicle; then controlling the driving assembly to transfer the second materials to the material pick-up position; controlling the manipulator to transfer the second materials at the material pick-up position to the material placement position until second material carrying trays become empty trays; and controlling the driving assembly to transfer the second empty trays onto the first transport vehicle.

METHOD FOR PREPARING SILICON NEGATIVE ELECTRODE MATERIAL BY USING SIF4 AS RAW MATERIAL

Resumen de: WO2026223422A1

The present invention relates to the field of negative electrode materials for batteries, and provides a method for preparing a silicon negative electrode material by using SiF4 as a raw material. In the method for preparing a silicon negative electrode material by using SiF4 as a raw material provided by the present invention, by using silicon tetrafluoride as a silicon source and controlling the placement positions of substrates, the radio frequency power of an induction radio frequency coil, and the temperatures of reaction regions, microcrystalline silicon and amorphous silicon can be simultaneously obtained; and by controlling the ratio of silicon tetrafluoride to hydrogen to argon, a silicon material that can be used as a negative electrode of a lithium-ion battery can be further obtained. In the method provided by the present invention, microcrystalline silicon and amorphous silicon can be simultaneously obtained, and a lithium-ion battery prepared from the microcrystalline silicon and amorphous silicon exhibits relatively good cycle life and Coulombic efficiency. The microcrystalline silicon and the amorphous silicon can be used as negative electrode materials.

SECONDARY LITHIUM BATTERY

Resumen de: US20260341924A1

The present disclosure relates to a lithium secondary battery including: a laminate including a plurality of positive electrodes, a plurality of separators, and a plurality of negative electrodes; a plurality of positive electrode tab lead portions extending from the laminate; and a positive electrode tab joined to the plurality of positive electrode tab lead portions. The positive electrode tab lead portion is formed by a positive electrode current collector of the positive electrode extending from the laminate. The positive electrode tab lead portion and the positive electrode current collector each include a resin layer, and an aluminum layer on both surfaces thereof. In an X-ray diffraction 2θ pattern of the aluminum layer, peak A is present between 38.0° and 39.0°, a ratio (B/A) of peak B intensity between 44.0° and 45.0° to peak A intensity is 0.4 or less, and a half-value width of peak A is 0.4°or less.

ELECTRODE STACK

Resumen de: US20260341776A1

The electrode stack includes: a plurality of electrode sheets stacked along a first direction; and an elongated separator extending in a zigzag manner between the electrode sheets. Each of the electrode sheets includes a current collector foil and an electrode active material layer provided on one surface of the current collector foil. In at least one of the electrode sheets, at least one protective member extending along the outer edge of the electrode active material layer is provided on either or both of the electrode sheet and the separator. The outer edge of the electrode active material layer has a shape having at least one corner. Each of the at least one protective member extends, at any one of the at least one corner, along two sides that define the corner.

BATTERY MONITORING AND PROTECTION MODULE AND BATTERY MANAGEMENT SYSTEM FORMED BY USING THE SAME

Resumen de: US20260342110A1

A battery monitoring and protection module and a battery management system formed by using the same are provided and applicable to monitoring and protecting a status of at least one battery. The disclosed module includes a battery monitor and control circuit, a first stage notification switch and a second stage notification switch. When the battery is approaching abnormal, a battery detecting and managing circuit controls the first stage notification switch to form an open circuit, and disables a power conditioning device to pause and observe the battery first. On the other hand, when the battery is abnormal, both the first and second stage notification switches are open, and the battery detecting and managing circuit disconnects a battery protection switch to cut current and protect batteries. By employing the present invention, it is believed that less communication rate for data transmission is achieved, so that power consumption can be reduced.

SECONDARY BATTERY AND BATTERY PACK INCLUDING THE SECONDARY BATTERY

Resumen de: US20260341855A1

A secondary battery includes a case including an opening portion and an electrode assembly arranged inside the case. An upper cap is arranged in the opening portion, and a lower cap is arranged to face the upper cap and connected to the electrode assembly. A vent plate is arranged between the upper cap and the lower cap. An insulator is arranged between the vent plate and the lower cap. An anti-rotation portion is provided to prevent relative rotation of the vent plate and the lower cap.

BATTERY ENCLOSURE AND BATTERY PACK

Resumen de: WO2026223186A1

The present application provides a battery enclosure and a battery pack. The battery enclosure comprises an enclosure body and a mount. The enclosure body is internally provided with a support member. A mounting groove is formed on the support member. The mount overlaps with the support member. The mount is provided with a connecting member. The connecting member is engaged in the mounting groove.

BATTERY CASE AND BATTERY PACK

Resumen de: WO2026223202A1

Provided in the present application are a battery case and a battery pack. The battery case comprises a first case assembly and a second case. The first case assembly comprises a first case and a case frame, wherein the case frame is provided with a first connecting portion. The second case is connected to the case frame via the first connecting portion. The second case and the first case are stacked in a first direction, and the case frame encloses at least part of the side wall of the first case and at least part of the side wall of the second case.

RESTRAINT, BATTERY SYSTEM, AND AIRCRAFT

Resumen de: US20260341885A1

A restraint for restraining a lithium metal battery including a plurality of battery cells, the restraint including a restraint member having a frame member, and a plurality of units made of a rubber-based material and arranged inside the frame member, each of the plurality of units including at least one protrusion portion, and at least one unit of the plurality of units being arranged in an orientation different from that of another unit, and a fixing member which fixes the plurality of units in a state where the plurality of units are pressed against the lithium metal battery and pressurized, is provided. Each of the plurality of units has a planar base portion and the at least one protrusion portion, and a length of the protrusion portion along a first direction is different from a length of the protrusion portion along a second direction different from the first direction.

SECONDARY BATTERY, BATTERY PACK, AND VEHICLE

Resumen de: US20260341796A1

In general, according to an embodiment, a secondary battery includes negative electrodes and a separator. Each of the negative electrodes includes a negative electrode current collector containing aluminum or an aluminum alloy and a negative electrode tab extending along a first direction. Each of the negative electrodes has a second negative electrode end positioned at an end in a second direction. The separator has a first separator end positioned at an end in the first direction and a second separator end positioned at an end in the second direction. The second separator end protrudes beyond the second negative electrode end. Lnmin denoting a minimum value of Ln which is a distance between the second negative electrode end and the second separator end is 1.5 mm or more. The difference between the Lnmin and Lnmax denoting a maximum value of the Ln is 1.0 mm or more.

APPARATUS FOR STACKING BATTERY PLATES

Resumen de: US20260336952A1

An apparatus for stacking battery plates comprising: a first battery plate holding stage; a delivery conveyor system; a second battery plate holding stage disposed beneath the first battery plate holding stage; and a removal conveyor system; in which: the first battery plate holding stage comprises a plurality of moveable elements moveable between a first position in which the elements form a stage to support a battery plate delivered by the delivery conveyor system to a second position which allows the battery plate to fall onto the second holding stage; and the second holding stage comprises a stage for holding a stack of battery plates received from the first holding stage; wherein the second holding stage is moveable between a first position where battery plates are received from the first holding stage and a second position allowing the stack of battery plates to be removed by the removal conveyor system.

BATTERY PACK AND ELECTRICAL DEVICE

Resumen de: US20260341838A1

The application provides a battery pack and an electrical device. The battery pack includes a cell assembly and a heat exchange assembly. The cell assembly includes a plurality of battery cells, a side surface of each battery cell where an output terminal is located includes a functional region and a non-functional region, and at least one of the output terminal, a liquid injection port, or an explosion-proof valve is provided on the functional region. The heat exchange assembly includes a first heat exchange component and a first support member, and the first support member abuts between the adjacent first heat exchange component and a non-functional region.

BATTERY MODULE

Resumen de: US20260341843A1

A battery module includes: a housing having an internal space formed therein and having an inlet through which a refrigerant is introduced and an outlet through which the refrigerant is discharged; a battery cell stack which is accommodated in the housing and in which a plurality of battery cells are stacked in a predetermined stacking direction; and a plurality of first supports formed to protrude from a bottom surface of the housing and supporting the battery cell stack.

HEAT INSULATION PAD AND PREPARATION METHOD THEREFOR

Nº publicación: US20260336260A1 29/10/2026

Solicitante:

GONGYI VAN RES INNOVATION COMPOSITE MATERIALS CO LTD [CN]
GONGYI VAN-RESEARCH INNOVATION COMPOSITE MATERIALS CO., LTD.

Resumen de: US20260336260A1

A heat insulation pad includes a thermal insulation core material, where the thermal insulation core material includes at least two layers of thermal insulation felt connected via an adhesive layer; and the adhesive layer includes a water-based adhesive and the adhesive layer is provided with a gas escape channel. The heat insulation pad of the present disclosure exhibits a large thickness, a flat surface, a small thickness tolerance, and excellent thermal insulation performance.