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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

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.

BATTERY PACK

Resumen de: WO2026223035A1

The present application relates to the technical field of batteries, and discloses a battery pack. In the battery pack of the present application, by defining that when 0.2≤c/d-2.8≤9 and/or 0.3≤l/d-6.4≤13, the value range of the thickness of a thermal insulation pad is 0.2-6 mm, the thermal insulation pad can block heat transfer between two single batteries, thereby reducing the risk of thermal runaway of one of the two single batteries after thermal runaway of the other single battery, and improving the thermal safety of the battery pack; moreover, during development of battery packs of different models, configurations of thermal insulation pads can be quickly determined, thereby facilitating improving research and development efficiency and reducing costs. In addition, the present application can prevent the thermal insulation pad from being too thin to effectively block heat transfer between two adjacent single batteries, and can also prevent the thermal insulation pad from being so thick that a single battery readily compresses the adjacent thermal insulation pad during charging and discharging, causing the thermal insulation pad to deform and, in turn, resulting in excessive deformation of a battery case.

SELF-SUPPORTING FLAME-RETARDANT POLYMER ELECTROLYTE, PREPARATION METHOD AND USE THEREOF, AND SOLID-STATE LITHIUM METAL BATTERY

Resumen de: US20260341804A1

Provided are a self-supporting flame-retardant polymer electrolyte, a preparation method and use thereof, and a solid-state lithium metal battery. The self-supporting flame-retardant polymer electrolyte includes: a polymer skeleton, formed by polymerization of an enenitrile substance, a phosphate ester containing an unsaturated carbon-carbon double bond, and a cross-linking agent; and succinonitrile, triethyl phosphate, and a lithium salt, all dispersed in the polymer skeleton.

POSITIVE ELECTRODE ACTIVE MATERIALS, POSITIVE ELECTRODES, AND RECHARGEABLE LITHIUM BATTERIES

Resumen de: US20260341733A1

Some example embodiments provide a positive electrode active material, a positive electrode including the same and a rechargeable lithium battery. The positive electrode active material includes core particles in a form of secondary particles in which a plurality of primary particles are agglomerated, including a lithium nickel-based composite oxide; and a coating layer disposed on the surface of the core particle and containing cobalt, aluminum, and yttrium.

TWO-PHASE IMMERSION LIQUID-COOLED BATTERY PACK

Resumen de: US20260341837A1

Provided is a two-phase immersion liquid-cooled battery pack including a case, cells, and buffer assemblies. The case includes a cavity, and the cavity is configured to be filled with immersion liquid. The cells are provided in the cavity at intervals. The buffer assemblies are provided among the cells. Each buffer assembly includes a buffer member and spacers. The buffer member is connected to a side of the cell. The spacers are disposed on a side of the buffer member remote from the cell to form a passage between the buffer members. The passage is configured to contain the immersion liquid.

COMPOSITE SEPARATOR

Resumen de: US20260341903A1

A composite separator is disclosed. The composite separator comprises a porous polyolefin substrate and an inorganic coating layer, wherein the inorganic coating layer coated on at least one surface of the porous polyolefin substrate comprises a plurality of inorganic particles, a binder resin, a hydrophilic polymer metal salt, and a polyamide epichlorohydrin resin. The composite separator has good high temperature resistance.

METHOD FOR ACQUIRING CHARACTERISTIC KNEE POINT OF BATTERY PACK, BMS, BATTERY PACK, AND ELECTRICAL DEVICE

Resumen de: WO2026223592A1

A method for acquiring a characteristic knee point of a battery pack, a BMS, a battery pack, and an electrical device. During maintenance of a battery pack, a BMS can determine, on the basis of a current temperature of the battery pack, a corresponding target C-rate (S101), and control a charging device to charge the battery pack at the target C-rate (S102), thereby determining, on the basis of voltage variation data of the battery pack during the charging process, a characteristic knee point of the battery pack (S103).

COVER PLATE ASSEMBLY, BATTERY, BATTERY PACK AND ELECTRIC DEVICE

Resumen de: WO2026223503A1

The present disclosure relates to the technical field of batteries. Provided are a cover plate assembly, a battery, a battery pack and an electric device. The cover plate assembly comprises a cover plate body, a conductive member, a cap component, and a lead-out tab. The conductive member is located on one side of a first through hole in the cover plate body and passes through the cover plate body. The cap component seals the first through hole. The lead-out tab is connected to the conductive member, and a portion thereof extends to the side of the first through hole facing away from the cap component or into the first through hole, and forms a first connecting portion for connection with a tab, thereby improving the volumetric energy density of the battery.

ELECTROLYTE INJECTION METHOD, DETECTION APPARATUS, ELECTROLYTE INJECTION SYSTEM, AND MANUFACTURING SYSTEM FOR BATTERY CELLS

Resumen de: US20260341934A1

The electrolyte injection method includes: constructing an electrolyte injection curve based on the obtained electrolyte injection time and electrolyte injection volume of a battery sample; dividing the electrolyte injection curve into at least two segments so that the average slopes of two adjacent segments of electrolyte injection curves are different, and taking a connection point between the two adjacent segments of electrolyte injection curves as a target time inflection point; calculating electrolyte injection parameters according to the target time inflection point, the electrolyte injection parameters including the number of electrolyte injection operations and the electrolyte injection volume corresponding to each electrolyte injection operation; and providing an electrolyte to an initial battery according to the electrolyte injection parameters, and performing standing treatment between two adjacent electrolyte injection operations to obtain an electrolyte-injected battery. The electrolyte injection method can significantly improve the electrolyte injection efficiency.

SECONDARY BATTERY AND PREPARATION METHOD THEREFOR, AND ELECTRICAL APPARATUS

Resumen de: WO2026223144A1

The present application provides a secondary battery and a preparation method therefor, and an electrical apparatus. The secondary battery comprises a positive electrode sheet. The positive electrode sheet comprises: a positive electrode current collector; a positive electrode active material layer, the positive electrode active material layer being located on at least one side of the positive electrode current collector, the positive electrode active material layer comprising a positive electrode active material, and the Mohs hardness of the positive electrode active material being 3-6; and a primer coating layer, the primer coating layer being located between the positive electrode current collector and the positive electrode active material layer, and the porosity of the primer coating layer being less than or equal to 3%.

BATTERY REJUVENATION METHOD AND REJUVENATION SOLUTION

Resumen de: WO2026222990A1

The present invention relates to a battery rejuvenation method and a rejuvenation solution. The battery rejuvenation method comprises the following steps: S1: perforating a battery to be decommissioned, and injecting a rejuvenation solution; and S2: sealing and then standing for 36 hours or more, wherein said battery is a lithium-ion battery, and the addition amount of the rejuvenation solution is 0.3-1.1 g/Ah. The rejuvenation method provided in the present invention restores the battery capacity by simply injecting the rejuvenation solution, thereby prolonging the service life, without generating gas or damaging the battery structure, thus maintaining battery safety and being environmentally friendly. The rejuvenation solution provided in the present invention has simple components, the lithium salt and the organic solvent used are common upstream products in the battery industry, the preparation process is mature, and the costs are low, thereby facilitating large-scale production.

ELECTRODE STACK

Resumen de: US20260341797A1

The electrode stack includes: a plurality of electrode sheets stacked along a first direction; and an elongated separator that extends in a zigzag manner between the electrode sheets. A plurality of notches is provided at an outer edge of at least one of the electrode sheets. The separator includes, at each of the notches, a joint portion at which surfaces facing each other are joined together.

TAB ADHESIVE TAPE APPLICATION APPARATUS

Resumen de: WO2026223326A1

The present application relates to a tab adhesive tape application apparatus, comprising driving mechanisms, adhesive tape application heads, and smoothing mechanisms. Each adhesive tape application head and the corresponding smoothing mechanism are both mounted at a driving end of the corresponding driving mechanism. When each adhesive tape application head acquires an adhesive tape, the corresponding driving mechanism drives the adhesive tape application head and the corresponding smoothing mechanism to move together towards a battery cell to be subjected to adhesive tape application, until a corresponding flexible abutting member comes into contact with a battery cell body; then, the flexible abutting member is driven by a corresponding smoothing driving member to move towards the adhesive tape application head, so as to uniformly apply one portion of the adhesive tape to the surface of the battery cell body; when the flexible abutting member moves to the tail end of the battery cell body, the driving mechanism continues to drive the adhesive tape application head and the smoothing mechanism to move, and the flexible abutting member moves obliquely under the combined action of the driving mechanism and the smoothing driving member, so as to work in conjunction with the adhesive tape application head to gradually apply the other portion of the adhesive tape to a tab; and during the adhesive tape application, the adhesive tape is applied mainly depending on the friction forc

FLEXIBLE MULTILAYER BATTERY PACK INSULATOR FOR AN ELECTRIC VEHICLE

Resumen de: WO2026226621A1

A flexible multilayer battery pack insulator to be disposed between stacked cells, within a cell module, of a battery pack of an electric vehicle. The insulator has a multilayer wall including a first layer of material having a first inner surface and a first outer surface with a first flame-resistant coating layer bonded to the first outer surface. Further, a second layer of material having a second inner surface and a second outer surface with a second flame-resistant coating layer bonded to the second outer surface. Further yet, an intermediate layer of foam sandwiched between the first inner surface of the first layer and the second inner surface of the second layer.

ELECTRONIC DEVICE

Resumen de: US20260343757A1

An electronic device including a housing, an electronic element and a movable member is provided. The housing includes an accommodation space. The electronic element is detachably disposed in the accommodation space. The movable member is movably connected to the housing, and the movable member includes a rotating shaft and a cover plate connected to each other. When the movable member is in a closed state to engage with the housing and cover the accommodation space, the movable member first slides relative to the housing along a first direction and then moves relative to the housing along a second direction, so that the cover plate is separated from the housing and the rotating shaft rotates relative to the housing, so that the movable element is in an open state. The first direction is different from the second direction.

BATTERY CELL AND BATTERY PACK

Resumen de: WO2026223488A1

Provided in the present application are a battery cell and a battery pack, relating to the technical field of batteries. In the battery cell provided in the present application, a circuit board and an explosion-proof valve are far away from each other, thereby reducing interference of the explosion-proof valve on the circuit board, and improving reliability and stability of the circuit board.

SAMPLING ASSEMBLY, POWER DISTRIBUTION BOX, BATTERY PACK AND ELECTRIC DEVICE

Resumen de: WO2026223476A1

A sampling assembly, a power distribution box, a battery pack and an electric device. The sampling assembly comprises: a connecting busbar, which is connected to a contact of a relay and is provided with a positioning slot at the connecting end; and a sampling tab, which has one end fitted into the positioning slot and connected to the contact of the relay, and the other end connected to a control board.

LITHIUM ION BATTERY AND METHOD FOR MANUFACTURING LITHIUM ION BATTERY

Resumen de: US20260341723A1

A method for manufacturing a lithium ion battery including: forming a PGLYD polymer imparted with adhesiveness by forming urethane bonds in a PGLYD polymer; forming a cathode that includes lithium, iron, phosphorus, and amorphous carbon; forming an anode that includes graphite and amorphous carbon; and enclosing the cathode, the anode, and a predetermined electrolyte in a predetermined container and hermetically sealing the container, wherein at least one of the cathode or the anode includes, as a binder, the PGLYD polymer imparted with adhesiveness.

SOLID-STATE BATTERY CELL, BATTERY APPARATUS, ELECTRICAL APPARATUS, POSITIVE ELECTRODE, POSITIVE ELECTRODE ACTIVE MATERIAL, AND PREPARATION METHOD THEREFOR

Resumen de: WO2026223153A1

A solid-state battery cell, a battery apparatus, an electrical apparatus, a positive electrode, a positive electrode active material, and a preparation method therefor. The solid-state battery cell comprises a positive electrode, an electrolyte layer, and a negative electrode. The electrolyte layer is located between the positive electrode and the negative electrode. The positive electrode comprises a positive electrode film layer. The positive electrode film layer comprises a positive electrode active material and a sulfide electrolyte. The positive electrode active material comprises one or more of an alkaline earth element-doped lithium titanium sulfide and an alkaline earth element-doped lithium titanium selenium sulfide. The solid-state battery cell can have high energy density, good cycle performance, and good rate performance.

BENT LITHIUM BATTERY CONNECTING PIECE, COVER PLATE AND LITHIUM BATTERY

Resumen de: WO2026222983A1

A bent lithium battery connecting piece, a cover plate, and a lithium battery, relating to the technical field of lithium batteries. The bent lithium battery connecting piece comprises a first welding portion (100), a second welding portion (200), and a third welding portion (300), wherein the first welding portion (100) is used for welding a pole, and the second welding portion (200) and the third welding portion (300) are used for welding cell tabs. The second welding portion (200) and the third welding portion (300) are separately connected to the first welding portion (100) by means of bent portions (110), and due to the bent portions (110), the first welding portion (100) is located in a plane different from that of the second welding portion (200) and the third welding portion (300). The bent portions (110) are each provided with a clearance position (120), and the clearance positions (120) enable gaps to be respectively formed between the first welding portion (100) and the second welding portion (200) and between the first welding portion (100) and the third welding portion (300). By means of the clearance positions, clearance space can be provided for cell tabs, thereby preventing impact on normal welding caused by tabs overlapping with protrusions of the bent portions of the connecting piece.

BATTERY MODULE, BATTERY PACK, AND ELECTRIC DEVICE

Resumen de: WO2026223440A1

The present disclosure relates to the technical field of batteries, and provides a battery module, a battery pack, and an electric device. The battery module comprises a lithium battery assembly, a first power distribution assembly, a sodium battery assembly, and a second power distribution assembly. The lithium battery assembly is electrically connected to the first power distribution assembly, and the sodium battery assembly is electrically connected to the second power distribution assembly. This keeps the lithium battery assembly and the sodium battery assembly independent of each other, preventing mutual interference between the lithium battery assembly and the sodium battery assembly. Parameters of the lithium battery assembly and the sodium battery assembly, such as internal resistance, voltage, capacity, discharge curve, and service life, do not need to be consistent. Accordingly, the battery module does not need to be provided with components and corresponding circuits for making electrical performance parameters of the lithium battery assembly and the sodium battery assembly consistent, thereby simplifying battery module structure and reducing battery module cost.

MANUFACTURING METHOD FOR INTEGRATED ELECTRODE

Resumen de: WO2026223722A1

The present application relates to the technical field of battery electrodes. Disclosed is a manufacturing method for an integrated electrode. The method comprises: subjecting precursor fibers to pre-oxidation, carbonization and cutting to obtain carbonized fiber filaments; activating the carbonized fiber filaments to obtain porous fiber filaments; subjecting the porous fiber filaments to a vapor deposition reaction to combine same with an energy storage battery electrode active material, so as to obtain active fiber filaments; and coating the active fiber filaments with a conductive and/or ion-conducting coating material to obtain an integrated electrode. By means of the synergistic effects of the porous carbon framework structural design, vapor deposition of active materials, and surface coating, the problem of active materials of traditional electrodes being prone to delaminating from current collectors during charging and discharging is solved, and the electrode manufacturing process is simplified. The manufactured self-supporting integrated electrode has high specific capacity and excellent cycling stability and rate performance, and can be applied to energy storage devices such as lithium-ion batteries, sodium-ion batteries, lithium-sulfur batteries and solid-state batteries.

METHODS AND SYSTEMS FOR SETTING UP BATTERY ASSEMBLY PROCESS OR EVALUATION EQUIPMENT

Resumen de: US20260341813A1

A method is provided for preparing for processing of a production battery. The method includes determining a product exterior surface finish, product dimensions, product mass, and product center-of-gravity of the production battery; identifying a thermoplastic material and a surface grain for forming a housing having an exterior surface finish that is the same as the product exterior surface finish; modeling, with a processor, a surrogate battery including the housing and a ballast mass received within the housing, to provide the surrogate battery with a surrogate mass the same as the product mass and a surrogate center-of-gravity the same as the product center-of-gravity; forming the housing from the thermoplastic material and with the surface grain; forming the surrogate battery by positioning the ballast mass within the housing; and setting up equipment for processing the production battery by engaging the equipment with the surrogate battery.

VERFAHREN ZUR BATTERIEIDENTIFIZIERUNG

Resumen de: DE102026115593A1

Ein Verfahren zur Batterieidentifizierung wird an einem Batteriemodul während der Herstellung eines Batteriepacks durchgeführt und beinhaltet: Messen einer Spannung einer Temperaturmessschaltung, die konfiguriert ist, um eine Temperatur einer Sammelschiene zu messen, die an dem Batteriemodul in einem Zustand bereitgestellt ist, in dem zu einem Zeitpunkt der Montage des Batteriemoduls in einem Gehäuse des Batteriepacks kein Strom durch die Sammelschiene fließt; Schätzen eines Eigenwiderstands eines Thermistors, der mit der Temperaturmessschaltung verbunden ist, basierend auf der gemessenen Spannung; Berechnen der Spannung der Temperaturmessschaltung basierend auf dem geschätzten Eigenwiderstand und einem Widerstand eines Unterscheidungswiderstands, der in der Temperaturmessschaltung bereitgestellt ist; und Bestimmen, ob das Batteriemodul ein unverfälschtes Produkt ist, durch Vergleichen der berechneten Spannung mit der gemessenen Spannung.

SEALING STRUCTURE AND BATTERY

Resumen de: WO2026223441A1

A sealing structure and a battery. The sealing structure comprises a terminal post (1), a plastic component (2) and a sealing ring (3). The terminal post (1) comprises a crown portion (13), a head portion (11) and a support portion (12) that are coaxially connected in sequence, wherein the diameter of the support portion (12) and the diameter of the crown portion (13) are both greater than the diameter of the head portion (11); a smooth transition is provided between the support portion (12) and the head portion (11) via a first transition structure (14), and/or between the crown portion (13) and the head portion (11) via a second transition structure (15); the plastic component (2) is provided with a through hole, the plastic component (2) is sleeved outside the head portion (11) and abuts against the end face of the crown portion (13) facing the head portion (11); and the sealing ring (3) is sleeved outside the head portion (11), the sealing ring (3) is elastically deformable and abuts against the first transition structure (14) and/or the second transition structure (15), used for sealing the gap between the plastic component (2) and each of the crown portion (13), the head portion (11) and the support portion (12).

LID ASSEMBLY AND LITHIUM-ION BATTERY

Resumen de: US20260341852A1

A lid assembly and a lithium-ion battery is provided. The lid assembly includes a lid base, a lower insulating member stacked with the lid base, and a terminal and an explosion protection valve disposed on the lid base. The terminal penetrates the lower insulating member and the lid base. A terminal base plate is provided on the terminal. A first protruding portion corresponding to a position of the explosion protection valve and a second protruding portion are provided on the lower insulating member. A surface of the second protruding portion includes a planar region and a curved region. A minimum dimension of an orthogonal projection of the curved region on the lid base in a length direction is L1. A minimum distance between the planar region and the terminal base plate is L0, which satisfies 0.5≤L1/L0≤0.9.

CATHODE ACTIVE MATERIAL, PREPARATION METHOD THEREFOR, CATHODE, AND ELECTROCHEMICAL DEVICE COMPRISING SAME

Resumen de: WO2026225988A1

A cathode active material for improving the performance of an electrochemical device is disclosed. According to one aspect, a Li- and Mn-rich cathode active material coated with a lithium iron phosphate compound, a preparation method therefor, a cathode, and an electrochemical device comprising same are disclosed.

BATTERY DEVICE AND ELECTRIC DEVICE

Resumen de: WO2026222596A1

Embodiments of the present disclosure provide a battery device and an electric device. The battery device comprises a case assembly, a thermal management assembly, and a battery assembly. The battery assembly comprises a plurality of battery layers stacked in the height direction of the battery device, wherein the plurality of battery layers are arranged in the case assembly. The thermal management assembly comprises a heat exchange member and heating members, wherein at least one medium flow channel is provided inside the heat exchange member, the at least one medium flow channel is configured to allow a heat exchange medium to flow therethrough, and the heat exchange medium is configured to exchange heat with the battery layers. The heat exchange member is arranged between the plurality of battery layers, and the heat exchange member is configured to carry at least some of the battery layers. The heating member is arranged between the battery layer and the heat exchange member, or the heating member is arranged between the battery layer and the case assembly.

COOLING HEAT EXCHANGER

Resumen de: US20260338498A1

A cooling heat exchanger including a cooling flow path through which a cooling heat medium flows, and a cooling surface provided on its surface while being configured to be superposed on a cooling target for cooling the cooling target. The cooling heat exchanger includes: a hollow outer wall member in which the cooling flow path is provided, the outer wall member including a pair of cooling walls separately provided at mutually facing portions of the outer wall member and each including the cooling surface formed on its surface; and a plate-shaped inner fin arranged in an internal region of the outer wall member, the inner fin separating the internal region into two in a direction in which the cooling walls face each other while integrally including a first projection and a second projection jutting out from respective surfaces of the inner fin.

BATTERY MANAGEMENT SYSTEM

Resumen de: US20260343201A1

A battery management system for managing a cell stack. The battery management system includes: a monitoring circuit that monitors the cell stack; and a management circuit that is connected to the monitoring circuit via wireless communication, and manages the cell stack. In the battery management system, the monitoring circuit and the management circuit each include a plurality of wireless communication sections that use wireless-communication modulation schemes that are mutually different, and the wireless-communication modulation schemes that are mutually different include a ultra-wide band (UWB) scheme.

SOLID-STATE BATTERY CELL, BATTERY DEVICE, ELECTRIC DEVICE, POSITIVE ELECTRODE, POSITIVE ELECTRODE ACTIVE MATERIAL, AND PREPARATION METHOD THEREFOR

Resumen de: WO2026223162A1

A solid-state battery cell, a battery device, an electric device, a positive electrode, a positive electrode active material, and a preparation method therefor. The solid-state battery cell comprises a positive electrode, an electrolyte layer, and a negative electrode, wherein the positive electrode comprises a positive electrode active material layer. The positive electrode active material layer comprises a positive electrode active material and a sulfide electrolyte. The positive electrode active material comprises a matrix and a coating layer located on at least part of the surface of the matrix, wherein the matrix comprises a lithium transition metal oxide, the lithium transition metal oxide comprises Ni, and the molar proportion of Ni in transition metal elements of the lithium transition metal oxide is 80% or more; and the coating layer comprises a lithium metal sulfide compound LiMexSy. The solid-state battery cell has good cycling performance.

BATTERY ELECTROLYTE, SECONDARY BATTERY, AND ELECTRIC DEVICE

Resumen de: WO2026223399A1

A battery electrolyte, a secondary battery, and an electric device. The battery electrolyte comprises an electrolyte salt, an organic solvent, and additives. The additives include fluoroethylene carbonate, a first additive represented by formula (I), and a second additive represented by formula (II): Formula (I) and Formula (II). In formula (I), R1 is selected from an alkenylene group and an alkynylene group; and R2 and R3 are each selected from an alkyl group and a haloalkyl group. In formula (II), X1, X2, and X3 are each selected from O or S; n1, m n2, and n3 are each 1 or 2; m is 0, 1 or 2; y and z are each 0 or 1; and R4 and R5 are each selected from a hydrogen atom, an alkyl group, and a haloalkyl group. The mass ratio of the first additive to the second additive is (0.3-5):1. By simultaneously adding the first additive and the second additive having specific structures and specific proportions in combination with the fluoroethylene carbonate, the battery electrolyte can simultaneously improve the initial coulombic efficiency, fast-charging performance, and cycle stability of the battery.

METHOD FOR MANUFACTURING SECONDARY BATTERY

Resumen de: WO2026224913A1

One embodiment of the present invention provides a method for manufacturing a secondary battery, the method comprising a step for performing initial charging on an uncharged secondary battery that includes a positive electrode, a negative electrode containing a niobium-containing oxide, and a separator, and that has a structure in which the positive electrode, the separator, and the negative electrode are laminated in a first direction. The method for manufacturing a secondary battery comprises a step for performing initial charging that satisfies formula (1) in a state where a secondary battery group in which N-number (N is 2 or more) of the uncharged secondary batteries are arranged in the first direction is restrained from both sides thereof.　(1): 105%≤(T2/T1)≤115% In formula (1), T1 represents the total thickness of N-number of the uncharged secondary batteries, and T2 represents the total thickness of N-number of secondary batteries.

BATTERY CELL

Resumen de: US20260341937A1

Provided is a battery cell. The battery cell includes a housing and a seal assembly. Specifically, the housing has an accommodation space at an interior of the housing and an electrolyte-injection hole formed at a surface of the housing, and the electrolyte-injection hole is in communication with the accommodation space. The seal assembly includes a hot-melt adhesive film, the electrolyte-injection hole is sealed by the hot-melt adhesive film, and the hot-melt adhesive film is configured to be melted at a predetermined temperature.

Secondary Battery and Method of Manufacturing the Same

Resumen de: US20260341927A1

A secondary battery includes an electrode assembly and a current collector. The electrode assembly includes a plurality of first electrode plate portions and a plurality of second electrode plate portions arranged to define a stack along a thickness dimension of the electrode assembly. The thickness dimension is smaller than a longitudinal dimension of the electrode assembly. Each of the plurality of first electrode plate portions includes a first electrode tab and forms a plurality of first electrode tabs, and each of the plurality of second electrode plate portions includes a second electrode tab and forms a plurality of second electrode tabs. The current collector includes at least a portion located between the plurality of first and second electrode tabs. The plurality of first electrode tabs and the plurality of second electrode tabs are offset from one another along the thickness dimension with the current collector interposed therebetween.

HOUSING WITH DEFORMATION COMPENSATION

Resumen de: WO2026223707A1

The present application relates to the technical field of batteries, and discloses a housing with deformation compensation, which expands outward to form a square housing. The square housing comprises: a main body having a hollow cavity, wherein the main body has an opening; and at an open end of the main body, among two side edges of the main body in the x direction, at least a middle region of each side edge in the x direction is recessed towards the hollow cavity, so as to form a compensation section on the side edge, and form a compensation surface on the side surface where the side edge is located. In the present application, the compensation sections are formed on the two side edges of the open end of the main body in the x direction, and the compensation surfaces are formed on the side surfaces where the side edges are located. When the housing with deformation compensation expands outward, a required square housing is exactly formed, thereby reducing the deformation of the housing, improving the assembly performance and sealing performance between the housing and a cover plate, avoiding problems such as poor welding between the housing and the cover plate and burning of an electrode assembly, ensuring the safety performance of an assembled battery, improving the dimensional accuracy and appearance quality of the assembled battery, and facilitating the use of the battery in pack assembly.

BATTERY MANAGEMENT MODULE AND BATTERY MANAGEMENT SYSTEM USING THE SAME

Resumen de: US20260341812A1

A battery management module can include: a switch circuit, coupled between a positive electrode of a battery and a positive output terminal of the battery management module, and being configured to charge or discharge the battery; an analog front-end chip, configured to monitor information of the battery, where the information of the battery comprises at least voltage information and current information of the battery; and where the analog front-end chip comprises a driving circuit configured to generate a driving signal for driving the switch circuit and a diagnostic circuit configured to diagnose a fault condition of the switch circuit.

LITHIUM-ION SECONDARY BATTERY, ELECTRICAL APPARATUS, AND POSITIVE ELECTRODE MATERIAL

Resumen de: WO2026223142A1

A lithium-ion secondary battery, an electrical apparatus, and a positive electrode material. The lithium-ion secondary battery comprises a positive electrode sheet, the positive electrode sheet comprising a positive electrode current collector and a positive electrode film layer arranged on at least one side of the positive electrode current collector and comprising a positive electrode material. The positive electrode material comprises a lithium transition metal oxide. The lithium transition metal oxide comprises nickel, cobalt, and element M. Element M comprises manganese and/or aluminum. On the basis of the total number of moles of the nickel, cobalt, and element M, the molar proportion of nickel is greater than or equal to 50% and less than 100%. The lithium transition metal oxide comprises primary particles having a particle size of 0.5 μm to 6 μm. In a first direction, the primary particles sequentially comprise a surface region, a subsurface region, and an interior region. In the first direction, the content of nickel in the interior region is a fixed value, and the content of nickel in the interior region is greater than or equal to the content of nickel in the subsurface region.

BATTERY CELL AND MANUFACTURING METHOD THEREFOR, BATTERY APPARATUS, AND ELECTRICAL APPARATUS

Resumen de: WO2026223148A1

The present application provides a battery cell and a manufacturing method therefor, a battery apparatus, and an electrical apparatus. The battery cell comprises a casing having an accommodating cavity. An electrode assembly is disposed within the accommodating cavity. The electrode assembly comprises a first electrode sheet, a second electrode sheet, and an electrolyte layer, the first electrode sheet and the second electrode sheet having opposite polarities. The first electrode sheet and the second electrode sheet are stacked along a stacking direction. The electrolyte layer is used for isolating the first electrode sheet from the second electrode sheet. The first electrode sheet comprises a first main body and a first tab extending from an outer peripheral surface of the first main body. The second electrode sheet comprises a second main body and a second tab extending from an outer peripheral surface of the second main body. A portion of the second main body protrudes beyond the outer peripheral surface of the first main body. A first insulating layer is disposed along an outer periphery of the first main body and connected to the outer peripheral surface of the first main body, and in the stacking direction, at least part of the first insulating layer overlaps with the second main body. In the battery cell provided in the present application, the first insulating layer effectively inhibits edge overlapping of the first electrode sheet and the second electrode sheet.

NEGATIVE ELECTRODE ACTIVE MATERIAL AND METHOD FOR PRODUCING SAME

Resumen de: WO2026224967A1

The present invention is a negative electrode active material having negative electrode active material particles, wherein: the negative electrode active material particles include a porous carbon structure which is a base material; an amorphous low-valence nanosilicon oxide is dispersed inside the porous carbon structure; a part or all of the surfaces of the negative electrode active material particles are covered with a carbon-based layer separate from the base material porous carbon; Si-C bonds exist in at least a portion of the negative electrode active material particles; and a low-valence nanosilicon oxide having a different Si phase structure from the low-valence nanosilicon oxide included in a bulk part in the range deeper than 50 nm from the surface of the negative electrode active material particles is included in a surface layer part in the range up to a depth of 50 nm from the surface of the negative electrode active material particles. Thus, provided is a negative electrode active material making it possible to increase the capacity while maintaining battery characteristics.

BATTERY MANUFACTURING METHOD AND BATTERY

Resumen de: WO2026223005A1

A battery manufacturing method, specifically comprising the following steps: preparing a positive electrode slurry and a negative electrode slurry; coating the prepared positive electrode slurry on the surface of a current collector, and drying same to obtain a positive electrode sheet; coating the prepared negative electrode slurry on the surface of a current collector, and drying same to obtain a negative electrode sheet; rolling and cutting the obtained positive electrode sheet and negative electrode sheet, and then assembling same into a pouch-type dry cell; and carrying out baking, electrolyte injection and wetting, formation, aging, and capacity grading on the pouch-type dry cell to obtain a finished battery. During preparation of the positive electrode slurry and the negative electrode slurry, a pore-forming agent which is one of components of an electrolyte is added to the positive electrode slurry or/and the negative electrode slurry, and during wetting, the pore-forming agent is dissolved in the electrolyte, thereby causing pores to form in the positive electrode sheet or/and the negative electrode sheet during dissolution.

CELL WINDING NEEDLE APPARATUS AND CELL WINDING DEVICE

Resumen de: US20260341773A1

A cell winding needle apparatus and a cell winding device. The cell winding needle apparatus includes: a mounting base; an assembly housing provided with a first end fixedly mounted to the mounting base and a second end that is a free end; at least one set of transmission assembly mounted to the assembly housing and including a plurality of transmission members arranged around an axis of the assembly housing; and a plurality of adsorption housings connected to the respective transmission members in a one-to-one correspondence and combined to form a cylindrical structure. The transmission members drive the adsorption housings to move in a direction perpendicular to the axis of the assembly housing, so as to increase or reduce an outer diameter of the cylindrical structure.

THERMAL MANAGEMENT DEVICE, AND THERMAL MANAGEMENT SYSTEM FOR VEHICLE

Resumen de: WO2026223478A1

A thermal management device (1), and a thermal management system (200) for a vehicle. The thermal management device (1) comprises: a body (4) having a first inlet (5) and a second inlet (9) for receiving fluid and a first outlet (8) and a second outlet (6) for outputting fluid; a first fluid passage (21) formed in the body (4) and connecting the first inlet (5) and the first outlet (8), wherein a fluid flow rate in the first fluid passage (21) is adjustable; and a second fluid passage (22) formed in the body (4), connecting the second inlet (9) and the second outlet (6), and having a throttling portion, wherein the fluid flow rate in the first fluid passage (21) is adjusted independently of that in the second fluid passage (22), and the flow cross-sectional area in the throttling portion is smaller than that in the second fluid passage (22).

MODIFIED NATURAL GRAPHITE, NEGATIVE ELECTRODE SHEET, BATTERY, BATTERY PACK, AND ELECTRIC DEVICE

Resumen de: WO2026223590A1

A modified natural graphite, a negative electrode sheet, a battery, a battery pack, and an electric device. The modified natural graphite satisfies K. K is 11 to 90. K = (C101 + C002) × QP × ρ, wherein C101 and C002 are crystallographic parameters of the modified natural graphite and are respectively calculated from the wavelength of cathode rays used for X-ray diffraction, the full widths at half maximum of carbon (101) and (002) peaks, and half of 2θ values corresponding to the carbon (101) and (002) peaks; QP is the pore density of the modified natural graphite, in units of mL/g; and ρ is the true density of the modified natural graphite, in units of g/cm3.

Connection Detection Circuit, Detection Method, and Battery Management System

Resumen de: US20260341809A1

A battery management system includes a battery pack, and a battery management chip including a main circuit, a first pin, at least one second pin and a third pin. Whether a lowest voltage terminal of the battery pack is connected to the third pin is determined based on the voltage or substrate current of the at least one second pin. When the lowest voltage terminal of the battery pack is not connected to the third pin, the main circuit is controlled to turn off. When the lowest voltage terminal of the battery pack is connected to the third pin, the main circuit is controlled to turn on. This ensures that the main circuit starts to operate after the lowest voltage terminal of the battery pack is connected to third pin of the battery management chip, avoiding causing abnormal output or damage to the chip.

A SMOKE ALARM

Resumen de: WO2026222712A1

A smoke alarm, comprising a panel (1), an upper cover (2), and a lower housing (3) arranged sequentially from top to bottom, as well as a control board assembly (7) and a smoke chamber (6) installed between the lower housing (3) and the upper cover (2). The panel (1) is movably mounted above the upper cover (2) in a vertically adjustable manner and is provided with a button post (8).The button post (8) extends downward through a hole in the upper cover(2) to a position above a button. When the panel (1) is pressed downward, the button post (8) depresses the button to activate the smoke alarm device.

BATTERY PACK DESIGN METHOD

Resumen de: WO2026223034A1

The present application relates to the technical field of batteries, and discloses a battery pack design method. In the battery pack design method of the present application, lithium iron phosphate is used as a positive electrode material of battery cells. If c/d≤2.8 Ah/mm and l/d≤6.4, this indicates that the risk of thermal runaway of the battery cells is low, and even if thermal runaway occurs to a battery cell, it is not likely to affect battery cells adjacent to the battery cell. Therefore, no thermal insulation pad is provided between any two battery cells, thereby improving the space utilization rate of the battery pack and reducing costs. If c/d>2.8 Ah/mm or l/d>6.4, this indicates that the risk of thermal runaway of the battery cells increases, and a thermal insulation pad is provided between at least two battery cells to improve the thermal insulation performance between the battery cells, thereby ensuring the safety of the battery pack.

BATTERY CELL, BATTERY PACK AND VEHICLE INCLUDING SAME

Resumen de: WO2026225860A1

A battery cell according to the present invention comprises: an electrode assembly wound around a central axis in a state in which a separator is interposed between a plurality of electrodes; a cell housing having an open end portion and a closed end portion facing each other along an axial direction parallel to the central axis, wherein the open end portion defines an open portion communicating with the inner space of the cell housing, and the electrode assembly is accommodated in the inner space; and a can lead coupled to the open end portion of the cell housing so as to cover the open portion, and provided with a plurality of electrode coupling portions electrically connected to one of the electrodes of the electrode assembly, wherein the ratio of the total area occupied by the plurality of electrode coupling portions against the total area of the can lead is 25% to 50%.

THERMAL MANAGEMENT SYSTEM FOR VEHICLE

Resumen de: WO2026226292A1

A thermal management system for a vehicle includes a radiator and a chiller. The thermal management system may include multiple configurations to provide cooling to components of the vehicle. In a first configuration, the components may be cooled via a radiator. In a second configuration, some of the components may be cooled via the radiator while other components may be cooled via a chiller. In a third configuration, the components may be cooled via the chiller. The configuration of the thermal management system may be based on the temperature of the components.

SUPPRESSANT MANAGEMENT

Resumen de: US20260341943A1

Disclosed is an electrical power storage system comprising an electrical power source enclosure and a suppressant collector. The enclosure is arranged to seal an electrical power source therein and comprises a first venting aperture arranged to allow venting of gas generated by the electrical power source when undergoing an over-heating event to outside of the enclosure. The first venting aperture is provided through an enclosure side wall of the enclosure. The suppressant collector is arranged outside of the enclosure and to collect a part of a volume of liquid suppressant when released into the enclosure, the part of the volume of suppressant leaving the enclosure via the first venting aperture. The suppressant collector comprises an exit aperture providing an exit from the suppressant collector, where the exit aperture is at a higher level than the first venting aperture.

NEGATIVE ELECTRODE ACTIVE MATERIAL AND METHOD FOR PRODUCING SAME

Resumen de: WO2026224964A1

The present invention is a negative electrode active material having negative electrode active material particles, the negative electrode active material being characterized in that: the negative electrode active material particles include a porous carbon structure that is a base material; the porous carbon structure has an Si-C bond therein; an amorphous low-valence nanosilicon oxide is dispersed in a surface layer part; and a tetravalent silicon oxide capable of occluding and desorbing Li is included in at least part of the low-valence nanosilicon oxide. There is accordingly provided a negative electrode active material in which the generation of ionic substances is reduced and excessive decomposition of an electrolyte solution is suppressed, resulting in making it possible to improve battery cycle characteristics.

LITHIUM IRON PHOSPHATE COMPOSITE MATERIAL AND PREPARATION METHOD THEREFOR, POSITIVE ELECTRODE SHEET, AND SECONDARY BATTERY

Resumen de: WO2026222705A1

The present application provides a lithium iron phosphate composite material and a preparation method therefor, a positive electrode sheet, and a secondary battery. The lithium iron phosphate composite material comprises a core layer, wherein the core layer comprises an inner core, a coating layer coating the inner core, and an interdiffusion layer located between the coating layer and the inner core. The material of the inner core comprises lithium iron phosphate, the material of the coating layer comprises sodium vanadium fluorophosphate, and the material of the interdiffusion layer comprises vanadium-doped lithium iron phosphate. The core layer of the lithium iron phosphate composite material uses the lithium iron phosphate as the inner core, the sodium vanadium fluorophosphate coats the inner core, and the interdiffusion layer structure is provided between the inner core and the coating layer, such that the lithium iron phosphate composite material has excellent ion diffusion efficiency, a high theoretical specific capacity, a high voltage platform, a low powder resistivity, a stable charge-discharge platform, and excellent cycle performance while realizing mixed migration of Li/Na ions, and the electrochemical performance of the composite material, such as energy density and cycle performance, is effectively improved.

TOP COVER ASSEMBLY, BATTERY, AND ELECTRICITY-CONSUMPTION DEVICE

Resumen de: US20260341857A1

A top cover assembly, a battery and an electricity-consumption device. The top cover assembly includes a terminal post, a top cover, a upper plastic member, a pressing ring and a limiting body; the terminal post is connected to the top cover; the upper plastic member is sleeved on the terminal post, and is located between the top cover and the terminal post; the upper plastic member includes an upper plastic body and a positioning hole, the positioning hole passes through the upper plastic body; the pressing ring is sleeved on the terminal post; the limiting body is inserted through the positioning hole. A portion of the outer surface of the limiting body is interference-fitted to a portion of the inner surface of the positioning hole.

ELECTROLYTE AND PREPARATION METHOD FOR ELECTROLYTIC COPPER FOIL FOR LITHIUM BATTERY

Resumen de: WO2026222893A1

The present invention relates to the technical field of lithium batteries, and in particular to an electrolyte and a preparation method for an electrolytic copper foil for a lithium battery. The electrolyte comprises the following components at the following concentrations: sulfuric acid at 105-120 g/L, a brightener at 15-120 mg/L, gelatin at 10-60 mg/L, a tensile-strength enhancer at 3-50 mg/L, a stabilizer at 5-55 mg/L, a wetting agent at 1-15 mg/L, Cl- at 10-30 mg/L, with the balance being water. The present invention can significantly improve the tensile strength of a copper foil while reducing the thickness thereof, with the tensile strength being greater than 700 MPa and the elongation being greater than 5.0%.

METHOD FOR REDUCED PARTICLE SIZE AND/OR INCREASED SURFACE AREA OF ELECTROACTIVE METAL MATERIALS

Resumen de: WO2026226585A1

A method can include: receiving an electroactive metal; comminuting the electroactive metal; optionally comminuting a salt; optionally processing battery components; and optionally assembling a battery. The method preferably functions to process an electroactive metal used for producing active material for metal conversion batteries, molten salt batteries, or sodium metal halide batteries. The battery can include a housing, electrodes (e.g., cathode, anode, etc.) electrolyte (e.g., solid electrolyte, secondary electrolyte, etc.), separator, and/or any suitable materials and/or components. The electrodes can be made from a mixture of particles of a brittle iron alloy and a salt.

VEHICLE, ENERGY MANAGEMENT SYSTEM AND ENERGY MANAGEMENT METHOD FOR A VEHICLE

Resumen de: WO2026223919A1

The invention relates to an AI-assisted energy management system (2) for a low-voltage on-board electrical system of a vehicle (1). It comprises, as software agents (LMA, PCA, SOA, SA), a load management agent (LMA) for prioritizing critical systems, a predictive charging agent (PCA) for optimizing battery charging cycles of a low-voltage battery, a standby optimization agent (SOA) for minimizing energy consumption during parking, and a supervising agent (SA) for coordinating energy distribution on the basis of driving profiles and environmental conditions (UB). The energy management system (2) uses machine learning and real-time vehicle data to increase the service life of the low-voltage battery, to reduce the power consumption in standby mode and to optimize the energy efficiency. The invention furthermore relates to a vehicle (1) and to an energy management method for a vehicle (1).

COVER PLATE ASSEMBLY AND BATTERY

Resumen de: AU2024466542A1

Disclosed in the present application are a cover plate assembly and a battery. The cover plate assembly comprises a cover plate body, a monitoring device, conductive members and fixing members; the monitoring device is mounted on a side of the cover plate body, and is located between a first post and a second post on the cover plate body; the conductive members are connected to the monitoring device, the first post and the second post, are located between the cover plate body and the fixing members, and are used for fixing the conductive members. In the present application, there is no need to provide an individual power supply to supply power to the monitoring device, thereby reducing the number of parts.

NEGATIVE ELECTRODE ACTIVE MATERIAL AND METHOD FOR PRODUCING SAME

Resumen de: WO2026224966A1

The present invention is a negative electrode active material that has negative electrode active material particles, wherein the negative electrode active material is characterized in that: the negative electrode active material particles contain a porous carbon structure serving as a base material; an amorphous low-valence nanosilicon oxide is dispersed within the porous carbon structure; an Si-C bond is present in at least a portion of the low-valence nanosilicon oxide; and, in a negative electrode that uses this negative electrode active material, nanosilicon and the low-valence nanosilicon oxide absorb and desorb Li and the Si-C bond is exposed during Li absorption. As a result, the present invention provides a negative electrode active material that suppresses electrolyte solution decomposition and as a result can improve the battery cycle characteristics and increase the capacity.

BATTERY CELL, BATTERY AND ELECTRIC DEVICE

Resumen de: AU2024446362A1

A battery cell, a battery and an electric device. The battery cell comprises a casing component, a terminal post component and an electrode component, wherein the casing component comprises a mounting wall; the terminal post component is mounted on the mounting wall and comprises a terminal post body; the electrode component is accommodated in an accommodating cavity and comprises an active material coating portion, an electrically conductive portion and an insulating member; the electrically conductive portion is connected between the active material coating portion and the terminal post body; at least part of the insulating member is arranged between the end of the active material coating portion connected to the electrically conductive portion and the terminal post body; the insulating member is provided with an avoidance hole; and the insulating member is blocked between the part of the electrically conductive portion passing through the insulating member and connected to the terminal post body and the active material coating portion. In the technical solutions of the embodiments of the present application, the insulating member can reduce the risk of the mounting wall of the casing component corroding due to the exposure of the active material coating portion, and can also reduce the probability of the electrically conductive portion being incorrectly inserted into the active material coating portion due to redundancy, thereby being conducive to improving the operational

Battery Case and Secondary Battery Including the Same

Resumen de: US20260341851A1

A battery case having excellent durability and a secondary battery including the same are disclosed. The battery case includes: (1) a first polymer layer; (2) a second polymer layer; and (3) a gas barrier layer disposed between the first polymer layer and the second polymer layer. The battery case further includes at least one cup portion curved in one direction, wherein a K value according to a following Equation (1) as described herein is 63.0 or more.

METHOD FOR PREPARING POSITIVE ELECTRODE MATERIAL BY MEANS OF TWO-STEP SINTERING, MATERIAL, ELECTRODE AND BATTERY

Resumen de: WO2026222941A1

The present invention relates to a method for preparing a positive electrode material by means of two-step sintering, a material, an electrode and a battery. The preparation method comprises: subjecting a lithium-containing compound, iron phosphate and a solid-state first carbon source to high-speed ball milling with anhydrous lower alcohol as a medium, and drying same, so as to obtain a precursor; subjecting the precursor to a first instance of calcination in an inert atmosphere, so as to obtain a powder sample; and subjecting the powder sample to a second instance of calcination in an inert atmosphere, and while the temperature thereof is maintained, introducing a liquid second carbon source until the reaction is finished. By means of a method that uses a combination of the solid carbon source and the liquid carbon source, the carbon coating content and uniformity of the positive electrode material can be effectively improved, thereby improving the carbon coating effect and cycle performance of the positive electrode material. By using a liquid carbon source for carbon coating via chemical vapor deposition, the safety of experiments can be improved, and transportation and storage are facilitated. Compared with a gaseous carbon source, the liquid carbon source has lower costs and is beneficial for improving the economic benefits of a product.

STEUERVERFAHREN UND ELEKTRONISCHE EINRICHTUNG

Resumen de: DE102026116766A1

Eine elektronische Einrichtung weist eine erste Batterie, eine zweite Batterie, die eine kleinere Kapazität als die erste Batterie aufweist, eine Ladeschnittstelle, die dazu eingerichtet ist, mit einer externen Ladeeinrichtung verbunden zu werden, und einen Energieverwaltungschip auf, der dazu eingerichtet ist, auf Grundlage einer virtuellen Energiequellenvorrichtung, welche die erste Batterie und die zweite Batterie charakterisiert, die erste Batterie und die zweite Batterie unter Verwendung der externen Ladeeinrichtung zu laden und einen Systemschaltkreis unter Verwendung der ersten Batterie und der zweiten Batterie mit Strom zu versorgen.

ONE-DIMENSIONAL LITHIUM MANGANESE OXIDE NANORODS WITH CONTROLLABLE DIAMETER, AND PREPARATION METHOD THEREFOR AND USE THEREOF

Resumen de: US20260341693A1

One-dimensional lithium manganese oxide nanorods with controllable diameter, and a preparation method therefor and use thereof are provided. Manganese sulfate, potassium permanganate, a structure-directing agent, and a surfactant are dispersed in a solvent to perform a hydrothermal reaction, thereby obtaining a black precipitate. The black precipitate is subsequently calcined to obtain manganese dioxide nanorods. The manganese dioxide nanorods are then mixed with lithium hydroxide and subjected to a two-step calcination process to obtain one-dimensional lithium manganese oxide nanorods. The nanorods exhibit uniform diameter and very low surface energy. When used as cathode materials, the nanorods can effectively shorten lithium-ion transport paths, resist agglomeration, and possess good flexibility. During long-term operation under high current, the nanorods can maintain structural integrity, which is favorable for improving electrode rate capability and cycling performance.

BATTERY UNIT AND DEVICE INCLUDING SAME

Resumen de: WO2026225785A1

A battery unit according to an embodiment of the present invention includes: an end plate including first and second end plates respectively covering both sides of a battery cell stack in which a plurality of battery cells are stacked; and a fixing strap having a first end connected to the first end plate and a second end connected to the second end plate to couple the battery cell stack and the end plate. Each of the first end and the second end of the fixing strap may include a fork-shaped locking part, and the end plate may include a reinforcing part engaged with the locking part.

INTEGRATED ELECTROCHEMICAL CELL AND METHOD FOR LITHIUM EXTRACTION FROM BRINE AND CONVERSION TO LITHIUM PRODUCT

Resumen de: AU2025374971A1

An integrated electrochemical cell and method for processing lithium brine to obtain recovered lithium and produce a lithium product in a single continuous process. The integrated cell has a catholyte chamber with an intercalating electrode for lithium recovery from a lithium brine streaming through the catholyte chamber. A first anion exchange membrane separates the catholyte chamber from a buffer chamber. The buffer chamber streams a salt of a brine-predominant anion (e.g., a chloride salt for lithium brine containing predominantly chloride salt, or a carbonate salt for lithium brine containing predominantly carbonate salt ) for removing the brine-predominant anion and thus preventing precipitation of salt species on first anion exchange membrane. An intermediate membrane separates the buffer chamber from a compatible anion chamber that streams a compatible salt that contains compatible or product anions desired for formation of the lithium product. A second anion exchange membrane separates compatible anion chamber from an anolyte chamber. The anolyte chamber has a lithium de-intercalating electrode for releasing lithium ions and it streams a lithium-bearing solution to obtain the lithium product through pairing of lithium ions with the product anions received from the compatible anion chamber via the second anion exchange membrane. A voltage source is provided for applying a potential difference between the electrodes to drive the process.

SODIUM-ION BATTERY AND PREPARATION METHOD THEREFOR, ELECTRIC DEVICE, CARBON-BASED MATERIAL AND SECONDARY BATTERY

Resumen de: WO2026222917A1

Provided in the present disclosure are a sodium-ion battery and a preparation method therefor, an electric device, a carbon-based material and a secondary battery, wherein a negative electrode sheet comprises a negative electrode current collector and a negative electrode film layer located on at least one surface of the negative electrode current collector, the negative electrode film layer comprises a carbon-based material, the carbon-based material comprises graphene sheets, and a space volume H1 between graphene sheets having an interlayer spacing of greater than 0.4 nm and the total space volume Htotal between all the graphene sheets satisfy: 40%≤H1/Htotal≤60%.

SECONDARY BATTERY AND ELECTRONIC APPARATUS

Resumen de: US20260341791A1

An electrolyte solution includes a Formula I compound, and based on a mass of the electrolyte solution, a mass percentage of the Formula I compound is W1%, where 2≤W1≤50. The negative electrode sheet includes a negative electrode current collector and a negative electrode material layer disposed on at least one surface of the negative electrode current collector. The negative electrode material layer contains silicon element, and based on a mass of the negative electrode material layer, a mass percentage of the silicon element is x %, where x≤25. A thickness of the negative electrode material layer is D μm, a surface of the negative electrode material layer is provided with a plurality of recesses, and a depth of the recess is d μm, where P=d/D, P≥0.1, and 0.4≤W1/(x×P)≤62.5.

END PLATE AND POWER BATTERY

Resumen de: WO2026223708A1

An end plate, comprising a tab support region and two electrode assembly support regions. The two electrode assembly support regions are respectively arranged on two sides of the tab support region. The midpoint of the end plate along a first direction protrudes in a direction facing away from an electrode assembly to form an arched structure.

STORAGE BATTERY CONTROL DEVICE AND ELECTRICITY STORAGE SYSTEM

Resumen de: US20260342124A1

An MCU of a module interface receives a detection signal of a cell voltage from a cell monitoring unit, and transmits a charge reduction signal for reducing charge power of a string to an MCU of a power converter when the cell voltage is equal to or larger than an upper limit threshold value. The MCU controls the power converter to bring the charge power of the string close to a charge power instruction value while a control signal is received from a string controller and a charge reduction signal is not received from the MCU, and controls the power converter to bring the charge power of the string close to the charge power instruction value while the control signal is received from the string controller and the charge reduction signal is received from the MCU.

Thermal Propagation Containment for a Battery Pack

Resumen de: US20260341826A1

The present invention relates to thermal management systems for batteries, particularly batteries used in electric vehicles (EVs), stationary generators, or other high-performance energy storage applications. An energy storage device including a major component that includes first and second major subcomponents configured to interconnect at a thermally isolable interface arranged therebetween. The first and second major subcomponents being constituent components of an electrochemical system that is configured to store energy for the energy storage device and cooled via fluid flow in a primary outlet direction across the thermally isolable interface. The first and second major subcomponents being arranged such that the first major subcomponent is thermally isolable from the second major subcomponent for a minimum isolation duration when the energy storage device experiences a detrimental thermal event.

COOLING PLATE, COOLING DEVICE, HEAT EXCHANGER, BATTERY PACK AND VEHICLE

Resumen de: WO2026223528A1

The present application relates to the technical field of vehicles. Provided are a cooling plate, a cooling device, a heat exchanger, a battery pack and a vehicle. The cooling plate comprises a split flow channel, wherein the split flow channel comprises a main flow channel and a plurality of branch flow channels; and each branch flow channel comprises: a plurality of main flow channel portions, one end of each main flow channel portion being in communication with the main flow channel, and any two main flow channel portions and the main flow channel forming a Y-shaped topological structure; and a plurality of primary sub-flow channel portions, one end of each primary sub-flow channel portion being in communication with the other end of the corresponding main flow channel portion, and any two primary sub-flow channel portions and the communicated main flow channel portion forming a Y-shaped topological structure. In the cooling plate of the present application, by means of the hierarchically designed Y-shaped topological structures, the split flow channel reduces the deviation in the flow rates of each branch, improves the flow distribution uniformity of a refrigerant, and ensures the temperature uniformity of a battery cell assembly to the greatest possible extent.

BATTERY TRANSPORTATION PROTECTION DEVICE

Resumen de: AU2025271528A1

Provided in the embodiments of the present application is a battery transport protection device. The battery transport protection device comprises a case body, measurement members and a fire-fighting mechanism. The case body has a first accommodating cavity used for accommodating batteries. The measurement members are arranged in the case body, and are used for measuring environmental parameters in the first accommodating cavity. The fire-fighting mechanism is arranged in the case body, and is used for releasing a fire-fighting medium to the first accommodating cavity when the environmental parameters exceed threshold values. The measurement members are provided to measure the environmental parameters in the first accommodating cavity, and when the environmental parameters measured by the measurement members exceed the threshold values, the fire-fighting mechanism releases the fire-fighting medium to the first accommodating cavity, so as to perform firefighting (fire extinguishing, cooling, etc.) on the batteries, thus reducing the risk of loss (casualties, property loss) caused by battery fires, and helping to improve the reliability of the battery transport protection device during battery transportation.

POLYAMIDE POLYMER FOR BINDER, AND SLURRY, ELECTRODE, SEPARATOR, AND SECONDARY BATTERY INCLUDING SAME

Resumen de: US20260341719A1

Proposed are a polyamide polymer including a first monomer unit containing a diamine residue having at least one carbonyl group on a backbone or side chain thereof, and a slurry, an electrode, a separator, and a secondary battery including the same.

QUASI-SOLID-STATE ELECTROLYTE AND PREPARATION METHOD THEREFOR, BATTERY, AND ELECTRIC DEVICE

Resumen de: WO2026223018A1

The present application discloses a quasi-solid-state electrolyte and a preparation method therefor, a battery, and an electric device. The preparation method comprises: mixing an electrolyte salt with a carbonate solvent to prepare a base electrolyte solution; and adding a diluent and an initiator into the base electrolyte solution to perform a reaction so as to prepare a quasi-solid-state electrolyte, wherein the diluent includes a cyclic monomer diluent capable of undergoing ring-opening polymerization, and the mass ratio of the diluent to the initiator to the base electrolyte solution is (30-70):(0.1-0.5):(30-70). In the present application, during preparation of the quasi-solid-state electrolyte, a precursor solution containing a locally high-concentration solvation structure is formed, and in-situ polymerization technology is used to prepare the quasi-solid-state electrolyte having low impedance, high ionic conductivity, excellent rate capability, and good safety. A battery assembled with the quasi-solid-state electrolyte prepared in the present application has excellent charging-discharging performance, and excellent cycle stability under a high-rate condition.

POSITIVE ELECTRODE SHEET, LITHIUM-ION SECONDARY BATTERY, AND ELECTRICAL DEVICE

Resumen de: WO2026223074A1

Embodiments of the present application relate to a positive electrode sheet, a lithium-ion secondary battery, and an electrical device. The embodiments of the present application construct a theoretical formula by establishing a physical model, and establish a relational expression between the true density and Dv50 of a phosphate material and a ternary material, as well as the surface density and mass percentages of a first active layer and a second active layer in an electrode sheet structure. In addition, the present application takes into account the influence of intrinsic material parameters and the structure of the electrode sheet on safety performance and fast-charging performance, thereby more objectively and accurately achieving regulation of battery performance.

DIRECT CURRENT FAST CHARGING STATION INCLUDING RIPPLE CURRENT HEATING

Resumen de: US20260336434A1

A direct current (DC) fast charging station includes a power source. A bidirectional power converter is connected to the power source. The bidirectional power converter includes an alternating current (AC) to DC (AC-DC) inverter connected to the power source and a DC-DC converter connecting the AC-DC inverter to a charger port. A charge controller is communicatively coupled to the charger port and is controllably coupled to the bidirectional power converter. The charge controller includes a memory storing instructions configured to cause the charge controller to impose an AC ripple current on an output of the DC-DC converter.

Discharging at Least one Battery via Discharge Apparatus Having a Plurality of Battery Connection Points Arranged in Series

Resumen de: US20260342123A1

A method for discharging at least one battery via a discharge apparatus, wherein the discharge apparatus comprises a plurality of battery connection points arranged in series, and to the discharge apparatus.

ELECTRODE MIXTURE AND BATTERY

Resumen de: AU2025262787A1

The main purpose of this disclosure is to provide an electrode mixture capable of suppressing an increase in battery resistance.　For this purpose, the disclosure provides an electrode mixture containing an electrode active material, a sulfide solid electrolyte containing a lithium element, a sulfur element, and a phosphorus element, and an organic compound, wherein the organic compound has two or more benzene rings, and at least a portion of the organic compound is present between the electrode active material and the sulfide solid electrolyte.

CONTAINER FOR STORAGE AND TRANSPORT OF ENERGY STORAGE DEVICES

Resumen de: AU2025257069A1

Provided herein are protective containers for storage and transport of energy storage device, wherein the container includes an outer body and an internal casing and a hinged lid having at least two compartments, one situated at least partially over the internal casing and capable of releasing a neutralizing material towards the internal casing, when the internal temperature increases, and a second compartment configured to hold an additional amount of neutralizing material, wherein the neutralizing material is configured to reduce heat, suppress fire and/or reduce or neutralize gases formed from damage or combustion of the energy storage device.

PROTECTIVE COMPOSITION, METHODS, AND USES THEREOF

Resumen de: AU2025258556A1

A protective composition against heat and/or hazardous materials discharged from energy storage devices is provided herein, the composition includes: an inorganic salt in an amount of between 10-45% (w/w); an inorganic porous adsorbent; and water, wherein a total amount of water in the protective composition is at least about 35% (w/w). Further provided herein, a protective composition against heat and/or hazardous materials discharged from energy storage devices, the composition includes: an inorganic salt; an inorganic porous adsorbent; a hydrogel; and water.

SYSTEM AND METHOD OF SEPARATING LITHIUM-ION BATTERY COMPONENTS FOR RECYCLING

Resumen de: AU2024439725A1

In the initial processing phase of a LIB separation system raw lithium-ion batteries are de-energized, and the discharged batteries' circuit boards and exterior metals are removed for recycling. The remaining deconstructed batteries are shredded in the presence of an aqueous solution to form a semi- solid black mass. In a black mass separation phase the black mass is fed into an elutriator that scrubs and separates the material into high specific gravity components and low specific gravity components for subsequent recycling of their respective components. The elutriator may have a rectangular or cylindrical orientation, and is integral to a substantially closed system wherein the volume of aqueous solution is circulated through various subprocesses, and is itself mined for solubilized components.

BATTERY AND ELECTRICAL APPARATUS

Resumen de: US20260341844A1

The battery comprises a plurality of battery cells, one end of each battery cell being provided with a first end surface in the height direction, and the first end surface being provided with an electrode terminal; and a first thermal management component, each first end surface being fixedly bonded to the first thermal management component by means of a thermally conductive structural adhesive, and the first thermal management component being provided with first openings for exposing the electrode terminals. The first end surfaces of the battery cells are fixedly bonded to the first thermal management component by means of the thermally conductive structural adhesive, so as to connect the plurality of battery cells into a whole, thereby improving the overall structural strength of the battery, effectively resisting the expansion and deformation of the battery cells, and reducing the risk of battery cell failure due to the expansion and deformation.

NEGATIVE ELECTRODE CURRENT COLLECTOR, BATTERY CELL, BATTERY, AND ELECTRIC APPARATUS

Resumen de: US20260341736A1

A negative electrode current collector includes a substrate and an alloy layer located on at least one side of the substrate, where the alloy layer includes a first metal element and a second metal element, the substrate includes a third metal element, the nucleation overpotential of the elemental form of the second metal element is less than the nucleation overpotential of the elemental form of the first metal element, the nucleation overpotential for lithium metal on the elemental form of the first metal element is greater than or equal to 0.10 V, and the nucleation overpotential of the elemental form of the second metal element is less than the nucleation overpotential of the elemental form of the third metal element.

CELL

Resumen de: US20260341930A1

A cell includes a stack in which a positive electrode current collector foil, a positive electrode active material layer, a solid electrolyte layer, a negative electrode active material layer, and a negative electrode current collector foil are stacked in a first direction, wherein an insulating tape is attached to a spare length portion of the positive electrode current collector foil or the negative electrode current collector foil, and the insulating tape is disposed to restrict the spare length portion in the first direction.

CONVEYING APPARATUS

Resumen de: US20260336947A1

A conveying apparatus includes a through-hole portion that penetrates the rotating body, an insertion member that moves a plurality of battery cells arranged in a first orientation so as to insert the plurality of battery cells into the through-hole portion, when the rotating body is in the first state, a restricting unit that restricts movement of the plurality of battery cells inserted into the through-hole portions, a rotation control unit that rotates the rotating body from the first state to the second state, to displace the plurality of battery cells from the first orientation to a second orientation rotated by the predetermined angle, and a pushing member that pushes out the plurality of battery cells in the second orientation from the through-hole portion when the rotating body is in the second state.

ELECTROLYTE STORAGE DEVICE AND METHOD OF MANUFACTURING THE SAME

Resumen de: US20260341940A1

Disclosed are an electrolyte storage device and a method of manufacturing the electrolyte storage device, and more particularly, an electrolyte storage device configured such that a fine pattern is formed inside the electrolyte storage device to increase surface hydrophobicity, thereby preventing an electrolyte from adhering to the electrolyte storage device, and a method of manufacturing the electrolyte storage device.

SOLID-STATE BATTERY CELL AND METHOD FOR MANUFACTURING SOLID-STATE BATTERY CELL

Resumen de: US20260341911A1

Provided are a solid-state battery cell capable of releasing heat generated from a positive electrode to the outside and a method for manufacturing a solid-state battery cell. A solid-state battery cell including an electrode assembly including a positive electrode, a solid electrolyte layer, and a negative electrode and an insulating layer disposed to circulate an outer circumference of the electrode assembly, in which the insulating layer contains needle-like alumina particles.

HUMANOID ROBOT BATTERY

Resumen de: US20260341867A1

A battery pack for a humanoid robot including a housing having a cavity, a plurality of cells supported in the cavity of the housing, a cell array secured to the housing and enclosing the cavity, and a cover including a mica sheet secured to the housing over the cell array. The battery pack can include a quick release lock mechanism for securing the battery pack to the humanoid robot.

Positive Electrode Active Material, Preparation Method Thereof, Positive Electrode Including the Same, and Lithium Secondary Battery

Resumen de: US20260341702A1

A positive electrode active material includes a lithium nickel-based oxide particle in a form of a single particle which is composed of one single nodule or a pseudo-single particle which is a composite of 30 or fewer nodules. A coating layer including cobalt is formed on a surface of the lithium nickel-based oxide particle. An atomic ratio of Co to Ni is 0.15 or greater when the positive electrode active material is analyzed by X-ray photoelectron spectroscopy. A standard deviation of the atomic ratio of Co to Ni is 0.80 or less when the positive electrode active material is analyzed by Auger electron spectroscopy. The positive electrode active material has a content of residual Li2CO3 of 0.50 wt % or less. Also provided is a method for preparing such a positive electrode active material and a positive electrode and a lithium secondary battery including such a positive electrode active material.

SYSTEM AND METHODS FOR DETERMINING A STATUS OF AN ELECTROCHEMICAL ENERGY STORAGE DEVICE

Resumen de: AU2025242674A1

Methods and systems for determining a status of an electrochemical energy storage device is provided. An impedance profile of an electrochemical energy storage device is determined using an Electrochemical Impedance Spectroscopy (EIS) device. The determined impedance profile is compared with a predetermined impedance profile. A status of the electrochemical energy storage device is determined based on the comparison.

Positive Electrode Active Material, Method of Manufacturing the Same, Positive Electrode Including the Same, and Lithium Secondary Battery

Resumen de: US20260341703A1

A positive electrode active material may include a lithium nickel-based oxide in the form of a single particle, which is composed of one single nodule, or in the form of a pseudo-single particle, which is a composite of 30 or fewer nodules. The lithium nickel-based oxide may include cobalt (Co) and aluminum (Al). Concentration ratios of cobalt (Co) and aluminum (Al) of the lithium nickel-based oxide may be measured by Energy Dispersive X-ray Spectroscopy (EDX).

Battery Cell, Battery Pack and Vehicle Including Same

Resumen de: US20260341925A1

A battery cell may include a battery can including a bottom member and a side wall member connected to the bottom member and extending in an axial direction, and having an opening at one end; an electrode assembly configured to be received inside the battery can through the opening; a cap configured to cover the opening a gasket interposed between the battery can and the cap; and a current collector having an electrode connection portion having at least a portion electrically connected to one end of the electrode assembly, and a can connection portion extending outward in a radial direction from the electrode connection portion toward the side wall member of the battery can, wherein at least a portion of an edge tip of the can connection portion has a chamfered shape. A battery pack or a vehicle may include the battery cell.

BATTERY MODULE COMPRISING CELL CONTROLLER CONNECTED TO BATTERY CELLS

Resumen de: US20260341818A1

A battery module includes a plurality of battery cells, a master battery management system (BMS) configured to manage the plurality of battery cells, a bus bar connecting the plurality of battery cells and electrically connected to the master BMS, and a plurality of cell controllers. The plurality of cell controllers include a first cell controller connected to the first battery cell and the second battery cell and configured to transmit a first signal including a first numeric value to the master BMS, and a second cell controller connected to the second battery cell and the third battery cell and configured to transmit a second signal including a second numeric value to the master BMS. The master BMS is configured to monitor the states of the plurality of battery cells based at least in part on the first and second signals.

Method of Preparing Solid Electrolyte and the Solid Electrolyte

Resumen de: US20260341778A1

A method of preparing a solid electrolyte includes steps of preparing a precursor mixture by mixing a sulfide-based solid electrolyte raw material and a solvent (S1) and performing a heat treatment on the precursor mixture (S2). In the method, the solvent has a relative polarity to water of 0.15 or less, and an amount of the solvent is greater than 2 wt % and less than or equal to 5 wt % based on a total amount of the precursor mixture. A solid electrolyte is also provided.

MANUFACTURING METHODS OF SULFIDE-BASED SOLID ELECTROLYTE

Resumen de: US20260341780A1

Disclosed is a manufacturing method of a sulfide-based solid electrolyte with a desired particle size by wet grinding. The present disclosure provides a manufacturing method of a sulfide-based solid electrolyte, the method comprising: a step of preparing a sulfide-based solid electrolyte material; and a micronization step of wet grinding the sulfide-based solid electrolyte material, wherein an organic solvent is used as a dispersion medium used in the wet grinding, and a ketone solvent is used as a dispersion stabilizer.

NOVEL CHELATING AND STERICALLY ENCUMBERED LIGANDS AND THEIR CORRESPONDING ORGANOMETALLIC COMPLEXES FOR DEPOSITION OF METAL-CONTAINING FILMS

Resumen de: US20260337773A1

A ligand L capable of forming a coordinated complex with at least one metal atom, the ligand having a general formula: N(R1R2)—C(R3R4)—C(R5R6)—N(R7)—CH2—C(CR8R9R10)═O. The disclosure describes use of L to form liganded metallic complexes ML with a metal M. The disclosure describes use of ML for vapor deposition processes.

NONAQUEOUS ELECTROLYTE ENERGY STORAGE DEVICE AND ENERGY STORAGE APPARATUS

Resumen de: US20260341710A1

A nonaqueous electrolyte energy storage device according to one aspect of the present invention includes: a positive electrode including a carbon-coated positive active material; a negative electrode including a negative active material; and a nonaqueous electrolyte, wherein the carbon-coated positive active material includes a positive active material containing a lithium transition metal compound having a polyanion structure, and a coating layer containing a carbon element and coating at least a part of the positive active material, wherein a ratio of a BET specific surface area of the positive active material to a BET specific surface area of the carbon-coated positive active material is 0.40 or more and 0.80 or less, and wherein the negative active material contains a carbon material.

ENERGY STORAGE CONVERTER AND ENERGY STORAGE SYSTEM

Resumen de: US20260343833A1

Energy storage converter and an energy storage system. First cavity of housing is configured to include first region and second region which are arranged along first direction, an airflow generation apparatus can generate first airflow flowing through first region and second airflow flowing through second region, and first airflow and second airflow both flow in from first side of first cavity and flow out from second side of first cavity, so that first region can be subjected to heat management by using first airflow, and second region can be subjected to heat management by using second airflow. Average heat generation of devices arranged in first region is greater than an average heat generation of devices arranged in second region, more of first airflow can flow into and flow out of first channel defined by cover by arranging cover in first region, heat management effect is improved.

UNLOADING APPARATUS AND METHOD FOR WOUND ELECTRODE ASSEMBLY

Resumen de: WO2026223431A1

The present application relates to the technical field of battery manufacturing, and provides an unloading apparatus and method for a wound electrode assembly. The unloading apparatus comprises two clamping pin assemblies. Each clamping pin assembly comprises a first clamping pin and a second clamping pin, the first clamping pin is used for clamping the outer wall of an electrode assembly, and the second clamping pin is used for clamping the inner wall of the electrode assembly. The first clamping pin and the second clamping pin of one clamping pin assembly clamp one side portion of the electrode assembly, and the first clamping pin and the second clamping pin of the other clamping pin assembly clamp the other side portion of the electrode assembly. The two clamping pin assemblies are used for stretching the electrode assembly. Each first clamping pin has a first molding surface; the shape of the first molding surface matches the shape of the outer wall surface of the electrode assembly; the first molding surface is fitted to the outer wall of the electrode assembly; the first clamping pin is provided with a flexible clamping portion; the first molding surface is a flexible surface provided on the clamping portion; the first molding surface is provided with a telescopic opening; the clamping portion is provided with a telescopic seam corresponding to the telescopic opening; and the telescopic seam runs through the telescopic opening. The present application aims to improve th

SEPARATOR FOR ELECTROCHEMICAL DEVICE AND ELECTROCHEMICAL DEVICE COMPRISING SAME

Resumen de: US20260341904A1

Disclosed is a separator for an electrochemical device, the separator including a porous polymer substrate, and a porous coating layer formed on at least one surface of the porous polymer substrate and including a first metal-organic framework particle modified with polyimide, a second metal-organic framework particle, and a polymer binder. At least one of the first metal-organic framework particle and the second metal-organic framework particle includes zirconium, and has an amine group.

FAULT DETECTION IN A BATTERY SYSTEM

Resumen de: US20260338866A1

A remote computing system is configured to communicate with a battery system including battery node controllers that selectively couple a power bus with respective battery nodes. The remote computing system receives diagnostic data from the battery system, the diagnostic data corresponding to signal data generated while the battery system operates in a charging or discharging state. The diagnostic data is associated with candidate events identified at the battery system as anomalous based on discontinuous temporal changes in the signal data, each candidate event corresponding to a respective battery node and time period. The remote computing system applies one or more machine learning models to the diagnostic data to identify a designated battery node as defective and transmits, to the battery system, an instruction to update a battery node operation profile associated with the designated battery node.

Charging Control Apparatus, Charging Control Method, and Charging Control Program

Resumen de: US20260341828A1

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.

Determination Apparatus, Determination Method, and Determination Program

Resumen de: US20260336471A1

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.

PREPARATION METHOD FOR AND USE OF SINGLE-ION CONDUCTOR COMPOSITE BINDER

Resumen de: WO2026223444A1

Disclosed herein are a preparation method for and a use of a single-ion conductor composite binder. The binder is formed by composite modification of a copolymer of butyl acrylate and lithium 2-acrylamido-2-methylpropanesulfonate with polyisobutylene. The binder is mainly characterized in that first, the binder can be fully dissolved in toluene which is a nonpolar solvent, thereby solving the problem of incompatibility between conventional binders and a sulfide electrolyte; next, a unique molecular structure design enables the binder to have both excellent bonding performance and ionic conductivity and can significantly reduce interface impedance. Butyl acrylate flexible segments provide elastic support, and a strong chemical bond is formed between a sulfonate group of the lithium 2-acrylamido-2-methylpropanesulfonate and the surface of a sulfide particle, thereby enhancing the binding force to the electrolyte. The binder of the present disclosure has a simple preparation process and controllable cost, is suitable for large-scale production, and provides an important material solution for promoting the industrialization of sulfide all-solid-state batteries.

COMPOSITE SEPARATOR, SECONDARY BATTERY, AND ELECTRIC DEVICE

Resumen de: WO2026223745A1

The present application discloses a composite separator, a secondary battery, and an electric device. The secondary battery comprises the composite separator, a positive electrode active material layer located on one side of the composite separator, and a negative electrode active material layer located on the other side of the composite separator; the composite separator comprises a polymer layer and conductive structures located on two sides of the polymer layer; each conductive structure is provided with through holes; the porosity of the composite separator is 15-30%; and the average pore diameter of the polymer layer is 100 nm to 20 μm.

LITHIUM-ION BATTERY POSITIVE ELECTRODE MATERIAL AND PREPARATION METHOD THEREFOR, AND LITHIUM-ION BATTERY

Resumen de: WO2026223420A1

Disclosed are a lithium-ion battery positive electrode material and a preparation method therefor, and a lithium-ion battery. The lithium-ion battery positive electrode material comprises a matrix and a coating layer; the matrix comprises a non-metal doping element and a metal doping element; the coating layer comprises lithium sulfate, a non-metal coating element, and a metal coating element; in the matrix, the non-metal doping element is derived from a non-metal sulfide dopant, and the metal doping element is derived from a metal sulfide dopant and/or a metal sulfate dopant; and in the lithium sulfate, sulfur is derived from the non-metal sulfide dopant, and the metal sulfide dopant and/or the metal sulfate dopant. In the present application, the lithium sulfate in the coating layer suppresses damage to a crystal structure on the material surface and generation of inactive NiO during water washing, and the doped and coated elements stabilize lattice oxygen and an oxygen framework structure, thereby improving the capacity and cycle performance of the material while ensuring the safety performance.

ITEM TRACKING SYSTEM WITH AN ELECTRONIC TRACKING LABEL

Resumen de: US20260340568A1

A tracking and monitoring system that uses “smart” tracking labels with printed label information on the top and electronics and sensors embedded in thin, flexible layers underneath. Labels may be used to track the location of items, and to monitor item parameters such as temperature, shock, weight, or tampering. Tracking labels may have communications interfaces to transmit label location and sensor data to a centralized server for monitoring and analysis; interfaces may include for example Bluetooth, Wi-Fi, cellular, or Amazon Sidewalk. Label location may be determined from an integrated GPS, by triangulation using received signals from cellular or other networks, or from the location of nearby connected devices. Labels may be battery powered and may use energy harvesting to obtain power from the environment. To conserve battery life, manufactured labels may be put into a hibernation state, and activated when they are placed on an item.

SULFIDE-BASED SOLID ELECTROLYTE, METHOD FOR PREPARING SULFIDE-BASED SOLID ELECTROLYTE AND ALL-SOLID-STATE BATTERY INCLUDING SULFIDE-BASED SOLID ELECTROLYTE

Resumen de: US20260341782A1

A sulfide-based solid electrolyte with improved ionic conductivity, a method for preparing the sulfide-based solid electrolyte and an all-solid-state battery including the sulfide-based solid electrolyte. A sulfide-based solid, wherein the sulfide-based solid electrolyte has an argyrodite-type crystal structure, wherein the sulfide-based solid electrolyte is represented by chemical formula Li7-x-3yMyPS6-xHax, wherein in the chemical formula, M is at least one element selected from the Group 13 elements, wherein the Ha comprises Br, and wherein 0

EMERGENCY STARTING POWER SUPPLY WITH CONTACT IMPEDANCE DETECTION

Resumen de: AU2024441151A1

A method and apparatus of an emergency starting power supply used to start a device or energize a battery. This emergency starting power supply automatically detects the contact impedance of the device or battery and provides prompts from a user interface to the user based on this detected contact impedance. The prompts guide the user as the user on how to adjust the impedance of the connections to the device or battery so that it is connected optimally to the device or battery so that the emergency starting power supply can provide the device or battery with enough energy to start the motor or engine.

BATTERY HEALTH EVALUATION METHOD AND EVALUATION DEVICE

Resumen de: WO2026222922A1

A battery health evaluation method and an evaluation device. The method comprises: classifying a plurality of batteries into N battery categories on the basis of voltage variations per unit time, using index data of each second battery cell in a first battery category as training data of a first prediction model, a second prediction model and a third prediction model, obtaining a first health value, a second health value and a preset health value of a first battery cell by means of the trained first prediction model, second prediction model and third prediction model, and on the basis of the health values, further obtaining a target health value of the first battery cell at a first time point in a first step, wherein the battery category of each second battery cell is the first battery category; the first step is a discharging step or a charging step; and the target health value is used for evaluating whether the first battery cell is abnormal at the first time point in the first step, in order to realize battery fault diagnosis, prediction and early warning.

BATTERY SYSTEM, BATTERY PACK EMBEDDED WITH THE SAME, AND BATTERY PACK MONITORING METHOD USING THE SAME

Resumen de: US20260341810A1

A battery system may include a battery module, a slave battery management system (BMS) including an antenna, the slave BMS being connected to the battery module, and configured to sense a state of the battery module and generate sensing information, and transmit the sensing information through the antenna as a wireless signal, and a master BMS including multiple antennas. The master BMS may be configured to receive the wireless signal through the multiple antennas as a plurality of wireless signals, adjust phases for the plurality of wireless signals and generate a plurality of first wireless signals, synthesize the plurality of first wireless signals and generate a second wireless signal, obtain the sensing information by using the second wireless signal, and control the battery module by using the obtained sensing information.

WELDING MASK FOR SECONDARY BATTERY CELL TAB, AND WELDING DEVICE AND METHOD FOR SECONDARY BATTERY CELL TAB INCLUDING SAME

Resumen de: US20260336019A1

A welding device for a secondary battery cell tab according to one embodiment of the present invention comprises: a mask for covering the surface of a busbar assembly; a fixing member fixed to the busbar assembly; a support member, which supports the mask and is coupled to the fixing member; and a laser generator for irradiating a laser beam at the busbar assembly, wherein the mask includes a mask body and a plurality of penetration parts penetrating the mask body, and a portion for forming the mask body from among the plurality of penetration parts may form an acute angle with the normal line of the penetration part.

BATTERY MANAGEMENT APPARATUS AND METHOD

Resumen de: US20260338869A1

A battery management apparatus according to an embodiment of the present disclosure includes a profile obtaining unit configured to obtain a measurement full-cell profile representing the corresponding relationship between voltage and capacity of a battery; a profile determining unit configured to divide at least one of a preset reference positive electrode profile and a reference negative electrode profile into a plurality of electrode sections, adjust the reference positive electrode profile and the reference negative electrode profile to correspond to the measurement full-cell profile while adjusting each of the plurality of electrode sections, and generate an adjustment positive electrode profile and an adjustment negative electrode profile according to the adjustment result; and a control unit configured to determine a diagnostic factor for the battery from at least one of the adjustment positive electrode profile and the adjustment negative electrode profile.

Method for Manufacturing Dry Electrode and System for Manufacturing Dry Electrode

Resumen de: US20260341737A1

A method for manufacturing a dry electrode and its manufacturing system is provided., The method for manufacturing the dry electrode of the present invention includes forming a primer layer having a predetermined width on at least one surface of a current collector; forming a dam on two widthwise sides of the primer layer to prevent an electrode powder from flowing down; feeding the electrode powder onto a surface of the primer layer; and compressing the electrode powder to form an electrode active material layer.

Positive Electrode Active Material, and Positive Electrode and Lithium Secondary Battery Including the Same

Resumen de: US20260341695A1

A positive electrode active material including: a lithium nickel-based transition metal oxide with a large particle diameter and a lithium nickel-based transition metal oxide with a small particle diameter. The lithium nickel-based transition metal oxide with a large particle diameter is in the form of a secondary particle that is an aggregate of primary particles. The lithium nickel-based transition metal oxide with a small particle diameter is in the form of a single particle formed of one nodule and/or a quasi-single particle that is a composite of 30 or less nodules. A P value, which is defined by a factor related to the shape of a large-diameter particle and a factor of the specific surface area of a small-diameter particle, is 1.00 or more. The positive electrode active material is applied to a positive electrode to provide a lithium secondary battery with at least improved lifespan and output characteristics.

Current Collector, Secondary Battery, Battery Module, Battery Pack, and Electric Apparatus

Resumen de: US20260341729A1

This application relates to a current collector, a secondary battery, a battery module, a battery pack, and an electric apparatus. A coating is formed on one side of the current collector, and the coating includes an interface protection layer. The interface protection layer is beneficial to reduce a contact area between a metal and an electrolyte solution, thereby reducing the occurrence of side reactions between the metal and the electrolyte solution, and effectively improving the coulombic efficiency and capacity retention rate after 100 cycles of the battery.

MOUNTING STRUCTURE, BATTERY APPARATUS, AND POWER CONSUMING DEVICE

Resumen de: US20260341883A1

The battery apparatus includes a battery box, and a plurality of battery cells, a box beam, and a mounting structure that are arranged in the battery box. A connecting hole is provided on the battery box. The mounting structure includes a first locking member and a second locking member. An end of the first locking member is connected to the box beam. The other end of the first locking member is pressed against an inner wall of the battery box and is disposed around the connecting hole. An end of the second locking member passes through the connecting hole and extends into the battery box to be connected to the first locking member, an assembly hole is provided on an end of the second locking member away from the first locking member, and the assembly hole is configured to be fittingly connected to a fastener of a carrier.

SECONDARY BATTERY, BATTERY ASSEMBLY AND ELECTRONIC DEVICE

Resumen de: US20260341910A1

Disclosed is a secondary battery, a battery assembly and an electronic device. The secondary battery includes a housing, an electrode assembly, and a current collector member. The electrode assembly includes a wound structure formed by stacking and winding a positive electrode sheet, a negative electrode sheet and a separator. The positive electrode sheet includes a positive electrode coated area, a positive electrode uncoated area, and an insulation layer. The positive electrode uncoated area is bent toward the winding axis to form a stacked positive electrode uncoated area. The current collector member is welded to the stacked positive electrode uncoated area. The insulation layer includes a first insulation layer facing the winding axis and a second insulation layer facing away from the winding axis. The first insulation layer and the second insulation layer extend toward the stacked positive electrode uncoated area.

Electrode Supply Apparatus and Method, and Electrode Assembly Manufacturing Apparatus and Method

Resumen de: US20260341771A1

An electrode supply apparatus having an electrode magazine for accommodating a plurality of stacked electrodes, a sensor for detecting a shape of a stacked electrode in the magazine, and an electrode picking-up part for picking up an electrode in the electrode magazine, and a position controller for changing a position of the stacked electrodes in the magazine in accordance with the detected shape is provided. A method of supplying an electrode is also provided.

POROUS CARBON-Ag COMPOSITE, NEGATIVE ELECTRODE COMPRISING THE SAME, AND LITHIUM-ION SECONDARY BATTERY COMPRISING THE NEGATIVE ELECTRODE

Resumen de: US20260337026A1

A porous carbon-Ag composite includes macro porous carbon particles and Ag particles inserted into pores of the macro porous carbon particles, a negative electrode comprising the composite, and a lithium-ion secondary battery comprising the negative electrode.

BATTERY MODULE DETECTION SYSTEM AND METHOD

Resumen de: US20260338849A1

A battery module detection system and method. The battery module detection system includes a control circuit and a detection circuit, wherein the detection circuit includes a resistance unit. The control circuit is configured to: control the transmission of a power supply voltage to the detection circuit and obtain a detection voltage fed back by the detection circuit, determine detection parameters inside a battery module on the basis of the power supply voltage, the detection voltage and the resistance value of the resistance unit, and on the basis of the detection parameters inside the battery module, determine whether an insulation abnormality is present inside the battery module.

COMPOSITE POROUS MATERIAL AND USE THEREOF, SILICON-BASED COMPOSITE MATERIAL, NEGATIVE ELECTRODE AND BATTERY

Resumen de: US20260341677A1

The present disclosure provides a composite porous material and use thereof, a silicon-based composite material, a negative electrode and a battery. The composite porous material contains composite porous material particles, and the composite porous material particles are obtained by compounding two (A and B) or more porous materials of different pore structures; distribution of the porous material A and the porous material B in the composite porous material particles is not limited; and a pore volume of the porous material A is greater than that of the porous material B.

LITHIUM-ION BATTERY AND ELECTRIC DEVICE

Resumen de: US20260341704A1

A battery cell, a battery, and an electric device are provided. The battery cell includes a positive electrode plate having an aspect ratio m satisfying 1≤m≤6 and a positive electrode active material layer having a compaction density ρ satisfying 3.3 g/cm3≤ρ≤3.7 g/cm3. A mass proportion of single-crystal particles in the positive electrode active material is no less than 50%, and a porosity of the positive electrode active material layer ranges from 23% to 33%. The use of single-crystal particles reduces particle fracture, side reactions with an electrolytic solution, and impedance growth, thereby improving conductivity, lowering direct current resistance (DCR), and enhancing performance of high energy density cells.

SECONDARY BATTERY AND POWER CONSUMING APPARATUS INCLUDING SAME

Resumen de: US20260341673A1

A negative electrode plate includes a negative electrode current collector and a negative electrode film layer formed on at least one surface of the negative electrode current collector. The negative electrode film layer has a first surface distant from the negative electrode current collector and a second surface arranged opposite to the first surface. The thickness of the negative electrode film layer is denoted as H. A region within a thickness range from the first surface to 0.3 H of the negative electrode film layer is denoted as a first region of the negative electrode film layer. A region within a thickness range from the second surface to 0.3 H of the negative electrode film layer is denoted as a second region of the negative electrode film layer. The binder content in the first region is less than the binder content in the second region.

SECONDARY BATTERY AND ELECTRIC APPARATUS CONTAINING THE SAME

Resumen de: US20260341714A1

A secondary battery includes a negative electrode sheet. The negative electrode sheet includes a negative electrode current collector and a negative electrode film layer, which is arranged on at least one surface of the current collector and includes a negative electrode active material and a conductive agent. The powder conductivity σ of the negative electrode active material is greater than or equal to 80 S/cm but less than or equal to 106 S/cm, and the compaction density of the negative electrode film layer is 1.35 g/cm3 to 1.50 g/cm3.

GRAPHITE NEGATIVE ELECTRODE ACTIVE MATERIAL AND PREPARATION METHOD THEREFOR, NEGATIVE ELECTRODE SHEET, SECONDARY BATTERY, AND ELECTRIC DEVICE

Resumen de: US20260341715A1

A particle body of the graphite negative electrode active material includes an internal region and a surface-layer region at least partially surrounding the internal region. The surface-layer region refers to a region formed by extending from a surface of the particle body of the graphite negative electrode active material to an interior of a particle by a distance of 30 nm. The mass percentage of crystalline carbon in the internal region is denoted as η1, the mass percentage of crystalline carbon in the surface-layer region is denoted as η2, and 10%≤η1−η2≤35%.

CARBON-BASED NEGATIVE ELECTRODE ACTIVE MATERIAL, PREPARATION METHOD, SECONDARY BATTERY, AND POWER CONSUMING APPARATUS

Resumen de: US20260341708A1

A carbon-based negative electrode active material, a preparation method, a secondary battery, and a power consuming apparatus are provided. A gram volume of the carbon-based negative electrode active material is 345 mAh/g to 355 mAh/g, and the powder compaction density at a pressure of 20000 N is greater than 1.55 g/cm3 and less than 1.65 g/cm3.

GRAPHITE NEGATIVE ELECTRODE ACTIVE MATERIAL AND PREPARATION METHOD THEREFOR, SECONDARY BATTERY CONTAINING SAME, AND POWER CONSUMING APPARATUS

Resumen de: US20260341716A1

A graphite negative electrode active material and a preparation method therefor, a secondary battery containing the same, and a power consuming apparatus. A volume distribution particle size Dv1 of the graphite negative electrode active material ranges from 1.5 μm to 3 μm, and the graphite negative electrode active material includes a primary particle morphology.

BATTERY DEVICE

Resumen de: US20260341832A1

Discussed is a battery device, which can include a stacked battery unit having two surfaces facing each other; two support frames provided on the two surfaces of the stacked battery unit, respectively, to partially expose the two surfaces; two thermally conductive adhesive layers respectively provided on the two surfaces of the stacked battery unit exposed by the two support frames; and two thermally conductive plates respectively provided on the two support frames and respectively fixed on the stacked battery unit through the two thermally conductive adhesive layers.

BATTERY PACK AND DEVICE INCLUDING THE SAME

Resumen de: US20260341894A1

The present disclosure includes a battery pack and a device including the same. The battery pack according to one embodiment of the present disclosure comprises at least one or more battery modules that includes a battery cell stack in which a plurality of battery cells are stacked and a module frame that houses the battery cell stack; a first pack frame on which the battery module is mounted; a second pack frame covering the battery module; and a venting part provided on one surface of the first pack frame, wherein the venting part communicates with a venting path that is formed by a plurality of partition members located on the first pack frame.

ELECTROLYTE INJECTION NOZZLE, ELECTROLYTE INJECTION APPARATUS, BATTERY CELL, BATTERY, AND ELECTRIC APPARATUS

Resumen de: US20260341935A1

An electrolyte injection nozzle, an electrolyte injection apparatus, a battery cell, a battery, and an electric apparatus are provided. This application pertains to the field of battery technologies. The electrolyte injection nozzle includes an expansion segment, where a flow area of the electrolyte injection nozzle increases in the expansion segment along a direction from an inlet end of the electrolyte injection nozzle to an outlet end of the electrolyte injection nozzle.

GRAPHITE NEGATIVE ELECTRODE ACTIVE MATERIAL AND PREPARATION METHOD THEREFOR, SECONDARY BATTERY CONTAINING SAME, AND POWER CONSUMING APPARATUS

Resumen de: US20260341713A1

Provided are a graphite negative electrode active material and a preparation method therefor, a secondary battery containing the same, and a power consuming apparatus. A powder compaction density of the graphite negative electrode active material under a pressure of 49000 N is greater than or equal to 1.60 g/cm3, and a ratio Id/Ig of a peak intensity Id at 1250 cm−1 to 1500 cm−1 and a peak intensity Ig at 1500 cm−1 to 1650 cm−1 in a Raman spectrum of the graphite negative electrode active material is greater than or equal to 0.15.

GRAPHITE NEGATIVE ELECTRODE ACTIVE MATERIAL AND PREPARATION METHOD THEREFOR, SECONDARY BATTERY AND ELECTRICAL DEVICE

Resumen de: US20260341709A1

A graphite negative electrode active material and a preparation method therefor, a secondary battery, and an electrical device. A degree of graphitization of the graphite negative electrode active material is 88%-93%, and an oil absorption value of the graphite negative electrode active material is not more than 50 ml/100 g.

SEPARATOR, SECONDARY BATTERY COMPRISING THE SAME AND METHOD FOR MANUFACTURING THE SECONDARY BATTERY

Resumen de: US20260341902A1

Disclosed is a separator, a secondary battery including the same and a method for manufacturing the same. The separator has a porous coating layer including two types of binder polymers in different regions of the porous coating layer. The binder polymers dissolve in an electrolyte solution at different temperatures, to form lithium ion paths in the separator, thereby achieving high ionic conductivity and meeting resistance and stability requirements for the secondary battery.

BATTERY DIAGNOSTIC DEVICE AND METHOD

Resumen de: US20260338870A1

The present disclosure relates to a battery diagnostic device and method. In some embodiments, the battery diagnostic device may include: a measurement unit which measures cell impedances of a plurality of battery cells, a fixed impedance of at least one component, and a first module impedance of a battery module; and a control unit which determines an assembly state of the battery module based on the cell impedance, the fixed impedance, and the first module impedance.

BATTERY AND ELECTRIC APPARATUS

Resumen de: US20260341887A1

A battery includes: a first battery cell and a second battery cell which are adjacent to each other, a functional component, and filling components and/or a first isolating component. The functional component is arranged in a gap formed by a first surface of the first battery cell and a second surface of the second battery cell. The filling components fill edges of the gap. The first isolating component is tightly attached to an edge of a third surface of the first battery cell and an edge of a fourth surface of the second battery cell, and covers the gap formed by the first surface and the second surface. The third surface intersects with the first surface, and the fourth surface intersects with the second surface.

PRODUCTION METHOD OF POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM-ION SECONDARY BATTERY

Resumen de: US20260341696A1

A production method of a positive electrode active material for a lithium-ion secondary battery includes mixing a nickel-containing material containing at least nickel, and a lithium compound, thereby preparing a first raw material mixture; firing the first raw material mixture in an oxidative atmosphere, thereby obtaining a fired product; washing the fired product obtained in the firing with water, thereby obtaining water-washed powder; mixing the water-washed powder obtained in the washing, and a boron-containing material, thereby preparing a second raw material mixture, the boron-containing material being at least one selected from a boron simple substance and a boron-containing compound; thermally treating the second raw material mixture; and performing, after the thermally treating, cooling with an atmosphere at least in a temperature range equal to or lower than a boundary temperature being a decarbonated atmosphere.

LFP BATTERY RECYCLING PLANT AND PROCESS

Resumen de: US20260337718A1

Disclosed herein are a plant for recycling used batteries, in particular lithium iron phosphate (LFP) batteries, and a process for recovering valuable materials from used batteries.

POSITIVE ELECTRODE FOR SECONDARY BATTERY, LITHIUM SECONDARY BATTERY COMPRISING THE SAME AND METHOD OF MANUFACTURING THE SAME

Resumen de: US20260341682A1

A positive electrode for a secondary battery, a lithium secondary battery comprising the same and a method of manufacturing the same are described. The positive electrode may include: a first positive electrode layer and a second positive electrode layer, wherein the first positive electrode layer comprises a first positive electrode active material comprising a first active material particles having a primary particle form, and the second positive electrode layer comprises a second positive electrode active material comprising a second active material particles having a secondary particle form, wherein the secondary particle form comprises agglomerated primary particles.

Lithium Secondary Battery

Resumen de: US20260341789A1

A lithium secondary battery includes a battery case, and an electrode assembly and an electrolyte accommodated in the battery case. The electrode assembly includes a positive electrode, the positive electrode includes a positive electrode active material and a conductive agent. The conductive agent includes a point-type conductive agent and a linear conductive agent at a weight ratio ranging from 4:1 to 14:1. The electrolyte includes, as additives, a sultone-based compound and a phosphate-based compound at a weight ratio ranging from 1:0.1 to less than 1:2.

METHOD FOR PREPARATION OF SECONDARY BATTERY ELECTRODE SLURRY

Resumen de: US20260341794A1

According to the present disclosure, there is provided a method for preparing an electrode slurry for a secondary battery, the method including a step a) of feeding raw materials including an electrode active material, a conductive agent, and a thickener into a mixer; and a step b) of feeding a solvent into the mixer and kneading the raw materials, wherein the thickener in the step a) is in a solid state.

SLITTING METHOD AND HARDWARE FOR COATED FLEXIBLE SUBSTRATES

Resumen de: US20260336017A1

A method and system for slitting a lithium-coated polyethylene terephthalate (PET) roll is provided. The roll undergoes laser ablation to remove a portion of a layer of lithium where a slit is desired exposing the PET substrate underneath. The roll then undergoes a blade cutting process wherein the roll is cut along exposed PET substrate, producing a plurality of slit rolls. The laser ablation of the roll prior to blade cutting allows lithium to be removed, preventing lithium build-up on the blade. This reduces maintenance time, improves the quality of the slit roll edges, and allows for longer lengths of rolls to be cut. The laser ablation also allows for rolls with thick layers of lithium to be blade cut.

STORAGE DEVICE

Resumen de: US20260338493A1

A storage device includes several storage modules (2) which are stacked onto one another. The storage modules (2) each have at least one storage container (10) and each have at least one heat transfer medium channel (22) which is adjacent to an outer wall of the storage container (10). The heat transfer medium channels (22) of the several storage modules (2) are connected to one another via at least one heat transfer medium connection conduit.

GRAPHITE MATERIAL AND PREPARATION METHOD THEREFOR, NEGATIVE ELECTRODE PLATE CONTAINING SAME, BATTERY, AND POWER CONSUMING APPARATUS

Resumen de: US20260337030A1

Provided are a graphite material and a preparation method therefor, a negative electrode plate containing the same, a battery, and a power consuming apparatus. The graphite material satisfies (Lc100% SOC−Lc0% SOC)/Lc50% SOC≤0.0750 and Lc0% SOC being less than or equal to 50 nm.

Electrode Dryness Inspecting Device, Electrode Dryness Inspecting Method, and Method for Manufacturing Electrode and Secondary Battery

Resumen de: US20260338679A1

A device for inspecting the dryness of an electrode may include a transport unit that transports the electrode to an electrode drying zone. The device may also include an irradiation unit including a collimating lens fixed in a range of 10 to 20 degrees relative to a direction perpendicular to a transport direction of the electrode at an upper part separated from the electrode. The irradiation unit may also include an optical fiber that irradiates a light source through the collimating lens. The device may also include a measurement unit including a spectrometer and a light source both connected to the irradiation unit. The measurement unit may also include a spectrometer hub connected to the spectrometer. The device may also include a control unit including a display device connected to the spectrometer hub.

BATTERY CELL, BATTERY, AND ELECTRIC DEVICE

Resumen de: US20260341862A1

A battery cell includes a housing, an electrode terminal, and a fixing member. The housing includes a first wall provided with a first through hole. The electrode terminal includes a main body and a step portion, where at least a portion of the main body passes through the first through hole, the step portion protrudes from a peripheral surface of the main body, and the step portion is located on an outer side of the first wall. . The fixing member is provided with a second through hole for the main body to pass through. In a thickness direction of the first wall, at least a portion of the fixing member is located between the first wall and the step portion. In the thickness direction of the first wall, the main body has a first end surface facing away from an interior of the housing.

BATTERY PACK AND ENERGY STORAGE SYSTEM INCLUDING THE SAME

Resumen de: US20260341879A1

A battery pack may include at least one cell assembly including a plurality of battery cells; an enclosure that accommodates the at least one cell assembly and having an insertion portion provided in a form where an outer surface thereof is recessed in an inward direction along a longitudinal direction of the enclosure; and a reinforcing member inserted into the insertion portion, the reinforcing member being rod-shaped.

POSITIVE ELECTRODE FOR NONAQUEOUS ELECTROLYTE ENERGY STORAGE DEVICE AND NONAQUEOUS ELECTROLYTE ENERGY STORAGE DEVICE

Resumen de: US20260341735A1

A positive electrode for a nonaqueous electrolyte energy storage device according to one aspect of the present invention includes a positive electrode substrate containing metallic aluminum, and a positive active material layer stacked on the positive electrode substrate. An elongation at break of the positive electrode substrate is 3.8% or less. The average thickness of the positive active material layer is 35 μm or less. A 180° peel strength between the positive active material layer and the positive electrode substrate is 0.6 N/mm or more.

METHOD AND SYSTEM FOR DETERMINING REUSABILITY OF A BATTERY

Resumen de: US20260338871A1

A method of determining reusability of a battery includes conducting one or more safety diagnostic tests on the battery. The method includes measuring an open circuit voltage for each of a plurality of cells in the battery to determine a state of charge of the battery and performing an electrochemical dynamic response test on the battery to derive impedance and lithium transport parameters for each of the cells. The derived impedance and lithium transport parameters are analysed to identify one or more outlier cells in the battery and conducting one or more AC tests on the identified outlier cells to predict a degradation pathway for the cells over the lifetime of the battery. The method includes designating the outlier cells for reuse in a second application or for recycling based on the predicted degradation pathway. The disclosed method is efficient, accurate, and flexible for deter-mining reusability of battery.

HEAT SINK ASSEMBLY

Resumen de: US20260338499A1

A heat sink assembly including a heat sink having a plurality of ribs extending along a longitudinal direction of the heat sink, a plurality of spaces located between the plurality ribs form a plurality of flow paths, an open first surface and an open second surface at opposite longitudinal ends of the heat sink, a first end plug including an inner end plug configured to close a portion of the first surface, the inner end plug includes a cut-out flow path formed along a width direction of the heat sink, the cut-out flow path having an open surface parallel with the first surface, and an outer end plug configured to close the open surface of the cut-out flow path and the remaining portion of the first surface not closed by the inner end plug, and a second end plug configured to close the second surface.

METHOD FOR MANUFACTURING HIGH CAPACITY THICK FILM ELECTRODE FOR BATTERY, ELECTRODE MANUFACTURED BY THE METHOD, AND BATTERY HAVING THE ELECTRODE

Resumen de: US20260341671A1

In a method for manufacturing a high capacity thick film electrode for a battery, an electrode manufactured by the method, and a battery having the electrode, the method includes mixing a slurry having an active material, a binder, a conductive material and a solvent, heating and homogenizing the slurry, forming a conductive fiber base having a conductive fiber, coating the slurry on the conductive fiber base by a predetermined thickness, and cooling and thermally induced phase separating (TIPS) the coated slurry.

LITHIUM GARNET AND METHODS OF MAKING THE SAME

Resumen de: US20260337049A1

Methods of making lithium garnet include combining a lithium source, a lanthanum source, a zirconium source, an optional dopant, and an optional lithium garnet seed crystal to form a precursor mixture. Methods include mixing the precursor mixture with a solvent to form a slurry. Methods include drying the slurry to form a solid precursor. Methods include calcining the solid precursor at a calcining temperature from about 900 °C to about 1200 °C for a period of time from about 2 minutes to about 40 minutes to form the lithium garnet. The lithium garnet can be formed into sintered sheets for use, for example, as electrodes or solid-state electrolytes.

SYSTEM FOR CUTTING LITHIUM METAL FOR NEGATIVE ELECTRODES

Resumen de: US20260336147A1

The present invention relates to a lithium metal cutting system for negative electrodes, comprising a lithium metal feeding portion for supplying lithium metal, a lithium metal transport portion for transporting lithium metal provided from the lithium metal feeding portion, and a lithium metal cutting portion for cutting lithium metal transported by the lithium metal transport portion, wherein the lithium metal transport portion includes a plurality of rollers and a refrigerant tube disposed in each of the plurality of rollers.

COMPOSITE SOLID ELECTROLYTE AND METHOD FOR PREPARING THE SAME

Resumen de: US20260341777A1

A composite solid electrolyte and a method for preparing the same are described. The composite solid electrolyte comprises: a polymer containing a polyethylene oxide-based copolymer containing crosslinkable functional groups; a ceramic compound; and a polar compound, wherein at least a part of the crosslinkable functional groups form a crosslinking bond with each other, so that the polymer forms a three-dimensional network structure, and wherein the polar compound in a gaseous state is contained in the three-dimensional network structure or is bonded on the polymer chains.

BATTERY SWAPPING STATION AND OPERATING METHOD THEREOF

Resumen de: US20260342115A1

Discussed is a battery swapping station that can include N slots into each of which a battery pack is insertable, an electrode plate electrically connected to the battery pack inserted into each of M slots being less than the N slots, wherein N and M are numerals, and a power supply configured to charge the battery pack provided in each of the M slots through the electrode plate, in which center points of the N slots, when viewed in a first direction, are spaced apart from a first point of the electrode plate at equal intervals, wherein the electrode plate is rotatable about the first direction as an axis, and wherein the electrode plate is electrically connected to the battery pack inserted into each of the M slots among the N slots due to a rotation of the electrode plate about the first direction.

BATTERY UNIT FOR A VEHICLE

Resumen de: US20260336375A1

The present disclosure relates to a battery unit for a vehicle. The battery unit comprises a battery tray made of a composite material and defining an interior space configured to receive a battery comprising one or more battery cells. Further, the interior space is delimited by a bottom wall and one or more lateral walls. Additionally, the battery unit comprises a top cover configured to close the battery tray, wherein a cooling system for cooling the battery is integrated. The present disclosure further relates to battery systems and vehicles including one or more battery units.

BATTERY CELL CAPABLE OF PREVENTING HEAT PROPAGATION

Resumen de: US20260341845A1

The present disclosure provides a battery cell and a structure of a battery module including the same, the battery cell including: an electrode assembly including a stack of a plurality of electrodes with a separator therebetween; an electrode tab extending from each of the plurality of electrodes and protruding from the electrode assembly; a sealed pouch accommodating the electrode assembly; and an electrode lead electrically connected to the electrode tab and protruding from the sealed pouch, wherein the electrode assembly is a plurality of electrode assemblies; and is stacked with a first insulation pad in a thickness direction.

BATTERY CELL, BATTERY AND ELECTRICAL DEVICE

Resumen de: US20260341900A1

A battery cell, a battery, and an electric device. The battery cell includes a housing and an exhaust assembly. The housing has a wall portion and an accommodating cavity. The exhaust assembly is disposed on the wall portion, and the exhaust assembly configured to discharge a gas inside the housing. The battery cell further includes an electrolyte. The electrolyte is filled in the accommodating cavity. A conductivity of the electrolyte satisfies: 2 ms/cm ≤ conductivity ≤ 16 ms/cm. An exhaust rate of the exhaust assembly satisfies: 0.6 mL/day ≤ exhaust rate ≤ 10.0 mL/day.

BATTERIES WITH NON-RECTANGULAR SHAPES FOR AUGMENTED REALITY DEVICES, AND SYSTEMS AND METHODS OF USE THEREOF

Resumen de: US20260341775A1

An example augmented-reality headset comprises a frame portion, a temple arm portion coupled with the frame portion, and a metal-encased battery cell having an exterior surface that defines a non-rectangular shape. The metal-encased battery cell is configured to be housed within the temple arm portion, and the non-rectangular shape of the exterior surface follows an interior shape of an internal surface of the temple arm portion. The augmented-reality headset also comprises one or more artificial-reality processing or presentation devices, wherein at least one of the one or more artificial-reality processing or presentation devices is configured to receive power from the metal-encased battery cell.

AEROSOL GENERATING DEVICE

Resumen de: US20260334581A1

An aerosol generating device according to an embodiment includes a body that includes an article accommodating unit for accommodating an aerosol generating article and forms an exterior thereof; a heater for heating the aerosol generating article accommodated in the article accommodating unit; a battery coupling unit arranged in one area inside the body; and a battery detachably coupled to the battery coupling unit, wherein the battery includes a first electrode and a second electrode having an opposite polarity to that of the first electrode, and the first electrode and the second electrode are disposed on a same first surface of the battery.

ELECTRODE PLATE, CELL AND BATTERY MODULE

Resumen de: US20260341923A1

An electrode plate, a cell and a battery module are provided. The electrode plate includes an electrode plate body and N tabs. The electrode plate body has a length direction and a width direction which are perpendicular to each other. The N tabs are arranged at intervals in the length direction of the electrode plate body, the bottom edge widths of the N tabs gradually decrease and then increase along the length direction of the electrode plate body, and the N tabs overlap after the electrode plate body is wound. N is a positive integer greater than or equal to 3.

AEROSOL-GENERATING DEVICE AND OPERATION METHOD THEREOF

Resumen de: US20260334591A1

An aerosol generating device includes a housing including a battery accommodation space, a heater located inside the housing and configured to heat an aerosol generating material, a battery detachably coupled to the battery accommodation space and configured to supply power to the heater, a printed circuit board disposed inside the housing and spaced apart from the battery accommodation space, and a battery protection circuit disposed on the printed circuit board and electrically connected to the battery when the battery is coupled to the battery accommodation space to control charging or discharging of the battery.

AEROSOL-GENERATING DEVICE

Resumen de: US20260334542A1

An aerosol-generating device includes a battery pack including a battery supplying power for an operation of the aerosol-generating device and a battery terminal electrically connected to the battery, an aerosol-generating device main body including a battery accommodation portion accommodating the battery pack and a main body terminal electrically connected to the battery terminal, and to which the battery pack is separably coupled, and a connector electrically connecting the battery terminal to the main body terminal.

Secondary Battery, Method for Manufacturing the Same, and Pressing Apparatus Used for the Method

Resumen de: US20260341863A1

A method for manufacturing a secondary battery that includes an electrode assembly and a battery case provided to accommodate the electrode assembly and having a sealed edge is provided. The method may include folding the edge, attaching an adhesive member to the folded edge, and pressing at least a partial area of a non-attachment area, to which the adhesive member is not attached, of the folded edge.

Method And Circuit Arrangement For Monitoring A Battery Cell

Resumen de: US20260338874A1

An example method includes: receiving a cell voltage with a circuit having a main monitoring channel and a redundant channel; using a first ADC to provide a first output signal and the second ADC to provide a second output signal; determining a comparison signal; if the first output signal is below a specified first voltage value and exceeds a specified second voltage value, comparing the comparison signal to a specified first trigger threshold and, if the comparison signal exceeds the first trigger, providing a first error; and, if the first output signal is equal to or greater than the specified first value or equal to or less than the second specified value, comparing the comparison signal to a second trigger and, if greater, providing a second error signal. The first voltage value is greater than the second and the first trigger threshold has a greater magnitude than the second.

ANODE ACTIVE MATERIAL FOR SECONDARY BATTERIES AND SECONDARY BATTERY INCLUDING SAME

Resumen de: US20260341728A1

An anode active material for a lithium secondary battery according to exemplary embodiments includes a core particle; a crown ether coating formed on the core particle and including crown ether; and conductive particles formed on the crown ether coating or within the crown ether coating. Accordingly, the crown ether coating including the crown ether compound may improve stability and reduce resistance, while the conductive particles may enhance output characteristics.

ELECTRIC DEVICE

Resumen de: US20260338359A1

To improve convenience. In a flashlight 10, a hanging hook 70 is connected to a flashlight body 20 so as to be rotatable (movable) between a storage position and a hooking position. In the hooking position, since side hook sections 72L and 72R protrude so as not to substantially overlap with the flashlight body 20 and a battery pack 80, the hanging hook 70 is able to be stably hooked on a single pipe P. On the other hand, in the storage position, since the side hook sections 72L and 72R are stored so as to substantially overlap with the flashlight body 20, the hanging hook 70 is able to be compactly stored. Also, a center hook section 74 is able to stabilize the relative position of the side hook sections 72L and 72R in the hooking position. Furthermore, since the center hook section 74 does not overlap with at least the battery pack 80 in the storage position, attachment and detachment of the battery pack 80 is enabled.

CURRENT COLLECTOR AND BATTERY

Resumen de: US20260341918A1

A current collector and a battery are provided. The current collector includes a pole post connecting portion, a main body portion and a folded portion. The pole post connecting portion is connected to a pole post. One end of the main body portion is connected to the pole post connecting portion, another end of the main body portion away from the pole post connecting portion is bent to form the folded portion. A tab of a cell pack is welded to one of the folded portion or the main body portion.

POUROUS CARBON-BASED MATERIAL FOR LEAD-ACID BATTERY

Resumen de: US20260341805A1

Disclosed herein is a lead-acid battery exhibiting high lifespan and electrochemical performance. The lead-acid battery includes a negative electrode and a positive electrode, each including two or more plates covered by a battery paste containing a porous carbon-based material in an amount ranging from about 0.1 wt % to about 1.0 wt %. The porous carbon-based material includes a plurality of porous carbon-based sheets, a plurality of at least one metal ion, and a plurality of at least one heteroatom. The plurality of the at least one metal ion are dispersed between the plurality of porous carbon-based sheets such that the plurality of porous carbon-based sheets are cross-linked via the plurality of the at least one metal ion. The porous carbon-based sheets are further doped with the one or more heteroatoms.

DEVICE INCLUDING BATTERY PACK

Resumen de: US20260341869A1

A device of the present disclosure according to an embodiment includes: a battery pack including a lower frame in which a battery module is accommodated and an upper cover for covering the lower frame; a device housing positioned on the battery pack; and a smoke control boundary wall disposed between the battery pack and the device housing.

POSITIVE ELECTRODE FOR ALL-SOLID-STATE BATTERY AND ALL-SOLID-STATE BATTERY COMPRISING SAME

Resumen de: US20260341803A1

One aspect of the present disclosure relates to a positive electrode for all-solid-state battery and an all-solid-state battery comprising same. More specifically, the positive electrode active material layer according to aspects of the present disclosure comprises a positive electrode active material, a sulfide-based solid electrolyte, a conductive material, and a porous carbon additive, wherein the particle diameter (D50) of the porous carbon additive is between the particle diameter (D50) of the positive electrode active material and the particle diameter (D50) of the sulfide-based solid electrolyte.

ELECTRIC SNOWMOBILE WITH BATTERY PACK INSULATING COVER

Resumen de: US20260336753A1

Anelectric snowmobile has: a frame having a tunnel; a seat connected to the tunnel; at least one ski operatively connected to the frame; a handlebar operatively connected to the at least one ski; a drive track disposed at least in part under the tunnel; an electric motor supported by the frame, the electric motor being operatively connected to the drive track; and a battery pack electrically connected to the electric motor. The battery pack has: a housing connected to the frame; and a plurality of battery cells housed in the housing. The electric snowmobile also has: an insulating cover disposed around the housing to thermally insulate the battery pack; and fairings connected to the frame, the insulating cover being disposed between the fairings and the housing.WO

SOLID ELECTROLYTE, SOLID ELECTROLYTE LAYER, AND SOLID ELECTROLYTE BATTERY

Resumen de: US20260341781A1

A solid electrolyte contains a compound represented by a formula (1), and in a Raman spectrum, a peak portion width at an intensity that is half an intensity of a strongest peak PA within a range of 200 to 450 cm−1 is 55 cm−1 or more, and a peak portion width at an intensity that is half an intensity of a strongest peak PB within a range of 80 to 200 cm−1 is 55 cm−1 or more. LiaAbEcJeXfHh (1) (A is at least one element selected from alkali metals other than Li and alkaline earth metals, E is at least one element selected from the group including Al, Ga, In, Sc, Y, Ti, Zr, Hf, and lanthanoids, J is at least one group selected from the group including anions, and X is at least one element selected from the group including F, Cl, Br, and I.)

Battery Management System, Battery Management Method, and Battery Pack Including the System

Resumen de: US20260341808A1

The present invention relates to a system and method for managing a battery pack by accurately measuring characteristics of battery cells included in a battery module. The battery pack according to an embodiment of the present invention may include: a battery module including a plurality of battery cells; at least one reference cell including three or more electrodes; a battery management system configured to control each of the plurality of battery cells and the reference cell, measures a first voltage of each of the plurality of battery cells, measures a second voltage of the reference cell, and determines a state of the battery module based on a deviation between the first voltage and the second voltage.

COATING DIE HEALTH INSPECTION METHOD, APPARATUS AND SYSTEM, AND STORAGE MEDIUM

Resumen de: US20260335926A1

A coating die health inspection method is provided. The method includes: step S101. obtaining, based on first distance data between a first position of a coating die and a back roller, and second distance data between a second position of the coating die and the back roller, a first parameter representing a wear amount of the coating die, and a second parameter representing a parallelism between the coating die and the back roller; and step S102. determining a health degree of the coating die based on the first parameter and the second parameter, to implement real-time inspection of the health degree of the coating die at a high inspection efficiency. A coating die health inspection apparatus and system, an electronic device, and a computer-readable storage medium are further provided.

CHARGING CONTROL METHOD AND ELECTRONIC DEVICE

Resumen de: US20260342106A1

The present disclosure discloses an electronic device including a first body, a second body, a charging interface and a power manager. The first body includes at least one first charging apparatus and a first battery. The second body includes at least one second charging apparatus and a second battery. The first body and the second body are movable relative to each other, and the at least one first charging apparatus and the at least one second charging apparatus include charging apparatuses of a same type. The charging interface is configured to obtain power supplied by an external charging device. The power manager is configured to determine, from the at least one first charging apparatus and the at least one second charging apparatus based on parameter information of a virtual power apparatus, according to a target charging strategy, a target charging apparatus to charge the first battery and the second battery.

BATTERY CELL

Resumen de: US20260341831A1

A battery cell having a cell housing and a cell terminal, preferably an external contact element. At least one heat conductor is arranged between the cell terminal, preferably the external contact element, and the cell housing. The external contact element is connected to the cell housing in a thermally conductive manner, and preferably in an electrically insulating manner, via the heat conductor.

BATTERY CELL, BATTERY, AND ELECTRIC DEVICE

Resumen de: US20260341865A1

A battery cell includes a shell, a first insulating member, and a second insulating member. The shell is provided with a first wall. The first insulating member wraps an outer side of the shell. At least a part of the second insulating member is located between the first wall and the first insulating member and covers at least a part of an outer surface of the first wall. The first insulating member wraps the shell, the first wall is a part of the shell, and the first insulating member can provide insulating protection for the first wall of the shell; and the second insulating member covers at least a part of the outer surface of the first wall, and the second insulating member can provide insulating protection for at least a part of the first wall.

Electrode Lead Welding Method

Resumen de: US20260336028A1

A method for welding electrode leads of a cell assembly including a plurality of cells, includes preparing a cell stack with a plurality of stacked cells from which electrode leads are drawn out; preparing a busbar frame provided with a lead connection part including a pair of lead slits spaced apart at a predetermined distance; coupling a cell stack and a busbar frame such that electrode leads of the cell stack are inserted through the lead slits; bending the electrode leads penetrating through the lead slits of the lead connection part so that the electrode leads overlap towards each other; welding the pair of overlapped electrode leads; and inserting a welding protection bar into an insertion groove to be spaced apart from a rear surface of the electrode lead prior to the welding step. The lead connection part includes the insertion groove between the pair of lead slits.

SECONDARY BATTERY ROLL MAP SYSTEM

Resumen de: US20260336961A1

A secondary battery roll map system according to example embodiments includes a first controller configured to collect coordinate data, and a processor configured to collect measurement data of an electrode sheet, in which the processor is configured to relate the coordinate data with the measurement data to generate coordinate-related measurement data.

BATTERY CELL ASSEMBLY

Resumen de: US20260341917A1

Provided is a battery cell assembly according to example embodiments. The battery cell assembly includes a cell stack, first and second bus bar frames coupled to the cell stack, a first integrated circuit on the first bus bar frame, a second integrated circuit on the second bus bar frame, and a lead cover assembly coupled to the first bus bar frame, in which the lead cover assembly includes a lead cover frame coupled to the first bus bar frame and a third integrated circuit on the lead cover frame.

POROUS INSULATING LAYER-APPLIED MATERIAL FOR ADHERING ELECTROCHEMICAL ELEMENT MEMBER, STACK, ELECTRODE, ELECTROCHEMICAL ELEMENT, METHOD OF PRODUCING STACK, METHOD OF PRODUCING ELECTRODE, AND METHOD OF ELECTROCHEMICAL ELEMENT

Resumen de: US20260341907A1

A porous insulating layer-applied material includes a base material; and an adhesive porous insulating layer on the base material; where the adhesive porous insulating layer is a porous structure having an co-continuous structure including a resin as a backbone; the resin is a cross-linked resin; and the adhesive porous insulating layer gives a peel strength of 2 N/m or more in a peel measuring method with use of a peel strength measuring element derived by preparing the base material as one of two base materials each having a size of 30 mm×100 mm, disposing the adhesive porous insulating layer through one entire face of each of the two base materials to provide adhesive porous insulating layers, placing the adhesive porous insulating layers to face each other, and performing thermal adhesion under conditions at a temperature of 140 °C and an air cylinder thrust of 500 N for 1 minute.

GEL-LIKE ELECTROLYTE, CURABLE COMPOSITION AND POWER-STORAGE DEVICE

Resumen de: US20260341785A1

The present invention provides a gel-like electrolyte which is excellent in shape stability and exhibits high ionic conductivity at room temperature. The present invention further provides a curable composition which is excellent in storage stability and is used for producing the gel-like electrolyte. A gel-like electrolyte including: a (meth)acrylic polymer (hereinafter, referred to as “component (A)”) having a structural unit derived from a (meth)acrylic monomer containing a compound having two or more (meth)acryloyl groups; an alkali metal salt (hereinafter, referred to as “component (B)”); and a nonaqueous organic solvent (hereinafter, referred to as “component (C)”), in which a content ratio of the components (A) to (C) with respect to 100 mass % of a total of the components (A) to (C) is 10 to 30 mass % for the component (A), 5 to 40 mass % for the component (B), and 40 to 80 mass % for the component (C).

NEGATIVE ELECTRODE FOR ALKALINE SECONDARY BATTERIES, ALKALINE SECONDARY BATTERY, AND METHOD FOR PRODUCING NEGATIVE ELECTRODE FOR ALKALINE SECONDARY BATTERIES

Resumen de: US20260341676A1

This negative electrode for alkaline secondary batteries comprises a negative electrode current collector and a negative electrode mixture that is supported by the negative electrode current collector. The negative electrode mixture contains a hydrogen storage alloy that has an Fe content of 200 to 900 ppm by mass, and a carbon black that has an Fe content of 1,000 to 2,800 ppm by mass.

A METHOD FOR RECYCLING OF LITHIUM-ION BATTERIES AND CELLS

Resumen de: US20260341823A1

The invention relates to a method for recycling of lithium-ion cells and batteries, comprising the following steps: a) grinding lithium-ion cells and/or batteries in a grinding device sprayed with an organic solvent and in an inert gas protective atmosphere to form a heterogeneous mixture comprising ground lithium-ion cells and/or batteries and the organic solvent;b) mechanically stirring the heterogeneous mixture obtained in step a) to form a suspension comprising a coarse fraction, black mass and the organic solvent in which the electrolyte from the lithium-ion cells and/or batteries and binders are dissolved;c) separating the suspension obtained in step b) into the coarse fraction and a suspension of the black mass in the organic solvent in which the electrolyte from the lithium-ion cells and/or batteries and the binders are dissolved; andd) separating the suspension obtained in step c) into the black mass and the organic solvent in which the electrolyte from the lithium-ion cells and/or batteries and the binders are dissolved.

BATTERY CELL AND MANUFACTURING METHOD THEREOF, BATTERY, AND ELECTRIC APPARATUS

Resumen de: US20260341853A1

A battery cell includes an electrode assembly and an outer package. The electrode assembly includes a positive electrode plate, the positive electrode plate is provided with a positive electrode active material layer, and the positive electrode active material layer includes a transition metal oxide. The outer package is configured to package the electrode assembly, the outer package is provided with a venting means, and the venting means includes a gas-permeable film. With the venting means installed on the outer package of the battery cell, excess gas generated during use of the battery cell due to the instability of the transition metal is promptly discharged to the outside of the battery cell through the gas-permeable film of the venting means so that the an explosion-proof valve of the battery cell is less likely not prone to experience abnormal valve opening caused by excessive internal pressure.

DRY ION EXCHANGE MEMBRANE PRODUCTION METHOD

Resumen de: US20260341786A1

To provide a method for producing a dry ion exchange membrane with which a water electrolyzer with suppressed leakage can be produced. The dry ion exchange membrane production method of the present invention comprises drying a wet ion exchange membrane that contains a fluorinated polymer having ion exchange groups wetted with a liquid medium to remove the liquid medium thereby to obtain a dry ion exchange membrane; wherein the drying of the wet ion exchange membrane is initiated from a state where the amount of the liquid medium attached to the surface of the wet ion exchange membrane is 40 g/m2 or more and 600 g/m2 or less.

BATTERY CELL, BATTERY, AND ELECTRIC DEVICE

Resumen de: US20260341888A1

A battery cell, a battery, and an electric device. The battery cell includes a housing and a one-way valve. The housing has a wall portion. The one-way valve includes a valve body and a valve core. The valve body is arranged on an outer surface of the wall portion, and at least part of the valve body protrudes from the outer surface of the wall portion. The valve body has a valve cavity inside. The valve core is arranged in the valve cavity; the valve core is used to seal an air inlet of the valve cavity, and the valve core is configured to open the air inlet under the action of gas inside the housing and release gas inside the battery cell.

BATTERY CELL, BATTERY, AND ELECTRICAL DEVICE

Resumen de: US20260341889A1

A battery cell, a battery, and an electrical device. The battery cell includes a housing and an exhaust assembly. The housing has a wall portion, and the exhaust assembly is arranged on the wall portion. The exhaust assembly includes a one-way valve and a gas-permeable film assembly, and the exhaust assembly is configured to discharge gas from inside the housing.

DEFECT DETECTION METHOD AND SYSTEM

Resumen de: US20260340806A1

The present application involves: obtaining battery cell images acquired from multiple angles, the battery cell images including a tab portion of a battery cell; performing, by a target detection model, tab defect detection on the battery cell images acquired from multiple angles to obtain a tab detection result, the target detection model being configured to perform tab positioning and tab defect identification; and completing defect detection based on the tab detection result. By using a target detection model to perform tab defect detection on battery cell images acquired from multiple angles, a defect in a tab portion is accurately detected.

FUEL CELL SYSTEM

Resumen de: US20260341848A1

This fuel cell system includes: an FC; a motor; a first power line that connects the FC and the motor; a battery; a second power line that connects the battery and the first power line; a variable resistor that is provided to the first power line and is configured so as to be able to change the resistance value; and an ECU that controls the resistance value of the variable resistor so that the current value of the FC is in an allowable current use range.

A process for producing carbon impurity reduced/carbon impurity free lithium sulfide, said carbon impurity reduced/carbon impurity free lithium sulfide, and its use for producing solid-state electrolytes and solid-state batteries

Resumen de: US20260337024A1

The invention relates to a process for the production of lithium sulfide reduced in carbon impurity or free from carbon impurity, in which lithium sulfate and optionally lithium sulfit, lithium disulfate and/or other lithium sulfur oxides, and carbon impurity containing lithium sulfide are treated with hydrogen gas at temperautres in range from 300 to 600 °C. The invention further relates to a lithium sulfide producible in this manner, the carbon impurity content of which is less than 2.0% by weight, based on the weight of the lithium sulfide. This lithium sulfide is used for the production of battery components, preferably solid electrolytes, and solid-state batteries.

ELECTRODE ACTIVE MATERIAL, ELECTRODE, AND BATTERY

Resumen de: US20260341680A1

An electrode active material (10) of the present disclosure includes an oxide particle (1) containing titanium and not containing lithium, and a carbon material (2). The oxide particle (1) has a plurality of pores (11) having an average pore diameter(S) of 50 nm or more and 200 nm or less. The carbon material (2) exists inside the pores (11). An electrode (100) of the present disclosure includes the electrode active material (10) and a solid electrolyte (20) in contact with the electrode active material (10). A battery (1000) of the present disclosure includes a positive electrode (200), a negative electrode (300), and an electrolyte layer (400) placed between the positive electrode (200) and the negative electrode (300). The positive electrode (200) or the negative electrode (300) includes the electrode (100).

A METHOD FOR RECOVERING METALS FROM BLACK MASS FROM RECYCLING OF SPENT LITHIUM-ION BATTERIES

Resumen de: US20260341824A1

A method for recovering metals from black mass from recycling of spent lithium-ion batteries, characterized in that it comprises the following steps: a) leaching the black mass with sulfuric acid (VI) with the addition of H2O2 in order to obtain an extract comprising metals;b) adding iron dust to the extract in order to cement copper and then separating the precipitated copper from the extract;c) adding a manganese oxidizing agent to the extract and then separating the resulting MnO2 from the extract;d) alkalizing the extract in order to precipitate iron (III) hydroxide or iron (III) oxyhydroxide or a mixture thereof and then separating the resulting precipitate from the extract;e) alkalizing the extract in order to precipitate nickel (II) hydroxide and cobalt (II) hydroxide, or nickel (II) carbonate and cobalt (II) carbonate, separating the resulting precipitate from the extract to obtain a lithium-containing solution, solubilizing the separated precipitate in hydrochloric acid and then selectively separating nickel ions and cobalt ions from the obtained solution in a column filled with ion exchange resin, wherein the elution of nickel ions is carried out with a hydrochloric acid solution, and the elution of cobalt ions is carried out with water, to obtain a nickel ions solution and a cobalt ions solution, followed by adding oxalate solution to the obtained nickel ion solution and cobalt ion solution in order to precipitate nickel oxalate and cobalt oxalate, and then separat

POSITIVE ELECTRODE FOR LITHIUM BATTERY AND LITHIUM BATTERY

Resumen de: US20260341721A1

This positive electrode for a lithium battery includes a positive electrode active material containing manganese dioxide and a conductive auxiliary agent. The conductive auxiliary agent includes carbon black. The carbon black has an average primary particle size of 30 nm or more and a specific surface area of 1000 m2/g or more, and contains Al.

LEAD-ACID BATTERY

Resumen de: US20260341802A1

Disclosed is a lead-acid battery including: a positive electrode plate; a negative electrode plate; a separator interposed between the positive electrode plate and the negative electrode plate; and an electrolyte solution. The negative electrode plate includes a negative electrode material, the negative electrode material includes a Bi element, a content of the Bi element in the negative electrode material is 100 ppm or more and 300 ppm or less on a mass basis, the separator includes a crystalline region and an amorphous region, a ratio R represented by A1/(A1+A2) is 0.50 or more in an X-ray diffraction spectrum of the separator, A1 is an area of a first diffraction peak having a maximum peak height among diffraction peaks corresponding to the crystalline region, and A2 is an area of a second diffraction peak having a second highest peak height among the diffraction peaks corresponding to the crystalline region.

POWER STORAGE DEVICE BINDER AQUEOUS SOLUTION, POWER STORAGE DEVICE SLURRY, POWER STORAGE DEVICE ELECTRODE, POWER STORAGE DEVICE SEPARATOR, POWER STORAGE DEVICE SEPARATOR/ELECTRODE LAMINATE, AND POWER STORAGE DEVICE

Resumen de: US20260337322A1

A power storage device binder aqueous solution includes a water-soluble polymer, (meth)acrylamide, and (meth)acrylonitrile. The water-soluble polymer includes 0.01 mass % to 1 mass % of a polymerization initiator unit, and a content of the (meth)acrylamide with respect to the water-soluble polymer is 0.01 mass ppm or more and less than 1000 mass ppm.

POUCH TYPE BATTERY CELL

Resumen de: US20260341868A1

A battery cell may include an electrode assembly, a pouch configured to accommodate the electrode assembly and having a folded side and three sealed sides, an electrode lead configured to extend from the electrode assembly and protrude outward from the pouch, and an insulating, heat-resistant and fire-resistant barrier member having a box shape provided with a slit-type lead hole and one open end. In addition, a length, width and height of the barrier member may be X, Y and Z, respectively. Further, the electrode lead may be configured to protrude from the barrier member through the lead hole, and five sides of the battery cell excluding a folded side may be configured to be covered by the barrier member.

ELECTRODE PLATE SLITTING SYSTEM AND METHOD

Resumen de: US20260336145A1

An electrode plate slitting system includes an electrode plate cutting apparatus configured to slit a first electrode plate into a plurality of second electrode plates, wherein a width of the first electrode plate is greater than a width of the second electrode plate; an information collection module configured to collect information about the second electrode plates; and a processor configured to acquire the information and determine, according to the information, whether the second electrode plates have a deviation, and if the deviation has occurred, the processor being configured to perform deviation rectification on the first electrode plate. Also provided is an electrode plate slitting method. The electrode plate slitting system and method reduces the batch scrapping of electrode plates and the inflow of defective electrode plates into subsequent production processes.

BATTERY CELL FORMING APPARATUS AND METHOD

Resumen de: WO2026223433A1

Provided are a battery cell forming apparatus and method. The battery cell forming apparatus comprises a battery cell pressing mechanism. The battery cell pressing mechanism comprises: a first pressing part (10), comprising a plurality of first pressing segments (11) that are respectively independently movable, and configured to make the plurality of first pressing segments (11) move toward or away from a battery cell in a synchronous or asynchronous manner; and a second pressing part (20), located on the opposite side of the first pressing part (10) in a first direction (z), comprising a plurality of second pressing segments (21) that are respectively independently movable, and configured to make the plurality of second pressing segments (21) move toward or away from the battery cell in a synchronous or asynchronous manner, wherein the first direction (z) is parallel to a pressing direction of the battery cell pressing mechanism. The plurality of first pressing segments (11) may be divided into at least two groups of first pressing segments (11) that move relatively independently, and/or the plurality of second pressing segments (21) may be divided into at least two groups of second pressing segments (21) that move relatively independently.

METAL PHOSPHATES AS THE SEPARATOR COATING MATERIALS

Resumen de: US20260341905A1

A separator for use in an electrochemical cell, such as a cell used in a secondary Li-ion battery and a method of manufacturing such a separator. The separator includes a polymeric or aramidic membrane with an inorganic material in the form of one or more metal phosphates applied in the form of a coating to at least a portion of the polymeric or aramidic membrane. The separator is positioned between the cathode and the anode, such that the separator separates the anode and a portion of the electrolyte from the cathode and the remaining portion of the electrolyte; wherein the separator is permeable to the reversible flow of ions there through.

POWER STORAGE DEVICE

Resumen de: US20260341892A1

This power storage device (10) is provided with: an electrode body (14) which is obtained by winding a positive electrode (11), a negative electrode (12), and a separator (13); a polygonal tubular case (20) which has a polygonal tubular part and an opening provided at one end of the tubular part, and which houses the electrode body (14) and an electrolytic solution; and a polygonal sealing body (30) which closes the opening of the case (20). A groove-shaped thin part (34A) which releases a gas inside the case (20) to the outside is provided at a corner of a bottom surface part (20B) of the case (20) or at a corner of the sealing body (30).

NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY

Resumen de: US20260341800A1

A nonaqueous electrolyte secondary battery comprises a wound-type electrode body and a non-aqueous electrolyte. A negative electrode has: a negative electrode current collector; a first negative electrode active material layer provided on a first surface of the negative electrode current collector facing the inner side of the electrode body; and a second negative electrode active material layer provided on a second surface of the negative electrode current collector facing the outer side of the electrode body. Each of the negative electrode active material layers has a density of 1.3 g/cm3 or more, and contains silicon or silicon-containing material, and carboxymethyl cellulose or a salt thereof. The first etherification degree (DS1) of carboxymethyl cellulose or a salt thereof contained in the first negative electrode active material layer is greater than the second etherification degree (DS2) of carboxymethyl cellulose or a salt thereof contained in the second negative electrode active material layer.

LITHIUM-ION BATTERY ELECTRODE MATERIALS WITH GRAPHENE-CELLULOSE COMPOSITE COATINGS AND APPLICATIONS OF SAME

Resumen de: US20260341722A1

This invention in one aspect discloses a composite for enabling ambient stability of an electrochemical device. The composite comprises an active material, wherein individual particles and/or clusters of several particles of the active material are conformally coated with a protective barrier layer, via graphene-cellulose composite coating. The coating limits contact between atmospheric moisture and the LNO surface, which minimizes the generation of lithium impurities.

BATTERY SYSTEMS WITH THERMAL FUSE FOR ENHANCED THERMAL SAFETY

Resumen de: US20260341830A1

The present disclosure provides an energy storage system. For example, an energy storage system a chassis; a battery module comprising a plurality of battery cells and a thermal interface material disposed between a wall of the chassis and the plurality of battery cells such that if a temperature within the chassis is less than a predetermined temperature, the thermal interface material transfers heat to the wall of the chassis, and if the temperature within the chassis is equal to or greater than the predetermined temperature, the thermal interface material creates a thermal barrier that blocks heat from a hotter cell of the plurality of battery cells to the ambient and to other cells of the plurality of battery cells.

COMPOUND SHEET MANUFACTURING APPARATUS

Resumen de: US20260341669A1

A manufacturing apparatus includes: a first molding roll and a second molding roll that compress a particulate dry electrode compound into a compound sheet, the second molding roll supporting and conveying the compound sheet on a circumferential surface; and a first stretching roll arranged such that an interval to the second molding roll is smaller than a thickness of the compound sheet supported by the second molding roll to stretch the compound sheet. Relative positions of the three rolls are defined such that an imaginary line passing through a rotation axis of the first molding roll and a rotation axis of the second molding roll and an imaginary line passing through a rotation axis of the second molding roll and a rotation axis of the first stretching roll extend in directions in which the imaginary lines intersect each other.

Conveying Device and Cooling Furnace

Resumen de: US20260338473A1

Disclosed are a conveying device and a cooling furnace, where the conveying device includes first brackets and second brackets spaced apart in a first direction and arranged opposite to the first brackets, and the first brackets and the second brackets together define a limiting space for locating secondary cells. The conveying device further includes an adjustment assembly to which the first brackets and the second brackets are slidably connected, and which are slidable in a first direction with respect to the adjustment assembly, so that the limiting space can be increased or decreased in size in the first direction, and so that the limiting space can be adapted to the size of the secondary cells in the first direction. The conveying device provided by the present invention can be adapted to convey the secondary cells having different sizes, thereby improving the applicability of the cooling furnace having the conveying device.

BATTERY CAPACITY CHECK METHODS AND SYSTEMS FOR AIRWORTHINESS DETERMINATION

Resumen de: US20260336467A1

A charging system can comprise a processor configured to perform capacity checks at predetermined intervals. The capacity checks can include commanding, via a processor, charging each cell in the battery module at a first constant rate to a first voltage; commanding, via the processor, tapering of a charge at a constant voltage until a current reaches a predetermined amperage; commanding, via the processor, discharging the battery module to a second voltage; and determining, via the processor, a capacity of the battery module in response to the discharging.

Method for Cleaning Workpiece Carriers for Battery Cell Lacquering, Device for Cleaning Workpiece Carriers for Battery Cell Lacquering, and Vehicle

Resumen de: US20260335940A1

The invention relates to a method for cleaning workpiece carriers (16) for battery cell lacquering, in which method a coating applied to the workpiece carrier (16) during the battery cell lacquering is removed by mechanical machining. The invention further relates to a device (40) for cleaning workpiece carriers (16) for battery cell lacquering, and to a vehicle having a battery with at least one battery cell which is lacquered with a workpiece carrier (16) which is cleaned by a method according to the invention and/or a device according to the invention.

BATTERY PACK AND VEHICLE INCLUDING THE SAME

Resumen de: US20260341816A1

A battery pack of the present invention includes: a battery module; a pack housing provided with a pack case, in which the battery module is accommodated, and a pack cover configured to open and close the pack case; and a dew condensation detection sensor configured to detect dew condensation through an insulation abnormality signal generated inside the pack case, wherein the dew condensation detection sensor includes a first conductor and a second conductor connected to each other by the dew condensation generated inside the pack case to generate the insulation abnormality signal.

STACKING DEVICE AND METHOD FOR MANUFACTURING ALL-SOLID-STATE BATTERY USING THE SAME

Resumen de: US20260336962A1

The present invention relates to a stacking device and a method for manufacturing an all-solid-state battery, and more particularly, a stacking device including a main portion, and a clamp unit disposed on the main portion, wherein the clamp unit includes a first clamp unit including a first fixing portion and a first vertical driving portion configured such that the first fixing portion moves vertically, and a second clamp unit including a second fixing portion and a second vertical driving portion configured such that the second fixing portion moves vertically. The first clamp unit and the second clamp unit are spaced apart in a first direction, the first fixing portion of the first clamp unit is configured to grip an upper surface of a first member, the second fixing portion of the second clamp unit is configured to grip an upper surface of a second member, and the upper surface of the first member and the upper surface of the second member are positioned at different heights.

SULFIDE ELECTROLYTE MEMBRANE HAVING GRADIENT PARTICLE SIZE DISTRIBUTION, AND PREPARATION METHOD THEREFOR AND USE THEREOF

Resumen de: WO2026222977A1

The present invention relates to the technical field of solid-state batteries, and discloses a sulfide electrolyte membrane having a gradient particle size distribution, and a preparation method therefor and the use thereof. The preparation method comprises: firstly preparing a solution of a modified binder by blending polyurethane and cis-1,4-polybutadiene rubber; then formulating three slurries having different particle sizes using a sulfide electrolyte, the modified binder and an organic solvent; sequentially coating the slurries on a substrate in descending order of the average particle sizes of the sulfide electrolyte in each slurry; allowing each wet film layer to dry before applying the next layer, so as to form a composite wet film having a gradient particle size distribution; and performing vacuum drying and a hot rolling treatment to finally prepare a target electrolyte membrane.

ENERGY STORAGE APPARATUS AND ELECTRIC DEVICE

Resumen de: WO2026223150A1

The present application relates to the technical field of energy storage, and discloses an energy storage apparatus and an electronic device. The energy storage apparatus comprises: a casing, enclosing an accommodating cavity having an opening; an electrode assembly, accommodated in the accommodating cavity; and an end cover assembly, comprising a cover plate, an electrode terminal, and a sealing member. The cover plate seals the opening of the accommodating cavity, and is provided with a welding hole communicated with the accommodating cavity; the electrode terminal passes through the cover plate; the end portion of the electrode terminal facing the electrode assembly is provided with a connection portion; the connection portion is provided with a welding portion exposed at the welding hole; the welding portion is electrically connected to the electrode assembly; and the sealing member seals and is limited in the welding hole.

COMPOUND FOR ELECTROLYTE, COMPOUND FOR ELECTROLYTE ADDITIVE, ELECTROLYTE MATERIAL, ELECTROLYTE ADDITIVE, ELECTROLYTE FOR SECONDARY BATTERY, AND SECONDARY BATTERY

Resumen de: US20260341790A1

The present disclosure relates to a compound for an electrolyte solution, a compound for an electrolyte solution additive, an electrolyte solution material, an electrolyte solution additive, an electrolyte solution for a secondary battery, and a secondary battery, and provides an electrolyte solution for a secondary battery, including a novel compound, or an isomer thereof.

POSITIVE ELECTRODE ACTIVE MATERIAL, PREPARATION METHOD, POSITIVE ELECTRODE SHEET, SECONDARY BATTERY, AND ELECTRIC DEVICE

Resumen de: US20260337051A1

Provided in the present application are a positive electrode active material, a preparation method, a positive electrode sheet, a secondary battery, and an electric device. The positive electrode active material has the following general formula: LiaNixM1yMnzM21-x-y-zO2, where M1 and M2 each independently include one or a plurality of Co, Al, B, Zr, Sr, Y, Sb, W, Ti, Mg, or Nb, 0.8≤a≤1.2, 0.55≤x<1, 0

LITHIUM SECONDARY BATTERY AND METHOD FOR MANUFACTURING LITHIUM SECONDARY BATTERY

Resumen de: US20260341741A1

0000 Provided is a technique for suppressing a decrease in cell capacity while suppressing a short circuit between a positive electrode and a negative electrode. The present disclosure relates to a lithium secondary battery including a positive electrode and a negative electrode which face each other with a separator being interposed between the positive electrode and the negative electrode, in which the positive electrode includes a positive electrode current collector configured to sandwich a resin layer between a first metal layer and a second metal layer, and a positive-electrode active material layer provided on the positive electrode current collector, the first metal layer includes a first portion in which the positive-electrode active material layer is not provided, the second metal layer includes a second portion in which the positive-electrode active material layer is not provided, and the first portion and the second portion have different dimensions in both a width direction and a length direction.

ELECTROLYTE INJECTION SYSTEM AND ELECTROLYTE INJECTION METHOD

Resumen de: US20260341932A1

An electrolyte injection system includes an electrolyte injection device, an upper computer, and a control device. The upper computer is used for: acquiring electrolyte injection data of the battery cell after battery cell electrolyte injection is completed, and locally recording the electrolyte injection data of the battery cell as historical electrolyte injection data; determining a first battery cell set placed in a battery cell tray that currently enters the electrolyte injection device; on the basis of the local historical electrolyte injection data, determining from among the first battery cell set a second battery cell set, electrolyte injection of which has not been completed; determining from among the second battery cell set a target battery cell set to be subjected to electrolyte injection; and sending to the control device the position of each target battery cell in the target battery cell set in the battery cell tray.

Titanium Doped Anhydrous Ferric Phosphate Material, a Preparation Method and a Use Thereof

Resumen de: US20260341692A1

This disclosure provides a titanium doped anhydrous ferric phosphate material, a preparation method and a use thereof, which belongs to the technical field of preparation of ferric phosphate materials. The preparation method of the titanium doped anhydrous ferric phosphate material includes: mixing the titanium containing ferrous sulfate raw material solution and the titanium free ferrous sulfate raw material solution to obtain a mixed solution; mixing the mixed solution with an oxidant and a phosphorus source to obtain a slurry containing ferric phosphate and titanium phosphate; and subjecting the slurry to aging, rinsing, drying, and sintering sequentially to obtain the titanium doped anhydrous ferric phosphate material. In this disclosure, the content of titanium element in the final product is stable and controllable; the titanium doped anhydrous ferric phosphate material has a uniform nanoscale particle stacking morphology, which is conducive to the application of preparing battery materials.

BATTERY PACK EQUIPPED WITH VARIABLE COUPLING PART PREVENTING STRUCTURAL COLLAPSE

Resumen de: US20260341870A1

A battery pack may include a battery module; a pack tray to accommodate the battery module therein and having a top opening; a pack cover disposed at the top opening of the pack tray to cover an accommodation space where the battery module is accommodated; and a variable coupling part to elastically couple the pack tray and the pack cover to each other such that the accommodation space is capable of being variably expanded in response to an increase in pressure when an event occurs.

LITHIUM-ION SECONDARY BATTERY, BATTERY APPARATUS, ELECTRICAL APPARATUS, PREPARATION METHOD FOR POSITIVE ELECTRODE ACTIVE MATERIAL, AND PREPARATION METHOD FOR POSITIVE ELECTRODE PLATE

Resumen de: US20260341686A1

The present disclosure relates to a lithium-ion secondary battery, a battery apparatus, an electrical apparatus, and preparation methods for a positive electrode active material and a positive electrode plate. The battery includes a positive electrode plate, a negative electrode plate, and an electrolyte. The positive electrode plate comprises a current collector and a film layer disposed on at least one side of the collector. The film layer comprises a positive electrode active material including lithium-containing transition metal phosphate particles, at least part of the surfaces of which are coated with a carbon material. In a cross-section along the electrode plate thickness direction, the DA90 of the particles ranges from 1400 nm to 2100 nm, and the particle size concentration ratio (DA90-DA10)/DA50 ranges from 1.855 to 2.375, wherein DA90, DA50, and DA10 respectively denote the particle sizes corresponding to 90%, 50%, and 10% of the area cumulative distribution.

SECONDARY BATTERY AND ELECTRICAL DEVICE

Resumen de: US20260341856A1

A secondary battery includes a casing, an electrode assembly disposed in the casing, and a sealing element configured to seal the casing. The casing includes a first casing and a second casing that are insulated and that jointly form an accommodation cavity. The accommodation cavity is filled with an electrolyte solution. The first casing and the second casing are disposed facing each other, with a clearance in between. The first casing includes a first metal layer and a second metal layer that covers a surface of the first metal layer, the surface being away from the accommodation cavity. Hardness of both the second casing and the second metal layer is greater than hardness of the first metal layer. A positive electrode of the electrode assembly is electrically connected to the first metal layer. A negative electrode of the electrode assembly is electrically connected to the second casing.

PRODUCTION OF HYDROGEN AND LITHIUM HYDROXIDE IN A BASIC ENVIRONMENT

Resumen de: US20260337801A1

The present invention relates to the electrochemical production of hydrogen and lithium hydroxide from Li+-containing water using a LiSICon membrane. The problem addressed by the present invention is that of specifying a process which is operable economically even on an industrial scale. The process shall especially exhibit a high energy efficiency and achieve a long service life of the membrane even when the employed feed contains impurities harmful to LiSICon materials. A particular aspect of the process is that the cell simultaneously separates off the lithium via the membrane and effects electrolysis of water. An essential aspect of the process is that the electrochemical process is performed in a basic environment, more precisely at pH 9 to 13. The pH is adjusted by addition of a basic compound to the feed.

BATTERY PACK HAVING BREAKING PROTECTION FUNCTION AND ENERGY STORAGE SYSTEM HAVING BREAKING PROTECTION FUNCTION

Resumen de: US20260342077A1

A battery pack includes a battery module including a plurality of single cells, a breaking device connected in series to the battery module, a current sensor, and a controller. A first end of the current sensor is connected to a positive output end of the battery pack, and a second end of the current sensor is connected to a negative output end of the battery pack, to detect a current difference between the positive output end and the negative output end of the battery pack. The controller is configured to: when the current difference detected by the current sensor is greater than a first threshold, control the breaking device to be turned off, to quickly cut off a fault when the short-circuit to ground fault occurs in the cell in the battery pack, so as to ensure safe operation of the entire energy storage system.

Electrode Assembly and Secondary Battery Including the Same

Resumen de: US20260341799A1

An electrode assembly includes a positive electrode, a negative electrode, a separator, and an avoidance recess part. The separator is disposed between the positive electrode and the negative electrode, and the avoidance recess part is defined in any one of the positive electrode and the negative electrode. The avoidance recess part is defined to be recessed in an area overlapping an end of a remaining electrode of the positive electrode and the negative electrode. A secondary battery including the same is also provided.

SOLID ELECTROLYTE AND ENERGY STORAGE DEVICE

Resumen de: US20260341779A1

A solid electrolyte according to one aspect of the present invention contains a lithium element, a phosphorus element, a sulfur element, a halogen element, and an aluminum element, has a crystal structure, and satisfies both of the following formulas (a1) and (b1) or both of the following formulas (a2) and (b2). 2.89

Method of Preparing Lithium Secondary Battery and Lithium Secondary Battery Prepared Thereby

Resumen de: US20260341691A1

The present invention relates to a method of preparing a lithium secondary battery which includes steps (1) to (3) below. (1) preparing a first positive electrode active material by mixing a small particle lithium composite transition metal oxide having an average particle diameter (D50) of less than 7 μm with a boron-containing raw material and performing a heat treatment;(2) preparing a second positive electrode active material by mixing a large particle lithium composite transition metal oxide having an average particle diameter (D50) of 8 μm or more with a cobalt-containing raw material and a boron-containing raw material and performing a heat treatment;(3) mixing the first positive electrode active material and the second positive electrode active material to prepare a positive electrode material having a bimodal particle diameter distribution.

ELECTRODE ASSEMBLY AND SECONDARY BATTERY INCLUDING THE SAME

Resumen de: US20260341801A1

An electrode assembly includes a first electrode; a second electrode; a first separation membrane interposed between the first electrode and the second electrode, wherein the first electrode, the second electrode, and the first separation membrane are wound together to form a jelly-roll structure; and an auxiliary separation membrane disposed between the first electrode and the first separation membrane in a center of the jelly-roll structure. The auxiliary separation membrane overlaps and directly contacts the first separation membrane and overlaps an end of the first electrode at the center of the jelly-roll structure without extending beyond the first separation membrane.

FFC Bus Bar

Resumen de: US20260341915A1

An FFC bus bar includes a cable stack structure formed by stacking a plurality of flat flexible cables, and a high current terminal connected to at least one end portion of the cable stack structure. Each flat flexible cable comprises a terminal access portion including strands of conductor wires at least one end portion thereof, and the terminal access portion is welded to the high current terminal.

THERMAL RUNAWAY DETECTION SYSTEM FOR BATTERIES WITHIN ENCLOSURES

Resumen de: US20260341817A1

A battery thermal runaway detection sensor system for use within a battery enclosure housing one or more batteries. The system has at least one gas sensor for detecting a venting condition of a battery cell of hydrogen, carbon monoxide or carbon dioxide, and providing a sensed output in real time. A microcontroller determines power management and signal conditioned output on the concentration of specific battery venting gases based on the sensed output from said at least one gas sensor.

TERMINAL FOR SECONDARY BATTERY AND METHOD FOR MANUFACTURING TERMINAL FOR SECONDARY BATTERY

Resumen de: US20260341928A1

Provided is a method for manufacturing an electrode terminal formed of different kinds of metals excellent in junction strength. The manufacturing method of a terminal herein disclosed includes the following steps of: preparing a first member and a second member each made of a metal and forming the terminal, with the first member being formed in a sheet shape and having at one surface thereof a concave part for allowing a part of the second member to be fitted therein, and with the second member having a flange part to be accommodated in the concave part; and fixing the first member and the second member to each other by ultrasonic pressure contact, with the ultrasonic pressure contact being performed by applying an ultrasonic wave vibration while applying a pressure in a direction of stacking of the first member and the second member in a state where the flange part of the second member is arranged in the concave part of the first member, thereby extending the flange part, and bringing a part of the extended flange part into pressure contact with an inner wall surface of the concave part.

LITHIUM SECONDARY BATTERY AND COMPOSITE MEMBER

Resumen de: US20260341909A1

A disclosed lithium secondary battery includes a positive electrode, a negative electrode, a separator disposed between the positive electrode and the negative electrode, a spacer, and a non-aqueous electrolyte having lithium-ion conductivity. The negative electrode is an electrode onto which lithium metal is deposited during charging and from which lithium metal dissolves during discharging. The spacer (53) is formed on one main surface of one of the positive electrode, the negative electrode, and the separator. The spacer (53) includes linear first protrusions (53a) forming a periodically repeated pattern, and a plurality of second protrusions (53b) that are not in contact with the first protrusions (53a). The first protrusions (53a) include a plurality of annular portions that are connected to each other. The second protrusions (53b) are arranged inside the annular portions.

SYSTEM AND METHOD FOR TEMPERATURE MANAGEMENT SYSTEM FOR A FUEL CELL UNIT

Resumen de: US20260341761A1

A temperature management system for a fuel cell unit includes a pump, a valve fluidly connected to the pump, and defining an inlet, and first, second and third outlets, a heater, a heat exchanger, a radiator. The valve is selectively adjustable between at least first, second and third configurations. In the first configuration, the valve is configured to direct fluid along a first path defined at least by the first outlet, the heater, the fuel cell unit, the pump, and the inlet. In the second configuration, the valve is configured to direct fluid along the first path and along a second path defined at least by the second outlet, the heat exchanger, the pump, and the inlet. In the third configuration, the valve is configured to direct fluid along a third path defined at least by the third outlet, the radiator, the fuel cell unit, the pump, and the inlet.

Positive Electrode Active Material Precursor, Method Of Preparing The Same, Method Of Preparing Positive Electrode Active Material Using The Same, And The Positive Electrode Active Material

Resumen de: US20260337054A1

A positive electrode active material precursor which may achieve a positive electrode active material in a form of a uniform single particle. Specifically, a positive electrode active material precursor, which includes a lithium composite transition metal oxide that is in a form of a single particle, and in which a molar ratio (Li/Me) of lithium to total transition metals is in a range of from 0.01 to 0.7. The positive electrode active material precursor has a pellet density of 3.0 g/cm3 to 4.0 g/cm3. A method of preparing the positive electrode active material precursor, method of preparing a positive electrode active material using the positive electrode active material precursor, and the positive electrode active material itself are also disclosed.

Method for Producing a Battery Paste and Battery

Resumen de: US20260341720A1

Processes for producing a battery paste, including electrically charging a particulate material to provide a charged particulate material, and dispersing the charged particulate material in a binder and a solvent to form the battery paste, are provided. Batteries including the battery paste obtained by the processes are further provided.

BUTTON-TYPE SECONDARY BATTERY AND METHOD FOR MANUFACTURING THE SAME

Resumen de: US20260341859A1

A method for manufacturing a button-type secondary battery includes preparing a lower can including an accommodation part having a downward recess, a connection part extending outward from an upper end of the accommodation part, and a bent part extending from the connection part with a recessed lower insertion groove in the bent part; preparing an upper can including a cover part on the accommodation part and a bonding part extending along an edge of the cover part and bonded to the bent part with a recessed upper insertion groove in the bonding part; disposing a gasket on the lower can; and bonding the bonding part to the bent part to finish the accommodation groove of the lower can through the cover part of the upper can. The lower insertion groove and the upper insertion groove are spaced apart and vertically shifted with respect to each other.

BATTERY LID

Resumen de: US20260341891A1

A battery lid includes a metal plate integrally formed with a valve and a surrounding plate portion surrounding the valve which is configured to facilitate rupturing the valve at a predetermined pressure. The valve includes a pressure receiving plate portion having a bending groove, and being bendable from the bending groove by pressure applied to the valve, and a thin plate portion which is thinner than the surrounding plate portion, and connects the pressure receiving plate portion to the surrounding plate portion. The thin plate portion has a rupture groove passing through extension sections on respective lines extending from the bending groove. As the pressure receiving plate portion is deformed by the pressure applied to the valve, the extension sections are pulled more strongly than are other sections in the valve. Therefore, when the predetermined pressure is applied, the valve is ruptured from the extension sections of the rupture groove.

ADHESIVE TAPE ATTACHING SYSTEM, ADHESIVE TAPE ATTACHING METHOD, AND BATTERY PRODUCTION LINE

Resumen de: US20260336229A1

An adhesive tape attaching system has an auxiliary station for loading and unloading, and the adhesive tape attaching system includes an adhesive tape attaching assembly and a traversing mechanism. The adhesive tape attaching assembly has an adhesive tape attachment position for adhesive tape attachment. At least two adhesive tape attaching assemblies are provided, and an arrangement direction of adhesive tape attachment positions of a plurality of adhesive tape attaching assemblies is a first direction. The auxiliary station is provided between at least two adjacent adhesive tape attaching assemblies. Among two adjacent adhesive tape attaching assemblies corresponding to the auxiliary station, the adhesive tape attachment position of one adhesive tape attaching assembly is a first adhesive tape attachment position, and the adhesive tape attachment position of the other adhesive tape attaching assembly is a second adhesive tape attachment position.

LIFTER, BATTERY PRODUCTION LINE, AND LIFTING METHOD

Resumen de: US20260336950A1

A lifter includes at least two lifting mechanisms. At least one of the lifting mechanisms is configured to perform a lifting operation for lifting a component to be transferred, and at least one of the lifting mechanisms is configured to perform a lowering operation for lowering the component to be transferred. The lifting mechanism includes a power assembly and a carrier assembly. The power assembly is capable of driving the carrier assembly to ascend or descend. The carrier assembly includes a plurality of rollers capable of rotating independently. Tops of the plurality of rollers are configured to carry the component to be transferred. Through the rollers rotating in the same direction, the component to be transferred is able to move along a direction perpendicular to rotation axes of the rollers while maintaining contact with the tops of the rollers.

ELECTROLYTES

Resumen de: US20260341792A1

The invention relates to the use, as electrolyte, of a composition comprising a solvent system which comprises a first component comprising one or more non-aqueous solvents and a second component comprising one or more performance additives. Devices and methods including electrolytes compositions are also disclosed.

NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY

Resumen de: US20260341726A1

A nonaqueous electrolyte secondary battery includes a positive electrode, a negative electrode, and a nonaqueous electrolyte. The positive electrode includes a positive electrode active material. The positive electrode active material includes a lithium-containing composite oxide, and a sulfonic acid compound present on a surface of the lithium-containing composite oxide. The nonaqueous electrolyte contains a sulfur-containing compound.

Method for reconditioning lithium-containing energy accumulators

Resumen de: US20260341822A1

The present invention relates to a method for reprocessing lithium-containing energy storage means, the method comprising at least the following method steps: i) —optionally pretreating the lithium-containing energy storage means, the pretreatment comprising at least one of thermal, mechanical, and electrical pretreatment;ii) pyrolysing the optionally pretreated lithium-containing energy storage means, with the liberation of carbon dioxide, and with at least partial carbonation of the contained lithium under a carbon dioxide atmosphere;iii) separating lithium in a separating step; andiv) hydrometallurgically reprocessing the mixture obtained in method step iii), with further carbonation of the contained lithium and with separation of lithium in a further separating step, withv) carbon dioxide liberated in method step ii) being returned to at least one of method steps ii) and iii).

SECONDARY BATTERY, METHOD FOR MANUFACTURING POSITIVE ELECTRODE ACTIVE MATERIAL, PORTABLE INFORMATION TERMINAL, AND VEHICLE

Resumen de: US20260341697A1

Secondary batteries using lithium cobalt oxide as positive electrode active materials have a problem of a decrease in battery capacity due to repeated charging/discharging, for example. A positive electrode active material particle which hardly deteriorates is provided. In a first step, a container in which a lithium oxide and a fluoride are set is placed in a heating furnace, and in a second step, the inside of the heating furnace is heated in an atmosphere containing oxygen. The heating temperature of the second step is from 750 °C to 950 °C, inclusive. By the manufacturing method, fluorine can be contained in the positive electrode active material particle to increase the wettability of the surface of the positive electrode active material so that the surface of the positive electrode active material is homogenized and planarized. The crystal structure of the thus manufactured positive electrode active material is unlikely to be broken in repeated high-voltage charging/discharging. Thus, secondary batteries using the positive electrode active material having such a feature have greatly improved cycle characteristics.

APPARATUS AND METHOD FOR PREDICTING STATE OF BATTERY

Resumen de: US20260338868A1

An apparatus for predicting a state of a battery includes: a first communication unit configured to: receive data on the temperature, current, and voltage of a plurality of battery cells measured in a battery management system included in a battery pack; and receive, from a vehicle using a corresponding battery cell, first environmental information regarding an environment in which the vehicle is traveling; a second communication unit configured to receive, from outside the apparatus, experimental data on the state of the battery cell or the battery pack in various environments; and a battery state prediction unit configured to predict the state of a battery using the received data on the temperature, current, and voltage of each of the plurality of battery cells, the first environmental information, and the state environmental information, wherein the state of the battery includes: a battery cell charge state; and a battery cell degradation state.

ELECTROCHEMICAL APPARATUS AND ELECTRONIC APPARATUS

Resumen de: US20260341672A1

An electrochemical apparatus, including a positive electrode, a negative electrode, and an electrolyte. The negative electrode includes a negative electrode current collector and a negative electrode active substance layer formed on the negative electrode current collector. The negative electrode current collector has a high tensile strength and the negative electrode active substance layer has a specific weight. The electrochemical apparatus has improved high-temperature storage expansion performance and cyclic expansion performance.

FLUIDIZED BED REACTOR AND METHOD FOR RECOVERING ACTIVE METAL OF LITHIUM SECONDARY BATTERY USING SAME

Resumen de: US20260337716A1

A fluidized bed reactor according to exemplary embodiments of the present invention may include: a reactor body; a dispersion plate which includes a base plate and first injection columns protruding from an upper surface of the base plate; and a second injection column which is configured to inject a gas so as to form a gas flow which rotates along an inner surface of the reactor body.

Cover Assembly, Energy Storage Cell, Battery Module and Method for Producing a Cover Assembly

Resumen de: US20260341939A1

A cover assembly for a cell housing of an energy storage cell has: an end plate with an attachment assembly, the end plate having an opening through which electrolyte can be filled into the cell housing and a circumferential groove; a first closure element configured to close the opening before filling of the cell housing and to be penetrated by a filling element for filling the cell housing; and a second closure element configured to close the opening after filling of the cell housing. In the installed state, the cover assembly is configured to enable the cell housing to be filled with an electrolyte. The circumferential groove is configured to enable the end plate to break open in the region of the groove if a certain excess pressure is reached or exceeded in the cell housing, so that an at least partial escape of the electrolyte is enabled through the broken open region.

PROCESS FOR COMPACT DEPOSITION OF LITHIUM ON AN ELECTRICALLY CONDUCTIVE SUBSTRATE

Resumen de: US20260341675A1

A conductive substrate coated with compact lithium is described, wherein the substrate consists of sheet-like metals or sheet-like carbon-based materials, wherein on at least one side of the substrate a 1 to 5000 nm thick lithiophilic interlayer is present which contains or consists of at least one metallic or metalloid element selected from the group Zn, Al, B, Cd, Au, Ag, Si, Pb, Sn, Ge, Ga, In, Mg, Cr, V, Mo, W, Zr, Mn. Also described are processes for producing such a substrate coated with lithium.

SYNTHESIS OF LITHIUM LANTHANUM ZIRCONATE FROM NANOCRYSTALLINE LANTHANUM ZIRCONATE

Resumen de: US20260337047A1

Fabricating a layer including lithium lanthanum zirconate layer includes forming a slurry including lanthanum zirconate nanocrystals, a lithium precursor, and a lanthanum precursor in stoichiometric amounts to yield a dispersion including lithium, lanthanum, and zirconium. The slurry is dispensed onto a substrate and dried. The dried slurry is calcined to yield the layer including lithium lanthanum zirconate.

CELL, POWER BATTERY PACK, AND ELECTRIC VEHICLE

Resumen de: US20260341866A1

Some aspects of the disclosure provide a cell that includes a cell body having a length L, a width H, a thickness D, and an energy capacity E. The length L of the cell body is greater than the width H, and the width H of the cell body is greater than the thickness D. The length L of the cell body and the energy capacity E of the cell body satisfy L/E=0.8 mm Wh-1-2.45 mm. Wh-1. In some examples, a power battery pack includes a housing and a plurality of cells in the housing. At least one of the plurality of cells is configured according to the above cell.

Graphite from Sustainable Sources and Method for Making Same

Resumen de: US20260337029A1

Graphite prepared from renewable or sustainable source feedstock, methods for making same, and batteries comprising same.

Device and Method for Monitoring and Levelling the Charge Level of Batteries

Resumen de: US20260342107A1

The invention relates to the field of electrical engineering. The invention can be used in devices installed in a vehicle. The aim of the invention is to expand the functionality of the device. Extension through timely diagnostic control. As well as an extension by adapting the battery pack to a more comprehensive set of electrical parameters. The monitoring device and method comprise a battery set (100) (Battery).

PRECURSOR FOR POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, POSITIVE ELECTRODE ACTIVE MATERIAL DERIVED FROM SAME, AND METHOD FOR MANUFACTURING POSITIVE ACTIVE MATERIAL

Resumen de: US20260341694A1

The present disclosure relates to a positive electrode active material precursor for a lithium secondary battery, a positive electrode active material for a lithium secondary battery, and a method of producing a positive electrode active material. Controlling an ionic environment during a coprecipitation process to form the precursor, then sintering yields a positive electrode active material having an improved single crystal particle morphology that imparts improved stability, capacity and lifetime characteristics to lithium secondary batteries constructed therefrom. X-ray crystallography indicates that improved positive electrode active material precursor materials have been grown by forming hydrogen bonds in a direction.

Slot Die Coater Capable of Automatically Adjusting Position of Shim Plate and Method for Adjusting Position of Shim Plate of Slot Die Coater

Resumen de: US20260335923A1

A slot die coater for automatically adjusting a position of a shim plate includes: a slot die, at least one motor disposed inside the slot die, a shim plate disposed on the slot die, and at least one pin. The pin is connected to the shim plate and the motor such that the pin is movable by the motor.

Method and Apparatus for Injecting Electrolyte

Resumen de: US20260341933A1

An apparatus for injecting an electrolyte into a secondary battery, may include: a chamber that accommodates the secondary battery therein; an injecting part that stores the electrolyte therein and injects the electrolyte into the secondary battery through a difference in pressure between the inside thereof and the inside of the chamber; and a compressing part that is connected to the injecting part and compresses the inside of the injecting part to inject the electrolyte remaining in the injecting part into the secondary battery. A method includes: maintaining a chamber that accommodates a secondary battery in a vacuum state; injecting an electrolyte stored in an injecting part into the secondary battery using a difference in pressure between the inside of the chamber and an inside of the injecting part; and compressing the inside of the injecting part using a compressing part to inject remaining electrolyte into the secondary battery.

BATTERY CELL AND BATTERY

Resumen de: US20260341926A1

0000 A battery cell includes a battery cell body. The battery cell body includes a body portion and multiple groups of tab structures. Each tab structure includes multiple tabs arranged on a same side of the body portion in a first direction of the battery cell, and each of the tabs is connected to the body portion. Some of the tabs of the tab structure form a first tab group, and some other of the tabs form a second tab group. The first tab group and the second tab group are bent toward each other respectively at a first bending region and a second bending region and are connected in a stacking manner, and the first bending region and the second bending region are spaced apart in a second direction perpendicular to the first direction.

Non-Aqueous Electrolyte Solution for Lithium Secondary Battery and Lithium Secondary Battery Including the Same

Resumen de: US20260341787A1

Provided are a non-aqueous electrolyte solution for a lithium secondary battery, which includes a compound represented by Formula 1, a lithium salt, and an organic solvent; and a lithium secondary battery including the same:wherein all the variables are described herein.

BATTERY MODULE AND METHOD FOR MANUFACTURING THE SAME, BATTERY PACK

Resumen de: US20260341886A1

A battery module includes a cell unit assembly including a plurality of cell units, and an end frame disposed at an end of the cell unit, where the cell unit includes: a cell stack, and a cell cover that covers a side portion and an upper portion of the cell stack.

ELECTRONIC ASSEMBLY FOR A HIGH-VOLTAGE BATTERY OF A MOTOR VEHICLE AND METHOD FOR POPULATING A HOUSING OF A HIGH-VOLTAGE BATTERY FOR A MOTOR VEHICLE

Resumen de: US20260341806A1

An electronic assembly for a high-voltage battery of a motor vehicle is disclosed. The assembly includes a printed circuit board equipped with electronic components, on the underside of which is arranged an insulation layer designed as high-voltage insulation, which covers at least most of the underside of the printed circuit board and is designed as a contact surface for mounting the electronic assembly on a housing of the high-voltage battery. The invention also relates to a method for equipping a housing of a high-voltage battery for a motor vehicle with at least one such electronic module.

POSITIVE ELECTRODE MIXTURE, METHOD FOR MANUFACTURING POSITIVE ELECTRODE MIXTURE, AND LITHIUM ION BATTERY

Resumen de: US20260341687A1

A positive electrode mixture including a sulfur-based active material and a solid electrolyte, wherein in the powder X-ray diffraction using CuKα ray, the positive electrode mixture has a diffraction peak A at 2θ=25.6±0.5° and a diffraction peak B at 2θ=45.2±1.0°, and it has a half width of the diffraction peak A of 0.25° or larger.

TEMPERATURE CONTROL DEVICE, IN PARTICULAR COOLING DEVICE FOR A MOTOR VEHICLE

Resumen de: US20260338479A1

A thermal regulation device includes a tube configured to be in contact with at least one electrical energy storage unit. The tube includes a plurality of heat transfer fluid circulation channels, and at least a first collecting tank. The first collecting tank includes at least two shells configured to be assembled together. At least one of the shells includes at least one separating partition in order to separate the collecting chamber into at least two parts that are leak-tight with respect to one another when the shells are assembled. At least one separating partition is obtained by stamping, and the base of the separating partition includes a stamped portion forming a groove configured to include the angle due to stamping, such that the end of the separating partition has a face parallel to the face of the end of the tube.

NONAQUEOUS ELECTROLYTE ENERGY STORAGE DEVICE

Resumen de: US20260341725A1

A nonaqueous electrolyte energy storage device according to one aspect of the present invention includes: a positive electrode containing a positive active material containing a tungsten element; and a negative electrode containing carbon-coated solid graphite in which at least a part of a surface of the solid graphite is coated with a carbonaceous material other than graphite, in which a percentage of voids in the carbon-coated solid graphite is 2% or less, and a coating amount of the carbonaceous material in the carbon-coated solid graphite is 12.0% by mass or more.

BATTERY WIRING MODULE

Resumen de: US20260341820A1

A case (22) of a battery wiring module has a sensor housing part (30) for housing a temperature sensor (60) for detecting the temperature of a battery, a first locking part (41), and a second locking part (51). The first locking part (41) is locked to a first locked part (71) provided on the battery. The second locking part (51) is locked to a second locked part (81) provided on the battery.

BATTERY CELL, BATTERY, AND ELECTRIC APPARATUS

Resumen de: US20260341906A1

Disclosed are a battery cell, a battery and an electrical apparatus. The battery cell includes a negative electrode sheet and a separator, where the separator includes a porous substrate and a coating arranged on at least one surface of the porous substrate, the coating including nanocellulose and a granular filler; and the width of the separator is denoted as A, the width of the negative electrode sheet is denoted as B, both are in units of mm, and 0

THERMAL MANAGEMENT SYSTEM

Resumen de: US20260336820A1

The invention relates to a thermal management system (1, 1a, 1b, 41, 51, 61) comprising a fluid cooling circuit (2) comprising a cooling channel (3) in a thermal load (4), a cooling pump (5) arranged to circulate cooling fluid inside the fluid cooling circuit (2) and a heat exchanger (6) connected between the cooling channel (3) in the thermal load (4) and the cooling pump (5). The fluid cooling circuit (2) comprises a heat exchanger by-pass valve (7) connected to the cooling channel (3) in the thermal load (4) and to the cooling pump (5). The thermal management system (1, 1a, 1b, 41, 51, 61) comprises a ram air channel (8) comprising a ram air inlet door (9). The ram air channel (8) is arranged to provide cooling to the heat exchanger (6) by ram air cooling when the ram air inlet door (9) is open. The thermal load (4) is an electric motor (13) with at least two associated motor controllers (14) connected in parallel with the electric motor (13). The invention also relates to an electric aircraft (23) comprising a thermal management system.

SECONDARY BATTERY

Resumen de: US20260341919A1

A secondary battery includes a wound-type electrode group 20 configured of a first electrode 21 and a second electrode 25 wound with a separator 29 therebetween, each of which has a sheet shape that is long in a first directional D1. The first electrode 21 includes a first current collector 22 having sheet shape that is long in the first directional D1. The first current collector 22 includes a first exposed portion 23 located at one end thereof in a second direction D2 perpendicular to the first direction D1. The secondary battery further includes a first current collecting member connected to the first exposed portion 23 to be conductive to the first current collector 22. A plurality of first slits 23a are formed in an area of the first exposed portion 23 located between the opposite ends thereof in the second directional D2. The first slits 23a are not formed at the opposite ends of the first exposed portion 23 in the second directional D2. Accordingly, stress at the joint generated during charging and discharging can be reduced.

SECONDARY BATTERY

Resumen de: US20260341678A1

A secondary battery includes a positive electrode, a negative electrode, and an electrolyte. The negative electrode contains a negative electrode active material. The negative electrode active material contains a silicon-containing material and a graphite material. The single particle fracture strength of the graphite material is in a range of 10 to 40 MPa, and the single particle fracture strength of the silicon-containing material is in a range of 350 to 550 MPa. A secondary battery having a high capacity retention rate after charge-discharge cycles can be thus provided.

CURRENT COLLECTOR FOR AN ELECTROCHEMICAL DEVICE FOR STORING OR GENERATING ELECTRICAL POWER

Resumen de: US20260341740A1

The invention relates to a current collector for an electrical power storage system or electricity generation system comprising an electronically conductive substrate, an electrically non-conductive polymer matrix, and carbon nanotubes. These nanotubes comprise a first end attached to the surface of the electronically conductive substrate and electrically connected to the latter, as well as a second end, opposite the first end, capable of collecting the current from an electrode, so as to create on the surface of the electronically conductive substrate a layer comprising a plurality of collection regions, which are electrically insulated from one another by intermediate zones of the electrically non-conductive polymer matrix. Each collection region comprises a plurality of the carbon nanotubes, and the set of second ends of the carbon nanotubes in each collection region protrudes beyond the surface of the electrically non-conductive polymer matrix.

CATHODE ACTIVE MATERIAL AND SECONDARY BATTERY COMPRISING SAME

Resumen de: US20260341727A1

The present invention provides a cathode active material that includes a core containing a transition metal oxide, a first surface portion formed outward from the interface of the core, and a second surface portion formed inward from the interface of the core, wherein both the first and second surface portions contain Si. The invention also provides a secondary battery that includes this cathode active material.

METHOD FOR RECOVERING VALUABLE METAL

Resumen de: US20260337717A1

To provide a method whereby a valuable metal can be efficiently recovered from a waste lithium-ion battery, the present invention is a method for recovering a valuable metal from a waste lithium-ion battery, and comprises an oxidation roasting step S3 for performing oxidation roasting treatment of a raw material that includes a waste lithium-ion battery, and a reduction step S4 for reducing a resultant oxidation roasted product in the presence of carbon. The present invention is characterized in that dust in an exhaust gas that is generated in the oxidation roasting step S3 is subjected to heat treatment at no less than 600 °C but less than 1000 °C to perform recovery, and at least a portion of the recovered heat-treated dust is added to material to be treated in the reduction step S4. The temperature of heat treatment of the dust is preferably no less than 900 °C but less than 1000 °C.

BINDER COMPOSITION FOR SECONDARY BATTERY

Resumen de: US20260341717A1

An aqueous emulsion composition useful as a binder for a non-aqueous battery electrode is provided. The composition includes a copolymer and an anionic surfactant that includes a sulfonate group or acid or salt form thereof. The anionic surfactant is not polymerizable with the copolymer. The copolymer includes as polymerized monomers: an ethylenically unsaturated ionic monomer including a phosphate or phosphonate group or salt or acid forms thereof; an ethylenically unsaturated ionic monomer including a sulfonate group or salt or acid forms thereof; a non-ionic monoethylenically unsaturated monomer; optionally an ethylenically unsaturated ionic monomer including a carboxylate group or salt or acid or anhydride form thereof; and optionally a monomer having at least two ethylenic unsaturations. A slurry composition including the aqueous emulsion composition and an active material is also provided.

DISCONNECTION DETECTION DEVICE AND BATTERY MONITORING DEVICE

Resumen de: US20260338876A1

A disconnection detection device includes, in a battery including battery cells connected in series, each of which connected in parallel to a discharge circuit that includes an electronic switch, a voltage detection circuit detecting a cell voltage of the battery cell, a CR low-pass filter provided in each of wirings connecting the battery cell to the voltage detection circuit, and a control unit performing equalization discharge of the discharge circuit and detecting the disconnection of the wiring based on the cell voltage, in which the electronic switch has a protection function for prohibiting transition to an ON state, and the control unit performs electricity removal of electric charges accumulated in the CR low-pass filter by operating any one of a pair of the electronic switches related to a pair of the adjacent battery cells, and detects the disconnection of the wiring based on the cell voltage after the electricity removal.

SILICON-CARBON NEGATIVE ELECTRODE MATERIAL AND PREPARATION METHOD THEREOF AND APPLICATION THEREOF

Resumen de: US20260341711A1

A silicon-carbon negative electrode material and a preparation method thereof and an application thereof. The preparation method includes the following steps: conveying a silicon powder, a polyoxypropylene-polyoxyethylene copolymer and an organic solvent to a nitrogen-blanketed seal tank; dispersing same to obtain a first slurry; subjecting the first slurry to an aging treatment, a coarse grinding treatment and a fine grinding treatment to obtain a fourth slurry; mixing the fourth slurry and an organic carbon source; and subjecting the mixture to a dispersion treatment, a spray drying treatment and a sintering treatment to obtain a silicon-carbon negative electrode material. Through specific processes such as dispersion treatment, aging treatment, coarse grinding treatment and fine grinding treatment, a silicon-carbon negative electrode material with small particle size and narrow particle size distribution may be obtained, thereby improving cycling stability of a battery assembled with the silicon-carbon negative electrode material.

LIQUID COOLING PLATE ASSEMBLY, SERVER AND DATE CENTER

Resumen de: US20260343797A1

The present disclosure provides a liquid cooling plate assembly, a server, and a data center. The liquid cooling plate assembly includes: a cooling plate and a cover body, the cooling plate has a cavity for accommodating coolant and an interface for connecting to a liquid cooling pipe, the interface is in communication with the cavity, the cooling plate further includes a recess, and the interface is located in the recess; and the cover body covers at a location of the recess, and forms an accommodating space for accommodating an overflow liquid with the cooling plate. By the present disclosure, the problem of liquid leakage damage in a liquid cooling solution in the related art is solved.

ELECTRODE SHEET MARKING SYSTEM AND METHOD

Resumen de: US20260340812A1

An electrode sheet marking system includes an image acquisition device and a processing device. The image acquisition device is configured to perform image acquisition on an electrode sheet roll in an unwinding process to obtain a current image frame. The processing device is communicatively coupled to the image acquisition device and is configured to: detect the current image frame, and under a condition that the positioning mark is detected in the current image frame, determine a marking moment of a target electrode sheet based on an acquisition moment of a reference image frame corresponding to the current image frame, where the target electrode sheet is an electrode sheet that is distinguished by the detected positioning mark, and the marking moment is a moment at which a marking device is triggered to mark the target electrode sheet.

CYLINDRICAL LITHIUM-ION BATTERY

Resumen de: US20260341793A1

Provided is a cylindrical lithium-ion battery, which comprises a cathode, an anode, and a non-aqueous electrolyte. The anode comprises an anode material layer containing an anode active material, and the anode active material includes a silicon-based material. The non-aqueous electrolyte comprises a non-aqueous organic solvent and lithium salts. The non-aqueous organic solvent comprises a chain carbonate containing dimethyl carbonate, and the lithium salts comprise LiPF6 and a lithium fluorosulfonylimide. The cylindrical lithium-ion battery meets the following condition: 0.05≤(100−D)×F/S≤8.75, with 50≤D≤75, 0.012≤F≤1, and 5≤S≤20. The cylindrical lithium-ion battery provided by the present application can effectively improve the rate capability, room-temperature cycle performance, and high-temperature storage performance of cylindrical lithium-ion batteries, thereby improving their service lives.

NEGATIVE ELECTRODE ACTIVE MATERIAL, SECONDARY BATTERY, AND ELECTRONIC DEVICE

Resumen de: US20260341707A1

A negative electrode active material includes graphite, where Dn10, Dv50, and Dv90 of the negative electrode active material satisfy: D=(Dv90−Dn10)/Dv50, and 0.8≤D≤1.5. The Dn10 of the negative electrode active material is 1 μm to 5 μm. In an X-ray diffraction pattern of the negative electrode active material, a peak intensity ratio of a characteristic peak C004 to a characteristic peak C110 is I. The negative electrode active material satisfies: 2≤I/D≤4. The negative electrode active material can be used to improve the cycling performance of the secondary battery.

ELECTRODE ASSEMBLY, BATTERY CELL, BATTERY AND ELECTRICAL APPARATUS

Resumen de: US20260341921A1

The present application provides an electrode assembly, a battery cell, a battery and an electrical apparatus. The electrode assembly includes a main body part, a first tab and a second tab. The main body part is cylindrical. The polarities of the first tab and the second tab are opposite, the first tab and the second tab are arranged at the same end of the main body part along an axial direction of the main body part, and the electrical conductivity of the first tab is smaller than the electrical conductivity of the second tab. Along the axial direction of the main body part, the first tab has a first surface away from the main body part, and the second tab has a second surface away from the main body part, the area of the first surface being larger than the area of the second surface.

A CYLINDRICAL SECONDARY CELL COMPRISING AN INCLINED ENCLOSURE AND A LID

Resumen de: US20260341858A1

This disclosure presents a cylindrical secondary cell (1) comprising a cylindrical enclosure (2) comprising a first enclosure end (2a), a second enclosure end (2b) and an enclosure sidewall (2c) extending between the enclosure ends (2a, 2b), wherein at least one enclosure end (2b) is open. The cell (1) further comprises a lid (10) to be attached radially internally to the cylindrical enclosure (2) at the open enclosure end (2b). An end section (2ce) at the open enclosure end (2b) of the enclosure sidewall (2c) extends non-parallel to the remaining enclosure sidewall (2c). The lid (10) comprises a flange (10f) that, when attached to the cylindrical enclosure (2), extends non-parallel to the enclosure sidewall (2c) to match the end section (2ce). Further, a method of manufacturing a cylindrical secondary cell is presented.

BIPOLAR PLATE, BIPOLAR PLATE SYSTEM, END PLATE, AND FUEL CELL

Resumen de: US20260341747A1

Bipolar plate (210) for a fuel cell (1), wherein the bipolar plate (210) extends in a longitudinal direction (L) and in a width direction (B), wherein the longitudinal direction (L) and the width direction (B) are in particular perpendicular to one another, wherein the bipolar plate (210) has a plurality of openings (240), wherein the openings (240) have an outer contour, wherein the outer contour of the openings (240) is formed in each case by a mounting opening (242) and at least one flow opening (244), wherein the mounting opening (242) forms a circular-segment-shaped part of the outer contour of the opening (240), and wherein the mounting opening (242) is designed to accommodate a fastener (9).

BATTERY CELL, BATTERY, AND ELECTRIC APPARATUS

Resumen de: US20260341920A1

A battery cell, a battery, and an electric apparatus are provided. The battery cell includes a housing and a first conductive layer. The housing includes a first wall portion, where the first wall portion has a first surface, the first wall portion is provided with a recess, and the recess has a side surface connected to the first surface. The first conductive layer is accommodated in the recess, and the first conductive layer is in contact with the side surface. The provision of the first conductive layer improves the electric field distribution in a region, provided with the recess, of the first wall portion, resulting in a more uniform electric field strength distribution, reducing the risk of tip discharge at a connection position between the side surface and the first surface in a high-voltage environment, and improving the reliability of the battery cell.

PRE-LITHIATED AND CARBON-ENCAPSULATED SILICON-BASED ANODE MATERIAL AND METHOD FOR PREPARING USING PHOTOELECTROMAGNETIC ENERGY

Resumen de: US20260341670A1

A method for preparing an anode material for a lithium secondary battery using pre-lithiation and photoelectromagnetic energy irradiation, and an anode material for a lithium secondary battery as prepared by the method are disclosed. The method includes mixing an active material, a polymer and a lithium salt with each other in a solvent to produce a liquid mixture; converting the liquid mixture into liquid droplets and drying the droplets into powders; and applying photoelectromagnetic energy.

COMPOSITE ELECTRODE SHEET AND PREPARATION METHOD THEREOF, BATTERY CELL AND PREPARATION METHOD THEREOF

Resumen de: US20260341738A1

A composite electrode sheet and a preparation method thereof, and battery cells and a preparation method thereof are provided. The composite electrode sheet includes a composite current collector, a positive electrode material layer, and a negative electrode material layer. The composite current collector includes an insulating layer, a positive electrode conductor layer, and a negative electrode conductor layer; a first surface of the insulating layer is provided with the positive electrode conductor layer, and a second surface of the insulating layer is provided with the negative electrode conductor layer; the positive electrode material layer is arranged on a surface, away from the insulating layer, of the positive electrode conductor layer; the negative electrode material layer is arranged on a surface, away from the insulating layer, of the negative electrode conductor layer.

BATTERY PACK

Resumen de: US20260341914A1

A battery pack includes a pack housing, and at least one battery assembly accommodated in the pack housing. The battery assembly includes a first cell stack and a second cell stack in each of which a plurality of battery cells are stacked, and a busbar assembly electrically connecting the plurality of battery cells to each other. The busbar assembly includes a first coupling portion coupled to the first cell stack, a second coupling portion coupled to the second cell stack, and a connection portion connecting the first coupling portion and the second coupling portion to each other.

LITHIUM SECONDARY BATTERY

Resumen de: US20260341705A1

A lithium secondary battery includes a cathode including a cathode current collector and a cathode active material layer disposed on at least one surface of the cathode current collector, the cathode active material layer including a cathode active material including first cathode active material particles, each of which has a single particle shape; an anode facing the cathode; and a non-aqueous electrolyte including a non-aqueous organic solvent that contains a fluorine-based organic solvent, a lithium salt and an additive.

STRUCTURAL COMPOSITES WITH ELECTROMAGNETIC COMPATIBILITY FOR BATTERY ENCLOSURES

Resumen de: US20260343837A1

A method for making a composite battery enclosure that has electromagnetic shielding properties. The method includes a step for forming a liquid mixture for imparting electromagnetic shielding properties to the enclosure. The liquid mixture is formed by mixing conductive filler or a blend of fillers with a curable material or resin. The conductive filler mixture is applied to fibers of a composite blank to prepare a pre-form composite. The pre-form composite is molded under pressure to form a component of or the composite battery enclosure. Molded components of the composite battery enclosure include a core or composite cover.

ALUMINUM-SILICON-PLATED STEEL PLATE AND THERMOFORMED COMPONENT, AND MANUFACTURING METHODS THEREFOR

Resumen de: US20260337424A1

Disclosed is an aluminum-silicon-plated steel plate with a coating, its manufacturing method and a thermoformed component prepared therefrom. The aluminum-silicon plated steel plate with a coating comprises a steel substrate and an aluminum-silicon plating plated on the surface of the steel substrate, wherein the surface of the aluminum-silicon plating is further coated with a coating, wherein the coating contains C, H, O, N and Si and does not contain P, and the content of Si in the coating is 10-1000 mg/m2.

EXPLOSION-PROOF VALVE OF BATTERY AND BATTERY

Resumen de: US20260341890A1

The present invention discloses an explosion-proof valve of a battery and a battery, belonging to the technical field of energy storage devices. The explosion-proof valve is an integrally formed disk structure, and comprises, from the outside to the inside, a welding section, a rupture section, and a reinforcement section connected together, a closed rupture score line being arranged on the rupture section, characterized in that: several reinforcement ribs are arranged on the reinforcement section, two ends of the reinforcement ribs being connected to the rupture score line, and a thickness of the reinforcement ribs being greater than a thickness of the rupture score line. A battery installed with the aforementioned explosion-proof valve has an explosion-proof valve activation pressure reaching 0.65-0.95 MPa.

ELECTRONIC DEVICE COMPRISING HEAT DISSIPATION STRUCTURE

Resumen de: US20260343820A1

The present disclosure relates to an electronic device comprising a heat dissipation structure. The electronic device may comprise: a bracket comprising a first area, a second area partitioned from the first area, and a heat dissipation area extendedly formed from a portion of the first area up to a portion of the second area; a circuit board comprising a heating source and disposed in the first area; a battery disposed in the second area; a vapor chamber disposed in the heat dissipation area and, in order to provide a transfer path for heat generated from the heating source, comprises a first part disposed so as to face the heating source, and a second part disposed so as to face the battery; and a filling member coated between the second area and the battery in order to transfer the heat dissipated from the vapor chamber to the battery, wherein the vapor chamber has a buffer area formed at an edge area thereof in order to receive the filling member.

CHARGE/DISCHARGE CIRCUIT, CHARGE/DISCHARGE SYSTEM, AND CHARGE/DISCHARGE CONTROL METHOD

Resumen de: US20260336475A1

A charge/discharge control method includes controlling, using a charge/discharge enable signal, a switch module and a charge-discharge switching module of a charge/discharge circuit to perform an action to form alternately switching charge loop and discharge loop in the charge/discharge circuit. A waveform of the alternating current includes at least one of a triangular waveform, a quasi-triangular waveform, a sinusoidal waveform, or a quasi-sinusoidal waveform.

ELECTROCHEMICAL REDUCTION OF HALOGENATED COMPOUNDS COMPRISING A SULFUR PENTAHALIDE GROUP

Resumen de: US20260341745A1

Systems, articles, and methods directed to electrochemical systems (e.g., batteries) and the electrochemical reduction of halogenated compounds are generally described. In certain embodiments, the halogenated compound comprises at least one sulfur pentahalide (e.g., pentafluoride) group associated with a conjugated system.

Negative Electrode And Secondary Battery Including The Negative Electrode

Resumen de: US20260341724A1

Provided is a negative electrode including a negative electrode active material layer, wherein the negative electrode active material layer includes a negative electrode active material, a binder, a conductive agent, and a dispersant, wherein the conductive agent includes a carbon nanotube structure in which a plurality of single-walled carbon nanotube units are bonded side by side, the carbon nanotube structure has an average length of 1 μm to 20 μm, and QBR according to Equation 1 is in a range of 1 to 1.75QBR=Bs/Bf  Equation 1

UNDERBODY FOR ELECTRIC VEHICLES HAVING WATER TANK

Resumen de: US20260341899A1

An underbody for a vehicle can include a receiving portion depressed upwards by a predetermined depth, the receiving portion being configured to receive a battery pack. A first liquid tank is mounted in an upper part of the receiving portion, the battery pack including at least one battery module is located under the first liquid tank, and the first liquid tank has both a function of cooling the battery pack and a fire extinguishment function.

BATTERY PACK HAVING FIXING DEVICE USING MAGNETIC FORCE, MANUFACTURING METHOD THEREOF, METHOD FOR REPLACING BATTERY CELL OF BATTERY PACK

Resumen de: US20260341882A1

A battery pack including a plurality of battery cells in a battery pack housing; a fixing unit in the battery pack housing to fix the plurality of battery cells using a magnetic force, and a busbar assembly to electrically connect the plurality of battery cells. The fixing unit includes a plurality of first members respectively attached and coupled to the battery cells by the magnetic force, a second member attached and coupled to the plurality of first members by the magnetic force. The busbar assembly includes a base busbar patterned and formed on a surface of the plurality of first members and a surface of the second member; and a plurality of electrode contact ends patterned and formed on a lower surface of the plurality of first members. The electrode contact ends contact respective electrodes of the battery cells and are connected to the base busbar.

COPPER ALLOY FILM WITH HIGH STRENGTH AND HIGH CONDUCTIVITY

Resumen de: US20260337728A1

A method of forming a component can include electrochemically depositing a metallic material onto a carrier component to a thickness of greater than 50 microns. The metallic material can include crystal grains and at least 90% of the crystal grains can include nanotwin boundaries. The metallic material can include a Copper-Silver alloy (Cu—Ag) with between about 0.5-2 at %-Ag.

NONAQUEOUS ELECTROLYTE SOLUTION FOR BATTERIES, LITHIUM SECONDARY BATTERY PRECURSOR, METHOD FOR PRODUCING LITHIUM SECONDARY BATTERY, AND LITHIUM SECONDARY BATTERY

Resumen de: US20260341788A1

A non-aqueous electrolytic solution for a battery, the solution containing an additive A as the following compound (I), and a specified additive B, in which a content of the additive A is from more than 0.01% by mass to less than 0.5% by mass with respect to a total amount of the non-aqueous electrolytic solution for a battery. Each R11 independently represents a fluoro group (—F), a hydrocarbon group having from 1 to 8 carbon atoms, optionally containing a fluoro group (—F) as a substituent, or a fluorocarbon group having from 1 to 8 carbon atoms, and h represents an integer from 0 to 4.

Nonaqueous Lithium Electricity Storage Element

Resumen de: US20260341604A1

The present disclosure provides a nonaqueous lithium electricity storage element having high high-temperature cycle durability. The nonaqueous lithium electricity storage element comprises a positive electrode including a positive-electrode active material layer, a negative electrode, a separator, and a nonaqueous electrolytic solution containing lithium ions. The positive-electrode active material layer comprises a positive-electrode active material and an alkali-metal compound. The negative electrode includes a negative-electrode active material layer, the surface of which, when photographed in the state of being not exposed to the air with a scanning electron microscope at a magnification of 100 diameters, gives a secondary-electron image. Binarizing the pixels of the secondary-electron image by lightness gives an image in which a light region and a plurality of dark regions corresponding to deposits formed on the surface of the negative-electrode active material layer are present.

EVM CATHODE BINDERS FOR BATTERY CELLS USING y-VALEROLACTONE AS PROCESSING SOLVENT

Resumen de: US20260341718A1

The invention relates to a polymer comprising or essentially consisting of monomer units derived from ethylene, vinylacetate and optionally, a termonomer selected from glycidyl methacrylate, vinyl methacrylate, and maleic anhydride, wherein the weight content of monomer units derived from vinylacetate is greater than 50 wt.-%, relative to the total weight of the polymer. The polymer is useful for manufacturing a cathode for a battery cell. The invention further relates to a cathode of a battery cell comprising the polymer as well as to a composition comprising the polymer and γ-valerolactone.

BATTERY PACK AND VEHICLE INCLUDING THE SAME

Resumen de: US20260341893A1

A battery pack configured to ensure structural stability even when a thermal event occurs, and a vehicle including the same are provided. The battery pack according to an aspect of the present disclosure includes: a battery cell; a pack housing accommodating the battery cell within a cell accommodation portion and having a venting path including a first path and a second path composed of two layers in communication with the cell accommodation portion at a side and a lower part, respectively; and a cooling module disposed on the lower part of the pack housing and configured to cool a venting gas or flame discharged from the battery cell and introduced into the second path.

BATTERY MANAGEMENT APPARATUS AND OPERATING METHOD THEREOF

Resumen de: US20260341807A1

A battery management apparatus may include a comparator configured to compare a voltage of a battery cell with a first reference voltage, a switching circuit configured to set a path in which the battery cell is electrically connected to an impedance calculation unit through a first path or a second path, based on a comparison result of the comparator, and the impedance calculation unit configured to calculate an impedance of the battery cell based on a first voltage applied through the first path or a second voltage applied through the second path.

BATTERY DEVICE AND ELECTRIC DEVICE

Resumen de: WO2026222591A1

Provided in the embodiments of the present disclosure are a battery device and an electric device. The battery device comprises a case assembly, a thermal management assembly and a battery assembly. The battery assembly comprises a plurality of battery layers stacked in the direction of height, and the plurality of battery layers are disposed in the case assembly. The thermal management assembly comprises heat exchange members, and the heat exchange members are disposed between the plurality of battery layers. Each heat exchange member comprises at least two heat exchange plates, which are stacked to form at least one medium flow channel; and the at least one medium flow channel is configured to circulate a heat exchange medium, and the heat exchange medium is configured to perform heat exchange with the plurality of battery layers. At least one of the heat exchange plates has a protruding portion, and the medium flow channel is formed inside the protruding portion.

Isolationswiderstandsmessung in einem Batteriesystem

Resumen de: DE102025116179A1

Elektrische Beschaltung (100) zur Isolationswiderstandsmessung eines ersten parasitären Isolationswiderstands Riso,pos(112), angeordnet zwischen einer positiven Klemme HV+(120) und einer Niederspannungsmasse LVGND(102) und eines zweiten parasitären Isolationswiderstands Riso,neg(114), angeordnet zwischen der negativen Klemme HV-(122) und der Niederspannungsmasse LVGND(102) mit Hilfe einer Batterie. Die elektrische Beschaltung (100) weist die Niederspannungsmasse LVGND(102), eine Batteriespannung UBatt(104), einen Spannungsteiler (109) mit einem ersten Widerstand R1(108.1) und einem zweiten Widerstand R2(108.2) und einer Spannungsteilerspannung Uiso,pos(116) auf, welche derart angeordnet sind, dass eine Messung eines Spannungsabfalls zwischen der positiven Klemme HV+(120) der Batterie und der Niederspannungsmasse LVGND(102) durchführbar ist, ein bekannter Widerstand R3(110), welcher temporär zwischen einer negativen Klemme HV-(122) der Batterie und der Niederspannungsmasse LVGND(102) zuschaltbar ist und einen ersten Schalter S1(118.1) und einen zweiten Schalter S2(118.2). Der erste Schalter S1(118.1) und der zweite Schalter S2(118.2) sind zur Unterbrechung einer Isolation ansteuerbar.

BATTERY MODULE, AND BATTERY PACK AND VEHICLE INCLUDING SAME

Resumen de: WO2026225824A1

A battery module according to an embodiment of the present invention may comprise: a module case including an accommodation space; a cell assembly disposed in the accommodation space and configured by stacking a plurality of battery cells each having an electrode terminal; a bus bar assembly electrically connecting the electrode terminals; and an expansion member surrounding both side surfaces of the bus bar assembly and configured to expand at a predetermined temperature or higher.

SOLID ELECTROLYTE AND SHEET

Resumen de: WO2026224990A1

Provided are a solid electrolyte (19) and sheets (12, 15, 16) capable of reducing interface resistance. The solid electrolyte includes a coating film (22) and the average thickness of the coating film is 30 nm or less. The standard deviation of the thickness of the coating film is preferably 7 nm or less. An oxide-based solid electrolyte is given as an example of the solid electrolyte and a value obtained by dividing the abundance ratio of C by the abundance ratio of Li when a spectrum emitted from the surface of the solid electrolyte is measured by X-ray photoelectron spectroscopy is preferably 2.0 or less. The solid electrolyte may have a garnet-type crystal structure containing Li, La, Zr, and O. The sheets include the solid electrolyte.

CONTROLLERS FOR IMPLEMENTING A DIAGNOSTIC PROFILE FOR AN ELECTROCHEMICAL CELL ASSEMBLY, AND ASSOCIATED METHODS

Resumen de: US20260341815A1

A method for implementing a diagnostic profile for an electrochemical cell assembly includes (i) dividing a complete diagnostic profile for the electrochemical cell assembly into a plurality of diagnostic profile segments, the plurality of diagnostic profile segments including at least a first diagnostic profile segment and a second diagnostic profile segment, and (ii) controlling operation of the electrochemical cell assembly to implement each of the plurality of diagnostic profile segments such that at least the first diagnostic profile segment and the second diagnostic profile segment are implemented during different respective operating intervals of the electrochemical cell assembly.

PROCESS FOR RECOVERING LITHIUM FROM ENERGY STORAGE DEVICE MATERIALS, AND COMPOSITIONS THEREOF

Resumen de: US20260337041A1

A method of recovering lithium and/or metals from energy storage device materials is described. The method comprises forming a raw material mixture from energy storage device materials, reducing the raw material mixture to form a reduced mixture; and leaching the reduced mixture to form a leached mixture comprising a solid product and a liquid product, wherein the liquid product comprises lithium hydroxide and the solid product comprises metals.

ALL-SOLID-STATE BATTERY AND METHOD FOR MANUFACTURING ALL-SOLID-STATE BATTERY

Resumen de: WO2026225761A1

The present invention relates to an all-solid-state battery and, more specifically, comprises: a can assembly in which an all-solid-state battery cell is accommodated; and a cap assembly coupled to the can assembly, wherein the can assembly includes a lower body and an upper body on the lower body, the upper body includes a plate-shaped center part on which the all-solid-state battery cell is placed, and a sidewall part extending in a third direction from a side surface of the center part, the side wall part includes a reinforcing part formed inside the side wall part, and the reinforcing part includes protrusions protruding inward from the sidewall part, and recesses recessed outward from the sidewall part.

Power Tool Safety System

Resumen de: US20260339274A1

A power tool lockout or safety system is provided that includes a tool operational interlock based on an operator's PPE (personal protective equipment) status. If PPE is not detected, then the tool may be disabled. The system may provide a default disabled status or locked state of the tool. If appropriate PPE is detected, the system may convert the tool's status to enabled, allowing its operation.

MANUFACTURING METHOD OF SOLID ELECTROLYTE, SOLID ELECTROLYTE MANUFACTURED THEREFROM, AND SECONDARY BATTERY COMPOSING THE SAME

Resumen de: US20260341783A1

The present disclosure relates to a manufacturing method of a solid electrolyte, a solid electrolyte manufactured therefrom, and a secondary battery including the same, wherein the manufacturing method of a solid electrolyte according to an aspect may include: preparing a solid electrolyte precursor; and controlling a particle diameter of the solid electrolyte precursor, wherein the controlling the particle diameter may be performed at a temperature of 0 °C or lower.

POUCH-TYPE BIPOLAR SOLID-STATE BATTERY MODULE

Resumen de: US20260341798A1

A pouch-type battery module includes M parallel-connected battery cell cores each including anode electrodes, cathode electrodes, separators, cathode current collectors, and anode current collectors arranged in a stack and connected in parallel, where M is an integer greater than one. First and second external tabs are connected to the anode current collectors and the cathode current collectors, respectively, of the M parallel-connected battery cell cores. M-1 bipolar laminated films are arranged between adjacent ones of the M parallel-connected battery cell cores. First and second outer laminated films arranged adjacent to outer ones of the M parallel-connected battery cell cores and encapsulating the M parallel-connected battery cell cores with the first and second external tabs connected together and extending from opposite sides thereof. The pouch-type battery module can be a liquid-type, semi-solid-state, or all-solid-state battery.

ELECTRODE ASSEMBLY AND SECONDARY BATTERY HAVING THE SAME

Resumen de: US20260341931A1

An electrode assembly is provided including: a first electrode plate including a first substrate and a first active material layer disposed on the first substrate, wherein the first substrate includes a substrate horizontal edge corresponding to a winding start end of the first electrode plate and parallel to a winding axis, a substrate vertical edge perpendicular to the substrate horizontal edge, and a substrate corner between the substrate horizontal edge and the substrate vertical edge; a second electrode plate including a second substrate and a second active material layer disposed on the second substrate; a separator disposed between the first and second electrode plates; and a protection tape attached to the substrate corner, wherein at least a portion of the substrate horizontal edge other than the substrate corner remains exposed from the protection tape. A secondary battery including the electrode assembly is further provided.

METHOD AND APPARATUS FOR PREDICTING DEFECTS IN SECONDARY BATTERIES

Resumen de: US20260341814A1

The present disclosure provides a method for predicting defects in a secondary battery. The method includes acquiring first data associated with a first secondary battery that has progressed up to a specific manufacturing process among a plurality of manufacturing processes for manufacturing the secondary battery, acquiring second data associated with the first data, generating synthetic data associated with the first secondary battery based on the first data and the second data, and predicting whether the first secondary battery is defective based on the synthetic data using a machine learning model, wherein the first data includes data up to the specific manufacturing process, and the second data includes data after the specific manufacturing process.

SILICON-BASED ANODE MATERIAL, ANODE STRUCTURE FOR LITHIUM-ION BATTERIES, AND LITHIUM-ION BATTERY

Resumen de: US20260341689A1

A silicon-based anode material, an anode structure for lithium-ion batteries, and a lithium-ion battery are provided. The material includes a non-metal-doped silicon carbon particle and an aluminum oxide coating layer. The silicon carbon particle is composed of a mixture of SiOx and carbon, where 0≤x<1, and a surface thereof is coated with the aluminum oxide coating layer. In the Raman spectrum of the material, a ratio of characteristic peak areas of aluminum oxide to that of silicon is greater than 1.2%. The aluminum oxide coating layer provides excellent water resistance, thereby improving the capacity stability of the lithium-ion battery. In addition, the aluminum oxide coating layer can effectively protect the silicon carbon particle, reduce corrosion by the electrolyte, and significantly improve the cycle life of the silicon-based anode material, while effectively suppressing volume expansion and improving the overall performance of the battery.

APPARATUS AND METHOD FOR DIAGNOSING A BATTERY

Resumen de: US20260341084A1

Disclosed are a battery diagnosing apparatus and a method thereof. The battery diagnosing apparatus includes a communication device that receives time-series data associated with a condition of a battery from a vehicle, and a controller that divides the time-series data into unit window blocks, divides time-series data included in respective unit window blocks into data segments associated with operating states of the vehicle, inputs the data segments into an artificial intelligence model trained to classify the data segments as normal or abnormal, and diagnoses whether the battery is abnormal based on classification of the data segments by the artificial intelligence model.

LITHIUM-ION RECHARGEABLE BATTERY WITH REDUCED INTERNAL RESISTANCE

Resumen de: WO2026224240A1

The present invention relates to a battery comprising at least one elementary cell, the elementary cell successively comprising a metal anode current collector, an anode layer, at least one layer of an electrolyte material or of a separator impregnated with an electrolyte, a cathode layer, and a metal cathode current collector, characterised in that at least one of the anode current collector and the cathode current collector comprises a stainless steel comprising more than 30% by weight of molybdenum. The invention further relates to a method for producing same, and to the use of a stainless steel comprising more than 3.0% by weight of molybdenum for producing a current collector of a battery.

BATTERY MODULE HAVING THERMISTOR COUPLING STRUCTURE AND DEVICE INCLUDING SAME

Resumen de: WO2026225717A1

A battery module according to an embodiment of the present invention includes: a battery cell stack in which a plurality of battery cells are stacked; a bus bar frame covering one of the front and rear surfaces of the battery cell stack; a thermistor bridge disposed on the bus bar frame and extending toward the battery cell stack; a flexible printed circuit board (FPCB) coupled to the thermistor bridge; and a thermistor disposed on the FPCB, wherein the FPCB includes a first portion on which the thermistor is seated and a second portion extending in a direction intersecting the first portion, and the second portion may be coupled to the thermistor bridge.

POLYMER MATRIX IMMOBILIZED CARBON NETWORK FOR ELECTRICAL DISCHARGE OF ELECTROCHEMICAL DEVICES

Resumen de: US20260335950A1

Disclosed herein is a method of discharging a battery by providing a composition having a solution of a crosslinked or crosslinkable polymer and a solvent and conductive carbon particles; and applying the composition to a battery in contact with an anode and a cathode to form an electrical connection from the anode to the cathode.

Prismatische Batteriezelle

Resumen de: DE102025115972A1

Batteriezelle (100) für eine Hochvoltbatterie, mit einem Batteriezellgehäuse (102) in welchem ein galvanisches Element (104) angeordnet ist, dadurch gekennzeichnet, dass in dem Batteriezellgehäuse (102) eine vom galvanischen Element (102) separierte Kammer (106) vor-handen ist, in der ein Zellmanagementcontroller (108) angeordnet ist, der eingerichtet ist, das im Batteriezellgehäuse (102) ebenfalls angeordnete galvanische Element (104) zu überwachen.

NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY

Resumen de: WO2026225365A1

A non-aqueous electrolyte secondary battery (10) comprises: an electrode body (14) in which a positive electrode (11) and a negative electrode (12) are wound with a separator (13) interposed therebetween; and a non-aqueous electrolyte, and is characterized in that the negative electrode (12) contains a silicon-containing material as a negative electrode active material, the molar ratio of silicon contained in the silicon-containing material to the total number of moles of the negative electrode active material is 0.6 mol% to 21 mol% inclusive, the separator 13 includes a first separator 13A facing a winding inner surface 12A of the negative electrode 12 and a second separator 13B facing a winding outer surface 12B of the negative electrode 12, and, when the elongation rate of the first separator is X1 and the elongation rate of the second separator is X2, X1 and X2 satisfy the relationship X1≠X2.

THERMAL MANAGEMENT METHOD AND APPARATUS FOR ENERGY STORAGE DEVICE, AND STORAGE MEDIUM AND BATTERY MANAGEMENT SYSTEM

Resumen de: WO2026222723A1

The present application belongs to the technical field of energy storage, and particularly relates to a thermal management method and apparatus for an energy storage device, and a computer-readable storage medium and a battery management system. The method comprises: acquiring an individual operating parameter of each battery in a target battery cluster, wherein the target battery cluster is any battery cluster in an energy storage device; on the basis of the individual operating parameter of each battery in the target battery cluster, determining an overall operating parameter of the target battery cluster; and when the overall operation parameter of the target battery cluster meets a preset direction-change condition, controlling a target direction-change apparatus in the energy storage device to execute a direction-change operation, wherein the target direction-change apparatus is a direction-change apparatus corresponding to the target battery cluster, and is used for changing the flow direction of a cooling liquid corresponding to each battery in the target battery cluster. By means of the present application, the temperature uniformity of a battery can be effectively improved, thereby improving the performance of an energy storage device.

NEGATIVE ELECTRODE AND POWER STORAGE DEVICE

Resumen de: WO2026225258A1

A negative electrode 12 comprises a current collector 34 and a protective layer 36 that is stacked on at least a part of the current collector 34. When the protective layer 36 is bisected in the stacking direction X of the current collector 34 and the protective layer 36, the protective layer 36 includes a first region 42 that is located on the current collector 34 side, and a second region 44 that is located on a side farther from the current collector 34 than the first region 42. The porosity of the second region 44 is higher than the porosity of the first region 42.

ALPHA-GLUCAN BINDERS FOR BATTERIES

Resumen de: WO2026226618A1

Provided is an electrode slurry comprising water, one or more conductive agents, and one or more binders including alpha-glucans or derivatives thereof, and compositions comprising such slurries. Also provided are electrodes comprising a current collector and an electrode layer, or batteries comprising an electrode layer, the electrode layer comprising one or more conductive agents and one or more binders including one or more alpha-glucans or derivatives thereof. Methods of preparation are also provided.

HYBRID THERMAL MANAGEMENT METHOD FOR BATTERY INTEGRATED RESIDENTIAL HEAT PUMP

Resumen de: US20260341847A1

An air conditioning system includes a vapor compression loop having a plurality of components including a compressor, at least one expansion device, a first heat exchanger, and a second heat exchanger. A working fluid is configured to circulate within the vapor compression loop. An electric energy storage device is selectively operable to supply power to a component of the air conditioning system. A thermal management system associated with the electric energy storage device. The thermal management system is fluidly connected to the vapor compression loop via a bypass conduit. The thermal management system includes a thermal storage device containing a thermal storage material. The thermal storage device is directly thermally coupled to the electric energy storage device.

POLYURETHANE ADHESIVE SYSTEM WITH ENHANCED METAL ADHESION

Resumen de: WO2026222683A1

Polyurethane adhesive composition, include an isocyanate-reactive component, including: one or more vegetable oil-based polyols; one or more polyether polyols; one or more hydroxyl-terminated prepolymers; an isocyanate component, including: one or more isocyanate-terminated prepolymers; one or more fillers; and one or more epoxidized cycloalkenyl silane treating agents. Methods include preparing a polyurethane adhesive composition, including: forming a curable mixture by combining an isocyanate-reactive component, the isocyanate component including: one or more vegetable oil-based polyols; one or more polyether polyols; one or more hydroxyl-terminated prepolymers; the isocyanate component, including: one or more isocyanate-terminated prepolymers; one or more fillers; and one or more epoxidized cycloalkenyl silane treating agents; applying the curable mixture to a first substrate; contacting the first substrate with a second substrate; and allowing the curable mixture to cure and form an adhesion between the first and second substrates.

BATTERY

Resumen de: WO2026225557A1

This battery comprises a negative electrode, a positive electrode, and an electrolyte. The negative electrode has a negative electrode active material layer and a coating film formed on the negative electrode active material layer. The coating film includes a first region and a second region having a higher molar concentration of sulfur than the first region. The first region is positioned between the negative electrode active material layer and the second region and has a higher molar concentration of boron than the second region.

Kühlsystem, Fahrzeug und Verfahren

Resumen de: DE102025116153A1

Die Erfindung betrifft ein Kühlsystem (100) für eine Traktionsbatterie (101) eines Fahrzeuges, zumindest umfassend einen Kühlkreislauf (102) mit mehreren Leitungsabschnitten, ein in dem Kühlkreislauf (102) befindliches Kühlmedium, die zu kühlende Traktionsbatterie (101), welche in den Kühlkreislauf (102) integriert ist, wenigstens einen Sensor (103) zum Messen der elektrischen Leitfähigkeit und/oder des elektrischen Widerstands des Kühlmediums, und wenigstens einen Sammelbehälter (104) zum Abscheiden von Verunreinigungen des Kühlmediums, dadurch gekennzeichnet, dass der wenigstens eine Sammelbehälter (104) im Kühlkreislauf (102) derart angeordnet und ausgeführt ist, dass flüssige Verunreinigungen mit einer geringeren spezifischen Dichte als das Kühlmedium in dem wenigstens einen Sammelbehälter (104) aufsteigen, und der wenigstens eine Sensor (103) in dem wenigstens einen Sammelbehälter (104) angeordnet ist, sodass die aufgestiegenen Verunreinigungen erfasst werden. Die Erfindung betrifft auch ein Fahrzeug sowie ein Verfahren zum Feststellen einer Verunreinigung des Kühlmediums in einem Kühlsystem (100).

SYSTEMS AND METHODS FOR LITHIUM IRON PHOSPHATE CATHODE REGENERATION

Resumen de: WO2026227007A1

Disclosed are materials, devices, systems and methods for lithium iron phosphate (LFP) cathode regeneration. In some examples, a method for regenerating a spent battery cathode material includes performing a pH-controlled hydrothermal treatment on a cathode material using an aqueous relithiation solution comprising at least one organic reducing agent and a first lithium source, wherein the at least one organic reducing agent and the first lithium source are selected such that a pH of the aqueous relithiation solution is in a range from 3 to 5.3; heating the cathode material at a first temperature, wherein the first temperature is sufficient to decompose a fluorine-containing binder; adding a second lithium source to the cathode material; and heating the cathode material at a second temperature, wherein the second temperature is higher than the first temperature.

DEVICE FOR THERMAL REGULATION OF A VEHICLE BATTERY PACK

Resumen de: WO2026223954A1

The invention relates to an electrical energy storage module (1) comprising electrical energy storage members (10), notably battery cells, and electrical connectors (2), the module being configured to be at least partially filled with dielectric fluid so as to at least partially immerse the storage members and the electrical connectors, each storage member being electrically connected to at least one other member by an electrical connector, the module comprising at least one electrically insulating separator (3) present between two electrical connectors, the separator being configured so as to prevent a short circuit by electrical contact between the connectors, notably when the various storage members are at least partially immersed in a dielectric fluid, while still allowing the circulation of the dielectric fluid in contact with the storage members and the electrical connectors.

COOLING LINE INTEGRATED BOX COVER FOR VEHICLE BATTERY PACK

Resumen de: US20260341840A1

A battery pack assembly includes: a battery module system including one or more cooling plates and a coolant port connected to the one or more cooling plates; and a battery pack enclosure configured to enclose the battery module system, the battery pack enclosure including an opening to access the battery module system and a box cover for the opening, wherein the box cover includes a cooling assembly including: a cooling line connector to connect to the coolant port, and a quick connector connected to the cooling line connector and configured to connect to an external line.

Anschlussvorrichtung zur Verbindung mit einer Wärmeübertragungseinrichtung, Wärmeübertragungseinrichtung mit einer Anschlussvorrichtung, Batteriegehäuse für eine Traktionsbatterie, Traktionsbatterie und ein Kraftfahrzeug mit einer Traktionsbatterie.

Resumen de: DE102025115699A1

Die Erfindung betrifft eine Anschlussvorrichtung (1) zur Verbindung, insbesondere stoffschlüssigen Verbindung, mit einer Wärmeübertragungseinrichtung (40), insbesondere einer Wärmeübertragungseinrichtung (40) innerhalb eines Batteriegehäuses, umfassend zumindest einen Anschluss (2) mit einer einen Anschlusskanal (3) bildenden Außenwandung (4) und mit einem Verbindungsabschnitt (5), wobei der Verbindungsabschnitt (5) zumindest eine den Verbindungsabschnitt (5) zumindest teilweise umlaufende Verbindungsrippe (6) mit wenigstens einer Verbindungsfläche (7) aufweist, und wobei der Verbindungsabschnitt (5) zumindest ein Verbindungsflächenelement (8) mit wenigstens einer Verbindungsfläche (9) aufweist, wobei die zumindest eine Verbindungsrippe (6) und/oder das zumindest eine Verbindungsflächenelement (8) dazu ausgebildet ist/sind, mit der Wärmeübertragungseinrichtung (40), insbesondere mit einem aus Folie ausgebildeten Außenwandbereich der Wärmeübertragungseinrichtung (40), fluiddicht, insbesondere stoffschlüssig, verbindbar zu sein, und wobei der Normalenvektor zumindest einer Verbindungsfläche (7) wenigstens einer Verbindungsrippe (6) und/oder einer Verbindungsfläche (9) wenigstens eines Verbindungsflächenelements (8) senkrecht zur Längsachse des Anschlusskanals (3) ausgerichtet ist/sind.

THERMAL EXCHANGE MODULE INTERFACE INCLUDING THERMALLY SHRINKABLE MATERIAL

Resumen de: US20260341839A1

A system for a motor vehicle may include a thermal exchange module configured to transfer heat between a component of the motor vehicle and a fluid. The thermal exchange module is fluidly coupled to a fluid channel via an interface including a thermally shrinkable material. A method is also disclosed.

SOLID ELECTROLYTE, POWER STORAGE DEVICE, AND METHOD FOR MANUFACTURING POWER STORAGE DEVICE

Resumen de: WO2026225602A1

Provided are a solid electrolyte with high alkali metal ion conductivity, a power storage device, and a method for manufacturing the power storage device. The solid electrolyte contains alkali metal ions and plastic crystals. The substance amount of the alkali metal ions is more than 10% of the substance amount of the plastic crystals. The plastic crystals include at least two types of cations, and at least one type of the cations is a cyclic cation having a cyclic structure.

NEGATIVE ELECTRODE AND POWER STORAGE DEVICE

Resumen de: WO2026225259A1

A negative electrode 12 comprises: a current collector 34; and a protective layer 36 laminated onto at least a portion of the current collector 34. When the protective layer 36 is bisected in the lamination direction X of the current collector 34 and the protective layer 36, the protective layer 36 includes a first region 42 located on the current collector 34-side and a second region 44 located farther from the current collector 34 than the first region 42. The porosity of the first region 42 is higher than the porosity of the second region 44.

CYLINDRICAL BATTERY

Resumen de: WO2026225394A1

Provided is a cylindrical battery (10) comprising: an electrode body (14) in which a positive electrode (11) and a negative electrode (12) are wound with a separator (13) interposed therebetween; a bottomed cylindrical outer can (20) that accommodates the electrode body (14); and a seal (30) that closes an open end of the outer can (20), wherein a strip-shaped tape (60) for fixing a winding terminal end is adhered to the outermost peripheral surface of the electrode body (14), the tape (60) includes a first tape (61) adhered to the seal (30) side and a second tape (62) adhered to a bottom surface (21) side of the outer can (20), the first tape (61) does not overlap a winding terminus end (11E) of the positive electrode in the radial direction of the electrode body (14), and the second tape (62) overlaps the winding terminus end (11E) of the positive electrode in the radial direction of the electrode body (14).

BATTERY DEVICE AND ELECTRIC DEVICE

Resumen de: WO2026222587A1

The present application belongs to the technical field of batteries. Disclosed are a battery device and an electric device. The battery device comprises a battery cell assembly and a thermal management component, wherein the battery cell assembly comprises a plurality of battery cells; the thermal management component comprises a temperature-equalizing portion and a heat exchange portion that are connected to each other; the temperature-equalizing portion is provided with a cavity for accommodating a capillary structure and a phase change material, and the heat exchange portion is provided with a flow channel for accommodating a heat exchange medium, the cavity and the flow channel being independent of each other; and the temperature-equalizing portion is in thermal conductive connection with the battery cells, and the temperature-equalizing portion is configured to transfer heat generated by the battery cells to the heat exchange portion. The battery device further comprises a case, the case has an accommodating cavity for accommodating the battery cell assembly, and the thermal management component is integrally formed as part of the case. The technical solution provided by the present application can improve the reliability of the battery device.

SYSTEMS AND METHODS FOR COOLANT CONNECTION FOR EXTERNAL LEAK MANAGEMENT FOR BATTERY PACKS

Resumen de: US20260341842A1

A system includes: a battery pack enclosure to enclose a battery system; a coolant port to extend from the battery system inside the battery pack enclosure to outside the battery pack enclosure; and a coolant line connector to connect to the coolant port outside the battery pack enclosure, the coolant line connector including: an injection molded member extending from outside of the battery pack enclosure to inside of the battery pack enclosure, the injection molded member extending in an inside of the coolant port.

System zur thermischen Sicherstellung einer in einem Fahrzeug verbauten Komponente

Resumen de: DE102025116205A1

Die vorliegende Offenbarung betrifft ein System (100) zur thermischen Sicherstellung einer in einem Fahrzeug verbauten Komponente (10), umfassend:- eine passive thermische Isolieranordnung (110), die die Komponente (10) umgibt, wobei die Komponente (10) weiter an ein fahrzeugseitiges Thermosystem (20) zur Temperaturregelung der Komponente (10) im Fahrbetrieb angebunden ist;- eine Absperrvorrichtung (120), die eingerichtet ist, um die Anbindung der Komponente (10) an das fahrzeugseitige Thermosystem (20) selektiv zu öffnen und zu schließen; und- eine Steuereinheit (130), die eingerichtet ist, um die Absperrvorrichtung (120) für ein Schließen der Anbindung anzusteuern, wenn wenigstens ein Sperrkriterium erfüllt ist, wobei das wenigstens eine Sperrkriterium einen Betriebszustand des Fahrzeugs und/oder eine Kühlmitteltemperatur des fahrzeugseitigen Thermosystems (20) betrifft.

Anschlussvorrichtung zur Verbindung mit einer Wärmeübertragungseinrichtung, Wärmeübertragungseinrichtung mit einer Anschlussvorrichtung, Batteriegehäuse für eine Traktionsbatterie, Traktionsbatterie und ein Kraftfahrzeug mit einer Traktionsbatterie.

Resumen de: DE102025115700A1

Die Erfindung betrifft eine Anschlussvorrichtung (1) zur Verbindung, insbesondere stoffschlüssiger Verbindung, mit einer Wärmeübertragungseinrichtung (50), insbesondere einer Wärmeübertragungseinrichtung (50) innerhalb eines Batteriegehäuses, umfassend einen ersten Anschlussvorrichtungsteil (2A) umfassend zumindest einen Anschluss (3) und zumindest ein Verbindungsmittel (4A, 4B, 4C), einen zweiten Anschlussvorrichtungsteil (2B) umfassend zumindest einen Anschluss (3) und zumindest ein Verbindungsmittel (4A, 4B, 4C), wobei das zumindest eine Verbindungsmittel (4A, 4B, 4C) des ersten Anschlussvorrichtungsteils (2A) mit dem zumindest einen Verbindungsmittel (4A, 4B, 4C) des zweiten Anschlussvorrichtungsteils (2B) ein Verbindungssystem (5) bildet und der erste Anschlussvorrichtungsteil (2A) und der zweite Anschlussvorrichtungsteil (2B) mittels des zumindest einen Verbindungssystems (5), insbesondere lösbar, miteinander verbindbar sind, sodass je ein Anschluss (3) des ersten Anschlussvorrichtungsteils (2A) mit einem Anschluss (3) des zweiten Anschlussvorrichtungsteils (2B) einen Anschlusskanal (6) bildet.

Nested Manifold

Resumen de: US20260341835A1

A manifold for distributing a fluid is disclosed. The manifold comprises a first fitting with a first end and a second end. The first end comprises a pipe interface with a first internal diameter, through which a fluid flows. The second end comprises a chamber in which the first internal diameter increases to a second internal diameter. The manifold further comprises a second fitting with an external surface which complements an inner surface of the chamber of the first fitting. A pipe interface with same internal diameter as the pipe interface of the first fitting. Wherein the external surface of the second fitting and the internal surface of the chamber form a distribution channel through which the fluid flows. Wherein the second fitting directs the fluid into the distribution channel.

HEAT INSULATING PAD FOR SECONDARY BATTERY, METHOD FOR MANUFACTURING SAME, AND ENERGY STORAGE DEVICE INCLUDING SAME