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Électrolytes polymériques eutectiques profonds à conductivité ionique unipolaire

Absstract of: FR3163491A1

Électrolytes polymères eutectiques profonds à conductivité ionique unipolaire Électrolyte polymérique eutectique à conductivité ionique unipolaire, dit encore SI PDEE, comprenant : - au moins un polymère dont la chaîne principale est formée à partir de monomères, M, en C2 à C20 éthyléniquement polymérisables avec au moins une, et de préférence plusieurs, unités monomériques de ladite chaîne principale étant porteuse(s) d’au moins un groupement anionique dit SI-, - au moins une espèce donneuse de liaison hydrogène, dite HBD, dans un rapport molaire SI-:HBD variant de 1:0,5 à 1:15, en particulier de 1:1 à 1:15 ; et - au moins un cation, X+, de métal alcalin.

Circuit de refroidissement pour une batterie pour un véhicule automobile électrique ou hybride rechargeable

Absstract of: FR3163492A1

Circuit de refroidissement pour une batterie pour un véhicule automobile électrique ou hybride rechargeable Circuit de refroidissement (1) comprenant une pluralité de branches (C1, C2, C3, C4, C5, C6) disposées en parallèles, et comprenant respectivement :- un premier raccord (6),- un port d’entrée (7), - un port de sortie (9), et- un deuxième raccord (10),le circuit étant caractérisé en que pour chacune des branches (C1, C2, C3, C4, C5, C6) :- le premier raccord (6) et/ou le port d’entrée (7), et/ou- le deuxième raccord (10) et/ou le port de sortie (9)présente une cavité de manière à délimiter un logement configuré pour accueillir un élément intermédiaire d’ajutage (11) présentant une section de passage (S) configurée pour calibrer le débit du fluide caloporteur, la section de passage (S) de l’élément intermédiaire d’ajutage (11) étant propre à chaque branche (C1, C2, C3, C4, C5, C6). Figure pour l’abrégé : Fig. 9

Procédé de détection de fuites et dispositif permettant la mise en œuvre d’un tel procédé

Absstract of: FR3163455A1

Titre : Procédé de détection de fuites et dispositif permettant la mise en œuvre d’un tel procédé L’invention concerne un procédé de détection de fuites dans un objet définissant au moins un volume interne, ledit procédé comprenant une étape de mise en pression/dépression d’un volume interne depuis une pression initiale, caractérisé en ce que le procédé comprend, simultanément à l’étape de mise en pression/dépression, une étape de surveillance permettant d’interrompre l’étape de mise en pression/dépression lorsque la pression/dépression instantanée est en dehors d’un intervalle de tolérance prédéterminé autour de ladite valeur de référence. Figure pour l’abrégé : Fig. 1

Boîtier de connexion électrique, batterie d’accumulateurs et véhicule automobile

Absstract of: FR3163495A1

L’invention concerne un boîtier de connexion électrique pour batterie d’accumulateurs, comportant une boîte (4) renfermant au moins un composant électrique et/ou électronique (8, 9, 10) et un système de refroidissement (13) configuré pour refroidir le composant électrique, caractérisé en ce que le système de refroidissement comporte une poche souple (14, 15) configurée pour contenir un fluide caloporteur et qui est placée en contact avec le composant électrique. L’invention concerne en outre une batterie d’accumulateurs équipée d’un tel boîtier et un véhicule automobile pourvue d’une telle batterie. Figure pour l’abrégé : Fig. 2

Bloc de batteries d’accumulateurs électriques.

Absstract of: FR3163497A1

Bloc (1) de batteries d’accumulateurs électriques de véhicules automobiles, ledit bloc (1) comprenant N cellules électrochimiques solides (25) longitudinales, chaque cellule (25) présentant deux bornes positive et négative ; caractérisé en ce qu’il comprend un casier (3) présentant une face avant et une face arrière opposées et une rangée de N logements (15) ordonnés de 1 à N, chaque logement présentant deux ouvertures opposées débouchant respectivement dans lesdites face avant et arrière dudit casier (3), et en ce que les N cellules (25) sont respectivement engagées dans les N logements, de façon que les deux bornes de chacune des cellules (25) s’étendent respectivement dans lesdites deux ouvertures opposées (17) de chacun desdits logements (15) pour pouvoir, d’une part raccorder électriquement alternativement deux à deux à partir du premier logement les bornes s’étendant dans les ouvertures (17) de la face avant dudit casier (3), et d’autre part raccorder électriquement alternativement deux à deux à partir du deuxième logement les bornes s’étendant dans les ouvertures (17) de la face arrière dudit casier (3) de manière à relier lesdites N cellules en série. Figure de l’abrégé : Figure 5

Etage d’empilement de dispositif électrochimique et dispositif électrochimique associé

Absstract of: FR3163500A1

L’invention concerne un étage (32) d’empilement (4) de dispositif électrochimique (2), comprenant une première couche (30) et une deuxième couche (30) s’étendant en regard l’une de l’autre, l’étage (32) étant caractérisé en ce qu’il comprend, en outre, au moins une fibre optique (14) formant un capteur thermique distribué, chaque fibre optique étant agencée au moins en partie entre la première couche (30) et la deuxième couche (32). Figure 1

Méthode de détermination d’une température cible de préconditionnement thermique d’une batterie d’un véhicule automobile

Absstract of: FR3163494A1

L’invention concerne une méthode de détermination d’une température cible de préconditionnement thermique d’une batterie (40) d’un véhicule automobile (2) au moyen d’une unité de gestion thermique (30), préalablement à une opération de charge de ladite batterie au moyen d’une borne de recharge. La température cible de préconditionnement est déterminée en fonction (i) d’informations relatives à l’opération de charge (temps de charge de l’opération de charge, état de charge de la batterie au début de l’opération de charge, puissance de charge de la borne de recharge utilisée lors de l’opération de charge), et (ii) d’un gain d’énergie net positif non nul défini comme la valeur obtenue en retranchant une énergie d’ajustement (énergie nécessaire à l’unité de gestion thermique pour atteindre la température cible) à un gain d’énergie de charge (gain en énergie récupérée par la batterie opérée à la température cible par rapport à l’énergie récupérée à une température initiale). Figure à publier avec l’abrégé : Fig.1

Batterie pour véhicule

Absstract of: FR3163493A1

La batterie comprend un boîtier externe délimitant : - un compartiment inférieur logeant un premier groupe de modules de batterie, le compartiment inférieur comprenant une plaque inférieure de refroidissement des modules munie d’un circuit inférieur pour le passage d’un liquide de refroidissement, et - un compartiment supérieur, disposé au-dessus du compartiment inférieur et logeant un deuxième groupe de modules de batterie, le compartiment supérieur comprenant une plaque supérieure de refroidissement des modules munie d’un circuit supérieur pour le passage de liquide de refroidissement. Le boîtier externe comprend : - un premier port inférieur (44) connecté au circuit inférieur (42) de refroidissement, - un premier port supérieur (54) connecté au circuit supérieur (52) de refroidissement, et la batterie comporte un conduit externe de raccordement, dit premier conduit externe (74), reliant le premier port inférieur (44) et le premier port supérieur (54). Figure pour l’abrégé : figure 4

Electrode négative pour batterie électrique incorporant un liant naturel

Absstract of: FR3163496A1

Electrode négative pour batterie électrique comprenant au moins un premier liant choisi parmi l’un des composés suivants : jaune d’œuf, blanc d’œuf, riz gluant, graines de lin ou un mélange de ceux-ci.

DETERMINING A CALENDRICAL CAPACITY LOSS OF A BATTERY CELL

Absstract of: WO2025256816A1

The invention proposes a method for determining a calendrical capacity loss ΔQ of a battery cell over a defined time range. The method is at least characterized by the following steps: - (S1) providing a first state of charge SOC1 at a start of the time range; - (S2) determining a second state of charge SOC2 at an end of the time range; - (S3) providing a state-of-charge-dependent expansion characteristic curve DSOC(SOC) (40); - (S4) providing an expansion characteristic curve Dl oss (ΔQ) (41) which is dependent on the capacity loss ΔQ; - (S5) detecting a change in expansion ΔD (42) of the battery cell between the start and end of the time range; and - (S6) determining the capacity loss ΔQ by means of the relationship ΔD = DSOC (SOC2) - DSOC(SOC1) + Dloss(ΔQ). The invention also relates to a production method for a battery cell.

FESTKÖRPERBATTERIE UND VERFAHREN ZUR HERSTELLUNG EINER FESTKÖRPERBATTERIE

Absstract of: DE102025122559A1

Eine Festkörperbatterie im Sinne der vorliegenden Offenbarung umfasst einen Elektrodenkörper und Stromsammlerstreifen, die mit dem Elektrodenkörper verbunden sind. Der Elektrodenkörper hat einen Positivelektrodenstromsammler, eine Positivelektrodenaktivmateriallage, eine Festelektrolytlage, eine Negativelektrodenaktivmateriallage und einen Negativelektrodenstromsammler, die entlang einer Laminierungsrichtung laminiert sind. Die Festelektrolytlage enthält eine Abstützung. Die Festelektrolytlage hat vorstehende Teile, die relativ zu den Endflächen der Positivelektrodenaktivmateriallage und der Negativelektrodenaktivmateriallage vorstehen. Die vorstehenden Teile sind so angeordnet, dass sie eine Endfläche der Positivelektrodenaktivmateriallage und/oder der Negativelektrodenaktivmateriallage abdecken.

PRISMATISCHE BATTERIEZELLE MIT MEHRSCHICHTIGEN ELEKTRODENSTAPELN IN EINER VERTIKAL GESTAPELTEN KONFIGURATION

Absstract of: DE102024122335A1

Eine prismatische Batteriezelle umfasst einen Batteriebehälter, der ein Innenvolumen definiert. Der Batteriebehälter umfasst eine erste Seite, eine der ersten Seite gegenüberliegende zweite Seite, einen unteren Abschnitt, einen dem unteren Abschnitt gegenüberliegenden oberen Abdeckungsabschnitt und mindestens zwei Elektrodenstapel. Der obere Abdeckungsabschnitt umfasst einen Anodenanschluss und einen Kathodenanschluss. Der Anodenanschluss und der Kathodenanschluss erstrecken sich jeweils durch den oberen Abdeckungsabschnitt des Batteriebehälters. Jeder der mindestens zwei Elektrodenstapel umfasst einen ersten Elektrodenstapel und einen zweiten Elektrodenstapel, die beide innerhalb des durch den Batteriebehälter definierten Innenvolumens in einer vertikal gestapelten Anordnung angeordnet sind. Zwischen dem ersten und dem zweiten Elektrodenstapel kann eine Wärmebarriereplatte angeordnet sein.

Verfahren zur Befüllung mit einem Gapfiller

Absstract of: DE102024117044A1

Die vorliegende Erfindung betrifft ein Verfahren zum Befüllen eines Hohlraumes mit einem Gapfiller, bei dem der Gapfiller (13) zu einem ersten Teil mit einer Gapfiller-Matrix und zu einem zweiten Teil mit in der Gapfiller-Matrix eingemischten elektrisch isolierenden, ferromagnetischen und gegenüber der Gapfiller-Matrix chemisch inerten Partikeln (14) gebildet wird, bei dem der Hohlraum an einem Einfüllpunkt (12) mit dem Gapfiller (13) befüllt wird, bei dem mindestens ein auf mindestens eine geometrische Struktur (15) des Hohlraumes einwirkendes Magnetfeld dergestalt angelegt wird, dass die magnetischen Feldlinien vorrangig parallel zu einer gedachten Verbindungslinie zwischen dem Einfüllpunkt (12) und der geometrischen Struktur (15) verlaufen, wodurch die von dem mindestens einen Magnetfeld angezogenen Partikel (14) zusammen mit der Gapfiller-Matrix in die geometrische Struktur (15) einströmen.

Batteriemodul

Absstract of: DE102024116664A1

Die Erfindung betrifft ein Batteriemodul (1), aufweisend Batteriezellen (2) und ein Batteriemanagementsystem (3) zur Bestimmung des Funktionszustands der Batteriezellen (2). Erfindungsgemäß ist vorgesehen, dass einer jeweiligen der Batteriezellen (2) ein überbrückbarer Strommesswiderstand (8) zur Bestimmung des aktuellen Zellenstroms der Batteriezelle (2) zugeordnet ist.

MODULAR HVDC BUSBAR ASSEMBLY FOR ELECTRICAL SYSTEM

Absstract of: WO2025259505A1

A busbar assembly (100) for electrically interconnecting a plurality of power racks (120) arranged in a rack row (120) includes first and second conductive busbars (152) extending horizontally with respect to the rack row (120). The first and second conductive busbars (152) electrically connect with first and second pluggable connectors (160) extending rearward from the rack row (120) orthogonal to the busbars. To interconnect the conductive busbars (150) and pluggable connectors (160), the busbar assembly (100) includes first and second conductive links (170) that are shaped to extend between the components. To brace the busbars in parallel, the busbar assembly (100) includes a support insulator (180) that traverses and clamps to the busbars.

MODULARES ELEKTROCHEMISCHES ENERGIESPEICHERSYSTEM

Absstract of: DE102024117027A1

Ein modulares elektrochemisches Energiespeichersystem weist eine Mehrzahl von Modulen auf. Dazu gehören: zumindest ein Energiespeichermodul, das zur elektrochemischen Speicherung von Energie konfiguriert ist und ein erstes Gehäuse einer ersten Gehäusebauart aufweist; und zumindest ein Steuerungsmodul, das als Wechselrichter- und Steuerungseinheit zur zumindest anteiligen Steuerung des Energiespeichersystems konfiguriert ist und ein zweites Gehäuse einer zweiten Gehäusebauart aufweist. Das erste Gehäuse und das zweite Gehäuse weisen jeweils an ihren Gehäuseoberseiten und Gehäuseunterseiten zumindest je eine Gehäuseöffnung auf. Dabei ist eine Mehrzahl von Modulen unabhängig von ihrer Gehäusebauart vertikal derart übereinander stapelbar, dass dann bei je zwei im Stapel vertikal benachbarten Modulen eine Gehäuseöffnung an der Gehäuseunterseite des oberen der beiden Module mit einer Gehäuseöffnung an der Gehäuseoberseite des unteren der beiden Module derart überlappt, dass durch diese überlappenden Gehäuseöffnungen eine vertikale Leitungsführung zum leitungsgebundenen Anschluss eines im Stapel (unmittelbar oder mittelbar) oberhalb des unteren der beiden Module liegenden Moduls ermöglicht ist. Bei dem Anschluss kann es sich insbesondere um einen elektrischen und/oder einen hydraulischen Anschluss handeln.

Vorrichtung zur automatischen optischen Inspektion eines entlang einer Transportstrecke bewegten bahnförmigen oder bogenförmigen mindestens eine Beschichtung aufweisenden Produktes

Absstract of: DE102024116942A1

Die Erfindung betrifft eine Vorrichtung zur automatischen optischen Inspektion eines entlang einer Transportstrecke bewegten bahnförmigen oder bogenförmigen mindestens eine Beschichtung aufweisenden Produktes, aufweisend eine Zeilenkamera, eine erste Beleuchtungseinrichtung und eine zweite Beleuchtungseinrichtung, wobei die Transportstrecke einen Erfassungsbereich der Zeilenkamera durchquert, wobei die Zeilenkamera zwischen der ersten und der zweiten Beleuchtungseinrichtung angeordnet ist, wobei ein Zentralstrahl der von der ersten Beleuchtungseinrichtung emittierten Strahlung und ein Zentralstrahl der von der zweiten Beleuchtungseinrichtung emittierten Strahlung auf einer Oberfläche der betreffenden Beschichtung einen gemeinsamen Auftreffpunkt haben, wobei der Zentralstrahl der ersten Beleuchtungseinrichtung zu einer auf dem Auftreffpunkt stehenden Normalen einen Winkel im Bereich zwischen 10° und 30° und der Zentralstrahl der zweiten Beleuchtungseinrichtung zu der Normalen einen Winkel im Bereich zwischen 45° und 70° bilden, wobei ein zwischen einem auf die Zeilenkamera gerichteten Reflexionsstrahl und der Normalen ausgebildeter Winkel und der zwischen dem Zentralstrahl der ersten Beleuchtungseinrichtung und der Normalen ausgebildete Winkel symmetrisch zu der Normalen angeordnet sind.

STEUERVORRICHTUNG FÜR EINE STROMSPEICHERVORRICHTUNG

Absstract of: DE102025107072A1

Ein ECU ist eine Steuervorrichtung für ein Stromspeichersystem. Das Stromspeichersystem umfasst eine Batteriezelle, einen Temperatursensor und eine Kühl- und Temperaturerhöhungsvorrichtung. Das Steuergerät enthält eine CPU. Die CPU ermittelt einen geschätzten Maximalwert des Temperaturunterschieds zwischen der erfassten Temperatur und der Elektrodentemperatur der Batteriezelle, und eine geschätzte erforderliche Zeitspanne, die der Temperaturunterschied benötigt, um den Maximalwert zu erreichen. Wenn eine Temperaturerhöhungsdauer die geschätzte erforderliche Zeitspanne überschreitet, verringert die CPU einen Temperaturunterschied-Schätzwert des Temperaturunterschieds zwischen der vom Temperatursensor erfassten Temperatur und der Elektrodentemperatur, während die Temperaturerhöhung fortgesetzt wird, um einen Elektrodentemperatur-Schätzwert der Batteriezelle zu erhöhen und einen dem Elektrodentemperatur-Schätzwert entsprechenden Grenzwert des elektrischen Ladestroms der Batteriezelle zu erhöhen.

EXTENDING THE CYCLE LIFE OF LITHIUM-ION CELLS: METHOD AND CORRESPONDING CELL DESIGN

Absstract of: WO2025259349A1

A lithium-ion cell and a method of regenerating the capacity of the cell in order to extend the cycling life of the cell. The lithium-ion cell includes an anode having a negative electrode with one or more anode active materials and at least one anode binder material; and a cathode having a positive electrode with one or more cathode active materials, at least one carbon additive, at least one cathode binder material, and at least one lithium additive. The lithium-ion cell, which has an initial capacity and maximum voltage, is configured for regeneration once the initial capacity decays to a capacity level that is < 95% of the initial capacity. The regeneration includes the oxidation of the lithium additive by charging the cell to a higher voltage than the maximum voltage, thereby, increasing the capacity level and extending the useful cycling life of the lithium-ion cell.

Verfahren zum Übertragen einer physikalischen Messgröße

Absstract of: DE102024117150A1

Die Erfindung betrifft ein Verfahren zum Übertragen einer physikalischen Messgröße (T) einer Batterie (10), insbesondere eines Fahrzeugs (200), aufweisend:- Messen (110), durch einen Sensor (21) einer Batterie (10), eines Messwerts (M1) der für eine physikalische Messgröße (T) der Batterie (10) spezifisch ist,- Umwandeln (120), durch den Sensor (21), des Messwerts (M1) in ein optisches Signal (S),- Übertragen (130) des optischen Signals (S) von dem Sensor (21) über eine optische Leitung (30) an eine Steuereinheit (CMS),- Ermitteln (140), durch die Steuereinheit (CMS), der physikalischen Messgröße (T) in Abhängigkeit von dem optischen Signal (S).Weiterhin betrifft die Erfindung ein Computerprogrammprodukt, einen computerlesbaren Datenträger, eine Steuereinheit (CMS) und ein Fahrzeug (200).

Hochvoltspeicher für ein Kraftfahrzeug

Absstract of: DE102024116709A1

Die Erfindung betrifft einen Hochvoltspeicher (10) für ein Kraftfahrzeug, aufweisend ein Gehäuse (11) und wenigstens eine in dem Gehäuse (11) aufgenommene Batterierundzelle (13), wobei die wenigstens eine Batterierundzelle (13) eine dem Gehäuse (11) zugewandte Entgasungs-öffnung (14) aufweist und das Gehäuse (11) wenigstens ein Strukturelement (12) aufweist.

POSITIVELEKTRODE, SEKUNDÄRBATTERIE, UND BATTERIEPACK

Absstract of: DE102025120774A1

Eine Positivelektrode weist einen Positivelektroden-Stromkollektor und eine Positivelektroden-Aktivmaterialschicht auf. Der Positivelektroden-Stromkollektor erstreckt sich sowohl in Längsrichtung als auch in Breitenrichtung. Die Positivelektroden-Aktivmaterialschicht weist ein Positivelektroden-Aktivmaterial und ein Positivelektroden-Bindemittel auf und ist auf dem Positivelektroden-Stromkollektor aufgeschichtet. Die Positivelektroden-Aktivmaterialschicht weist einen ersten dünnen Teil und einen ersten dicken Teil auf. Der erste dicke Teil hat eine Dicke, die größer ist als die Dicke des ersten dünnen Teils, und grenzt in Längsrichtung an den ersten dünnen Teil. Das Verhältnis des Anteils des Positivelektroden-Bindemittels zum Anteil des Positivelektroden-Aktivmaterials im ersten dünnen Teil ist geringer als im ersten dicken Teil.

Elektrode für eine Batteriezelle, Verfahren zum Herstellen der Elektrode, Batteriezelle, Batterie sowie die Batterie aufweisendes Fahrzeug

Absstract of: DE102024117040A1

Die Erfindung betrifft eine Elektrode (10, 10') für eine Batteriezelle (28), umfassend einen ein elektrisch leitendes Material aufweisenden Stromleiter (12, 12') mit mindestens einer Kontaktoberfläche (14, 14') zum Bilden eines Kontakts zwischen dem Stromleiter (12, 12') und einem batteriechemischen Medium (16, 16'). Der Stromleiter (12, 12') weist im Bereich der mindestens einen Kontaktoberfläche (14, 14') eine Kontaktstruktur zur Verbesserung des Kontakts zwischen dem Stromleiter (12, 12') und dem batteriechemischen Medium (16, 16') auf. Mit der Elektrode (10, 10') kann die Performance von Batterien mit hoher Energiedichte verbessert und deren Lebensdauer verbessert werden.

ZYLINDRISCHE BATTERIE

Absstract of: DE102025122852A1

Zur Bereitstellung einer zylindrischen Batterie, die ein Sicherheitsventil aufweist, das geeignet ist, eine unbeabsichtigte Stromunterbrechung und Wiederleitfähigkeit nach einer Stromunterbrechung im Falle einer Batterieabnormalität geeignet zu unterdrücken. Eine zylindrische Batterie, die eine obere Abdeckung und ein Sicherheitsventil aufweist, wobei das Sicherheitsventil eine Sicherheitsabdeckung und eine Abreißscheibe aufweist, die in einer Batterieaxialrichtung nach innen von der Sicherheitsabdeckung angeordnet ist, und ein vorbestimmter Abschnitt der Sicherheitsabdeckung, der zwischen einem Abschnitt, an dem die Sicherheitsabdeckung und die obere Abdeckung miteinander in Kontakt sind, und einem Abschnitt, an dem die Sicherheitsabdeckung und die Abreißscheibe miteinander in Kontakt sind, angeordnet ist, ein geneigter Abschnitt ist, der in einer Batterieaxialrichtung nach innen geneigt ist in Bezug auf eine Kontaktfläche, an der die Sicherheitsabdeckung und die obere Abdeckung miteinander in Kontakt sind.

Applikationseinheit und Verfahren zur Verarbeitung von selbstklebenden Stanzteilen zum Verschluss von Öffnungen in einem Fahrzeugelement wie Batteriegehäusen

Absstract of: DE102024116855A1

Die Erfindung betrifft ein Verfahren zum automatisierten Aufbringen eines selbstklebenden Stanzteils (7) auf ein Fahrzeugelement (1) wie Batteriegehäuse durch eine an einem Roboterarm befestigte Applikationseinheit (100), wobei mittels eines Zylinders (5), aufweisend eine Wirkachse (W) und umfassend einen Vakuumstempel (6), ein selbstklebendes Stanzteil (7) von einem Stanzteilband (8) aufweisend eine Längsrichtung (L) abgelöst wird und dann auf ein Fahrzeugelement (1) aufgestempelt wird,- wobei das Stanzteilband (8) zur Verfügung gestellt wird,- der Vakuumstempel (6) in eine Übernahmeposition bewegt wird,- wobei in der Übernahmeposition ein Vakuum in dem Vakuumstempel (6) aktiviert wird,- das selbstklebende Stanzteil (7) durch Bewegen des Vakuumstempels in Richtung des selbstklebenden Stanzteils (7) mittels des Vakuums am Vakuumstempel (6) fixiert wird,- das selbstklebende Stanzteil (7) von dem Stanzteilband (8) abgelöst wird, indem der Vakuumstempel (6) mindestens so weit wegbewegt wird, dass das selbstklebende Stanzteil (7) vollständig von dem Stanzteilband (8) abgelöst wird, und- der Vakuumstempel (6) in eine Position über das Fahrzeugelement (1) geführt wird und das selbstklebende Stanzteil (7) auf dem Fahrzeugelement (1) aufgebracht wird, indem der Vakuumstempel (6) durch den Zylinder (5) aus der Übernahmeposition entlang der Wirkachse (W) in eine Applikationsposition gebracht wird, in der das selbstklebende Stanzteil (7) auf das Fahrzeugelement (1) gestempel

ELECTROLYTE COMPOSITION

Absstract of: WO2025257670A1

Provided herein is an electrolyte composition for a lithium-ion battery, the composition comprising: (a) 18-35 wt% of lithium salt; (b) 1-25 wt% of solvent additive; and (c) 45-80 wt% of solvent. The total amount of (a), (b) and (c) is less than or equal to 100 wt% of the electrolyte composition. The lithium salt comprises lithium bis(fluorosulfonyl)imide (LiFSI) and lithium 4,5-dicyano-2-(trifluoromethyl)imidazole (LiTDI). The solvent additive comprises one or more fluorinated and/or unsaturated carbonate compounds. The solvent comprises a cyclic carbonate and a linear carbonate. Also provided is an electrochemical cell comprising the electrolyte composition, an electrochemical energy storage device comprising the electrochemical cell, and uses associated with the electrolyte composition.

Vorrichtung zur Verringerung einer Ausbreitung eines thermischen Durchgehens innerhalb eines elektrischen Energiespeichers eines Fahrzeuges

Absstract of: DE102025144914A1

Die Erfindung betrifft eine Vorrichtung (1) zur Verringerung einer Ausbreitung eines thermischen Durchgehens innerhalb eines Gehäuses (4) eines elektrischen Energiespeichers (2) eines Fahrzeuges mit einer elektrischen Antriebseinheit, wobei das Gehäuse (4) eine im Normalbetrieb geschlossene Berstöffnung (O) aufweist. Erfindungsgemäß ist vorgesehen, dass die Berstöffnung (O) mit einem Einlass (E) einer außerhalb des Gehäuses (4) angeordneten Leitung (6) zur Aufnahme eines über die Berstöffnung (O) nach außerhalb des Gehäuses (4) strömenden Ventinggases (V) im Fall eines innerhalb des Gehäuses (4) auftretenden thermischen Ereignisses fluidisch gekoppelt ist, ein gegenüberliegender Auslass (A) der Leitung (6) an einer zu der Berstöffnung (O) beabstandeten Öffnung des Gehäuses (4) zur Rückführung des Ventinggases (V) in das Gehäuse (4) mündet, wobei in einen Leitungsabschnitt zwischen der Berstöffnung (O) und der Öffnung des Gehäuses (4) ein Oxidationskatalysator (7) zur Umwandlung von in dem Ventinggas (V) enthaltenem Kohlenstoffmonoxid in Kohlenstoffdioxid integriert ist und dem Oxidationskatalysator (7) nachgelagert eine Kühleinheit (8) in den Leitungsabschnitt zur Verringerung einer Temperatur des in das Gehäuse (4) rückgeführten Ventinggases (V) integriert ist.

Akkupack mit Pouch-Zelle

Absstract of: DE102024116842A1

Ein Akkupack (1) für ein Elektrogerät weist eine Pouch-Zelle (2, 2') und ein Wärmeableitelement (3, 3') auf, das auf einer Seite der Pouch-Zelle (2, 2') zur Ableitung von durch die Pouch-Zelle (2, 2') erzeugter Wärme angeordnet ist, sowie eine Glimmerplatte (4, 4', 6, 6'), die zwischen der Pouch-Zelle (2, 2') und dem Wärmeableitelement (3, 3') angeordnet ist.

FESTKÖRPERBATTERIE UND VERFAHREN ZUM HERSTELLEN EINER FESTEN FESTKÖRPERBATTERIE

Absstract of: DE102025122587A1

Eine Festkörperbatterie nach der vorliegenden Offenbarung umfasst einen Elektrodenkörper, Stromsammellaschen, die mit dem Elektrodenkörper verbunden sind, und ein Schutzelement. Der Elektrodenkörper hat einen Positivelektrodenstromsammler, eine Positivelektrodenaktivmaterialschicht, eine Festelektrolytschicht, eine Negativelektrodenaktivmaterialschicht und einen Negativelektrodenstromsammler, die entlang einer Laminierrichtung laminiert sind. Die Festelektrolytschicht hat eine Stützeinrichtung, die eine Vielzahl von Fasern umfasst, die sich im Material vom Schutzelement unterscheiden. Die Stützeinrichtung steht von einer Endfläche der Festelektrolytschicht vor. Das Schutzelement ist mit der Stützeinrichtung verbunden und an der Endfläche angeordnet.

Verfahren zur Folierung von Batteriezellen mittels einer Foliereinrichtung

Absstract of: DE102024117001A1

Die vorliegende Erfindung betrifft ein Verfahren zur Folierung von Batteriezellen mittels einer Foliereinrichtung. Weiterhin betrifft die vorliegende Erfindung eine gemäß diesem Verfahren erhaltene oder erhältliche, mit einer Klebefolie ummantelte Batteriezelle.

Diagnoseverfahren

Absstract of: DE102024116814A1

Die Erfindung betrifft ein Diagnoseverfahren (10) zur Ermittlung eines sich über die Alterung ändernden Leistungszustandes einer Batteriezelle (3) eines Fahrzeugs (1), aufweisend die Schritte:- Anregen (11) der Batteriezelle (3) mit einem ersten Diagnosestromsignal (24) zur Erzeugung eines ersten Antwortsignals (12) der Batteriezelle innerhalb eines Entladevorgangs (20) und/oder während der Fahrt (20),- Erfassen (13) des ersten Antwortsignals (12) während des Entladevorgangs (20) und/oder während der Fahrt (20), gekennzeichnet durch- Anregen (14) der Batteriezelle (3) mit einem zweiten Diagnosestromsignal (34) zur Erzeugung eines zweiten Antwortsignals (15) der Batteriezelle (3) vor einer Ladephase (35) der Batteriezelle (3), während einer Ladephase (35) der Batteriezelle (3) und/oder in einem Stillstand (30) des Fahrzeugs (1),- Erfassen (16) des zweiten Antwortsignals (15) im Stillstand (30), wobei das Erfassen (14) des zweiten Antwortsignals (15) bei einem gleichen Ladezustand (SOC) wie das Erfassen (13) des ersten Antwortsignals (12) erfolgt, und- Bestimmen (17), insbesondere Berechnen unter Verwendung eines Ersatzschaltbildes (50), des Leistungszustandes mit dem ersten Antwortsignal (12) und dem zweiten Antwortsignal (15).

BATTERY HOUSING AND RELATED MANUFACTURING PROCESS

Absstract of: WO2025257723A1

The battery housing (12) comprises : a main body (18), made as a single piece by means of a process of high-pressure die-casting (HPDC) of aluminium alloy, and having a box-like shape adapted to define an internal volume and having only one open face (22); and a lid (20), adapted to be applied to the main body (18) so as to close said open face (22), wherein the lid (20) is adapted to be applied to the main body (18) by means of a mechanical snap- or pressure- connection (28; 30), or wherein the lid (20) is adapted to be applied to the main body (28) by means of a sliding connection.

ELECTROLYTE COMPOSITION

Absstract of: WO2025257659A1

Provided herein is an electrolyte composition for a lithium-ion battery, the composition comprising: (a) 18-35 wt% of lithium salt; (b) 1-25 wt% of solvent additive; and (c) 45-80 wt% of solvent. The total amount of (a), (b) and (c) is less than or equal to 100 wt% of the electrolyte composition. The lithium salt comprises lithium bis(fluorosulfonyl)imide (LiFSI), lithium 4,5-dicyano-2-(trifluoromethyl)imidazole (LiTDI) and lithium difluoro(oxalato)borate (LiDFOB). The solvent additive comprises one or more fluorinated and/or unsaturated carbonate compounds. The solvent comprises a cyclic carbonate. Also provided is an electrochemical cell comprising the electrolyte composition, an electrochemical energy storage device comprising the electrochemical cell, and uses associated with the electrolyte composition.

METHOD OF RECYCLING CYANO-BASED ELECTRODE ACTIVE MATERIALS

Absstract of: WO2025257105A1

The disclosure relates to a method of recycling metals of a battery, wherein the battery comprises cyano-based material such as Prussian Blue Analogs. The method uses alkaline leaching, physical separation and subsequent evaporation to recover high value components from the battery.

SYSTEM AND METHOD FOR MONITORING A BATTERY PACK

Absstract of: US2025385533A1

A battery pack includes a set of blocks of battery cells, where each of the blocks is connected in series, and a set of AC impedance circuits, where each of the AC impedance circuits is electrically connected to at least one of the blocks of battery cells in the set of blocks of battery cells to apply an AC excitation signal to the at least one of the blocks in the set of blocks. The battery pack includes a controller configured to: calculate an impedance value for each of the at least one of the blocks of battery cells based on the AC excitation signal applied to each of the at least one of the blocks of battery cells, and adjust a parameter of the battery pack based on the calculated impedance value for each of the at least one of the blocks of battery cells.

USE OF SODIUM SULFATE FROM BATTERY RECYCLING

Absstract of: WO2025257073A1

The present invention relates to a process to manufacture sodium chloride comprising at least the steps: c) reacting calcium chloride with a sodium sulfate-containing material, whereby the sodium sulfate-containing material originates from i) a recycling of batteries or ii) a manufacturing of cathode active material (CAM) and precursor cathode active material (PCAM) for batteries, or iii) a production of Li, Co, Mn, or Ni, and wherein the sodium sulfate-containing material comprises on a dry basis at least 80 wt.-% sodium sulfate and at least 0.5 mg of at least one element X selected in the list consisting of: Co, F, Li, Mn, Ni, P and mixtures thereof, expressed per kg of sodium sulfate-containing material, and wherein reacting the calcium chloride with the sodium sulfate-containing material is done in an aqueous solution at a pH of at least 5 and produces sodium chloride in the aqueous solution and calcium sulfate in solid form, and c1) at least part of the sodium chloride in the aqueous solution is separated from the calcium sulfate in solid form.

ELECTROCHEMICAL CELL FOR AN ELECTRIC BATTERY AND ELECTRIC BATTERY FOR AN ELECTRIC VEHICLE

Absstract of: WO2025257651A1

The invention relates to an electric cell (1) comprising: - a sealed flexible pouch (2); - a plurality of positive and negative electrodes (3, 4) separated from one another by a porous separator film (5) so as to form a stack (6) of electrodes, wherein the stack (6) of electrodes is contained in the flexible pouch (2); - an electrolyte arranged in the flexible pouch (2); - a first terminal (7) connected to the positive electrodes (3) and a second terminal connected to the negative electrodes (4), wherein the first and second terminals project from the flexible pouch (2), and wherein the cell (1) comprises a rigid outer shell (9) in which the flexible pouch (2) is arranged, wherein the outer shell (9) comprises: - a first metal portion (10) connected to the first terminal (7); and - a second metal portion (11) connected to the second terminal.

VEHICLE BATTERY

Absstract of: WO2025257367A1

The invention relates to a battery which comprises an outer casing delimiting: - a lower compartment accommodating a first group of battery modules, the lower compartment comprising a lower module-cooling plate provided with a lower circuit for the passage of a cooling liquid, and - an upper compartment, arranged above the lower compartment and accommodating a second group of battery modules, the upper compartment comprising an upper module-cooling plate provided with an upper circuit for the passage of cooling liquid. The outer casing comprises: - a first lower port (44) connected to the lower cooling circuit (42), - a first upper port (54) connected to the upper cooling circuit (52), and the battery has an external connecting pipe, referred to as first external pipe (74), connecting the first lower port (44) and the first upper port (54).

DETERMINING AN ITEM OF INFORMATION REPRESENTATIVE OF A VARIATION IN THE STATE OF CHARGE OF A CELLULAR RECHARGEABLE BATTERY OF A SYSTEM

Absstract of: WO2025257482A1

The invention relates to a method for determining an item of information relating to a rechargeable battery forming part of a system, wherein the battery comprises a plurality of cells and has determined first voltages across the terminals of the cells and a determined no-load voltage, and wherein the battery further has an estimated capacity obtained by dividing a quantity of ampere-hours delivered during a discharge phase or received during a charge phase by a variation in the state of charge during this discharge phase or this charge phase. This method comprises a step (10-20) of determining an item of information representative of a minimum variation in the state of charge, wherein the item of information is used to estimate the capacity with a selected degree of accuracy, and wherein the determination step is performed as a function of at least one first estimated error relating to the variation in the state of charge and a second estimated error relating to the quantity of ampere-hours.

METHOD AND DEVICE FOR CUTTING AN ELECTRODE STRIP

Absstract of: WO2025257019A1

The invention relates to a method for cutting an electrode strip (2) which has a substrate (4) with a coated region (6) and with an uncoated edge region (8), wherein a supporting strip (12) is arranged on the electrode strip (2) so as to run alongside in such a way that the supporting strip (12) supports the uncoated edge region (8) and projects laterally beyond the edge region (8), wherein the electrode strip (2) is laser-cut in the uncoated edge region (8) to form an arrester tab (10), and wherein the laser cutting is carried out via the supporting strip (12). The invention also relates to a device (32) for cutting the electrode strip (2).

METHOD FOR PREPARING METAL-BEARING HYDROXIDE PARTICULATE MATERIAL

Absstract of: WO2025257311A1

A method for preparing a metal-bearing M'-hydroxide particulate material, the method comprising the steps of: (a) determining a target value (D') for a median particle diameter D50 of the material to be prepared, preferably the D' being in the range of 3-20 μm; (b) combining, during a time period (T1-T2), streams of an aqueous solution (βc) containing salts of metals Mc' and an aqueous solution (ω) containing an alkali metal hydroxide in a stirred tank reactor at a pH of 10.5-12.5, determined at 20 °C, thereby increasing the sizes of particles comprising Mc'-hydroxide in a slurry thus formed; (c) continuing step (b) until the D50 of the particles reaches approximately a value of Dc, wherein the amount of metals Mc' provided by the flow of solution (βc) during the period (T1-T2) is θc, wherein (formula I), wherein ε is a predetermined value selected from the range of 0.01-0.9; (d) providing at least a fraction Sc of the slurry obtained in step (c) either to the same or to a different stirred tank reactor, wherein 0

ALIOVALENTLY SUBSTITUTED ARGYRODITE-TYPE SOLID ELECTROLYTES

Absstract of: WO2025257297A1

The present invention relates to aliovalently substituted argyrodite-type solid electrolyte solid electrolytes. These solid electrolytes display and increased ionic conductivity.

REMOVAL OF AMORPHOUS CARBON AND IMPURITIES FROM GRAPHITE RECOVERED FROM BATTERIES

Absstract of: WO2025257296A1

The present disclosure relates to the recycling of graphite from lithium-ion batteries. A graphite material depleted of amorphous carbon is obtained by heating a leach residue obtained by acid treatment of black mass from lithium-ion batteries under controlled conditions. The graphite material depleted of amorphous carbon is subjected to caustic leaching to obtain purified graphite.

METHOD FOR MONITORING A VEHICLE BATTERY, AND CONTROL DEVICE

Absstract of: WO2025257017A1

The invention relates to a method for monitoring a vehicle battery (210), having the following steps: determining (S1) at least one parameter (113, 121, 122, 123, 124, 125) of the vehicle battery (210); modelling (S4) a temperature hotspot using the at least one parameter (113, 121, 122, 123, 124, 125); providing (S5) information (131) about the modelled temperature hotspot; and transmitting (S8) the information (131) to a vehicle-external receiver (140) if a criterion is met which is based on a temperature threshold value (111) and/or a probability threshold value. The invention also relates to a corresponding control device (130) and to a computer program.

LEAK DETECTION METHOD AND DEVICE FOR IMPLEMENTING SAID METHOD

Absstract of: WO2025257270A1

The invention relates to a method for detecting leaks in an object defining at least one internal volume, said method comprising a step of pressurization/depressurization of an internal volume from an initial pressure, characterized in that the method comprises, simultaneously with the pressurization/depressurization step, a monitoring step allowing the interruption of the pressurization/depressurization step when the instantaneous pressure/depression is outside a predetermined tolerance interval around said reference value.

MANGANESE SEPARATION FROM BLACK MASS FROM RECYCLED LI-ION BATTERIES WITH A SULFUR-CONTAINING INORGANIC PERACID

Absstract of: WO2025257189A1

The present invention relates to a method for recovering metals from a black mass from spent lithium-ion batteries. In particular, it relates to a method for leaching Co, Ni and Li from a solid S obtainable from a black mass from spent Li-ion batteries, said solid S comprising Ni, Co, Mn and Li, said method comprising contacting the solid S with a sulfur-containing inorganic peracid, such as Caro's acid (peroxymonosulfuric acid), thereby obtaining a solution C comprising Co, Ni, and Li on the one hand, and a solid S" comprising Mn on the other hand.

MESOPOROUS METAL OXIDE LAYER

Absstract of: WO2025257108A1

A method for fabricating a metal oxide layer involves providing a metallic nitride substrate and performing electrochemical oxidation of the metallic nitride substrate in either an acidic or basic environment to form the metal oxide layer. This electrochemical oxidation process is characterized by a gas-evolving reaction that results in the formation and escape of nitrogen gas from the forming metal oxide layer such that a mesoporous 3D interconnected metal oxide structure comprising a 3D network of interconnected pores is formed. This method enables the creation of metal oxide layers with specific properties suitable for various applications, including but not limited to, use in batteries, and as electrodes in molecular synthesis.

Batteriesystem und Kraftfahrzeug

Absstract of: DE102024117048A1

Die vorliegende Erfindung betrifft ein Batteriesystem (10) für ein Kraftfahrzeug (100), das Batteriesystem (10) umfassend zumindest einen Grundkörper (20), zumindest eine Speichervorrichtung (30) zur Speicherung und Bereitstellung von elektrischer Energie innerhalb des zumindest einen Grundkörper (20), eine Entgasungsvorrichtung (40) zur Entgasung des zumindest einen Grundkörpers (20) und eine Kühlschnittstelle (80) zum Einbringen von Kühlflüssigkeit von einer ersten Zelle der Speichervorrichtung (30) in zumindest eine benachbarte zweite Zelle der Speichervorrichtung (30). Ferner betrifft die Erfindung ein Kraftfahrzeug (100) mit zumindest einem Batteriesystem (10).

Thermische Schnittstelleneinrichtung für ein Kraftfahrzeug

Absstract of: DE102024116711A1

Die Erfindung betrifft eine thermische Ausgangsschnittstelleneinrichtung (11) für ein Kraftfahrzeug (10), wobei die Ausgangsschnittstelleneinrichtung (11) mit einer Antriebsbatterie (12) des Kraftfahrzeugs (10) thermisch verbindbar ist, wobei die Ausgangsschnittstelleneinrichtung (11) wenigstens ein Wärmetauschelement (16) aufweist, welches eingerichtet ist, thermische Energie von der Antriebsbatterie (12) abzugeben.

Aufnahmeeinrichtung für Batterierundzellen eines Hochvoltspeichers

Absstract of: DE102024116713A1

Die Erfindung betrifft eine Aufnahmeeinrichtung (11) für Batterierundzellen (20) eines Hochvoltspeichers, wobei die Aufnahmeeinrichtung (11) eingerichtet ist, Batterierundzellen aufzunehmen und in einer Zellpackung anzuordnen. Zudem betrifft die Erfindung eine Aufnahmevorrichtung 10 und einen Hochvoltspeicher.

Batterieelektrolyte mit Lösungsmitteln umfassend cyclische Acetale

Absstract of: DE102024116584A1

Die vorliegende Erfindung betrifft einen lösungsmittelbasierten Elektrolyt für einen elektrochemischen Energiespeicher, aufweisend wenigstens die folgenden Bestandteile:- wenigstens ein Lösungsmittel; und- wenigstens ein Leitsalz, wobei wenigstens ein Lösungsmittel der folgenden Formel (1) entspricht:wobei- R und R1 gleich oder verschieden sind und ausgewählt sind aus der Gruppe bestehend aus H, CH3, der Struktur gemäß Formel (2), der Struktur gemäß Formel (3) und der Struktur gemäß Formel (4), wobei- die Formel (2) der folgenden Struktur entspricht:- die Formel (3) der folgenden Struktur entspricht:wobei n eine ganze Zahl von 1 bis 10 ist;- die Formel (4) der folgenden Struktur entspricht:wobei in den Formeln (1), (3), und (4) R2und R3gleich oder verschieden sind und ausgewählt sind aus der Gruppe bestehend aus H, (CH2)x-CH3, wobei x eine ganze Zahl von 0 bis 9 ist.

PRISMATISCHE SEKUNDÄRBATTERIEZELLE SOWIE VERFAHREN ZUR HERSTELLUNG EINER SEKUNDÄRBATTERIEZELLE

Absstract of: DE102024122880A1

Eine Sekundärbatteriezelle umfasst ein Batteriezellengehäuse, einen Elektrolyten und eine Elektrodenanordnung. Die Elektrodenanordnung umfasst eine Kathode mit einem Kathodenbereich, eine Anode, einen Separator (i) mit einer der Anode zugewandten Seite und einer der Kathode zugewandten Seite, (ii) mit einem Bindungsbereich auf der der Kathode zugewandten Seite und vollständig außerhalb des Kathodenbereichs und (iii) ausgelegt, um die Kathode und die Anode physisch zu trennen, und einen Klebestreifen, der ausschließlich auf der der Kathode zugewandten Seite des Separators angebracht ist. Die Kathode ist von dem Separator entweder teilweise umschlossen oder vollständig umschlossen. Der Klebestreifen befindet sich vollständig in dem Bindungsbereich. Zwei Segmente des Klebestreifens auf gegenüberliegenden Seiten der Kathode sind miteinander verbunden.

SOLUTION AND METHOD FOR DECREASING THE DELETERIOUS EFFECTS OF SECONDARY LEAD IMPURITIES

Absstract of: WO2025259770A1

A solution and method for reduction of the deleterious effects of the impurities in secondary lead in batteries is disclosed. The solution comprises: a housing, a battery cell positioned within the housing having a lead, an acid within the housing, a chemical impurity in the lead, and a motivator within the housing and in coupled to the chemical impurity. The impurity may be one of copper, silver and bismuth. The method comprises integrating the motivator into the battery. The integration may comprise adding the motivator to the electrolyte in the housing. The method may comprise application of the motivator to various other aspects of the battery.

APPARATUS FOR FEEDING LIDS TO THE TERMINALS OF ELECTRICAL ENERGY STORAGE DEVICES

Absstract of: WO2025257871A1

The apparatus for feeding lids to the terminals of devices for storing electrical energy, such as electric batteries in particular, comprises a pair of handling members (2) adapted to transport a respective plurality of containers (3) step-by-step along relative feed directions (A, A'). Each container (3) is configured to contain a stack of a plurality of lids, each of which can be associated with a terminal of a cylindrical battery, and has, at least at one end, an opening (30) for collecting said lids. Downstream of said handling members (2) there are arranged a pair of gripping members (6), each gripping member (6) being operable in a gripping configuration to lock a container (3) transported to a collecting position (100) by said handling members (2). Collecting means (18) are adapted to collect one lid at a time from each container (3) and transport it to transport means (19) arranged downstream of said handling members (2), in order to transport said lids to a device for feeding cylindrical batteries.

AEROGEL COMPOSITE SHEET STACKS

Absstract of: WO2025259977A1

An example of an aerogel composite sheet stack includes a first sub-set, which includes at least one first sheet; a second sub-set, which includes at least one second sheet; an at least temporary attachment layer positioned in at least a portion of an interface between the first sub-set and the second sub-set, the at least temporary attachment layer being selected from the group consisting of: a release sheet; a thermoplastic film at least partially infiltrating pores of each of the at least one first sheet and the at least one second sheet, an adhesive positioned at an edge or a perimeter of the interface, and combinations thereof; and an aerogel material surrounding each of the first sub-set, the second sub-set, and the at least temporary attachment layer.

BATTERY AND METHOD FOR MANUFACTURING SAME

Absstract of: US2025385348A1

A battery includes an electrode assembly, a case including a bottom portion, a sidewall portion connected to the bottom portion and including a seating portion at one end thereof, and an upper opening opposite to the bottom portion, the case accommodating the electrode assembly, and a cap assembly that is coupled to the seating portion of the case, wherein the cap assembly includes at least one first engagement portion for coupling with the case, the case includes at least one second engagement portion respectively corresponding to the at least one first engagement portion, the seating portion including the at least one second engagement portion, and the at least one first engagement portion and the at least one second engagement portion are coupled to restrict movement of the cap assembly in an upward direction.

GRID-LIKE PATTERN SEALING DEVICE AND POUCH-TYPE BATTERY MANUFACTURED USING THE SAME

Absstract of: US2025385347A1

A grid-like pattern sealing device for sealing an electrode assembly by applying pressure to a pouch of a pouch-type battery according to an embodiment includes: a first sealing tool including a first pressure surface that is in close contact with a first sheet of the pouch; and a second sealing tool including a second pressure surface that is in close contact with a second sheet of the pouch, wherein the first pressure surface has a plurality of first convex portions, a plurality of second convex portions, and a plurality of first concave portions formed between the plurality of first convex portions and the plurality of second convex portions, the second pressure surface has a plurality of third convex portions, a plurality of fourth convex portions, and a plurality of second concave portions formed between the plurality of third convex portions and the plurality of fourth convex portions.

LEAD TAB ALIGNMENT DEVICE, BATTERY MANUFACTURING SYSTEM COMPRISING SAME, AND METHOD FOR MANUFACTURING BATTERY CELL BY BATTERY MANUFACTURING SYSTEM

Absstract of: US2025384540A1

The present disclosure relates to lead tab alignment device comprising a photographing unit for photographing a battery cell including a lead tab portion under assembly, wherein the battery cell under assembly includes a case in which an electrode assembly and the lead tab portion electrically connected to the electrode assembly are arranged, and an alignment correction unit detachably coupled to the lead tab portion and for adjusting the position of the lead tab portion, and battery manufacturing system comprising same, and method for manufacturing battery cell by battery manufacturing system.

CIRCUIT BOARD ASSEMBLY FOR BATTERY MODULE

Absstract of: US2025386418A1

A circuit board assembly for a battery module includes a first printed circuit board (PCB) including a plurality of balancing resistors and a plurality of balancing circuit switches corresponding to the plurality of balancing resistors. The first PCB includes at least one metallic layer. The plurality of balancing resistors and the plurality of balancing circuit switches perform a cell balancing operation of a plurality of battery cells of the battery module. Heat generated during the cell balancing operation of the plurality of battery cells is dissipated via the first PCB. The circuit board assembly also includes a second PCB. The second PCB includes a plurality of resistor-capacitor (RC) low-pass filters and an analog front-end (AFE) chip that is adapted to at least monitor a voltage and a temperature of the plurality of battery cells of the battery module.

CONTROL SYSTEM FOR PROTECTING MULTI-UNIT FUEL CELL SYSTEM

Absstract of: US2025385526A1

A system and method includes suppling power to a utility grid with a plurality of fuel cell power plants, storing power generated by the plurality of fuel cell power plants with an energy storage system including one or more batteries, and maintaining a standby state-of-charge of the one or more batteries of the energy storage system via an energy management system. The system and method further includes generating a load request to at least one of the plurality of fuel cell power plants via the energy management system, comparing the load request to a predetermined limit; and if the load request exceeds the predetermined limit, commanding the at least one of the plurality of fuel cell power plants to ignore the load request for a predetermined amount of time.

CHARGING METHOD AND CHARGING SYSTEM FOR BATTERY CELL

Absstract of: US2025385538A1

A battery cell charging method for a plurality of battery cells connected in series includes charging the plurality of battery cells with a first constant current, and cutting off the first constant current for a battery cell reaching a predetermined set voltage, and charging the plurality of battery cells with a second constant current lower than the first constant current when the first constant current is cut off for the plurality of battery cells, and cutting off the second constant current for a battery cell reaching the set voltage again.

METHOD FOR CHARGING BATTERY

Absstract of: US2025385535A1

To provide a charging method in accordance with a state of a positive electrode at the start of charging. To improve charge characteristics of a battery. The charging method is a method for charging a battery including a positive electrode active material represented by LixMO2 in a positive electrode. The Mis one or more selected from Co, Ni, Mn, and Al. It is determined whether the first charging is necessary or not by a value of the x at a time when charging of the battery starts. In the case where the first charging is determined to be necessary, second charging and third charging are performed in order after the first charging is performed. In the case where the first charging is determined to be unnecessary, the second charging and the third charging are performed in order. The first charging is performed for a charge time longer than or equal to 10 seconds and shorter than or equal to 30 seconds with a current value that is higher than or equal to 1 C and lower than or equal to 5 C. The second charging is constant current charging, and the third charging is constant voltage charging.

METHODS AND SYSTEMS FOR MANAGING BATTERY HEALTH

Absstract of: US2025385534A1

Methods, apparatuses, and systems are described for determining whether to charge a battery of a device based one or more parameters are described. A device may initially be fully charged in low power or sleep mode when it receives a power consumption event. Based on the power consumption event, the device may determine whether one or more parameter thresholds associated with the one or more parameters are satisfied and cause the device to charge the battery.

BATTERY MODULE AND BATTERY PACK INCLUDING THE SAME

Absstract of: US2025385337A1

A battery module is disclosed. The battery module includes a battery stack including a plurality of battery cells stacked in a first direction, one or more pad members provided between the plurality of battery cells, and a heat transfer member. The heat transfer member is provided at one side of the battery stack and provided to be in contact with the battery stack. The plurality of battery cells extend in a second direction intersecting the first direction. The heat transfer member is provided at one side of the battery stack in a third direction intersecting the first and second directions. The heat transfer member includes first and second heat transfer members provided in the form of different materials.

BATTERY DEVICE AND OPERATION METHOD THEREOF

Absstract of: US2025385530A1

Discussed is a battery apparatus that includes a main battery and an auxiliary battery. The battery apparatus can include a control unit that is configured to determine a state of the main battery according to a wake-up signal from the auxiliary battery, and a boost charger that receives power from the auxiliary battery and charges the main battery according to a determination of the control unit.

Adjustable Wireless Charging

Absstract of: US2025385547A1

Aspects of the application describe a wireless charging device and a charging method. The wireless charging device comprises: a housing having a first form and a second form; a transmitting coil disposed inside the housing; and a controller disposed inside the housing and connected to the transmitting coil. When the housing is in the first form, the controller is configured to control the transmitting coil to charge the electronic device in a first charging mode. When the housing is in the second form, the controller is configured to control the transmitting coil to charge the electronic device in a second charging mode. A charging power in the first charging mode is different from a charging power in the second charging mode.

BATTERY ASSEMBLY AND BATTERY PACK

Absstract of: US2025385378A1

A battery module in which a plurality of battery cells are stacked, each of plurality of battery cells having a first side surface on which an electrode terminal is disposed, each of the plurality of battery cells having a rectangular parallelepiped appearance having a flat surface shape, wherein end plates are disposed at respective end portions of a stack of the plurality of battery cells, a collective terminal base including a connection portion coupled to an external connection member is joined to an electrode terminal of a battery cell that is in contact with at least one of the end plates, and the connection portion is provided on a surface of the end plate opposite to a surface of the end plate in contact with the battery cell.

WIRING MODULE

Absstract of: US2025385503A1

A wiring module to be attached to a plurality of power storage devices includes a wire, a terminal connected to the wire, and a circuit board, with the terminal including a connecting part connected to the circuit board and a press-fit part different from the connecting part, and the circuit board having a connection land to which the connecting part is soldered and a press-fit hole arranged in a different position from the connection land and into which the press-fit part is press-fit.

LITHIUM-ION BATTERY

Absstract of: US2025385307A1

A lithium-ion battery, including a positive electrode, a negative electrode and a non-aqueous electrolyte. The positive electrode includes a positive electrode material layer containing a lithium cobalt oxide, the negative electrode includes a negative electrode current collector and a negative electrode material layer formed on the negative electrode current collector, the negative electrode material layer includes a negative electrode active material, and the non-aqueous electrolyte includes a non-aqueous organic solvent, a lithium salt and an additive. The non-aqueous organic solvent includes a carboxylic ester. The lithium-ion battery provided by the application has good performance under high temperature and low temperature conditions.

CONTROL APPARATUS FOR ELECTRICITY STORAGE APPARATUS

Absstract of: US2025385334A1

An ECU is a control apparatus for an electricity storage system. The electricity storage system includes a battery cell, a temperature sensor, and a cooling and temperature raising device. The ECU includes a CPU. The CPU determines an estimated maximum value of the temperature difference between the detected temperature and the electrode temperature of the battery cell, and an estimated required time period required for the temperature difference to reach the maximum value. When a temperature raising duration exceeds the estimated required time period, the CPU reduces a temperature difference estimated value of the temperature difference between the temperature detected by the temperature sensor and the electrode temperature while causing the temperature raising to be continued to increase an electrode temperature estimated value of the battery cell and increase a charging electric power limit value of the battery cell corresponding to the electrode temperature estimated value.

BATTERY CELL, BATTERY, ELECTRIC DEVICE, AND PROCESSING METHOD FOR BATTERY CELL

Absstract of: US2025385320A1

A battery cell, a battery, an electric device, and a processing method for a battery cell are provided. The battery cell comprises an electrode assembly and active structures. The electrode assembly comprises a positive electrode sheetand a negative electrode sheet, wherein the positive electrode sheet comprises first straight segments and first bent segments, and the negative electrode sheet comprises second straight segments and second bent segments, the first straight segmentsand the second straight segments are alternately stacked to form straight portions, and the first bent segments and the second bent segments are alternately stacked to form corner portions. At least some of the active structures are provided between the first bent segments and the second bent segments adjacent to the inner sides of the first bent segments. In this way, the problem of ion precipitation at the corner portions can be solved.

ELECTROLYTE FOR LITHIUM SECONDARY BATTERY, SECONDARY BATTERY, AND ELECTRIC DEVICE

Absstract of: US2025385314A1

The present application discloses an electrolyte for a lithium secondary battery, a secondary battery, and an electric device. The electrolyte for a lithium secondary battery includes a sulfate ester and difluorophosphate ions, a molar ratio of the sulfate ester to the difluorophosphate ions is (0.2 to 30):1, and a molar concentration of the sulfate ester is 0.04 mol/L to 0.16 mol/L.

SECONDARY BATTERY AND METHOD OF MANUFACTURING SAME

Absstract of: US2025385350A1

A first spacer is disposed between a first sealing plate and an electrode assembly. The first spacer includes a first base portion, a first outer peripheral wall, and a first inner wall. The first base portion is provided with a plurality of through holes. The first outer peripheral wall extends from an outer peripheral edge of a surface of the first base portion on the first sealing plate side toward the first sealing plate, and has a first portion and a second portion facing each other. The first inner wall is provided to connect the first portion and the second portion of the first outer peripheral wall.

SECONDARY BATTERY AND ELECTRIC DEVICE

Absstract of: US2025385317A1

A secondary battery and an electric device. The secondary battery includes a negative electrode sheet and an electrolyte, where the negative electrode sheet includes a negative electrode current collector and a negative electrode active layer located on at least one surface of the negative electrode current collector, the negative electrode active layer includes graphite, and the areal density of the negative electrode active layer is 0.09 mg/mm2 to 0.16 mg/mm2; the lithium ion conductivity of the electrolyte at 25° C. is 10 mS/cm to 20 mS/cm; and the electrolyte includes a first solvent, the first solvent having a general structural formula of R1-COO—R2, where R1 and R2 are each independently selected from any one of C1-C5 alkyl and C1-C5 haloalkyl.

ELECTROLYTIC SOLUTION, SECONDARY BATTERY AND ELECTRIC DEVICE

Absstract of: US2025385311A1

An electrolytic solution, a secondary battery and an electric device are described. The components of the electrolyte comprise a functional compound represented by formula (1). In formula (1), T1-T3 are each independently selected from any one of an alkyl group having 1-10 carbon atoms, an alkenyl group having 2-10 carbon atoms, an alkynyl group having 2-10 carbon atoms, and groups represented by following formulae (a)-(f). Among T1-T3, at least one is selected from the group represented by formula (a), and at least one is selected from the group represented by formula (b), (c), (d) or (e). In a charging/discharging process of the electrolyte, the functional compound represented by formula (1) can capture an oxidation product and improve the toughness of a formed SEI film, thereby improving the cycle performance of a secondary battery.

FLUORINATED POLYMER ELECTROLYTE FOR ELECTROCHEMICAL CELLS

Absstract of: US2025385306A1

A fluorinated gel polymer electrolyte for a vehicle battery cell, a battery cell, and a method of forming a fluorinated gel polymer electrolyte. The fluorinated gel polymer electrolyte includes a polymerized gel polymer electrolyte precursor. The gel polymer electrolyte is involatile up to 150 degrees Celsius. The gel polymer electrolyte precursor includes a lithium salt present in the range of 10 to 50 percent by weight of the total weight of the of the gel polymer electrolyte precursor, a fluorinated monomer present in the range of 10 to 50 percent by weight of the total weight of the gel polymer electrolyte precursor, and a non-aqueous organic solvent present in the range of 50 to 90 percent by weight of the total weight of the gel polymer electrolyte precursor.

Electrolyte for Lithium Secondary Battery and Lithium Secondary Battery Including the Same

Absstract of: US2025385309A1

An electrolyte for a lithium secondary battery according to the present disclosure includes: a lithium salt; an organic solvent; an additive comprising a compound including a carbon-carbon triple bond, a linear ether group, and a 4- or 5-membered cyclic ether group; and a sulfur compound including a sulfur-containing heterocyclic structure.

CASE, BATTERY, ELECTRIC DEVICE, AND METHOD FOR ASSEMBLING CASE

Absstract of: US2025385368A1

Provided are a case, a battery, an electric device and a method for assembling a case. The case comprises a frame and an end plate connected to the frame, wherein the end plate comprises a first connecting portion and a second connecting portion both facing the frame; a circumferential edge of the first connecting portion and a circumferential edge of the second connecting portion are both connected to the frame; and the whole circumferential edge of at least one of the first connecting portion and the second connecting portion is continuously in sealed connection with the frame. The end plate and the frame are connected in a dual-connection fastening method in which the first connecting portion and the second connecting portion are configured to respectively connect to the frame, such that the case has a simple structure, and has a high assembly efficiency, a low cost and good reliability.

PERFECTED BATTERY FOR VEHICLES, KIT AND METHOD FOR THE CONVERSION OF AN ENDOTHERMIC VEHICLE TO A HYBRID VEHICLE

Absstract of: US2025381831A1

The present invention relates to a perfected battery (1) for vehicles, comprising: a housing (2) bounded by a cover (3) and configured to receive inside: a battery pack (4) configured to store electrical energy and power a motor-alternator (8) of said vehicle, anda service battery (5) in electrical communication with said motor-alternator (8) and configured to: store electrical energy, andpower the services of the vehicle,an inverter (6) configured to: put said batteries (5, 6) and said motor-alternator (8) in electrical communication with each other,regulate the delivery of electrical energy from said battery pack (4) to said motor-alternator (8) so that the latter exerts a predefined driving torque on a transmission of the vehicle.

Insulating Coating Overlay Control System and Insulating Coating Overlay Control Method

Absstract of: US2025385238A1

An insulation-coating overlay control system, an electrode plate for a secondary battery, and an insulation-coating overlay control method are provided. The system includes an insulation coater configured to coat an insulating material to allow the insulating material to cover a partial region of a coated part and a non-coated part in an electrode plate along a boundary part. The coated part has an electrode slurry coated thereon and the non-coated part does not have the electrode slurry coated thereon. An insulation-coating width measuring means is configured to measure an overlay width. An insulation coater moving means is configured to move the insulation coater and a controller is configured to control the insulation coater moving means to adjust the overlay width by comparing the measured overlay width with a predetermined overlay width setting range or an overlay width reference value.

SILICON COMPOSITE MATERIAL AND PREPARATION METHOD THEREFOR, NEGATIVE ELECTRODE SHEET, SECONDARY BATTERY, AND ELECTRICAL APPARATUS

Absstract of: US2025385266A1

A silicon composite material and a preparation method therefor, a negative electrode sheet, a secondary battery, and an electrical apparatus. The silicon composite material comprises a one-dimensional conductive material, an inner core, and a coating layer, the outer surface of the inner core is coated with the coating layer, the one-dimensional conductive material is arranged on the outer surface of the coating layer, and the inner core comprises a silicon-based material. The silicon composite material has good cycle performance and fast charging performance.

SECONDARY BATTERY

Absstract of: US2025385270A1

A secondary battery, includes a cathode layer, a anode layer and an insulating layer. The insulating layer is located between the cathode layer and the anode layer; the thickness of the cathode layer is about 10 mm to about 1000 mm, and the thickness of the anode layer is about 5 mm to about 1000 mm; and the cathode layer includes a cathode current collector and a cathode material, the anode layer includes a anode current collector and a anode material, each of the cathode current collector and the anode current collector is of a three-dimensional porous structure, the absolute value of the difference between the thickness of the cathode current collector and the thickness of the cathode layer is less than about 5 mm, and the absolute value of the difference between the thickness of the anode current collector and the thickness of the anode layer is less than about 2 mm.

LITHIUM SECONDARY BATTERY

Absstract of: US2025385269A1

A lithium secondary battery according to embodiments of the present disclosure includes a cathode including a cathode active material and an anode including an anode active material. A ratio of a median particle diameter of the cathode active material to that of the anode active material may be adjusted within a predetermined range. In addition, a ratio of a span value of the cathode active material to that of the anode active material may be adjusted within a predetermined range.

LAYERED-OXIDE POSITIVE ELECTRODE ACTIVE MATERIAL AND POSITIVE ELECTRODE PLATE, SODIUM-ION BATTERY, AND ELECTRIC APPARATUS CONTAINING SAME

Absstract of: US2025385244A1

A layered-oxide positive electrode active material may have a molecular formula of NaxMnaFebNicMdNeO2-δQf, where a doping element M is selected from at least one of Cu, Li, Ti, Zr, K, Sb, Nb, Mg, Ca, Mo, Zn, Cr, W, Bi, Sn, Ge, or Al, a doping element N is selected from at least one of Si, P, B, S, or Se, a doping element Q is selected from at least one of F, Cl, or N, 0.66≤x≤1, 0

BATTERY CELL, BATTERY AND ELECTRICAL APPARATUS

Absstract of: US2025385267A1

The present application provides a battery cell, a battery, and an electrical apparatus; the battery cell comprises an electrode assembly and an electrolyte; the electrode assembly comprises a first electrode plate, a second electrode plate, and a separator; the polarities of the first electrode plate and the second electrode plate are opposite; the separator is arranged between the first electrode plate and the second electrode plate; at least one of the first electrode plate, the second electrode plate, and the separator comprises a lyophilic polymer; and the battery cell satisfies the following formula (I):0.01%≤yM-M′≤15⁢%.(I)

POSITIVE ELECTRODE, SECONDARY BATTERY, AND BATTERY PACK

Absstract of: US2025385243A1

A positive electrode includes a positive electrode current collector and a positive electrode active material layer. The positive electrode current collector extends in both a longitudinal direction and a width direction. The positive electrode active material layer includes a positive electrode active material and a positive electrode binder and is stacked on the positive electrode current collector. The positive electrode active material layer includes a first thin part and a first thick part. The first thick part has a thickness greater than a thickness of the first thin part and is adjacent to the first thin part in the longitudinal direction. A ratio of an abundance of the positive electrode binder to an abundance of the positive electrode active material in the first thin part is lower than that in the first thick part.

ENERGY STORAGE DEVICE

Absstract of: US2025385259A1

An energy storage device according to an aspect of the present invention includes an electrode assembly in which a positive electrode including a positive active material layer and a negative electrode including a negative active material layer are stacked with each other with a separator interposed therebetween, in which the positive active material layer contains a positive active material particle, and the positive active material particle has an internal porosity of 15% or less, and the negative active material layer contains a graphite particle, and the graphite particle has an internal porosity of 2% or less.

ELECTROCHEMICAL APPARATUS AND ELECTRICAL DEVICE

Absstract of: US2025385255A1

An electrochemical apparatus includes a positive active material layer and a negative active material layer, where the positive active material layer includes a positive active material, and the negative active material layer includes a negative active material. The electrochemical apparatus satisfies the formulas: 0.5≤(U0−U)/(1.06−CB)≤1.5; and CB=(A′×B′×C′)/(A×B×C); by controlling the relationship among the charge cut-off voltage U volt of the electrochemical apparatus, the Full-charge Voltage U0 volt of the battery, and the ratio CB of the negative electrode discharge capacity per unit area to the positive electrode discharge capacity per unit area, 0.5≤(U0−U)/(1.06−CB)≤1.5, the high-temperature performance of the electrochemical apparatus can be improved while a lithium plating window can be improved, thereby improving kinetic performance of the battery.

SECONDARY BATTERY AND PREPARATION METHOD THEREOF

Absstract of: US2025385239A1

Disclosed are a secondary battery and a preparation method thereof, including a preparation method for a negative electrode plate, the preparation method for the negative electrode plate includes: mixing a negative electrode active material, a conductive agent, and a binder uniformly in a solvent to form a slurry for a negative electrode active material layer; coating the slurry for the negative electrode active material layer on at least one surface of a negative electrode current collector to obtain a negative electrode plate to be calendered, which includes a negative electrode film formed by the slurry for the negative electrode active material layer; after calendering, forming the negative electrode plate, manufacturing a test cell using the negative electrode plate; manufacturing the secondary battery by combining the negative electrode plate, a positive electrode plate, a separator and an electrolyte solution; the secondary battery satisfies a relational formula: 0.9≤U×(1+r)/(ρ+7.4)/d/(1+5.3×ln(t))/1.335≤1.1.

FLUORIERTER POLYMERELEKTROLYT FÜR ELEKTROCHEMISCHE ZELLEN

Absstract of: DE102024123306A1

Ein fluorierter Gelpolymerelektrolyt für eine Fahrzeugbatteriezelle, eine Batteriezelle und ein Verfahren zur Herstellung eines fluorierten Gelpolymerelektrolyten. Der fluorierte Gelpolymerelektrolyt umfasst einen polymerisierten Gelpolymerelektrolyt-Vorläufer. Der Gelpolymerelektrolyt ist bei bis zu 150 Grad Celsius nicht flüchtig. Der Gelpolymerelektrolyt-Vorläufer enthält ein Lithiumsalz, das im Bereich von 10 bis 50 Gewichtsprozent des Gesamtgewichts des Gelpolymerelektrolyt-Vorläufers vorliegt, ein fluoriertes Monomer, das im Bereich von 10 bis 50 Gewichtsprozent des Gesamtgewichts des Gelpolymerelektrolyt-Vorläufers vorliegt, und ein nichtwässriges organisches Lösungsmittel, das im Bereich von 50 bis 90 Gewichtsprozent des Gesamtgewichts des Gelpolymerelektrolyt-Vorläufers vorliegt.

Deformationseinrichtung zur Anordnung in einem Hochvoltspeicher

Absstract of: DE102024116714A1

Die Erfindung betrifft eine Deformationseinrichtung (11) zur Anordnung in einem Hochvoltspeicher (10), wobei die Deformationseinrichtung (11) eine Grundplatte (51) und wenigstens ein an der Grundplatte (51) angeordnetes Deformationselement (21) aufweist, wobei das Deformationselement (21) eingerichtet ist, einen Hohlraum (31) auszubilden, welcher eingerichtet ist wenigstens bereichsweise eine mechanische und/ oder thermische Entkopplung zwischen wenigstens einer Batteriezelle (12) des Hochvoltspeichers (10) und einem die wenigstens eine Batteriezelle (12) wenigstens teilweise umgebenden Strukturmedium (14) bereitzustellen.

ENERGIESPEICHERSYSTEM

Absstract of: DE102024205521A1

Ein Energiespeichersystem umfasst wenigstens eine Kassette (1), die wenigstens einen Akkumulator enthält, Kontaktelemente, die es erlauben, die eine Kassette mit anderen, äußerlich gleichen Kassetten variabel elektrisch zu verbinden, und ein Gestell (24), in dem Einbauplätze (45) für Kassetten (1; 1a, 1b, 1c) definiert sind, in die die Kassette in einer Einführrichtung einführbar und entgegen der Einführrichtung entnehmbar ist. Die Kontaktelemente umfassen eine den Einbauplätzen gemeinsame, quer zur Einführrichtung orientierte Stromschiene (27) zum Laden und Entladen des wenigstens einen in der Kassette (1) enthaltenen Akkumulators. An einer der Stromschiene zugewandten Rückseite weist die Kassette (1) einen in Kontakt mit der Stromschiene (27) elastisch auslenkbaren Anschluss (11) auf. Verriegelungsmittel (50, 51, 54, 56, 60 sind) vorgesehen, um die Kassette (1) im Gestell (24) in einer Betriebsstellung lösbar zu fixieren, in der der Anschluss (11) an der Stromschiene (27) elastisch ausgelenkt ist.

Kühlgehäuse für Akkumulatoren in einem Kraftfahrzeug

Absstract of: DE102024117039A1

Die Erfindung betrifft Kühlgehäuse für Akkumulatoren in einem Kraftfahrzeug, umfassend, einen Deckel, eine Bodenplatte, eine erste Seitenwand, eine zweite Seitenwand und eine Rückwand, wodurch ein Aufnahmeraum für die Akkumulatoren gebildet ist, wobei das Kühlgehäuse weiterhin zumindest eine Innenwand umfasst, wobei der Aufnahmeraum durch die zumindest eine Innenwand in zwei Einschubfächer geteilt ist, und wobei jedes der zwei Einschubfächer dazu ausgebildet ist jeweils einen Akkumulator aufzunehmen, wobei die zumindest eine Innenwand als Plattenkühler ausgebildet ist.

Batteriezellanordnung

Absstract of: DE102024117043A1

Die vorliegende Erfindung betrifft eine Batteriezellanordnung (100) umfassend eine Batteriezelle (1) mit einer flexiblen Zellhülle (1.1) und eine Einstecheinrichtung (2), die eingerichtet ist, die flexible Zellhülle (1.1) bei Erreichen einer definierten Ausdehnung der Batteriezelle (1) einzustechen.

Servicegerät zum Ablassen und Auffüllen eines dielektrischen Temperierkreislaufs

Absstract of: DE102024116614A1

Die Erfindung betrifft ein Servicegerät zum Ablassen und Auffüllen eines dielektrischen Temperierkreislaufs eines Kraftfahrzeugs, aufweisend zumindest die folgenden Komponenten:- einen Reinigungskreislauf mit einem Auffangbehälter, einem Feuchtesensor und einem Wasserabscheider;- einen Reinbehälter;- einen in fluidischer Verbindung mit dem Auffangbehälter stehenden Ablassanschluss;- einen in fluidischer Verbindung mit dem Reinbehälter stehenden Auffüllanschluss; und- ein Schaltventil zum Schalten zwischen einem fluidisch geschlossenen Reinigungskreislauf und einer Ableitung aus dem Reinigungskreislauf in den Reinbehälter;wobei der Feuchtesensor stromabwärts des Wasserabscheiders in dem Reinigungskreislauf angeordnet ist, undwobei das Schaltventil entlang einer Durchströmungsrichtung zwischen dem Feuchtesensor und einem Rücklauf in den Auffangbehälter in dem Reinigungskreislauf angeordnet ist.Es ist ein Servicegerät für eine Temperierflüssigkeit eines Kraftfahrzeugs vorgeschlagen, welches ein besonders effizientes Reinigen der Temperierflüssigkeit ermöglicht.

STATIONÄRER ENERGIESPEICHER MIT GESTAPELTEN MODULEN

Absstract of: DE102025123667A1

Stationärer Energiespeicher mit zumindest zwei übereinander gestapelten Batteriemodulen (3,4), wobei die Batteriemodule jeweils eine Anzahl von Zellen (18,67,69) aufweisen, und eine Ladungsausgleichseinrichtung (75) vorgesehen ist, über welche die Ladungen in zumindest in einigen der Anzahl der Zellen ausgleichbar sind. Dabei ist zwischen den zumindest zwei Batteriemodulen eine elektrische Verbindung (68) zum Ladungsaustausch bzw. Ladungsausgleich vorgesehen ist, über die ein direkter Ladungsausgleich zwischen zumindest einer ersten Zelle (69) der Zellen des ersten Batteriemoduls 4 mit zumindest einer ersten Zelle (67) der Zellen des zweiten Batteriemoduls (3) herstellbar ist.

Batteriezelle und Batterieanordnung

Absstract of: DE102025144600A1

Die Erfindung betrifft eine Batteriezelle (1) mit einem Gehäuse (2), in dessen Innerem mindestens eine positive Elektrode (3) und mindestens eine negative Elektrode (4) durch mindestens eine Isolierfolie (5) getrennt voneinander in einem Elektrolyt (6) angeordnet sind, wobei die positive Elektrode (3) und die negative Elektrode (4) je einen Ableiter (7) aufweisen, wobei die Ableiter (7) jeweils über eine Leitung (8) mit einem im Inneren des Gehäuses (2) angeordneten Steuergerät (9) verbunden sind, das dazu konfiguriert ist, aus einer an den Elektroden (3, 4) anliegenden Gleichspannung eine hochfrequente Wechselspannung zu bilden und auf die Leitungen (8) aufzumodulieren, so dass diese als Antennen fungieren und elektrische Energie drahtlos nach außen senden.

FESTKÖRPERBATTERIE UND VERFAHREN ZUR HERSTELLUNG EINER FESTKÖRPERBATTERIE

Absstract of: DE102025122579A1

Eine Festkörperbatterie im Sinne der vorliegenden Offenbarung umfasst einen Elektrodenkörper und Stromsammlerstreifen, die mit dem Elektrodenkörper verbunden sind. Der Elektrodenkörper hat einen Positivelektrodenstromsammler, eine Positivelektrodenaktivmateriallage, eine Festelektrodenaktivmateriallage, eine Negativelektrodenaktivmateriallage und einen Negativelektrodenstromsammler. Die Festelektrolytlage hat eine Abstützung mit einer Vielzahl von Poren. Die Abstützung hat vorstehende Teile, die relativ zu den Endflächen der Positivelektrodenaktivmateriallage und der Negativelektrodenaktivmateriallage vorstehen. Die Anzahl der Poren in der Abstützung in den vorspringenden Teilen ist geringer als die Anzahl der Poren in der Abstützung im nicht vorspringenden Teil.

Zylindrische Sekundärbatterie

Absstract of: DE102025122842A1

Bereitgestellt ist eine zylindrische Sekundärbatterie, die ein Herausschleudern der Batterie wie ein Projektil aufgrund von Ausstoß von in der Batterie bei einer Batterieabnormalität erzeugtem Gas ausreichend verhindern kann und somit eine hervorragende Sicherheit aufweist. Eine zylindrische Sekundärbatterie, aufweisend: einen Elektrodenwickelkörper mit einer Struktur, bei der eine bandförmige Positivelektrode und eine bandförmige Negativelektrode mit einem dazwischen zwischengeordneten Separator gestapelt und gewickelt sind; eine Batteriedose, die den Elektrodenwickelkörper aufnimmt, wobei ein Endabschnitt geöffnet ist, während der Elektrodenwickelkörper aufgenommen ist; und eine Batterieabdeckung, die an dem einen Endabschnitt der Batteriedose bereitgestellt ist und zwei oder mehr Öffnungsabschnitte aufweist, wobei die zwei oder mehr Öffnungsabschnitte bei einer Drehung um mehr als 0° und weniger als 360° um eine Achse einer zylindrischen Form der Sekundärbatterie in der Draufsicht eine nicht-überlappende Form aufweisen, die sich nicht mit den zwei oder mehr Öffnungsabschnitten vor der Drehung überlappt, und die Batterieabdeckung an einer der Verbindungsstellen zwischen zwei benachbarten Öffnungsabschnitten der zwei oder mehr Öffnungsabschnitte eine Sollbruchstelle aufweist.

BATTERIEMODUL

Absstract of: DE102025119809A1

Offenbart ist ein Batteriemodul (10), welches einen Batteriestapel (100) mit einer Mehrzahl von gestapelten Batteriezellen (110) aufweist. Das Batteriemodul (10) weist ferner ein Pad-Element (120), ein Halteelement (200), welches an einer Seite des Batteriestapels (100) vorgesehen ist, eine Stromschiene (300), welche mit dem Halteelement (200) verbunden ist und elektrisch mit dem Batteriestapel (100) verbunden ist, und eine erste leitfähige Platte (400), welche so vorgesehen ist, dass sie der Stromschiene (300) gegenüberliegt, und ein wärmeleitfähiges Material aufweist, auf. Die Mehrzahl von Batteriezellen (110) weist jeweils einen Anschlussbereich (116) auf, welcher an der Stromschiene (300) fest angebracht ist. Die ersten leitfähigen Platte (400) ist so vorgesehen, dass sie der Stromschiene (300) gegenüberliegt, wobei der Anschlussbereich (116) dazwischen angeordnet ist, und die erste leitfähige Platte (400) ist fest an dem Anschlussbereich (116) oder der Stromschiene (300) angebracht ist.

Thermomodul, indirektes Wärmetransportmittelkreis(lauf)system und Elektrofahrzeug

Absstract of: DE102024205426A1

Die Erfindung betrifft ein Thermomodul (TM) für ein Flüssigkeitskreis(lauf)system (6) eines Elektrofahrzeugs.Dabei sind an ein Gehäuse des Thermomoduls (TM) wenigstens eine Wärmequelle und wenigstens eine Wärmesenke über zugeordnete mit dem Gehäuse verbindbare Flüssigkeitsleitungen anschließbar.Durch das Gehäuse sind dabei wenigstens eine erste elektrische Flüssigkeitspumpe (EWP1) zur Förderung von Flüssigkeit in einem Flüssigkeitskühlkreis(lauf) (KK) sowie wenigstens eine zweite elektrische Flüssigkeitspumpe (EWP2) zur Förderung von Flüssigkeit im Flüssigkeitsheizkreis(lauf) (HK) und ein Ventilsystem aufgenommen.Das Ventilsystem ist dabei in einzelne Kühlmodi (ein)stellbar, in welchen die Flüssigkeit des Flüssigkeitskühlkreis(lauf)s (KK) über den Verdampfer (8) und dabei wahlweise über wenigstens einen zweiten Wärmetauscher (14) zum Kühlen einer Fahrzeugkabine und / oder wenigstens eine Batterie (B) führbar ist.Die Erfindung betrifft zudem ein indirektes Wärmetransportmittelkreis(lauf)system und ein Elektrofahrzeug.

BATTERIEZELLE MIT EINER ODER MEHREREN BARRIEREBESCHICHTUNGEN

Absstract of: DE102024122038A1

Batteriezelle mit einem Hauptkörper, wobei der Hauptkörper eine Innenwand, die eine Kammer definiert, und eine der Innenwand gegenüberliegende Außenwand umfasst. Die Batteriezelle umfasst ferner in der Kammer angeordnete Batterieeinbauten und eine oder mehrere Barrierebeschichtungen, die auf der Innen- und/oder Außenwand angeordnet sind. Die eine oder die mehreren Barrierebeschichtungen weisen bei einem ersten thermischen Zustand eine erste Wärmeleitfähigkeit und bei einem zweiten thermischen Zustand eine zweite Wärmeleitfähigkeit auf.

Verfahren zur Überwachung eines Hochvoltspeichers eines Kraftfahrzeugs

Absstract of: DE102024116971A1

Die Erfindung betrifft ein Verfahren (100) zur Überwachung eines Hochvoltspeichers (11) eines Kraftfahrzeugs (10), aufweisend Schritte des Anregens eines Gehäuses (12) des Hochvoltspeichers (11) mit wenigstens einem Eingangssignal (SE); des Erfassens eines Ausgangsignals (SA) am Gehäuse (12) mittels wenigstens einer Erfassungseinrichtung (22); und des Bestimmen einer physischen Veränderung (14) des Gehäuses (12) des Hochvoltspeichers (11) auf Basis des erfassten Ausgangsignals (SA).

Batteriezellengehäuse

Absstract of: DE102024117042A1

Die Erfindung betrifft ein Batteriezellengehäuse (1) einer Batteriezelle (2), insbesondere einer Batterie eines Kraftfahrzeugs, mit einer umlaufenden Wandung (7), welche den Innenraum der Batteriezelle (2) von einem Außenraum trennt, wobei die umlaufende Wandung (7) einzelne Flächenbereiche (3) aufweist, die zusammenhängend miteinander verbunden ausgebildet sind, wobei zumindest einer der Flächenbereiche (3) durch ein Verstärkungselement (6) zumindest teilweise verstärkt ausgebildet ist.

Elektrischer Energiespeicher

Absstract of: DE102025141660A1

Die Erfindung betrifft einen elektrischen Energiespeicher (1) für ein Fahrzeug mit einer Mehrzahl in einem Gehäuse (2) angeordneter, elektrisch verschalteter Einzelzellen (3). Erfindungsgemäß ist vorgesehen, dass ein Innenraum des Gehäuses (2) mit einem Druckbehälter (4) mit einem Kühl- und/oder Löschmedium (5) gekoppelt ist und der Druckbehälter (4) ausgebildet ist, das Kühl- und/oder Löschmedium (5) bei einem erfassten thermischen Durchgehen einer Einzelzelle zur aktiven Kühlung der Einzelzellen (3) in dem Innenraum des Gehäuses (2) automatisch freizusetzen.

Kontaktsystem

Absstract of: DE102024116658A1

Kontaktsystem (10) zum elektrischen Kontaktieren eines oder mehrerer Prüflinge (P), insbesondere einer Batteriezelle an vorgesehenen Testpunkten für Hochstromanwendungen und/oder bei der Batterieherstellung, umfassend wenigstens ein, bevorzugt eine Vielzahl von, Prüfkontaktelementen (1) mit einem hülsenförmigen Gehäuse (2) und einem wenigstens abschnittsweise in dem Gehäuse (2) axial beweglich geführten, vorzugsweise federkraftbeaufschlagten Prüfkontaktkopf (3) zum elektrischen Kontaktieren des Prüflings (P), wobei der Prüfkontaktkopf (3) eine, vorzugsweise zentrale, Ausnehmung (4) zur Aufnahme eines darin axial beweglich geführten Innen- und/oder Senseleiters (5) aufweist, wobei der Prüfkontaktkopf (3) einen rückseitigen, vorzugsweise zylindrischen Abschnitt (3b) aufweist, welcher in dem hülsenförmigen Gehäuse (2) geführt ist, und wobei der Prüfkontaktkopf (3) durch eine an dem zylindrischen Abschnitt (3b) und/oder am hülsenförmigen Gehäuse (2) angeordnete Kontaktierungseinrichtung (6) mit dem hülsenförmigen Gehäuse (2) stromleitend verbunden ist, wobei dass das Kontaktsystem (10) ein rückseitig am Prüfkontaktelement (1) angeordnetes, stromleitendes Verbindungselement (11) in Form einer Stromschiene aufweist, in welcher das hülsenförmige Gehäuse (2) positionsfest und stromleitend gelagert ist.

Batteriesystem für ein Kraftfahrzeug sowie Kraftfahrzeug mit einem Batteriesystem

Absstract of: DE102024205032A1

Ein erfindungsgemäßes Batteriesystem (16) für ein Kraftfahrzeug (10) weist ein Batteriegehäuse (18) und mindestens einen Längsträger (20) auf, der sich in Längsrichtung durch das Batteriegehäuse (18) erstreckt. Ferner weist das Batteriesystem (16) mindestens einen Querträger (22) auf, der sich in Fahrzeugquerrichtung durch das Batteriegehäuse (18) erstreckt und Batteriezellen oder Batteriemodule, die in dem Batteriegehäuse (18) angeordnet sind. Zusätzlich ist mindestens eine der folgenden Verbindungen gebildet:a) der mindestens eine Längsträger (20) ist mit unmittelbar benachbart angeordneten Batteriezellen oder Batteriemodulen fest verbunden,b) der mindestens eine Querträger (22) ist mit unmittelbar benachbart angeordneten Batteriezellen oder Batteriemodulen fest verbunden,c) der mindestens eine Querträger (22) ist den mindestens einen Längsträger (20) kreuzend angeordnet und im Kreuzungsbereich fest mit diesem verbunden.

Verfahren zum Erzeugen einer Kanalstruktur in einem Gehäuse einer Wärmetauschereinheit, sowie Wärmetauschereinheit, insbesondere für eine Hochvolt-Batterie

Absstract of: DE102024116759A1

Die Erfindung betrifft ein Verfahren zum Erzeugen einer Kanalstruktur (12) in einem Gehäuse einer Wärmetauschereinheit (20). Dabei wird eine zur Kanalstruktur (12) geometrisch korrespondierende Kernstruktur (10) aus einem pulverförmigen und/oder granularem Material (14) und einem Bindemittel (16) erzeugt, das Gehäuse (24) der Wärmetauschereinheit (20) derart ausgebildet, dass die Kernstruktur (10) in einem Inneren (34) des Gehäuses (24) eingeschlossen ist und mindestens eine Zugangsöffnung (30) in der Wärmetauschereinheit (20) zwischen einer Umgebung und dem Inneren (34) der Wärmetauschereinheit (20) bereitgestellt ist und die Kernstruktur (10) durch Zerkleinern und/oder Verflüssigen verändert und die veränderte Kernstruktur (10) aus dem Inneren (34) durch die mindestens eine Zugangsöffnung (30) entfernt.

Sicherheitssystem für eine Batterieeinrichtung für ein wenigstens teilweise elektrisch angetriebenes Kraftfahrzeug und Batterieeinrichtung

Absstract of: DE102024117049A1

Sicherheitssystem (1) für eine Batterieeinrichtung (2) für ein wenigstens teilweise elektrisch angetriebenes Kraftfahrzeug (10) mit einem Störfallüberwachungssystem (3) zur Erkennung eines thermischen Durchgehens einer Batterieeinheit (12) der Batterieeinrichtung (2). Dabei erkennt das Störfallüberwachungssystem (3) das thermische Durchgehen aufgrund eines mittels einer Auslöseeinheit (4) provozierten Isolationsfehlers. Die Auslöseeinheit (4) provoziert den Isolationsfehler mittels wenigstens einer Kontaktstruktur (14), welche durch die Wärmeeinwirkung des thermischen Durchgehens ihre Form definiert ändert und dadurch einen Kontakt zwischen wenigstens zwei im Normalbetrieb voneinander isolierten Batteriekomponenten (5, 15) herstellt.

Hitzeschutzeinrichtung für Batteriezellen eines Hochvoltspeichers

Absstract of: DE102024116389A1

Die Erfindung betrifft eine Hitzeschutzeinrichtung (11) für Batteriezellen (21, 22) eines Hochvoltspeichers (10), aufweisend wenigstens ein zwischen zwei Batteriezellen (21, 22) anordenbares Hitzeschutzelement, wobei das Hitzeschutzelement (13, 14) mittels wenigstens einer Halteeinrichtung (23) der Hitzeschutzeinrichtung (11) zwischen den Batteriezellen (21, 22) gelagert ist.

Leistungsspeichervorrichtung

Absstract of: DE102025122967A1

Eine Leistungsspeichervorrichtung (10) umfasst: einen ersten Leistungsspeicherstapel (11) mit einer Vielzahl von Leistungsspeicherzellen (100); einen zweiten Leistungsspeicherstapel (12) mit einer Vielzahl von Leistungsspeicherzellen (100); und eine Trennwand (240), die den ersten und den zweiten Leistungsspeicherstapel voneinander trennt. Die Leistungsspeicherzellen (100) umfassen jeweils einen Zellenhauptkörper (110) und einen externen Anschluss (120). Die Trennwand (240) umfasst: einen oberen Trennabschnitt (241), der sich an einer höheren Position als der externe Anschluss befindet; einen unteren Trennabschnitt (242), der sich an einer niedrigeren Position als der externe Anschluss befindet; und einen Verbindungsabschnitt (243), der sich zwischen einem Paar der externen Anschlüsse (120) befindet, die in der zweiten Richtung aneinandergrenzen, und der den oberen und den unteren Trennabschnitt miteinander verbindet. Eine Breite des Verbindungsabschnitts (243) ist kleiner als eine Breite des oberen Trennabschnitts (241) und eine Breite des unteren Trennabschnitts (242).

Thermomodul, indirektes Wärmetransportmittelkreis(lauf)system und Elektrofahrzeug

Absstract of: DE102024205424A1

Die Erfindung betrifft ein Thermomodul (TM) für ein Flüssigkeitskreis(lauf)system (6) eines Elektrofahrzeugs.Dabei sind an ein Gehäuse des Thermomoduls (TM) wenigstens eine Wärmequelle und wenigstens eine Wärmesenke über zugeordnete mit dem Gehäuse verbindbare Flüssigkeitsleitungen anschließbar.Durch das Gehäuse sind dabei wenigstens eine erste elektrische Flüssigkeitspumpe (EWP1) zur Förderung von Flüssigkeit in einem Flüssigkeitskühlkreis(lauf) (KK) sowie wenigstens eine zweite elektrische Flüssigkeitspumpe (EWP2) zur Förderung von Flüssigkeit im Flüssigkeitsheizkreis(lauf) (HK) und ein Ventilsystem aufgenommen.Das Ventilsystem ist dabei in einzelne Heizmodi (ein)stellbar, in welchen die Flüssigkeit des Flüssigkeitsheizkreis(lauf)s (HK) wahlweise über wenigstens einen ersten Wärmetauscher (12) zum Heizen einer Fahrzeugkabine und / oder wenigstens eine Batterie (B) führbar ist.Die Erfindung betrifft zudem ein ein indirektes Wärmetransportmittelkreis(lauf)system und ein Elektrofahrzeug.

APPARATUS FOR WINDING A STACK OF ELECTRODES IN A MACHINE FOR MANUFACTURING ELECTRICAL ENERGY STORAGE DEVICES

Absstract of: WO2025257870A1

The apparatus for winding a stack of electrodes is associated with a machine for manufacturing electrical energy storage devices of the type comprising a stack of electrodes formed by folding a flexible strip (2) comprising at least one separator element (20) and a series of anode and cathode elements, applied alternately on said separator element (20). The apparatus comprises means (5) for accumulating a head portion of the separator strip (20) intended to wind the stack of electrodes (10) at the end of the formation of the stack of electrodes (10) on a stacking plane (4). Means (6) for gripping and transferring the stack of electrodes (10) formed on the stacking plane (4) are movable between a first position for gripping the stack of electrodes (10) at said stacking plane (4) and a second position for transferring the same stack of electrodes (10) to winding means (7). The winding means (7) comprise a rotatable member (70) configured to receive the stack of electrodes (10) at the winding station and to be rotated to wind said head portion of the separator strip (20) onto the stack of electrodes (10).

APPARATUS FOR FORMING A STACK OF ELECTRODES FOR USE IN MANIFACTURING ELECTRIC ENERGY STORAGE DEVICES

Absstract of: WO2025257869A1

The apparatus for forming a stack of electrodes is associated with a machine for manufacturing electrical energy storage devices, of the type comprising a stack of electrodes formed by folding a flexible strip (2) comprising at least one separator element (20), a series of anode elements (21) and a series of cathode elements (22), applied alternately on said separator element (20). The apparatus comprises feed means (10) for advancing said flexible strip (2) along a feed direction (A) on a feed plane and folding means (3) suitable to be operated in a suitable step relationship to perform a series of folds orthogonal to the feed direction on said flexible strip (2) and to deposit the flexible strip (2) thus folded on a stacking plane (4). The apparatus comprises rotatable means (5) capable of being driven in continuous rotation and having distributed peripherally a plurality of devices (55, 56) for collecting and transferring said anode and cathode elements (21, 22) on the flexible strip (2) in the folding step onto the stacking plane (4).

LIGHT-CURABLE COMPOSITION AND ASSEMBLY

Absstract of: WO2025257676A1

Provided is a light-curable composition useful as potting compositions in battery assemblies. The composition comprises, optionally, one or more monofunctional (meth)acrylate monomers, a crosslinker selected from multifunctional oligomeric (meth)acrylates, aliphatic urethane (meth)acrylates, aromatic urethane (meth)acrylates, polyester (meth)acrylates, and epoxy (meth)acrylates, one or more adhesion promoters selected from glycidyl (meth)acrylate, 2-hydroxyethyl (meth)acrylate acid phosphate, phosphonate ester-containing (meth)acrylic monomer, phosphate ester-containing (meth)acrylic monomer, silane, and (meth)acrylic acid. The composition further includes a photoinitiator, a flame retardant, and one or more hollow fillers.

BATTERIEMODUL UND BATTERIEPACK DAMIT

Absstract of: DE102025119756A1

Ein Batteriemodul (10) ist offenbart. Das Batteriemodul (10) weist auf: einen Batteriestapel (100) mit einer Mehrzahl von Batteriezellen (110), welche in einer ersten Richtung (D1) gestapelt sind, und mindestens einem Pad-Element (120), welches zwischen der Mehrzahl von Batteriezellen (110) vorgesehen ist, und ein Wärmeübertragungselement (200). Das Wärmeübertragungselement (200) ist an einer Seite des Batteriestapels (100) vorgesehen und ist in Kontakt mit dem Batteriestapel (100) stehend vorgesehen. Die Mehrzahl von Batteriezellen (110) erstreckt sich in einer zweiten Richtung (D2), welche die erste Richtung (D1) schneidet. Das Wärmeübertragungselement (200) ist an einer Seite des Batteriestapels (100) in einer dritten Richtung (D3) vorgesehen, welche die erste und die zweite Richtung (D1, D2) schneidet. Das Wärmeübertragungselement (200) weist ein erstes und ein zweites Wärmeübertragungselement (210, 220) auf, welche in Form unterschiedlicher Materialien vorgesehen sind.

Batteriemodul mit Zwischenzellkühlfunktion

Absstract of: DE102024116394A1

Die Erfindung betrifft ein Batteriemodul (10) mit einem Zellstapel (16), der mindestens eine prismatische erste Batteriezelle (12a) aufweist und mindestens eine prismatische zweite Batteriezelle (12b) aufweist, wobei die erste Batteriezelle (12a) ein erstes Zellgehäuse (18a) mit einer ersten Gehäuseseite (20a) umfasst, die eine außenseitige erste Oberfläche (22a) aufweist, die ein erstes Rillenmuster (24a) aufweist, das erste vertiefte Bereiche (26a) und zweite erhabene Bereiche(28a) aufweist, die jeweils in eine ersten Richtung (y) langgestreckt verlaufen, wobei die ersten und zweiten Bereiche (26a, 28a) in einer zweiten Richtung (z) abwechselnd nebeneinander verlaufen. Dabei umfasst der Zellstapel (16) eine von einem Kühlmittel durchströmbare erste Kühlplatte (14a), die zwischen der ersten Batteriezelle (12a) und der zweiten Batteriezelle (12b) angeordnet ist, wobei die erste Kühlplatte (14a) eine erste Kühlseite (30a) umfasst, die der ersten Gehäuseseite (20a) zugewandt ist, wobei die erste Kühlseite (30a) ein zum ersten Rillenmuster (24a) komplementäres zweites Rillenmuster (24b) aufweist.

BATTERIEMODUL

Absstract of: DE102025122946A1

Batteriemodul, welches einen Batteriestapel, welcher eine Mehrzahl von Batterien aufweist, welche entlang einer ersten Achse gestapelt sind, und ein Erfassungsmodul (200), welches mit einer Seite des Batteriestapels gekoppelt ist, aufweist. Das Erfassungsmodul (200) kann einen Substratteil (210), welcher oberhalb des Batteriestapels bereitgestellt ist, und einen Temperaturerfassungsteil (220), welcher mit einer Seite des Substratteils (210) verbunden ist und welcher eine Seite hat, welche bereitgestellt ist, um mit dem Batteriestapel in Kontakt zu sein, aufweisen.

VERFAHREN ZUM STEUERN EINES LADEVORGANGS EINER BATTERIE EINES FAHRZEUGS

Absstract of: DE102024116903A1

Die Erfindung betrifft ein, insbesondere computerimplementiertes, Verfahren zum Steuern eines Ladevorgangs einer Batterie eines Fahrzeugs, insbesondere Hybridfahrzeug oder Elektrofahrzeug, aufweisend: (i) Ermitteln eines aktuellen Ladezustands der Batterie; (ii) Durchführen eines ersten Ladevorgangs zum Laden der Batterie von dem aktuellen Ladezustand bis zu einem ersten Ladezustand von im Wesentlichen 80%, wenn der aktuelle Ladezustand um wenigstens einen vorgegeben Wert, insbesondere wenigstens 5%, kleiner als 80% ist; (iii) Ermitteln einer Mobilitätscharakteristik des Fahrzeugs unter Verwendung von charakterisierenden Merkmalen von zeitlich früheren Fahrzeugbewegungen innerhalb eines vorgegebenen vorangehenden Zeitraums; (iv) Schätzen eines zeitlich nächsten Abfahrtszeitpunkts des Fahrzeugs, der zeitlich nach dem ersten Ladevorgang liegt, unter Verwendung der ermittelten Mobilitätscharakteristik; (v) Ermitteln eines erforderlichen Zeitraums für das Durchführen eines zweiten Ladevorgangs der Batterie ausgehend von dem Ladezustand nach dem ersten Ladevorgang bis zu einem Ladezustand von im Wesentlichen 100%; (vi) Schätzen eines Ladestartzeitpunkts für den Start des zweiten Ladevorgangs, unter Berücksichtigung des ermittelten Zeitraums für den zweiten Ladevorgang und des geschätzten Abfahrtszeitpunkts, derart, dass der zweite Ladevorgang zum geschätzten Abfahrtszeitpunkt beendet ist; Durchführen des zweiten Ladevorgangs, wobei der zweite Ladevorgang zum geschä

ELECTROCHEMICAL APPARATUS AND ELECTRONIC APPARATUS

Absstract of: WO2025256216A1

Provided in the present application are an electrochemical apparatus and an electronic apparatus. The electrochemical apparatus comprises a negative electrode sheet and an electrolyte, the negative electrode sheet comprising a negative electrode material layer; the negative electrode material layer comprises a silicon element, on the basis of the total mass of the negative electrode material layer, the mass percentage content of silicon being 20%-50%; the electrolyte comprises a compound of formula (I) and ethylene carbonate, on the basis of the total mass of the electrolyte, the mass percentage content of the ethylene carbonate being 5%-40%. The negative electrode material layer comprises the silicon element, and the electrolyte comprises the compound of formula (I) and the ethylene carbonate. Controlling the mass percentage content of the silicon element and the ethylene carbonate to be within the described ranges helps to improve the ion transport performance and stability of solid-state electrolyte interfaces, thus improving the charging/discharging efficiency and cyclic stability of electrochemical apparatuses.

NEGATIVE ELECTRODE SHEET, LITHIUM-ION BATTERY AND ELECTRIC APPARATUS

Absstract of: WO2025256229A1

A negative electrode sheet, a lithium-ion battery and an electric apparatus. The negative electrode sheet comprises a current collector and an active layer arranged on the surface of the current collector, wherein the active layer comprises an inner active layer and an outer active layer, which are stacked, the outer active layer being arranged on the side of the inner active layer away from the current collector; the inner active layer comprises a first active material; the outer active layer comprises a second active material; and the first active material includes silicon monoxide and/or stannous oxide, and the second active material includes silicon.

Electrolyte for Lithium-ion Batteries Under Extreme Operating Conditions

Absstract of: US2025385297A1

This present disclosure is directed to electrolyte compositions for Li-ion batteries, the preparation of said batteries, and uses thereof. Examples of electrolyte compositions disclosed herein allow for Li-ion battery use in extreme operating conditions over a wide temperature range, allowing for efficient use at both high and low temperatures.

CURRENT COLLECTOR, PREPARATION METHOD THEREOF, ELECTRODE PLATE, BATTERY, AND ELECTRICAL APPARATUS

Absstract of: US2025385322A1

The present application discloses a current collector, a preparation method thereof, an electrode plate, a battery, and an electrical apparatus. The current collector comprises a densified carbon nanotube film layer and a metal layer bonded to a surface of the densified carbon nanotube film layer. Compared to a commercial metal foil, the current collector provided in the present application has a weight which is 15% to 19% of a weight of a commercial metal foil and has a thickness which is 24% to 32% of a thickness of the commercial metal foil; while exhibiting similar electrical conductivity, electrochemical stability, and obviously higher mechanical strength and flexibility; and a battery using the current collector achieve increases in gravimetric energy density and volumetric energy density by 10.2% to 25.7% and 5.1% to 11.45%, respectively.

PRESSURIZATION DEVICE FOR SECONDARY BATTERY

Absstract of: US2025385295A1

The present invention provides a pressurization device for a secondary battery that can be used multiple times. As one embodiment, as a device for pressurizing an electrode unit in which an electrolyte is stacked between electrode plates, disclosed is a pressurization device for a secondary battery, comprising: a die having a cavity accommodating the electrode unit; a sealing container having an opening and accommodating the die in an inner space; and a sealing cover engaged with the opening of the sealing container and sealing the electrode unit with the sealing container, wherein the sealing cover under the sealing container is composed of an elastic member

Secondary Battery And Method For Manufacturing The Same

Absstract of: US2025385293A1

The present invention relates to a secondary battery in which an electrode tab is improved in mechanical strength and a method for manufacturing the same. Also, the secondary battery according to the present invention includes: an electrode provided with a coating portion coated with an active material on an electrode collector and a non-coating portion on which the active material is not applied to the electrode collector in a longitudinal direction of the electrode collector and a notching tab part extending from the coating portion in a width direction of the electrode collector without coating with the active material and overlapping each other to form two or more layers when the electrode is wound.

METHOD FOR RECYCLING WASTE LITHIUM-ION SECONDARY BATTERY AND RAW MATERIAL FOR LITHIUM-ION SECONDARY BATTERY POSITIVE ELECTRODE MATERIAL OBTAINABLE THEREBY

Absstract of: US2025385330A1

A method for recycling a waste lithium-ion secondary battery includes (a) loading an object to be heat-treated, which is at least a part of a waste lithium-ion secondary battery including a positive electrode material, into a heat-treatment furnace, (b) increasing the temperature inside the heat-treatment furnace to a range of 200° C. to 400° C., (c) maintaining the increased temperature, and (d) discharging first powder produced after the completion of the heat treatment of the waste lithium-ion secondary battery, wherein the first powder includes valuable metal powder containing a valuable metal composition of the positive electrode material.

CELL WELDING STRUCTURE, WELDING METHOD, AND BATTERY

Absstract of: WO2025255898A1

The present application relates to the technical field of batteries, and provides a cell welding structure, a welding method, and a battery. The cell welding structure comprises: a winding body; a plurality of tab groups formed at an end portion of the winding body, the plurality of tab groups being radially arranged around the center of the winding body; and a current collector, welded to the side of the plurality of tab groups facing away from the winding body to form a plurality of welding spots. The present application can improve the uniformity of current conduction between die-cut tabs and electrode sheets, reduce the amount of current loss, reduce the number of welding spots, and improve work efficiency.

METHOD FOR PREPARING NANO-SODIUM VANADIUM PHOSPHATE MATERIAL

Absstract of: WO2025255774A1

The present invention relates to a method for preparing a nanometer sodium vanadium phosphate material, comprising the following preparation steps: 1) weighing raw materials, the raw materials consisting of a tetravalent vanadium compound, a sodium phosphate salt and sodium fluoride, or the raw materials consisting of a tetravalent vanadium compound and a sodium phosphate salt; and 2) placing the raw materials in a high-speed homogenizing mill to complete a rapid nucleation process and control a crystal growth process. The present invention takes use of the principle of atom economy, and uses the milling device having a high power and a high rotation speed to perform efficient preparation of the nanometer sodium vanadium phosphate. The present invention achieves efficient atom utilization of the raw materials, and avoids generation of unnecessary waste materials and waste of the raw materials, which omits waste liquid treatment steps involved in solvent emission and washing processes, thereby achieving green preparation. On the basis of the milling device having a high power and a high rotation speed, high-speed collision is achieved to accelerate the reaction and to efficiently control the particle size of the product, thereby achieving nano-scale preparation. The present invention has the advantages of simple operation, high efficiency, easy industrial scale-up production and the like and helps to promote the research, popularization and application of the sodium vanadium p

RESIN POLYMER, RESIN COMPOSITION AND PREPARATION METHOD THEREFOR, MODIFIED BINDER, ELECTRODE SLURRY, ELECTRODE SHEET, AND BATTERY

Absstract of: WO2025255777A1

A resin polymer, a resin composition and a preparation method therefor, a modified binder, an electrode slurry, an electrode sheet, and a battery. The resin polymer is a linear polymer or a branched polymer. When the resin polymer is a linear polymer, the resin polymer has a backbone composed of repeating unit a, repeating unit b1, repeating unit c, and repeating unit d. When the resin polymer is a branched polymer, the resin polymer has a backbone composed of repeating unit a, repeating unit b2, repeating unit c, and repeating unit d. The repeating unit b2 contains branched chain E, and the branched chain E contains one or more of the repeating unit a, the repeating unit b1, the repeating unit c, and the repeating unit d. An electrode sheet prepared from the resin polymer and the resin composition has excellent tensile strength, elastic modulus, and corrosion resistance, and a battery prepared from the electrode sheet has a long cycle life.

POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY AND METHOD FOR PRODUCING SAME

Absstract of: WO2025259037A1

Provided is a positive electrode active material in the form of secondary particles in which primary particles comprising a lithium transition metal composite oxide are aggregated. The lithium transition metal composite oxide comprises lithium, nickel, and manganese, and additionally comprises molybdenum as a doping element, wherein the molar content of manganese in the lithium transition metal composite oxide is greater than the molar content of nickel. The primary particles have an average particle size of 0.5 μm to 1.5 μm, and the secondary particles have a particle size (D50) of 1.0 μm to 2.5 μm. The positive electrode active material has a large particle size, compression density, and the like even though prepared by sintering at a lower temperature by doping molybdenum, and when the positive electrode active material is applied to an electrode, the average voltage and energy density can be improved.

POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, AND METHOD FOR PRODUCING SAME

Absstract of: WO2025259035A1

Provided is a positive electrode active material in the form of secondary particles in which primary particles including a lithium transition metal composite oxide are aggregated. The lithium transition metal composite oxide contains lithium, nickel, and manganese, wherein the molar content of manganese is greater than that of nickel. The primary particles have an average particle size of 50 nm to 500 nm, and the secondary particles have a particle size (D50) of 0.5 ㎛ to 1.5 ㎛. With the characteristics such as particle size, specific surface area, etc., the positive electrode active material can improve battery performance when applied to electrodes, for example by increasing initial discharge capacity and reducing internal resistance.

SYSTEMS AND DEVICES FOR PROTECTING BATTERIES

Absstract of: WO2025259634A1

Lithium-ion batteries, battery modules and battery packs are provided that comprise anti-propagation systems designed to mitigate a thermal runaway condition. A battery module comprises a housing comprising a plurality of lithium-ion battery cells each having a positive terminal and a negative terminal, and a flexible container housing a liquid and positioned adjacent to the positive terminal of at least one of the battery cells. The flexible container comprises a material configured to melt at a temperature at or above a threshold temperature for quenching a thermal runaway event in the battery pack to prevent the thermal runaway from propagating and spreading to other battery cells or modules within the pack. The battery module comprises a reinforcement substrate secured to the flexible container. The reinforcement substrate provides structural rigidity to the flexible container and functions to inhibit thermal runaway eject from passing therethrough to other battery modules within the battery pack.

AIR DANCER FOR HIGH-SPEED WEB TRANSFER SYSTEM

Absstract of: WO2025259041A1

Disclosed is an air dancer for a high-speed web transfer system, comprising: a web guide unit having an upper roll and a lower roll installed on a web transfer path to be freely rotatable while facing each other in the vertical direction along the web transfer direction, thereby guiding webs in the transfer direction; and a tension control unit for controlling the tension of webs by applying a negative pressure to webs passing between the upper roll and the lower roll.

ELECTRODE PLATE PICK-AND-PLACE DEVICE

Absstract of: WO2025259042A1

Disclosed is an electrode plate pick-and-place device comprising: an suction plate for picking up an electrode plate from the preceding device and placing the picked-up electrode plate on the succeeding device; a rotation driving unit for allowing the suction plate to pick up the electrode plate and rotate forward and backward to place the picked-up electrode plate; and a transfer unit for transferring the suction plate to an electrode plate pickup position and a place position.

SECONDARY BATTERY AND ELECTRONIC APPARATUS

Absstract of: WO2025256204A1

Provided in the present application are a secondary battery and an electronic apparatus. The secondary battery comprises a positive electrode and an electrolyte. The positive electrode comprises a lithium composite metal oxide, a binder, and an inorganic additive. A metal element in the inorganic additive comprises at least one of aluminum, magnesium, titanium, zirconium, niobium, indium, tungsten, tin, zinc, or antimony. The electrolyte comprises fluoroethylene carbonate, a nitrogen-containing lithium salt, and propyl propionate. In the secondary battery provided in the present application, when, on the basis of the mass of the electrolyte, the total mass percentage content of the fluoroethylene carbonate and the nitrogen-containing lithium salt is 0.76% by mass or more, but 10.17% by mass or less, and the mass percentage content of the propyl propionate is 12% by mass or more, but 65% by mass or less, the lithium-ion acceptance of the secondary battery at a low temperature can be improved, an increase in the initial electric resistance thereof at a low temperature can be inhibited, and the high-temperature performance of the secondary battery can also be improved.

BATTERY AND ELECTRIC APPARATUS

Absstract of: WO2025256172A1

Disclosed in the present application are a battery and an electric apparatus. The battery comprises battery cells and busbar components, wherein each battery cell comprises a casing and electrode terminals, the casing having a first wall, and the electrode terminals being arranged on the first wall; the busbar components are connected to the electrode terminals, and the busbar components are configured to electrically connect the plurality of battery cells; and each busbar component is provided with an accommodating portion, and at least part of each electrode terminal is accommodated in the accommodating portion. In the direction of thickness of the first wall, the electrode terminals and the busbar components can share part of the space, thereby increasing the space utilization rate and increasing the energy density of the battery.

SECONDARY BATTERY AND ELECTRONIC DEVICE

Absstract of: WO2025256205A1

Disclosed in the present application are a secondary battery and an electronic device. The secondary battery comprises an electrolyte and a separator, wherein the separator comprises a polyolefin substrate and a coating disposed on at least one surface of the polyolefin substrate, the coating comprising inorganic particles; and the electrolyte contains specific amounts of an ether nitrile, butanedinitrile, a propionate and a boron-containing lithium salt. In the present application, by setting the total content of the ether nitrile, the butanedinitrile and the propionate in the electrolyte within a specific range and setting the total content of the butanedinitrile and the boron-containing lithium salt within a specific range, the decomposition of the ether nitrile and the propionate is inhibited, and the formation of a stable coating film therefrom on a surface of a positive electrode is facilitated; therefore, not only can the heat resistance of the separator be improved, but the safety performance and vibration resistance of the secondary battery can also be significantly improved.

CHALCOGEN-HALIDE SOLID ELECTROLYTES FOR LITHIUM OR SODIUM BATTERIES

Absstract of: US2025385301A1

Described herein is a chalcogen-halide solid electrolyte material represented by the following chemical formula: LiAxEyGz, or NaAxEyGz. In embodiments, A denotes one or more elements selected from the group consisting of magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), Lanthanum (La), cerium (Ce), samarium (Sm), and boron (B). In embodiments, E denotes one or more chalcogen elements. In embodiments, G denotes one or more halide elements. In embodiments, the following mathematical formula is satisfied: 0

Secondary Battery and Method for Manufacturing the Same

Absstract of: US2025385292A1

The present invention relates to a secondary battery in which an electrode tab is improved in mechanical strength and a method for manufacturing the same. Also, the secondary battery according to the present invention includes: an electrode provided with a coating portion coated with an active material on an electrode collector and a non-coating portion on which the active material is not applied to the electrode collector in a longitudinal direction of the electrode collector and a notching tab part extending from the coating portion in a width direction of the electrode collector without coating with the active material and overlapping each other to form two or more layers when the electrode is wound.

ELECTRODE ASSEMBLY STRUCTURE, AND CYLINDRICAL BATTERY, BATTERY PACK AND VEHICLE COMPRISING THE SAME

Absstract of: US2025385294A1

The present disclosure discloses an electrode assembly structure that facilitates impregnation of electrolyte and discharge of gas, and reduces the risk of fire due to short circuit. The electrode assembly structure according to one aspect of the present disclosure includes a first electrode assembly wound around a winding axis, and a second electrode assembly wound around the winding axis, adjacent to the first electrode assembly, and located outer than the first electrode assembly in a radial direction.

ELECTROLYTE SOLUTION FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME

Absstract of: US2025385308A1

Provided are an electrolyte solution for a rechargeable lithium battery and a rechargeable lithium battery including the same, wherein the electrolyte solution includes a non-aqueous organic solvent, a lithium salt, a first additive represented by Formula 1 above, and a second additive represented by Formula 2 above.

ELECTROLYTE, SECONDARY BATTERY, AND ELECTRIC APPARATUS

Absstract of: US2025385321A1

This application provides an electrolyte, a secondary battery, and an electric apparatus. The electrolyte includes a cyclic sulfate compound represented by Formula I and a metal ion additive. The cyclic sulfate compound and the metal ion additive contribute to the formation of a stable SEI film, thereby facilitating an improvement in the rate performance of the battery.

ELECTRODE PLATE NOTCHING DEVICE

Absstract of: US2025385291A1

Embodiments of the present disclosure relate to an electrode plate notching device capable of automatically correcting a bias of a press pressure transmitted to a mold during a notching process of an electrode plate, thereby preventing or reducing molding errors. An electrode plate notching device includes a lower press, a first mold seated on the lower press and including a punch hole, a second mold movable up and down above the first mold and including a punch, an upper press arranged above the second mold and movable vertically, and a correction unit connecting the upper press to the second mold and capable of multi-axis alignment.

NEGATIVE ELECTRODE MATERIAL COMPRISING RED PHOSPHORUS COATING FOR SECONDARY BATTERY, AND METHOD FOR MANUFACTURING SAME

Absstract of: WO2025259050A1

The present invention relates to a negative electrode material comprising a red phosphorus coating for a secondary battery enabling high-rate charging and exhibiting high cycle characteristics, and a method for manufacturing same. In the present invention, a uniform and thin red phosphorous coating layer and a carbon coating layer are formed on graphite, leading to high electron and lithium-ion permeability, and thus can suppress lithium precipitation on the surface of the electrode and exhibit high-rate charge and discharge characteristics and excellent cycle characteristics.

SECONDARY BATTERY PRESSING DEVICE AND SECONDARY BATTERY PRESSING METHOD USING SAME

Absstract of: WO2025258808A1

The present invention relates to a secondary battery pressing device and a secondary battery pressing method using same, the secondary battery comprising a battery case accommodating an electrode assembly in which a pair of electrode leads are positioned to face each other, and a sealing part at an edge of the battery case. The secondary battery pressing device comprises: a pair of pressing plates for pressing one surface and the other surface of the battery case; and a pair of contact members in close contact with a corner part of the battery case by the pair of pressing plates.

NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY

Absstract of: WO2025258664A1

A non-aqueous electrolyte secondary battery according to the present disclosure comprises: a long positive electrode; a long negative electrode; a long separator disposed between the long positive electrode and the long negative electrode; and a non-aqueous electrolyte, wherein the long positive electrode, the long negative electrode, and the long separator are wound in the length direction to form a wound body, the central portion of the wound body has a separator wound portion formed by winding the long separator 15-40 times, and the thickness of the long separator is 0.01-0.03 mm.

CURRENT COLLECTOR PLATE AND BATTERY CELL USING SAME

Absstract of: WO2025259000A1

Disclosed are a current collector plate implemented so that a fuse element electrically connects a rivet terminal and a tab of an electrode of an electrode assembly, and a cylindrical battery cell to which same is applied. A terminal connection part of the current collector plate is provided on a center plate disposed at the center portion of the current collector plate, an electrode connection part is provided on a peripheral plate having a closed loop shape surrounding the center plate, and the fuse element is implemented by a bridge radially connecting the center plate and the peripheral plate. Only by limiting the width and length of the bridge, the bridge can be configured as a fuse element having a fast fusing speed while suppressing an increase in internal resistance due to the bridge.

POSITIVE ELECTRODE ADDITIVE FOR SECONDARY BATTERY, POSITIVE ELECTRODE SLURRY COMPRISING SAME, AND LITHIUM SECONDARY BATTERY COMPRISING SAME

Absstract of: WO2025258733A1

The present invention relates to a positive electrode additive for a secondary battery, a positive electrode slurry comprising same, and a lithium secondary battery comprising same, wherein the positive electrode additive may include a compound represented by chemical formula 1 or chemical formula 2. The details of chemical formula 1 and chemical formula 2 are as described in the specification.

HIGH-ENERGY ALL-SOLID-STATE LITHIUM BATTERIES

Absstract of: US2025385250A1

Provided is an all-solid-state lithium batteries (ASSLBs), Li-based cathode materials and structures incorporated therein and to methods of producing said materials, structures and batteries.

POSITIVE ELECTRODE CURRENT COLLECTOR FOR LITHIUM SECONDARY BATTERY, PREPARATION METHOD THEREFOR, AND LITHIUM SECONDARY BATTERY COMPRISING SAME

Absstract of: US2025385268A1

A cathode current collector for a lithium secondary battery according to embodiments of the present invention may include a first metal layer which includes a first region and a second region having a thickness smaller than that of the first region, and a second metal layer disposed on the second region of the first metal layer and having a different composition from the first metal layer. Accordingly, when the cathode current collector is coupled with a cathode tab, etc., heat generation due to a difference in resistance at the coupled portion may be prevented.

NEGATIVE ELECTRODE FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY

Absstract of: US2025385251A1

Disclosed are negative electrodes and rechargeable lithium batteries. The negative electrode includes a negative electrode current collector, and a negative electrode active material layer on the negative electrode current collector. The negative electrode active material layer includes a first negative electrode active material that includes a silicon-carbon composite, a second negative electrode active material that includes a first carbon-based material having a degree of divergence (DD) value that is equal to or greater than about 15, a binder, and a conductive material that includes a second carbon-based material having a one-dimensional nano-structure.

POSITIVE ELECTRODE ACTIVE MATERIAL

Absstract of: US2025385254A1

There is provided a positive electrode active material comprising (a) a first component comprising lithium transition metal oxide spinel particles; (b) a second oxide component selected from oxides of Sr, Y, Zr, Nb, La and W, and mixtures thereof; wherein the positive electrode active material is (i) particles comprising one or more single crystals of the first component, wherein the arithmetic mean value of the minimum Feret diameter of the particles measured using scanning electron microscopy is no greater than 3 μm,wherein the second oxide component is disposed at least partly on the surface of the particles; and/or(ii) secondary particles comprising agglomerated single crystal particles of the first component, wherein the second oxide component is dispersed through the secondary particles on the surface of the single crystal particles at the interfaces between the single crystal particles.

POSITIVE ELECTRODE ACTIVE SUBSTANCE FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY

Absstract of: US2025385257A1

A non-aqueous electrolyte secondary battery according to one embodiment of the present invention comprises: a positive electrode containing a positive electrode active substance; a negative electrode; and a non-aqueous electrolyte. The positive electrode active substance comprises a lithium transition metal compound oxide containing at least Ni. The lithium transition metal compound oxide is secondary particles formed by aggregation of primary particles, and the primary particles present on the surface of the secondary particles have a crystal structure that includes a rock salt structure, a spinel structure, and a layered rock salt structure formed in order from the particle surface.

POSITIVE ELECTRODE ACTIVE MATERIAL FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY

Absstract of: US2025385256A1

Provided is a positive electrode active material for a non-aqueous electrolyte secondary battery that can improve the capacity and durability of the non-aqueous electrolyte secondary battery. The positive electrode active material contained in a non-aqueous electrolyte secondary battery comprises a lithium transition metal composite oxide containing at least 70 mol % of Ni and Mn with respect to the total molar amount of metal elements other than Li, the lithium transition metal composite oxide is composed of single particles, the average particle size of the single particles is 0.65 μm-4 μm, and the crystallite size of the single particles is 380 Å-750 Å.

SILICON-CARBON COMPOSITE MATERIAL AND PREPARATION METHOD THEREFOR, NEGATIVE ELECTRODE SHEET, SECONDARY BATTERY, AND ELECTRICAL DEVICE

Absstract of: US2025385262A1

The present application relates to a silicon-carbon composite material and a preparation method therefor, a negative electrode sheet, a secondary battery, and an electrical device. The silicon-carbon composite material comprises a porous carbon matrix and a silicon-based material layer located in pores of the porous carbon matrix, the silicon-based material layer comprises a sub-nano silicon cluster and a sub-nano silicon carbide cluster, and the surface of the sub-nano silicon carbide cluster is in contact with the surface of the sub-nano silicon cluster. The silicon-carbon composite material has small expansibility, good cycle performance and fast charging performance and high energy density.

RECHARGEABLE BATTERY WITH VOLTAGE ACTIVATED CURRENT INTERRUPTER

Absstract of: US2025385300A1

A high energy density rechargeable metal-ion battery includes an anode energy layer, a cathode energy layer, a separator for separating the anode and the cathode energy layers, an anode current collector for transferring electrons to and from the anode energy layer, the battery characterized by a maximum safe voltage for avoiding overcharge, and an interrupt layer that interrupts current within the battery upon exposure to voltage in excess of the maximum safe voltage. The interrupt layer is between the anode energy layer and current collector. When unactivated, it is laminated to the cathode current collector, conducting current therethrough. When activated, the interrupt layer delaminates from the anode current collector, interrupting current therethrough. The interrupt layer includes a voltage sensitive decomposable component that upon exposure to voltage in excess of the maximum safe voltage decomposes, evolving a gas, delaminating the interrupt layer from the anode current collector, interrupting current therethrough.

BATTERY FORMATION DEVICE AND METHOD

Absstract of: US2025385289A1

A battery formation device comprises a formation three-dimensional storage and further comprises a battery placing manipulator, a battery taking manipulator, a button cup taking manipulator, a capsule conveying circulating drawstring, a first capsule transfer conveying line and a first capsule conveying drawstring. The battery placing manipulator, the battery taking manipulator and the button cup taking manipulator are all arranged on a formation frame, and are all capable of moving forth and back relative to the formation frame, the battery placing manipulator and the battery taking manipulator are arranged side by side left and right, the button cup taking manipulator is located behind the battery placing manipulator and the battery taking manipulator, the capsule conveying circulating drawstring penetrates through the formation frame and is located below the button cup taking t manipulator, and the formation three-dimensional storage is arranged behind the formation frame.

MANUFACTURING APPARATUS OF BATTERY CELL AND MANUFACTURING METHOD OF BATTERY CELL

Absstract of: US2025385290A1

According to the present disclosure, provided is a manufacturing apparatus of a battery cell including an electrode assembly accommodation portion accommodating an electrode assembly, and a sealing portion sealing a perimeter of the electrode assembly accommodation portion, the sealing portion including a protrusion portion further protruding than a non-sealed surface not sealed in the electrode assembly accommodation portion, the manufacturing apparatus including: a pair of fixing blocks configured to pressurize and fix the sealing portion in a first direction, perpendicular to one surface of the sealing portion; and a folding block configured to fold the protrusion portion further protruding in a second direction, perpendicular to the first direction, further than the non-sealed surface, and the folding block may include a pressurizing portion formed to be perpendicular to the second direction, and an inclination portion extending from the pressurizing portion and forming an inclination with respect to the pressurizing portion.

MODULAR BATTERY PACK

Absstract of: US2025385372A1

Discussed is a modular battery pack including a base pack having two or more cylindrical battery cells connected to each other in series, the base pack having a cuboidal shape, and at least one add-on pack having two or more cylindrical battery cells connected to each other in series, the add-on pack having a cuboidal shape. The two or more cylindrical battery cells are disposed side by side in parallel in each of the base pack and the add-on pack, the base pack and the add-on pack are disposed such that side surfaces of the two or more cylindrical battery cells face each other, and the base pack and the add-on pack are connected to each other in parallel. Accordingly, add-on packs may be connected to the base pack in parallel without limit to number to allow easy and simple increase in a capacity of the modular battery pack.

BATTERY MODULE AND BATTERY PACK

Absstract of: US2025385359A1

A battery module and a battery pack are provided. The battery module includes two end plate assemblies spaced apart in a first direction and a middle plate connected between the two end plate assemblies. The middle plate includes a partition portion and a connection portion distributed in a straight line in the first direction and in a same plane. The middle plate is inserted into and fitted with the corresponding end plate assembly at least through the connection portion. At least one side plate surface of the partition portion has a light shielding structure protruding from a plate surface of the connection portion. The light shielding structure is arranged on at least one side plate surface of the partition portion.

SECONDARY BATTERY AND BATTERY PACK INCLUDING THE SAME

Absstract of: US2025385405A1

A secondary battery includes a case having an opening, an electrode assembly in the case, and a cap assembly configured to seal the opening of the case, the cap assembly including a cap-up exposed to an outside of the case, a vent plate between the cap-up and the electrode assembly, the vent plate being electrically connected to the cap-up, a cap-down between the vent plate and the electrode assembly, the cap-down being electrically connected to the vent plate and the electrode assembly, a first insulator between the vent plate and the electrode assembly, and a second insulator between the vent plate and the electrode assembly, the second insulator being spaced apart from the first insulator and being configured to support the vent plate.

SECONDARY BATTERY

Absstract of: US2025385404A1

Provided is a secondary battery having improved structural stability. The an electrode assembly includes a plurality of negative electrodes each including a negative electrode tab and a plurality of positive electrodes arranged alternately with the negative electrodes and each including a positive electrode tab, a first current collector electrically connected to the negative electrodes, and a first insulator disposed below the first current collector, wherein negative electrode tabs of at least some of the plurality of negative electrodes overlap in a first position to form a first negative electrode tab stack and negative electrode tabs of the others of the plurality of negative electrodes overlap in a second position, different from the first position, to form a second negative electrode tab stack, and the first insulator is disposed adjacent to the first negative electrode tab stack and the second negative electrode tab stack simultaneously.

SOLID-STATE BATTERY AND METHOD OF MANUFACTURING SOLID-STATE BATTERY

Absstract of: US2025385389A1

A solid-state battery of the present disclosure includes an electrode body and current collector tabs that are connected to the electrode body. The electrode body has a positive electrode current collector, a positive electrode active material layer, a solid electrolyte layer, a negative electrode active material layer, and a negative electrode current collector. The solid electrolyte layer has a support including a plurality of pores. The support has projecting parts that project relative to end surfaces of each of the positive electrode active material layer and the negative electrode active material layer. A number of pores in the support in the projecting parts is less than a number of pores in the support in the nonprojecting part.

BATTERY ASSEMBLY AND BATTERY PACK

Absstract of: US2025385365A1

A battery assembly includes: a plurality of battery cells arranged in a first direction; an end plate provided at an end portion of a stack of the plurality of battery cells in the first direction; a restraint member that restrains the plurality of battery cells and the end plate in the first direction; and an elastic mechanism provided between the restraint member and the end plate; and a mechanism that suppresses relative positional deviation between the end plate and the restraint member in a second direction orthogonal to the first direction.

BATTERY ASSEMBLY AND BATTERY PACK

Absstract of: US2025385395A1

A battery module in which a plurality of battery cells each having one side surface on which an electrode terminal is disposed are stacked includes: a first binding bar provided to cover a side of each of the plurality of battery cells on which the electrode terminal is disposed; and a plurality of bus bars that each electrically join electrode terminals of battery cells adjacent to each other, wherein each of the bus bars is fixed at a position facing the electrode terminals on an inner surface side of the first binding bar on which the battery cells are located, and the bus bar is not fixed to each of the electrode terminals and is in contact with and connected to the electrode terminal.

METHOD FOR MANUFACTURING AN ENERGY STORAGE DEVICE

Absstract of: US2025385054A1

A method is for manufacturing an energy storage device. The method includes the steps of: providing a first anode portion with a first metal-ion pre-doping degree, providing a second anode portion with a second metal-ion pre-doping degree which is lower than the first metal-ion pre-doping degree, and producing an electrode assembly by combining the first and second anode portions with a cathode and a separator for preventing electrical contact between the anode portions and the cathode. An electrode assembly and an energy storage device are provided having a container including the electrode assembly.

NIMO-BASED NANOMATERIAL EARPHONE DIAPHRAGM

Absstract of: US2025386159A1

The present disclosure discloses a NiMo-based nanomaterial earphone diaphragm sand a preparation method thereof. The diaphragm uses a paper base film as the basis, and a uniform distribution of a NiMo-based nanomaterial coating is formed on a surface of the base film by plasma modification and electrostatic spraying technology, forming a concentric ring structure and using the NiMo-based nanomaterial as connecting lines to enhance the stability and conductive performance of the overall structure. This design not only significantly improves the audio quality performance of the earphones, including clarity, detail restoration, and dynamic range, but also greatly improves the durability and environmental adaptability of the diaphragm. The present disclosure provides an innovative solution for high-end earphone manufacturing, and is especially suitable for music lovers who pursue the ultimate audio experience and professional audio fields.

UNINTERRUPTIBLE RESPIRATORY SYSTEM

Absstract of: US2025385542A1

An uninterruptible power supply system with a housing, at least one input port configured to receive power from an external power source, at least one output port configured to provide power to a respiratory device, a battery pack contained within the housing, a power supply circuit configured to selectively bypass the battery pack and enable the power from the external power source to provide power to the respiratory device, while allowing power to charge the battery pack of the power supply; and a warning system configured to provide an indication of the power level of the battery pack. The uninterruptible power supply system allowing locking of cables inserted into the input and output ports. The uninterruptible power supply system allowing daisy-chaining to improve the total power level.

ALTERNATIVE ENERGY SYSTEMS FOR FOOD CARTS

Absstract of: US2025385523A1

Systems and methods for providing power to food carts using solar energy, battery storage, and hydrogen fuel cell energy. Systems comprise a plurality of solar panels arranged on a food cart, a battery system disposed in a basement, and a controller configured to monitor and control the power flow between the solar panels, the battery system, and the food cart, where the control system determines when hydrogen fuel cell energy is needed.

ELECTRICAL HOUSING FOR AN AIRCRAFT

Absstract of: US2025385373A1

A housing for an electrical power storage battery includes a plate, onto which power elements of the battery are attached, and a bell cover covering the plate and means for mechanically attaching the bell cover onto the plate. The plate may include means for the electrical connection of the battery, means for the connection of communication means, and means for the thermal management of the electrical power elements.

BATTERY PACK THERMAL INSULATOR

Absstract of: US2025385343A1

A thermal insulator for a battery module including at least one nonwoven layer of intertwined fibers and an outer heat-shrunk polymeric layer, wherein the at least one nonwoven layer of intertwined fibers is compressed by the outer heat-shrunk layer.

BATTERY ASSEMBLY AND BATTERY PACK

Absstract of: US2025385366A1

A battery assembly includes: a plurality of battery cells arranged in a first direction; and a restraint member that restrains the plurality of battery cells in the first direction, wherein each of the plurality of battery cells has an electrode terminal on at least one side in a second direction orthogonal to the first direction, the restraint member includes a pair of members provided to sandwich the plurality of battery cells in the second direction, and the pair of members are provided to be separated from each other in the second direction.

MODULAR ELECTROCHEMICAL ENERGY STORAGE SYSTEM

Absstract of: US2025385371A1

A modular electrochemical energy storage system comprises a plurality of modules. These include: at least one energy storage module, which is configured for the electrochemical storage of energy and has a first housing of a first housing type; and at least one control module, which is configured as an inverter and control unit for at least partial control of the energy storage system and comprises a second housing of a second housing type. The first housing and the second housing each comprise at least one housing opening on their upper housing sides and lower housing sides. In this case, a plurality of modules can be stacked vertically one on top of the other, regardless of their housing design, in such a way that, in the case of respective two modules which are vertically adjacent in the stack, a housing opening on the housing lower side of the upper of the two modules overlaps a housing opening on the housing upper side of the lower of the two modules in such a way that, by means of these overlapping housing openings, a vertical line routing for the line-bound connection of a module which is located in the stack (directly or indirectly) above the lower of the two modules is made possible. The connection can be, in particular, an electrical and/or a hydraulic connection.

SOLDERING STRUCTURE AND SOLDERING METHOD FOR BATTERY CELL, AND BATTERY

Absstract of: US2025385394A1

A soldering structure and a soldering method for a battery cell, and a battery are provided, relating to the field of battery technology. The soldering structure for the battery cell includes a wound body; full electrode tabs, formed at ends of the wound body; and current collecting parts, soldered to sides, facing away from the wound body, of the full electrode tabs to form multiple solder joints; in which the multiple solder joints are arranged at equal arc distances along a winding direction of the wound body. The multiple solder joints are arranged at equal arc distances along the winding direction of the wound body, so that the solder joints can be uniformly distributed on the full electrode tabs along the winding direction, and a current can be uniformly transmitted into the wound body through the full electrode tabs, reducing the current loss.

SEPARATOR, BATTERY CELL, BATTERY AND ELECTRICAL APPARATUS

Absstract of: US2025385385A1

The present application relates to a separator, a battery cell, a battery and an electrical apparatus, wherein the separator comprises two surfaces opposite to each other along its own thickness direction, at least one of the surface of the separator and the interior of the separator comprises a pore structure, and the separator further comprises a swellable polymer; the separator satisfies: when a pressure of 1.25 MPa is applied along the thickness direction of the separator, the compression rate ΔV of the separator is ≤25%.

BATTERY PACK WITH GAS VENTING PATH

Absstract of: US2025385383A1

A battery pack includes a plurality of battery modules; and a pack case accommodating the plurality of battery modules, where the pack case includes a pack tray including an internal space in which the battery modules are received and an open top; and a pack cover covering the top of the pack tray, coupled to the pack tray, and including a gas venting path disposed therein, the gas venting path communicating with the battery modules.

Electrical Energy Store for a Motor Vehicle, in Particular for an Automobile, and Motor Vehicle

Absstract of: US2025385362A1

An electrical energy store for a motor vehicle has storage cells designed to store electrical energy, which are arranged in a store housing which has a base having an upper base element and a lower base element, wherein the separately formed base elements can be detached from one another in a non-destructive manner, at least with respect to the base elements.

POWER STORAGE DEVICE

Absstract of: US2025385380A1

In a power storage device, a smoke exhaust valve is disposed in a smoke exhaust space through which gas discharged from a gas exhaust valve of a power storage cell flows. A housing includes a bottom portion, a side wall portion extending upward from an outer peripheral edge of the bottom portion, and a protruding portion protruding from the side wall portion. The smoke exhaust valve is provided in the protruding portion and is disposed above a lower surface of the power storage cell.

POWER STORAGE DEVICE

Absstract of: US2025385384A1

A power storage device includes at least one power storage cell, a top wall provided over the power storage cell, a facing wall facing the power storage cell in a width direction, a support portion supporting the power storage cell, and a bottom plate disposed under the power storage cell. The bottom plate includes a connecting surface formed so as to be flat. At least one of the facing wall and the support portion includes a bottom surface formed in a position closest to the connecting surface of the bottom plate and formed so as to be flat. The connecting surface of the bottom plate is connected to the bottom surface.

COMPOSITE SEPARATOR, PREPARATION METHOD THEREFOR, AND LITHIUM-SULFUR BATTERY CONTAINING COMPOSITE SEPARATOR

Absstract of: US2025385387A1

A composite separator and a preparation method therefor, as well as a lithium-sulfur battery containing the composite separator are provided. The composite separator has a polymer substrate film and a composite layer disposed on the surface of the polymer substrate film. The composite layer includes a molecular sieve and a conductive carbon material. The molecular sieve contains cobalt and optionally lithium.

BATTERY PACK AND BATTERY MODULE

Absstract of: US2025385369A1

A battery pack includes enclosure plates, a liquid cooling plate and battery cells. The battery cells are mounted on the liquid cooling plate, the enclosure plates surround the liquid cooling plate and the battery cells, and the liquid cooling plate is connected to the enclosure plates; an accommodating cavity is provided between the enclosure plates and the battery cells; the liquid cooling plate is connected with an outlet pipe and an inlet pipe, and the outlet pipe and the inlet pipe are both located in the accommodating cavity; a top surface and a bottom surface of an enclosure plate are each provided with a connecting component.

BATTERY MODULE AND BATTERY PACK

Absstract of: US2025385364A1

Provided are a battery module and a battery pack. The battery module includes an end panel assembly, including an end panel body and a floating connection assembly, wherein the floating connection assembly is slidably connected to the end panel body; an electrical structure, wherein a part of the electrical structure is connected to a first area of a first panel, and the other part of the electrical structure is connected to a second area of the first panel; and a cell, disposed on one side close to the second panel. When the cell is in an expanded status, the first area of the end panel body moves away from the cell relative to the second area, the floating connection assembly moves away from the cell relative to the end panel body, so that the electrical structure as a whole moves with the first area of the end panel body.

PROTECTIVE COVER A COVER ASSEMBLY A BATTERY CELL ASSEMBLY AND A VEHICLE

Absstract of: US2025385349A1

The disclosure relates to a protective cover for protecting a battery cell top surface of a battery cell, comprising a main protective wall and a side wall protruding downwardly from the main protective wall and extending around an outer perimeter of the main protective wall such that an inner surface of the side wall and the bottom surface of the main protective wall defines a space with a height corresponding to a height of the side wall. The disclosure also relates to a cover assembly, a battery cell assembly, and a vehicle.

CASING MANUFACTURING METHOD FOR BATTERY CELL, BATTERY CELL, BATTERY AND ELECTRIC DEVICE

Absstract of: WO2025255980A1

Disclosed in the present application are a casing manufacturing method for a battery cell, the battery cell, a battery and an electric device. The casing manufacturing method for the battery cell comprises: using a first punch to stamp a material sheet, such that the material sheet forms an accommodating cavity having an opening; and removing waste material from the material sheet at the opening of the accommodating cavity, wherein the material sheet after the waste material is removed comprises a first side wall and a second side wall arranged adjacent to each other, the first side wall being arranged opposite the opening of the accommodating cavity, and a first arc-shaped portion being connected between the first side wall and the second side wall. The casing manufacturing method for the battery cell further comprises: using a second punch to stamp the material sheet, so as to form a clearance groove on the side of the first arc-shaped portion facing the accommodating cavity.

TAB WELDING STRUCTURE AND BATTERY

Absstract of: WO2025255890A1

The present application relates to the technical field of batteries. Disclosed are a tab welding structure and a battery. The tab welding structure comprises: a wound body (100), which comprises an electrode sheet and a full-tab (110), wherein the full-tab (110) is electrically connected to the electrode sheet, and the full-tab (110) is located at one end of the wound body (100); and a current collecting member (300), which is welded to the full-tab (110) to form a plurality of welding spot groups (200), wherein the plurality of welding spot groups (200) are radially distributed around the center of the wound body (100), and a plurality of welding spots (211) in each of the welding spot groups (200) are arranged in a wavy shape in the radial direction of the wound body (100). The welding structure can improve the uniformity of current conduction of the wound body (100), thereby reducing current loss.

BATTERY AND ELECTRICAL DEVICE

Absstract of: WO2025255953A1

The present application relates to a battery and an electrical device. The battery comprises: a plurality of battery cells, the plurality of battery cells being arranged in rows and columns along a first direction and a second direction intersecting one another, and a first gap channel being formed between two adjacent columns of battery cells along the first direction; and a pressing strip, comprising a first adhesive blocking portion and an opening portion, wherein the first adhesive blocking portion is connected to surfaces of the two adjacent columns of battery cells facing a third direction and at least covers the first gap channel, and in a projection plane perpendicular to the third direction, the projection of the opening portion in the third direction is offset from the projection of the first gap channel. The opening portion is connected to the surfaces of the battery cells facing the third direction by means of adhesive. The first direction, the second direction, and the third direction are perpendicular in pairs. The battery of the present application can effectively reduce the probability of adhesive overflowing into a gap between two adjacent battery cells, thereby effectively improving battery yield.

DEVICE AND METHOD FOR CUTTING FOR SHEET-LIKE MEMBER, AND LAMINATED BATTERY MANUFACTURING DEVICE IN WHICH SAID CUTTING DEVICE IS USED

Absstract of: WO2025258158A1

A cutting device (10) comprises: a drum-like member (13) having a cylindrical outer shell part (17) in which a slit hole (15) is formed along a drum axial direction (A11); a suction holding means (51) for suctioning and holding a sheet-like member (11) continuously fed from the outside on the surface (sheet suction surface (17a)) of the outer shell part; a rotation mechanism (52) for rotating the outer shell part of the drum-like member in the circumferential direction (rotation direction (A12)); a cutting blade (16) that moves along the slit hole; and a reciprocating motion mechanism (53) for reciprocating the cutting blade in the drum axial direction.

BATTERY STATE DETECTION DEVICE, BATTERY RECOVERY DEVICE, BATTERY STATE DETECTION METHOD, AND BATTERY RECOVERY METHOD

Absstract of: WO2025258157A1

Provided is a battery state detection device capable of more appropriately detecting the state of a secondary battery. This battery state detection device comprises: a reference waveform generation unit that constitutes a circuit including a secondary battery, that detects the state of the secondary battery, and that generates a reference waveform; an application waveform output unit that outputs an application waveform to be applied to the secondary battery on the basis of the reference waveform and that performs feedback correction on the phase difference between the reference waveform and the application waveform; a detection unit that, in a state in which the application waveform has been applied, detects an output signal waveform output from the secondary battery; and an index value acquisition unit that, on the basis of the detection result of the detection unit, acquires an index value indicating the scale of fluctuation occurring in the output signal waveform.

RECHARGEABLE BATTERY, METHOD FOR MANUFACTURING RECHARGEABLE BATTERY, AND METHOD FOR MANUFACTURING ELECTRODE FOR RECHARGEABLE BATTERY

Absstract of: WO2025258004A1

According to the present invention, a rechargeable battery, a method for manufacturing the rechargeable battery, and a method for manufacturing an electrode for the rechargeable battery are provided with: a step for forming electrode slurry that includes an electrode active material, amorphous carbon or a carbon fiber, a thickener, and a binder; a step for applying the electrode slurry to a substrate and then drying the same, thereby forming an electrode coating film on the surface of the substrate; and a step for superposing the substrate having the electrode coating film formed on the surface thereof onto one surface of perforated metal foil including a plurality of through-holes, and then applying a pressure thereto, thereby transferring the electrode coating film to the perforated metal foil.

METHOD, APPARATUS AND SYSTEM FOR CAPTURING CARBON USING FUEL CELL

Absstract of: US2025385345A1

In the present disclosure, a method, an apparatus, and a system for collecting carbon using a fuel cell principle are disclosed. More specifically, the carbon capture device may comprise an air cartridge in which a gas including a carbon component is introduced; a fuel cartridge in which a fuel is injected; a fuel cell stack; a fuel supply line for supplying the fuel between the fuel cartridge and the fuel cell stack; and a controller, wherein the fuel cell stack may include: an anode unit including a fuel electrode for performing an oxidation reaction of the fuel supplied from the fuel supply line; a cathode unit including an air electrode for performing a reduction reaction of the gas introduced from the air cartridge; and an electrolyte unit including an electrolyte for transferring metal ions generated by the oxidation reaction of the fuel between the anode unit and the cathode unit.

SECONDARY BATTERY

Absstract of: US2025385319A1

A secondary battery includes an electrode assembly configured to have a wound structure including a first electrode, a second electrode and a separator between the first electrode and the second electrode; a case having an open area in a first side thereof, the open area being configured to accommodate the electrode assembly; and a cap assembly coupled to the first side of the case and configured to close the open area, wherein the cap assembly includes a cap plate seated in and coupled to the open area of the case and having a through-hole; and a terminal plate including a body and an insertion portion extending through the through-hole of the cap plate, and wherein the first electrode includes an electrode tab having a first end connected to the terminal plate.

INTEGRATED HEATER FOR BATTERY

Absstract of: US2025385339A1

Aspects of this disclosure relate to a system for energy storage with integrated heating. The system can include a battery cell. The system can include a battery management board assembly coupled to the battery cell. The battery management board assembly can include a printed circuit board, an integrated circuit coupled to the printed circuit board and configured to monitor the battery cell, and an integrated heating element integrated with the printed circuit board and configured to heat the battery cell.

BATTERY MODULE

Absstract of: US2025385329A1

A battery module includes a battery stack including a plurality of batteries stacked along a first axis, and a sensing module coupled to a side of the battery stack. The sensing module may include a substrate part provided above the battery stack, and a temperature sensing part connected to a side of the substrate part and having a side provided to be in contact with the battery stack.

METHODS AND SYSTEMS FOR SCALABLE DIRECT RECYCLING OF BATTERY WASTE

Absstract of: US2025385332A1

Embodiments described herein relate to methods of recycling battery waste. In some aspects, a method can include applying a first heat treatment at a temperature of between about 100° C. and about 700° C. to the battery waste, the first heat treatment decomposing at least about 80 wt % of the binder, separating the electrode material from the current collector, and applying a second heat treatment at a temperature between about 400° C. and about 1,200° C. to the electrode material to produce a regenerated electrode material, the second heat treatment decomposing at least 90 wt % of binder remaining in the electrode material to produce a regenerated electrode material. In some embodiments, the method can include applying a surface treatment to the electrode material to remove surface coatings and/or surface impurities from the electrode material. In some embodiments, the surface treatment can include applying a solvent to the electrode material.

COMPOSITE FILM FOR CURRENT COLLECTOR, PREPARATION METHOD THEREFOR, AND USE THEREOF

Absstract of: WO2025256018A1

A composite film for a current collector, a preparation method therefor, and the use thereof. The composite film comprises a base film (B) and a polyimide layer (A) provided on at least one surface of the base film (B). The base film (B) comprises a base film (B) hydrophilically modified by a modification compound, the molecular structure of the modification compound containing a carbon-carbon double bond and a functional group, and the functional group comprising at least one of an anhydride group, a carboxyl group, a hydroxyl group, an amide group, or an ester group; the polyimide layer is prepared by an aqueous phase monomer and an organic phase monomer undergoing an interfacial polymerization reaction on the surface of the base film. The composite film has excellent heat resistance and mechanical properties, exhibits high adhesion to metal conductive layers, so as to prevent metal conductive layers in composite current collectors from peeling off, and in addition, is not prone to film breakage during the preparation process , thus achieving high yield and low cost.

COATED LITHIUM MANGANESE IRON PHOSPHATE MATERIAL, AND PREPARATION METHOD THEREFOR AND USE THEREOF

Absstract of: WO2025255963A1

A coated lithium manganese iron phosphate material, and a preparation method therefor and the use thereof. The preparation method comprises the following steps: mixing and drying a phosphorus source, a lithium source, a manganese source, an iron source, a solvent, an organic amine and an organic carbon source, so as to obtain a precursor, wherein the organic amine comprises an amino group, and the organic carbon source comprises a hydroxyl group; and calcining the precursor, so as to obtain the coated lithium manganese iron phosphate material. By means of in-situ coating used in the preparation method, not only can in-situ doping of both carbon and nitrogen be achieved, but a carbon-nitrogen-coated network having high conductivity can also be formed, thereby overcoming the problems of poor intrinsic conductivity for both electrons and lithium ions, a low capacity retention rate during long-term cycling, etc., of lithium iron manganese phosphate materials.

COVER CLOSING MECHANISM, ENCAPSULATION AUXILIARY DEVICE, BATTERY ENCAPSULATION APPARATUS, AND BATTERY PRODUCTION SYSTEM

Absstract of: WO2025255951A1

A cover closing mechanism, an encapsulation auxiliary device, a battery encapsulation apparatus, and a battery production system. The cover closing mechanism uses a first driver (15) to drive a first folding member (11) and a second folding member (12) to rotate and fold relative to each other, thus enabling a packaging film located between the first folding member and the second folding member to finish folding in half. Since a rotating assembly (30) can drive an entire cover closing assembly to rotate around a first axis (153), and the direction of the first axis is consistent with the stacking direction between the first folding member and the second folding member, after the folding in half is finished, under the action of the rotating assembly, the folded first folding member and second folding member can rotate around their own stacking direction, so that the orientations of different sides of the packaging film can be changed, thereby facilitating sealing operations on different sides on the cover closing mechanism while eliminating the need to transfer to other devices, improving the integration of the apparatus and the encapsulation efficiency.

BATTERY CONTROL METHOD AND BATTERY SYSTEM

Absstract of: WO2025257971A1

Provided is a battery control method for an all-solid-state battery (10) comprising: a battery cell (11) in which a positive electrode body (111), a solid electrolyte layer (112), and a negative electrode body (113) are laminated in the Z direction; a pair of restraint plates (14) that have a battery main part (13) for alternately laminating elastic bodies 12 in the Z direction, and sandwich the battery main part (13) from the Z direction; and a plurality of fastening members (15) that fasten the pair of restraint plates (14) to each other. Among the plurality of fastening members (15), a strain gauge (16) that measures the strain of the fastening member (15) is provided to at least two or more different fastening members (15), and the in-plane distribution of the pressure applied to the battery main part (13) is measured on the basis of the difference between the measurement signals output from at least two or more strain gauges (16).

BATTERY PACK AND BATTERY PACK MANUFACTURING METHOD

Absstract of: WO2025256664A1

A battery pack and a battery pack manufacturing method. The battery pack comprises cooling plate assemblies (200), and a plurality of battery cell modules (10), which are stacked from top to bottom, wherein the cooling plate assembly (200) is provided between two adjacent cell modules (10), and each cooling plate assembly (200) comprises a first cooling plate (210) and a second cooling plate (220), the first cooling plate (210) supporting the bottom of the battery cell module (10) of the corresponding two adjacent battery cell modules (10) located above, and the second cooling plate (220) covering the top of the battery cell module (10) of the corresponding two adjacent battery cell modules (10) located below; and the mechanical strength of the first cooling plates (210) is greater than the mechanical strength of the second cooling plates (220).

COOLING PLATE

Absstract of: WO2025256656A1

A cooling plate, comprising at least two stacked pressure plates, at least one branch flow channel being provided between adjacent pressure plates; the branch flow channel has an inlet and an outlet, and the inlet and the outlet are located on a same side of the cooling plate; the side of the branch flow channel having the inlet is defined as an inlet side, and the other side of the branch flow channel is defined as a return side; the branch flow channel comprises an inlet flow channel and a return flow channel, the inlet flow channel has an inlet, the return flow channel has an outlet, and the inlet flow channel and the return flow channel are in communication at the return side; and a wall forming the branch flow channel is located between the adjacent pressure plates, at least one pressure plate is partially stamped, and the wall forming the branch flow channel is formed by stamping. The cooling plate as a whole exhibits good thermal uniformity. In addition, in the present application, a pressure plate structure having branch flow channel walls is formed by means of a stamping process, so that the structure is easy to implement in mechanized and automated production, facilitating the improvement of production efficiency.

BATTERY TEST APPARATUS

Absstract of: US2025385327A1

A battery test apparatus includes an enclosed battery holder which detachably holds a secondary battery, a thermostatic oven in which the battery holder is held, and a charge and discharge test device which charges and discharges the secondary battery held in the battery holder to test the secondary battery. The battery holder is constituted of a fireproof and pressure resistant container capable of withstanding ignition of the secondary battery. Since an exhaust port is connected to an exhaust pipe which discharges gas in the battery holder when the secondary battery ignites, the exhaust port discharges the gas to the outside of the thermostatic oven to release its pressure.

WIPING SYSTEM FOR ELECTRODE IN ELECTROCHEMICAL CELL

Absstract of: US2025385328A1

A wiper system for an electrode in an electrochemical cell utilizes a wiper blade in contact with a surface of the electrode, a blade support having a blade mount on which the wiper blade is mounted, the blade support biasing the wiper blade toward the surface of the electrode to provide a uniformly distributed contact force between a surface of the wiper blade and the surface of the electrode, a translatable carriage on which the blade support is mounted, a carriage drive on which the carriage is mounted to translate the carriage through space, and a chassis on which the carriage drive is mounted, the chassis permitting the wiper blade to contact the electrode during operation of the wiper system.

ELECTROCHEMICAL APPARATUS AND ELECTRONIC APPARATUS

Absstract of: US2025385312A1

An electrochemical apparatus including a cell, the cell including a positive electrode, a negative electrode, an electrolyte, and a separator, where an outermost electrode of the cell has a curved portion and a straight portion, a length of the straight portion is L mm, a radius of the curved portion is D mm, and 5≤L/D≤10; and the electrolyte includes propylene carbonate, and based on a mass of the electrolyte, a percentage of the propylene carbonate is A %, and 5≤A≤15.

Dynamically Pressurized Pouch Battery System

Absstract of: US2025385335A1

A dynamically pressurized pouch battery system. One or more pouch batteries are placed in a fixed volume enclosure, which also contains coolant in direct contact with the pouch battery(s). A pump pumps the coolant into and out of the enclosure, thereby varying the pressure exerted by the coolant upon the exterior of the pouch batteries. The pump may cause the coolant to provide more or less pressure depending on battery cell conditions, such as voltage, state-of-charge, age, state-of-health, or temperature.

SECONDARY PRISMATIC BATTERY CELL

Absstract of: US2025385318A1

A secondary battery cell includes a battery cell enclosure, an electrolyte, and an electrode assembly. The electrode assembly includes a cathode with a cathode area, an anode, a separator (i) with an anode-facing side and a cathode-facing side, (ii) with a bonding area on the cathode-facing side and completely outside the cathode area, and (iii) configured to physically separate the cathode and the anode, and an adhesive strip applied solely on the cathode-facing side of the separator. The cathode is either partially enclosed or completely enclosed by the separator. The adhesive strip is completely in the bonding area. Two segments of the adhesive strip on opposing sides of the cathode are bonded to each other.

ELECTROCHEMICAL DEVICE AND ELECTRONIC DEVICE

Absstract of: US2025385313A1

An electrochemical device including a cell, where the cell includes a positive electrode, a negative electrode, an electrolyte, and a separator, an outermost electrode of the cell has a curved portion and a straight portion, a length of the straight portion is L mm, a radius of the curved portion is D mm, and 5≤L/D≤10; and the electrolyte includes a dinitrile compound, and based on a mass of the electrolyte, a percentage of the dinitrile compound is A %, and 4≤A≤10.

MACHINE MATING STRUCTURE AND BATTERY PRODUCTION LINE

Absstract of: WO2025255945A1

A battery production line comprises a machine mating structure. The machine mating structure comprises a duct (10) and at least one group of mounting assemblies (40). Each group of mounting assemblies (40) comprises a first flange (41), a second flange (42), an air pump, and a sensor. The first flange (41) is connected to the duct (10), and the second flange (42) is connected to an external device. The first flange (41) and the second flange (42) are in plug-in fit, and a detection cavity (47) is formed between plug-in sections of the first flange (41) and the second flange (42). Two detection holes (46) are formed in at least one of the first flange (41) and the second flange (42), and each detection hole (46) is communicated with the detection cavity (47). One detection hole (46) is connected to the air pump, and the other detection hole (46) is connected to the sensor.

BATTERY AND ELECTRICAL DEVICE

Absstract of: WO2025255950A1

A battery (100) and an electrical device. The battery (100) comprises a plurality of battery cells (20) and heat exchange assemblies (30), wherein the plurality of battery cells (20) are arranged in columns, and the columns of battery cells (20) are arranged in the direction of length or direction of width of the battery (100); each heat exchange assembly (30) is arranged between two adjacent columns of battery cells (20); the heat exchange assembly (30) comprises a support member (31) and two cooling plates (33) arranged on the support member (31), the two cooling plates (33) being attached to a corresponding one of columns of battery cells (20), and the two cooling plates (33) being in communication with each other; the heat exchange assembly (30) comprises a connecting tubing (35), and the two cooling plates (33) in the heat exchange assembly (30) are in communication by means of the connecting tubing (35); and the connecting tubing (35) comprises a first joint (351) and a second joint (352) which are respectively arranged on the two cooling plates (33), the first joint (351) being connected to the second joint (352).

BATTERY MODULE FEATURING PRESSURE DETECTION

Absstract of: WO2025255869A1

Disclosed in the present utility model is a battery module featuring pressure detection. The battery module comprises: a battery cell assembly, comprising a plurality of battery cells and end plates, the plurality of battery cells being sequentially stacked in an arrangement direction, and each end plate covering the outside of an outermost battery cell in the arrangement direction; a partition plate, the partition plate being provided between two adjacent battery cells in the arrangement direction; and a pressure detector, the pressure detector being used for detecting the pressure of the battery cells. The battery module featuring pressure detection of the present utility model is provided with a pressure detector configured to detect pressure changes when battery cells undergo deformation, thereby monitoring the expansion of the battery cells of the battery module.

CYLINDRICAL BATTERY CELL, BATTERY, AND ELECTRICAL DEVICE

Absstract of: WO2025256008A1

Provided in the present application are a cylindrical battery cell, a battery, and an electrical device. The cylindrical battery cell comprises a casing, an electrode assembly, and a binding member. The electrode assembly is accommodated inside the casing and comprises an electrode body and a tab, and the tab is led out from an end portion of the electrode body. The binding member is arranged between the casing and the electrode assembly. The binding member is disposed around an outer peripheral side of the electrode body in the circumferential direction of the electrode body. The binding member has a first end and a second end arranged in the circumferential direction, and the first end and the second end are spaced apart from each other. The cylindrical battery cell provided in the embodiments of the present application helps to improve the reliability performance of cylindrical battery cells.

BATTERY SYSTEM AND ELECTRIC DEVICE

Absstract of: WO2025256651A1

The present invention relates to the technical field of battery heat dissipation. Provided are a battery system and an electric device. The battery system comprises a case body, a first cold plate, a second cold plate, and a plurality of battery cell modules, wherein the first cold plate and the second cold plate are oppositely arranged on two sides of the case body, and an accommodating cavity is formed among the first cold plate, the second cold plate and the case body; the plurality of battery cell modules are arranged in the accommodating cavity, and a third cold plate is provided in each battery cell module, and is perpendicular to the first cold plate; a cooling channel is formed inside each of the first cold plate, the second cold plate and the third cold plates; and the cooling channels in the third cold plates in the plurality of battery cell modules are in communication with each other. The battery system of the present invention comprises three cold plates, which can increase the heat exchange area and improve the thermal management performance of the battery system.

TAB GLUE, NEGATIVE ELECTRODE SHEET AND LITHIUM-ION BATTERY

Absstract of: WO2025256662A1

Provided in the present application are a tab glue, a negative electrode sheet and a lithium-ion battery. The tab glue is an emulsion. The surface tension of the emulsion is 45-60 mN/m, and the viscosity thereof is 2000 mPa·s or more. The tab glue is favorable for reducing the capacity loss of a lithium-ion battery.

ELECTRODE ASSEMBLY AND BATTERY CELL

Absstract of: WO2025256622A1

An electrode assembly and a battery cell. The electrode assembly comprises: a plurality of positive electrode plates (1) and a plurality of negative electrode plates (2), wherein the positive and negative electrode plates are alternately stacked; and separators (3), wherein the separators are each arranged between a positive electrode plate (1) and a negative electrode plate (2) which are adjacent to each other. Each positive electrode plate (1) comprises a main body and a positive tab (101) arranged on one side of the main body; each negative electrode plate (2) has a negative tab (201) spaced apart from the positive tab (101); each main body has a conductive region (100) and an insulating region (200); the insulating region (200) is arranged at the edge of the side of the conductive region (100) having the positive tab (101), and the insulating region (200) protrudes from the negative electrode plate (2); and a clearance recess (102) is provided on the insulating region (200), and the clearance recess (102) is configured to provide clearance for the root of the bent negative tab (201). The electrode assembly of the present disclosure not only facilitates bending the negative tab (201), but also facilitates reducing the risk of the positive electrode plate (1) being pressed by the bent negative tab (201), and also facilitates reducing the effect on the capacity of the battery cell.

BATTERY-PACK COOLING SYSTEM AND BATTERY PACK

Absstract of: WO2025256616A1

Provided in the present application are a battery-pack cooling system and a battery pack. In the battery-pack cooling system, liquid cooling plates (1) are each provided with a coolant flow channel (11), which is configured for the flow of a coolant; the coolant in the coolant flow channels (11) can exchange heat with battery modules of a battery pack, and the coolant can flow through a liquid intake pipe assembly (2), the coolant flow channels and a liquid output pipe assembly (3) in sequence; and the liquid intake pipe assembly (2) comprises a main liquid intake pipe (21) and a first communication pipe (22), the main liquid intake pipe (21) being configured for the entry of the coolant, and the first communication pipe (22) being connected to the main liquid intake pipe (21) and being configured to divide the coolant into two parts, with one part flowing to one of the liquid cooling plates (1) located in the middle, and the other part flowing to the other liquid cooling plates (1).

BATTERY WITH SELECTIVELY LOCATED COMPONENTRY OF A BATTERY MANAGEMENT UNIT

Absstract of: US2025385326A1

A battery includes an enclosure having a longitudinal body section and a lateral body section extending from and normal to the longitudinal body section, where an intersection of the longitudinal body section and the lateral body section defines an interior corner. The battery also includes electrodes disposed within the enclosure. The battery also includes a battery management unit (BMU), where at least a portion of the BMU is disposed external to the enclosure and adjacent to the interior corner.

INSULATION SHEET AND BATTERY MODULE HAVING THE SAME

Absstract of: US2025385341A1

The present disclosure relates to an insulation sheet, and is directed to an insulation sheet improving heat propagation when heat propagation occurs within a battery module. The present disclosure provides an insulating sheet including two first layers, and a second layer located between the two first layers and including an insulation material, wherein at least one surface of the insulation sheet is formed with a bending portion.

HEAT INSULATING SHEET FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY MODULE INCLUDING THE SAME

Absstract of: US2025385340A1

The present disclosure relates to a heat insulating sheet for a rechargeable lithium battery, and a rechargeable lithium battery module including the heat insulating sheet. The heat insulating sheet for a rechargeable lithium battery includes a first base layer, an aerogel-containing layer, and a second base layer that are stacked together. The aerogel-containing layer includes a thermally conductive material-containing region, and a thermally conductive material is dispersed at high density in the thermally conductive material-containing region.

METHOD FOR RECYCLING WASTE LITHIUM-ION SECONDARY BATTERIES AND RECYCLED LITHIUM IRON PHOSPHATE POWDER OBTAINED THEREFROM

Absstract of: US2025385331A1

A method for recycling a waste lithium-ion secondary battery includes (a) loading an object to be heat-treated into a heat-treatment furnace, the object being at least a part of a waste lithium-ion secondary battery in which lithium iron phosphate powder is a positive electrode material, and including the positive electrode material, (b) increasing the temperature inside the heat-treatment furnace to a range of 200° C. to 400° C., (c) maintaining the increased temperature to heat treat the object to be heat-treated, and (d) discharging first powder produced after the completion of the heat treatment, wherein the first powder includes recycled lithium iron phosphate powder.

POSITIVE ACTIVE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, METHOD FOR PRODUCING POSITIVE ACTIVE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, POSITIVE ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, METHOD FOR MANUFACTURING NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, AND METHOD OF USING NONAQUEOUS ELECTROLYTE SECONDARY BATTERY

Absstract of: US2025385316A1

A positive active material for a nonaqueous electrolyte secondary battery is provided. The positive active material contains a lithium-transition metal composite oxide. The lithium-transition metal composite oxide has an α-NaFeO2-type crystal structure. The lithium-transition metal composite oxide is represented by the general formula Li1+αMe1−αO2 where 0<α, Me is a transition metal element containing Ni and Mn, or containing Ni, Mn, and Co, a molar ratio Mn/Me of Mn to Me meets Mn/Me≥0.45. The positive active material has a ratio a/b of 17≤a/b≤25 between a discharge capacity (a) from 4.35 V (vs. Li/Li+) to 3.0 V (vs. Li/Li+) and a discharge capacity (b) from 3.0 V (vs. Li/Li+) to 2.0 V (vs. Li/Li+).

EXPANSION BEAM, BOX ASSEMBLY, BATTERY AND ELECTRIC DEVICE

Absstract of: WO2025255921A1

An expansion beam (2), a box assembly (101), a battery (100) and an electric device (1000). The expansion beam (2) comprises a first beam body (21) and a second beam body (22), wherein the first beam body (21) has a first side (21a) and a second side (21b) which are opposite each other; at least one of the first side (21a) and the second side (21b) is adapted to be arranged towards a battery cell (4); the first beam body (21) comprises a first main body portion (211), a first flange portion (212) and a second flange portion (213); the first flange portion (212) extends from the first main body portion (211) in a direction close to the second flange portion (213) so as to close at least part of an open end of a first cavity (211a); the second flange portion (213) extends from the first main body portion (211) in a direction away from the first flange portion (212); the second beam body (22) at least covers at least one of the first side (21a) and the second side (21b) of the first beam body (21), so as to separate the first beam body (21) from the battery cell (4); and thermal insulation and electrical insulation properties of the second beam body (22) are both superior to that of the first beam body (21).

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

Absstract of: WO2025255964A1

A lithium-ion battery positive electrode material, a preparation method therefor, and a use thereof. The preparation method comprises the following steps: (1) mixing an elemental metal with a phosphoric acid solution and reacting to obtain a metal phosphate solution, wherein the elemental metal comprises elemental iron and/or elemental manganese; (2) mixing the metal phosphate solution, a lithium-containing solution, and a pH regulator solution and thermally reacting to obtain a reaction product; and (3) mixing the reaction product with a carbon source and sintering to obtain the lithium-ion battery positive electrode material. In the preparation method, ferrous dihydrogen phosphate or manganese dihydrogen phosphate generated by inexpensive metal iron or manganese reacting with phosphoric acid is used as a reaction raw material, the reaction raw material reacts with a lithium-containing solution at a low temperature under the action of a pH regulator, and subsequent sintering is performed to obtain a lithium iron (manganese) phosphate positive electrode material having a stable structure and excellent performance. Moreover, the preparation method involves simple operations, has low cost, and is suitable for industrial application.

BATTERY CELL FEEDING DEVICE, PACKAGING APPARATUS, AND BATTERY PRODUCTION SYSTEM

Absstract of: WO2025255917A1

A battery cell feeding device, a packaging apparatus, and a battery production system. The battery cell feeding device comprises: a transfer platform (100) having a placement portion (110) for placing a battery cell (900) thereon; and a lifting mechanism (200) comprising a plurality of material-receiving members (210) distributed at intervals, wherein all of the material-receiving members (210) can pass through the placement portion (110) and ascend and descend relative to the placement portion (110), so as to bear the battery cell (900) at a preset position and release the battery cell (900) onto the placement portion (110). When ascending to bear the battery cell, the material-receiving members can be offset from a clamping member on the battery cell so as to avoid interfering with the structure of the clamping member; and during the descending and resetting process, the material-receiving members release the battery cell onto the placement portion to complete the feeding of the battery cell, enabling the transfer platform to smoothly transfer the battery cell to a packaging station, thereby improving the positioning accuracy of the feeding of the battery cell, and thus improving the packaging quality and packaging efficiency of the battery cell.

SI-BASED ANODE WITH ENGINEERED SILICON-BASED MATERIALS

Absstract of: WO2025259696A1

Systems and methods utilizing aqueous-based polymer binders for silicon-based anodes may include an electrode coating layer on a current collector, where the electrode coating layer is formed from a silicon carbon composite or SiOx-based or Si- Carbon-SiOx-based powder and a water soluble polymer and may comprise one or more additional materials. The anode may be in a lithium ion battery.

A WIRELESSLY RECHARGEABLE BATTERY FOR POWERING DEVICES DESIGNED TO OPERATE USING STANDARDIZED ALKALINE AND NIMH BATTERY CELLS

Absstract of: WO2025259532A1

Wirelessly rechargeable battery systems are described. The wirelessly rechargeable batteries have a standardized consumer form factor, such as AAA, AA, C, D, or the like and can be used in consumer devices designed to operate using such consumer batteries. The wirelessly rechargeable batteries may be wirelessly recharged without removing the batteries from the consumer device by placing the consumer device (containing the batteries) near a wireless recharger.

BISMUTH FERRITE (BIFEO3) ANODE FOR HIGH-CAPACITY AND LONG-CYCLING LITHIUM-ION BATTERIES

Absstract of: WO2025259424A1

Disclosed herein is a battery (e.g., a Li-ion battery) comprising: an anode comprising bismuth ferrite and a binder; a cathode; and an electrolyte comprising a lithium compound and a fluoroethylene carbonate (FEC) additive. Batteries with a bismuth ferrite anode having a carboxymethyl cellulose (CMC) binder and a lithium-containing electrolyte with FEC additive, show a capacity of up to 750 mAh/g at 100 mA/g and high capacity retention, with over 400 mAh/g at 500 mA/g after 1,000 cycles.

ALKALI-METAL-ION CONDUCTING ORGANIC REDOX MATERIALS AND RECHARGEABLE SOLID-STATE BATTERIES MADE THEREOF

Absstract of: WO2025259955A1

The present disclosure pertains to redox molecules with structures described herein. The present disclosure also pertains to an electrode that includes the molecules. The electrode may include a cathode. The present disclosure also pertains to an electrochemical cell with a cathode that includes a molecule of the present disclosure. The electrochemical cell may include a solid-state battery that includes: a cathode with a molecule of the present disclosure, an anode, and a solid electrolyte between the cathode and the anode.

REVERSIBLE BATTERY PACK ASSEMBLY FOR BATTERY ELECTRIC VEHICLES

Absstract of: WO2025259511A2

A battery pack comprises an enclosure, and a plurality of batteries arranged within the enclosure. Each battery includes one or more electrochemical cells, and a case structured to contain the one or more electrochemical cells in an interior space of the case. Each case comprises a first end wall, an opposite second end wall, and a multi-sided wall connecting the first end wall and the second end wall thereby defining the interior space of the case. A multi-sided wall of the case of at least one of the batteries comprises at least one inwardly directed recess having a first section dimensioned to matingly engage a second section of a multi-sided wall of another of the batteries when the plurality of batteries are arranged within the enclosure.

POLYCYCLIC COMPOUND, AND PREPARATION METHOD THEREFOR AND USE THEREOF, ELECTROLYTE, AND BATTERY

Absstract of: WO2025256531A1

Provided are a polycyclic compound, and a preparation method therefor and the use thereof, an electrolyte, and a battery. The polycyclic compound comprises: a compound as represented by formula I, and chlorine-containing organic matter. On the basis of the mass of the polycyclic compound, the content of the compound as represented by formula I is greater than or equal to 99 wt%, and the total content of the chlorine-containing organic matter is less than or equal to 300 ppm. In formula I, R1 and R2 are respectively and independently any one of H, F, an alkyl and a fluoroalkyl.

ELECTROLYTE AND LITHIUM METAL BATTERY

Absstract of: WO2025256498A1

An electrolyte and a lithium metal battery (LMB). The electrolyte comprises a lithium salt, a solvent, a diluent and an additive, wherein the solvent is a phosphate-based solvent and/or a fluorine-containing phosphate-based solvent; the diluent is a fluorinated phosphazene flame retardant; and the additive comprises a fluorinated solvent. Furthermore, the fluorinated phosphazene flame retardant is selected from at least one of hexafluorocyclotriphosphazene, ethyoxyl pentafluorocyclotriphosphazene, trifluoroethyoxyl pentafluorocyclotriphosphazene and (phenoxyl)pentafluorocyclotriphosphazene. Furthermore, the additive further comprises an organic salt. The electrolyte can improve the oxidation resistance of local high-concentration electrolyte, and can also improve the flame retardance of the electrolyte, reduce the viscosity of the electrolyte and improve the wettability thereof, such that an LMB having a high energy density can operate safely and persistently; in addition, the electrolyte can reduce the adverse effect of a phosphate solvent on a lithium metal interface, and effectively improve the lithium-ion deposition/stripping stability, thereby achieving high-stability circulation of a high-voltage lithium metal battery.

ELECTRODE SHEET AND PREPARATION METHOD THEREFOR, AND ELECTRODE ASSEMBLY, AND SECONDARY BATTERY

Absstract of: WO2025256316A1

The present application relates to an electrode sheet and a preparation method therefor, and an electrode assembly, and a secondary battery. The electrode sheet comprises a current collector, a first active material layer and a tab, wherein the current collector has a first surface; the first active material layer is arranged on the first surface; and the first surface has a first bare foil region, and the tab is arranged in the first bare foil region. The electrode sheet comprises a first adhesive layer. The tab has a first portion and a second portion connected to each other, the first adhesive layer is bonded between the first portion and the first bare foil region, and the second portion is configured to be externally connected to an electronic device. The surface of the first portion facing the first bare foil region has a recess region, and several embedding recesses are recessed in the recess region, wherein in the direction of thickness of the tab, the embedding recesses are recessed relative to the second portion, and the first adhesive layer is embedded in at least some of the embedding recesses. There is no welding burr, and therefore there is no need to provide a tab adhesive on the tab or in the first bare foil region, thereby saving on the space occupied by the tab adhesive, and improving the energy density of the secondary battery while reducing costs.

POWER ELECTRONIC INTELLIGENT BATTERY UNIT

Absstract of: US2025385325A1

Disclosed is a power electronic intelligent battery unit, including: a battery module, the battery module comprising a plurality of battery cells connected in series and sensors for measuring the voltage, current, pressure and/or temperature of the battery cells; and an intelligent battery interface, the intelligent battery interface being connected to an output side of the battery module and the sensors, and the intelligent battery interface having a power interface and an information interface for the outside, wherein the battery module monitors the voltage, current, pressure and/or temperature information of the battery cells, while providing or absorbing power by means of the intelligent battery interface.

Pressure Regulation System For Silicon Dominant Anode Lithium-Ion Cell

Absstract of: US2025385299A1

The disclosure herein pertains to a pressure regulation system for use in a silicon dominate anode lithium-ion cell. The pressure regulation system regulates a lifetime pressure on the lithium-ion cell in order to correct for capacity loss and mechanical failure due the expansion of silicon during operation. The pressure regulation system along with a housing maintains a certain pressure range on the lithium-ion cells during the cycling and the operational life of the energy storage device.

SOLID ELECTROLYTE DOPED WITH FLUORINE AND ALL SOLID-STATE BATTERY COMPRISING SAME

Absstract of: US2025385303A1

Disclosed is a solid argyrodite electrolyte doped with fluorine (F). In some embodiments, the argyrodite electrolyte has a formula (I), Li7-nPS6-nHan-xFx (I), wherein Ha is a halogen element other than fluorine (F), 0.02≤x<0.1, and 1.0

SOLID-STATE BATTERY AND METHOD OF MANUFACTURING SOLID-STATE BATTERY

Absstract of: US2025385302A1

A solid-state battery of the present disclosure includes an electrode body, current collector tabs that are connected to the electrode body, and a protective member. The electrode body has a positive electrode current collector, a positive electrode active material layer, a solid electrolyte layer, a negative electrode active material layer, and a negative electrode current collector that are laminated along a lamination direction. The solid electrolyte layer has a support including a plurality of fibers that are different in material from the protective member. The support projects from an end surface of the solid electrolyte layer. The protective member is connected to the support and disposed at the end surface.

BATTERY MODULE

Absstract of: US2025385296A1

Disclosed is a battery module. The battery module includes a battery stack including a plurality of battery cells stacked in a first direction, and one or more pad members provided between the plurality of battery cells, and side plates provided at two opposite sides of the battery stack in the first direction, in which an extension space is formed in the side plate and extends in one direction.

ELECTROCHEMICAL APPARATUS AND ELECTRONIC APPARATUS

Absstract of: US2025385310A1

An electrochemical apparatus includes a negative electrode plate and an electrolyte. The negative electrode plate includes a negative electrode material layer. The negative electrode material layer includes a silicon-based material. The silicon-based material includes silicon element, and based on a total mass of the negative electrode material layer, a mass percentage of the silicon element is 30% to 60%. The electrolyte includes fluoroethylene carbonate and a compound of formula I. R1 and R2 are each independently selected from hydrogen atom, fluorine atom, substituted or unsubstituted C1-C5 alkyl group, substituted or unsubstituted C6-C10 aryl group, and substituted or unsubstituted C2-C6 carboxylate group, and when substituted, the substituents on the carboxylate group, the alkyl group, and the aryl group are fluorine atoms.

BATTERY CELL, BATTERY AND ELECTRIC DEVICE

Absstract of: WO2025255979A1

Disclosed in the present application are a battery cell, a battery and an electric device. The battery cell comprises an electrode assembly and a casing, wherein the electrode assembly is located in the casing, and the casing comprises a first side wall and a second side wall; and a first arc-shaped part is connected between the first side wall and the second side wall, the first arc-shaped part being arranged opposite an edge of the electrode assembly. The wall surface of the first arc-shaped part facing the electrode assembly comprises first circular-arc surfaces and a second circular-arc surface; in the lengthwise direction of the edge of the electrode assembly, the first circular-arc surfaces are connected to two ends of the second circular-arc surface, the radius of the second circular-arc surface being smaller than that of the first circular-arc surfaces.

CORE-SHELL TERNARY PRECURSOR AND PREPARATION METHOD THEREFOR, AND POSITIVE ELECTRODE MATERIAL

Absstract of: WO2025255960A1

A core-shell ternary precursor and a preparation method therefor, and a positive electrode material. The core-shell ternary precursor comprises a core and a shell that coats the core. The core is expressed as NixCoyMnz(OH)2-a(WO4)a, wherein x is greater than 0, but less than 1; y is greater than 0, but less than 1; z is greater than 0, but less than 1; x+y+z=1; and the value range of a is 0.01-1. The shell contains aluminum. By means of a combination of tungsten doping and aluminum doping, the advantages of the both are incorporated, and a high-performance precursor is prepared. In addition, the core-shell precursor can effectively improve the surface structure of a precursor, suppress the propagation of cracks on the surface of a high-nickel large-particle precursor, and also effectively inhibit the corrosion of a positive electrode material by an electrolyte, thereby prolonging the battery life.

THERMAL LAMINATION DEVICE

Absstract of: WO2025256003A1

The present application discloses a thermal lamination device. The device comprises a lamination roller assembly; the lamination roller assembly comprises two lamination rollers; the surface of at least one lamination roller is provided with a protruding structure used for thermally laminating a separator at an end of an electrode sheet during rotation; the two lamination rollers have a first gap (S1) formed therebetween at the protruding structure, and a second gap (S2) formed therebetween at other positions, wherein the first gap S1 is smaller than the second gap S2. The thermal pressing area of the thermal lamination rollers in the present application is small, thereby facilitating subsequent electrolyte injection.

CARBON-BASED CATHODE MATERIAL FOR BATTERIES, PREPARATION METHOD, AND DUAL-ION BATTERY

Absstract of: WO2025255710A1

Provided are a carbon-based cathode material for batteries, a preparation method, and a dual-ion battery. The preparation method for the carbon-based cathode material for batteries comprises the following steps: performing carbon deposition to prepare an upright carbon material by means of using microwave plasma chemical vapor deposition, then etching the upright carbon material using an etching gas containing oxygen, and repeating the carbon deposition and etching to obtain the carbon-based cathode material for batteries. The vertical open structure of the carbon-based cathode material for batteries can directionally guide anions and electron transport by reducing the lengthy carrier transport path, so as to improve mass and charge transfer kinetics; moreover, the carbon-based cathode material for batteries has large interlayer spacing and an ordered spatial structure, which can further enhance kinetic performance, achieving fast charging capability and long cycle life for a battery.

ELECTRODES HAVING ALKALI METAL SALTS FOR ALL-SOLID-STATE BATTERIES

Absstract of: WO2025259852A1

Described herein is an electrochemical device including a first current collector; a composite anode architecture disposed on the first current collector, wherein the composite anode architecture comprises one or more mixed ionic-electronic conductors, one or more alkali metal salts, wherein at least one alkali metal of the alkali metal salts is different from a working alkali metal; and a solid electrolyte disposed on the composite anode architecture. In some embodiments, the electrochemical device further includes a composite cathode disposed on the solid electrolyte and a second current collector disposed on the composite cathode.

SELECTED CATION RECYCLING USING SELECTIVE ELECTRODIALYSIS

Absstract of: WO2025259856A1

Electrodialysis is used with selective and bipolar ion-exchange membranes to recycle cations, such as lithium from spent lithium-ion batteries. The process focuses on two key stages: (a) selective electrodialysis (SED) to isolate selected cations, such as lithium, from multivalent transition metals to produce a selected-cation-enriched stream and (b) bipolar membrane electrodialysis (BMED) to produce a purified selected-cation-hydroxide stream and a hydrochloric acid stream from the selected-cation-enriched stream.

ELECTROLYTE FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY COMPRISING SAME

Absstract of: WO2025259070A1

An electrolyte for a lithium secondary battery according to embodiments of the present disclosure comprises a lithium salt and a compound containing at least two sulfonate groups and at least one cyclic group. A lithium secondary battery according to embodiments of the present disclosure comprises: an electrode assembly including at least one positive electrode and at least one negative electrode; and the electrolyte.

FIRE-EXTINGUISHING AGENT FOR METAL FIRE, CONTAINING POROUS CERAMIC PARTICLES, AND PREPARATION METHOD THEREFOR

Absstract of: WO2025259067A1

The present invention relates to a fire-extinguishing agent for a metal fire, and a preparation method therefor. The fire-extinguishing agent of the present invention absorbs exploding heat when a metal fire occurs, and thus is effective for the early suppression of the fire, and forms a glass film over the point of origin of the metal fire, thereby maximizing an oxygen blocking and smothering effect. Particularly, the fire-extinguishing agent of the present invention is a highly eco-friendly fire-extinguishing agent which is highly eco-friendly, completely harmless to the human body, and does not generate any toxic substances at a high temperature at which a fire occurs. The fire-extinguishing agent of the present invention may be used in place of a pouch and a blanket capable of suppressing a lithium battery fire and a metal fire, a filler for a cover for suppressing an electric vehicle fire, and water in a settling tank for extinguishing an electric vehicle fire.

SEPARATOR FOR ELECTROCHEMICAL DEVICE AND METHOD FOR MANUFACTURING SAME

Absstract of: WO2025259066A1

A separator according to the present invention can not only exhibit excellent adhesion to an electrode but also be manufactured as a thin film, leading to superior resistance and ion conductivity properties. Additionally, compared with existing mass-produced products, the separator shows improved coating appearance quality, thereby ensuring yield enhancement.

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

Absstract of: WO2025256250A1

Disclosed in the present application are a negative electrode active material and a preparation method therefor, a secondary battery, and an electric device. The negative electrode active material comprises negative electrode active material particles, which comprise a first phase and a second phase, wherein the X-ray diffraction pattern of the first phase has a first diffraction peak when 2θ falls within the range of 20.5-22°, the peak area of the first diffraction peak being S1; and the X-ray diffraction pattern of the second phase has a second diffraction peak when 2θ falls within the range of 22-24.5°, the peak area of the second diffraction peak being S2. The negative electrode active material particles satisfy the following conditions: 40%

SECONDARY BATTERY AND ELECTRONIC DEVICE

Absstract of: WO2025256275A1

A secondary battery and an electronic device, relating to the technical field of new energy. The secondary battery comprises a positive electrode, a negative electrode, an electrolyte, and a separator; the separator comprises a polyolefin substrate and a coating provided on at least one surface of the polyolefin substrate, and the coating comprises boehmite; the electrolyte contains specific amounts of 1,3-propane sultone, 1,3,6-hexanetricarbonitrile, lithium difluorophosphate, a boron-containing lithium salt, and adiponitrile, and the total amount of 1,3-propane sultone and 1,3,6-hexanetricarbonitrile, the total amount of lithium difluorophosphate and the boron-containing lithium salt, and the content of adiponitrile are all within specific ranges. In this way, the secondary battery can maintain a high energy density, have long high-voltage service life, and also have good safety.

LITHIUM-ION BATTERY CERAMIC SEPARATOR BINDER, PREPARATION METHOD THEREFOR AND USE THEREOF

Absstract of: WO2025256066A1

The present invention belongs to the technical field of battery separator binders, and relates to a lithium-ion battery ceramic separator binder, a preparation method therefor, and a use thereof. The technical problem resolved by the present invention is providing a lithium-ion battery ceramic separator binder. The binder comprises a graft polymer and a water-soluble polymer. The graft polymer has an acrylamide polymer as the main chain, to graft polymer latex particles, and the polymer monomers of the polymer latex particles comprise acrylate monomers. The binder of the present invention has good anti-curling performance; when used to prepare ceramic slurry-coated separators, the binder can prevent the occurrence of curling in the separator. Moreover, the binder of the present invention can be prepared using an aqueous solution polymerization method, having a simple preparation process, good process and product stability, and a production process that can effectively interface with the production process of ceramic separator slurry, thereby optimizing the production process of lithium-ion battery ceramic separators.

BATTERY CELL, BATTERY AND ELECTRICAL DEVICE

Absstract of: WO2025256126A1

Disclosed in the present application are a battery cell, a battery and an electric device. The battery cell comprises a casing, a conductive member, a first insulating member and a terminal post, wherein the casing has a first wall; the conductive member is arranged on the outer side of the first wall; and the first insulating member is arranged between the first wall and the conductive member to insulate the conductive member from the first wall. The terminal post is connected to the conductive member. The battery cell further comprises a protective member. In the direction of thickness of the first wall, at least part of the protective member is arranged between the first insulating member and the conductive member, the melting point of the protective member being higher than that of the conductive member. By means of the provision of the protective member between the first insulating member and the conductive member, burning deformation of the first insulating member is alleviated, reducing the risk of failure of the first insulating member, and improving the reliability of the battery cell. In addition, the provision of the protective member enables a reduction in the thickness of the conductive member, thereby reducing the space occupied by the conductive member in the direction of thickness of the first wall, improving the energy density of the battery cell.

DEFECT INSPECTION SYSTEM AND METHOD FOR BATTERY CELL

Absstract of: WO2025258923A1

The present invention provides a battery cell defect inspection system comprising: a voltage measurement unit (200) for measuring a first voltage (V1) and a second voltage (V2) of a target battery cell in a no-load state at a predetermined time interval; a capacity calculation unit (300) for calculating a capacity change amount corresponding to a voltage change from the first voltage (V1) to the second voltage (V2) by using first correlation information, which is pre-stored correlation information between the voltage and capacity of a reference battery cell; and a defect inspection unit (400) for inspecting the defect of the target battery cell on the basis of the capacity change amount. The first correlation information may be obtained by discharging the reference battery cell at a speed greater than 0 and less than or equal to a value obtained by multiplying a first speed by P (P=2). An absolute value of a voltage difference (E) between bottoms (B) corresponding to each other or a voltage difference (E) between peaks (P) corresponding to each other of two differential profiles respectively corresponding to the two pieces of correlation information obtained while discharging the reference battery cell at the first speed and a second speed obtained by multiplying the first speed by r (0<=r<= 1/2) may be d (d=|V1-V2|*q, q=1/30) or less.

BATTERY DEVICE

Absstract of: WO2025258993A1

The technical idea of the present invention comprises: a base frame; a first cell assembly provided on the main surface of the base frame and including a plurality of first battery cells stacked in the vertical direction perpendicular to the main surface of the base frame and a first sidewall attached to the plurality of first battery cells; and a second cell assembly provided on the main surface of the base frame and including a plurality of second battery cells stacked in the vertical direction, wherein the first sidewall includes a venting adjustment portion configured to adjust a venting direction of gas discharged from the plurality of second battery cells, and the venting adjustment portion includes inclined surfaces provided on a surface of the first sidewall facing the plurality of second battery cells and inclined with respect to the vertical direction.

GEL POLYMER ELECTROLYTE-SEPARATOR COMPOSITE AND ELECTROCHEMICAL DEVICE COMPRISING SAME

Absstract of: WO2025258981A1

The present invention relates to: a gel polymer electrolyte-separator composite for an electrochemical device; and an electrochemical device comprising same. According to the present invention, provided are: a gel polymer electrolyte-separator composite for an electrochemical device, the gel polymer electrolyte-separator composite being capable of preventing the occurrence of internal short circuits caused by the growth of lithium dendrites; and an electrochemical device comprising same.

COATING APPARATUS

Absstract of: WO2025258913A1

The technical idea of the present invention provides a coating apparatus comprising: a coating die including a manifold accommodating a first coating solution and a die lip having a discharge port for discharging the first coating solution; and a coating shim disposed in the coating die, wherein the coating shim includes: a body shim including a center body and a first side body, the center body being spaced apart from the die lip with the manifold therebetween, and the first side body extending from the center body toward the die lip and not overlapping the manifold; and a first spacer shim extending between the center body and the die lip, the first spacer shim including an inner portion overlapping the manifold and an outer portion disposed between the manifold and the first side body.

BATTERY CELL WITH A THERMAL RUNAWAY PROPAGATION MANAGEMENT SYSTEM AND METHOD OF MANUFACTURING SAME

Absstract of: US2025385338A1

A prismatic battery cell comprising a prismatic can defining a chamber, a first terminal and a second terminal each coupled to the prismatic can, a vent coupled to the prismatic can and in fluid communication with the chamber, and battery internals arranged in the chamber comprising at least one jelly roll. The prismatic battery cell further comprising a thermal runaway propagation management system comprising a bladder arranged in the chamber with respect to the at least one jelly roll, a port coupled to the prismatic can and in fluid communication with the bladder, and a fluid at least partially filling the bladder.

RECONFIGURABLE BATTERY ENERGY STORAGE SYSTEM (BESS) AC WIRING

Absstract of: US2025385324A1

A battery energy storage system is provided and comprises a battery module comprising a plurality of batteries and a plurality of microinverters including wiring that is grouped in a branch cable that connects to a trunk cable for connecting the wiring to a wiring box.

CASING ASSEMBLY, BATTERY CELL, BATTERY, AND ELECTRIC APPARATUS

Absstract of: US2025385353A1

A casing assembly, a battery cell, a battery, and an electric apparatus are disclosed. The casing assembly includes a casing and a sealing assembly. The casing has a through hole, and the sealing assembly seals the through hole. The sealing assembly includes an insulating member that covers a conductive member. The conductive member includes a first contact portion and a second contact portion. A connecting member with a hollow inner cavity is connected to the casing, and the insulating member fills the inner cavity. The first contact portion is located on the inner side of the casing, and the second contact portion is located on the outer side. This structure allows the sealing assembly to block the through hole and helps prevent electrolyte leakage, thereby enhancing the sealing performance of the casing.

BATTERY, ELECTRICAL DEVICE, AND ENERGY STORAGE DEVICE

Absstract of: US2025385382A1

A battery includes: a battery cell with a pressure relief mechanism provided at a first wall thereof; a support component configured to support the battery cell and including first and second support components that are connected and located on the same side of the battery cell, the first support component being located between the first wall and the second support component and attached to the first wall, the first support component being provided with a first through hole corresponding to the pressure relief mechanism, and the second support component being provided with a second through hole corresponding to the pressure relief mechanism; and a first protective component configured to close the second through hole and to be destroyed when the pressure relief mechanism is actuated, so as to allow an emission from the battery cell to pass through the second support component.

Battery Cell and Battery Module Comprising Same

Absstract of: US2025385355A1

The present invention, in order to improve stability by directing a venting direction, provides a battery cell and a battery module comprising same, comprising: an electrode assembly; a case for accommodating the electrode assembly; an electrode terminal electrically connected to the electrode assembly; and a sealing portion to which an edge of the case is joined, wherein the sealing portion comprises a first sealing portion in which the electrode terminal is embedded and a second sealing portion in which the electrode terminal is not embedded, a folding portion is formed on at least a part of the second sealing portion, and a holding member coupled to the folding portion is included.

SECONDARY BATTERY AND ELECTRIC DEVICE

Absstract of: WO2025255997A1

A secondary battery and an electric device. The secondary battery comprises a positive electrode sheet; the positive electrode sheet comprises a positive electrode current collector and a positive electrode active material layer provided on at least one side of the positive electrode current collector; the positive electrode active material layer comprises a positive electrode active material; the positive electrode active material comprises a lithium-containing transition metal oxide; a particle of the lithium-containing transition metal oxide comprises an inner region and a surface layer region at least partially surrounding the inner region; the surface layer region comprises a first surface layer region and a second surface layer region; the second surface layer region is located between the first surface layer region and the inner region; the first surface layer region and the second surface layer region each comprise a first phase structure and a second phase structure; the first phase structure comprises a layered phase structure; the second phase structure comprises at least one of a spinel phase structure and a rock salt phase structure; the first surface layer region comprises a rock salt phase structure and a layered phase structure; and the second surface layer region comprises a spinel phase structure and a layered phase structure. The secondary battery has excellent cycle performance.

BATTERY THERMAL MANAGEMENT SYSTEM AND METHOD, ELECTRONIC DEVICE, AND STORAGE MEDIUM

Absstract of: WO2025256122A1

The present application provides a battery thermal management system and method, an electronic device, and a storage medium. The system comprises an air conditioning refrigeration loop, a battery liquid cooling loop, and an external pipe. The battery liquid cooling loop comprises a battery pack, a heat exchanger, and a control valve; the control valve is configured to control the battery liquid cooling loop to be connected to or disconnected from the air conditioning refrigeration loop or the external pipe; and the heat exchanger is configured to implement heat energy exchange between the battery liquid cooling loop and the air conditioning refrigeration loop when the battery liquid cooling loop is connected to the air conditioning refrigeration loop. The external pipe is connected to an external device, wherein when the battery liquid cooling loop is connected to the external pipe, the external device is configured to cool the battery pack. In the present application, the external device can be directly used to cool the battery pack, enhancing the heat dissipation performance of batteries in super charging and fast charging situations.

ELECTROLYTE AND BATTERY COMPRISING SAME

Absstract of: WO2025256120A1

An electrolyte and a battery comprising same. The electrolyte comprises a solvent, an electrolyte, and an additive. The additive comprises a film-forming additive and a polyether-modified polysiloxane. The polyether modified polysiloxane has a structure represented by formula I. In formula I, R1, R2 and R3 are each independently selected from C1-C6 hydrocarbyl or C6-C10 aryl, 1<m<4, 0<n<4, and 0<k<4. In the electrolyte, the film-forming additive and the polyether-modified polysiloxane are used in combination, which helps to form a thinner and denser high-quality SEI film with good flexibility while effectively improving the wettability of the electrolyte; therefore, the internal impedance of a battery can be effectively reduced, and the battery is allowed to have good cycling performance and storage performance under high-temperature conditions.

ADHESIVE FOR POWER STORAGE DEVICE PACKAGING MATERIAL, PACKAGING MATERIAL FOR POWER STORAGE DEVICE, CONTAINER FOR POWER STORAGE DEVICE, AND POWER STORAGE DEVICE

Absstract of: WO2025258448A1

The present disclosure provides: an adhesive for a power storage device packaging material, the adhesive exhibiting, even at a low coating amount, high impact resistance after molding and after a wet heat resistance test that is harsher than in the past; a packaging material for a power storage device, the packaging exhibiting excellent impact resistance; a container for a power storage device; and a power storage device. The adhesive for a power storage device packaging material according to the present disclosure is constituted from at least a polyester polyol (A) and a polyisocyanate (B). The polyester polyol (A) contains 10-60 mol% of constituent units derived from a polyhydric alcohol (a1) having a melting point of 10-50ºC. In a cured product, the storage elastic modulus at 25°C (Er25 MPa) and the storage elastic modulus at 60°C (Er60 MPa) satisfy conditions (i) and (ii). Condition (i): Er60 is 50-1000 MPa. Condition (ii): Er25 and Er60 satisfy the relationship 1≤(Er25-Er60)/Er60≤7.

BATTERY MODULE AND BATTERY PACK COMPRISING SAME

Absstract of: WO2025258817A1

A battery module according to one embodiment of the present invention comprises: a battery cell stack formed by stacking a plurality of battery cells; and a bus bar frame which covers at least one surface of the battery cell stack, and on which at least two terminal bus bars electrically connected to the battery cell stack are mounted, wherein the terminal bus bar includes at least one coupling slit for electrical connection with an external component.

ELECTRODE RESISTANCE MEASUREMENT DEVICE

Absstract of: WO2025259092A1

The present invention relates to an electrode resistance measurement device. The objective of the present invention is to provide an electrode resistance measurement device comprising: a first terminal unit, which is in direct contact with an exposed surface of an electrode layer so as to be electrically connected thereto; a second terminal unit, which is in direct contact with a current collector so as to be electrically connected thereto; and a resistance measurement unit for measuring the electrical resistance between the first terminal unit and the second terminal unit, wherein the first terminal unit has a surface, which is in contact with the electrode layer and is formed as a microporous layer, and the second terminal unit includes a fixed means fixed to an uncoated part of the current collector, and thus through-plane resistance of the electrode layer formed on one surface of the current collector can be measured.

NON-CONTACT LIQUID HEAT DISSIPATION MATERIAL REMIXING DEVICE AND LIQUID HEAT DISSIPATION MATERIAL REMIXING METHOD USING SAME

Absstract of: WO2025259085A1

A non-contact liquid heat dissipation material remixing device and a liquid heat dissipation material remixing method using same according to the present invention can optimize a remixing process by controlling process conditions while suppressing phase separation of a heat dissipation material through the remixing process of the liquid heat dissipation material. In particular, by adjusting the rotation time and rotation direction of the heat dissipation material and the inclination of a container containing the material, the miscibility of a polymer resin and thermally conductive particles can be increased and heat dissipation characteristics can be improved.

POWER STORAGE DEVICE

Absstract of: US2025385377A1

A power storage device includes: a first power storage stack including a plurality of power storage cells; a second power storage stack including a plurality of power storage cells; and a partition wall separating the first and second power storage stacks from each other. The power storage cells each include a cell main body and an external terminal. The partition wall includes: an upper partition portion located at a higher position than the external terminal; a lower partition portion located at a lower position than the external terminal; and a connecting portion located between a pair of the external terminals adjacent to each other in the second direction, and connecting the upper and lower partition portions to each other. A width of the connecting portion is smaller than a width of the upper partition portion and a width of the lower partition portion.

SINGLE POUCH BATTERY CELLS AND METHODS OF MANUFACTURE

Absstract of: US2025385346A1

Apparatus, systems, and methods described herein relate to the manufacture and use of single pouch battery cells. In some embodiments, an electrochemical cell includes a first current collector coupled to a first portion of a pouch, the first current collector having a first electrode material disposed thereon, a second current collector coupled to a second portion of the pouch, the second current collector having a second electrode material disposed thereon, and a separator disposed between the first electrode material and the second electrode material. The first portion of the pouch is coupled to the second portion of the pouch to enclose the electrochemical cell.

BATTERY ASSEMBLY AND BATTERY PACK

Absstract of: US2025385393A1

A battery assembly includes: a first binding bar provided to cover a side of each of a plurality of battery cells on which an electrode terminal is disposed; and a plurality of bus bars that each electrically join electrode terminals of battery cells adjacent to each other, wherein each of the bus bars is fixed at a position facing the electrode terminals on an inner surface side of the first binding bar on which the battery cells are located, the bus bar is not fixed to each of the electrode terminals and is in contact with and connected to the electrode terminal, and the bus bar includes a base portion composed of a resin, and a bus bar terminal embedded in the base portion and having a first contact surface and a second contact surface each exposed from the base portion to make contact with the electrode terminal.

COMPOSITION COMPRISING A MOISTURE-CROSSLINKABLE POLYMER

Absstract of: US2025385357A1

The invention relates to a composition comprising: —a moisture-crosslinkable polymer, —at least 1% by weight of unexpanded heat-expandable organic particles, and—at least 20% by weight of an inorganic filler, the weight percentages being with respect to the total weight of the composition. The invention also relates to a method for bonding substrates implementing the composition according to the invention. Furthermore, the invention relates to an article comprising the composition according to the invention. The invention further relates to a method for separating substrates implementing the composition according to the invention and comprising a heating step. Finally, the invention relates to the uses of the composition according to the invention.

BATTERY PACK

Absstract of: US2025385374A1

A battery pack includes a battery cell assembly including one or more battery cells, a case in which at least a portion of the battery cell assembly is accommodated, the case including a first groove and a second groove, a cover coupled to the case, and a sealing member between the case and the cover, a portion of the sealing member being located in the first groove and the second groove.

Battery Pack

Absstract of: US2025385375A1

Disclosed is a battery pack in which a fastening recess is provided on a side surface of a vertical frame and a CMU is fastened to the fastening recess, thereby securing rigidity of the vertical frame and maximizing an internal space of the battery pack.

BATTERY CELL, BATTERY, AND PREPARATION METHOD FOR BATTERY CELL

Absstract of: WO2025255935A1

The present invention relates to the technical field of batteries, and in particular relates to a battery cell, a battery, and a preparation method for the battery cell. The battery cell comprises electrode sheets, wherein each electrode sheet comprises a current collector, which comprises a first wall surface; the first wall surface comprises a first coating area, a second coating area and a first non-coating area, the first non-coating area being arranged between the first coating area and the second coating area; and the current collector is bent at the first non-coating area. The battery comprises the battery cell. The preparation method for the battery cell comprises the following steps: providing several first non-coating areas on an electrode sheet; performing die-cutting on the electrode sheet to form several sub-electrode sheets, each sub-electrode sheet comprising a first non-coating area; stacking the sub-electrode sheets in the direction of thickness to form a stacked core, the first non-coating areas on each sub-electrode sheet being arranged opposite each other in the direction of thickness of the stacked core; bending the stacked core at the first non-coating areas; and performing post-processing on the bent stacked core to obtain the battery cell. By means of the battery cell and the battery, the internal space of a battery compartment can be effectively utilized.

BATTERY GROUPING DEVICE, PRODUCTION LINE, AND BATTERY GROUPING METHOD

Absstract of: WO2025255939A1

Provided in the embodiments of the present disclosure are a battery grouping device, a production line, and a battery grouping method. The battery grouping device comprises a first conveying module, a grouping module, a second conveying module and a pressurizing module. The first conveying module is configured to convey a plurality of battery cells. The grouping module comprises a grouping platform, a pressing mechanism and a feeding mechanism. The feeding mechanism comprises a first driving member and a feeding member. The feeding mechanism pushes the battery cells on the first conveying module to the grouping platform, and the pressing mechanism is capable of selectively pressing the battery cells located on the grouping platform. The feeding mechanism is capable of pushing the battery cells on the grouping platform to the second conveying module to be combined into a battery pack, and small surfaces of adjacent battery cells in the battery pack are in contact with each other. The pressurizing module comprises a pressurizing mechanism. The second conveying module is configured to convey the battery pack to the pressurizing module. The pressurizing mechanism is configured to pressurize the battery pack in a first direction.

BATTERY CELL, BATTERY, AND ELECTRICAL DEVICE

Absstract of: WO2025255927A1

The present application provides a battery cell, a battery and an electrical device. The battery cell comprises a casing, an electrode terminal, an electrode assembly, and a current collecting member. The electrode terminal is provided on the casing. The electrode assembly is accommodated in the casing, and the end of the electrode assembly facing the electrode terminal is provided with a first tab. The current collecting member is accommodated in the casing and disposed on the side of the first tab facing the electrode terminal; the current collecting member comprises a first current collecting portion and a second current collecting portion connected to the first current collecting portion; the first current collecting portion is welded to the electrode terminal; the second current collecting portion is connected to the tab; and the thickness of the first current collecting portion is greater than that of the second current collecting portion.

SECONDARY BATTERY ELECTRODE BINDER COMPOSITION COMPRISING FUNCTIONALIZED CELLULOSE AND METHOD FOR MANUFACTURING DRY ELECTRODE FOR SECONDARY BATTERY USING SAME

Absstract of: WO2025258905A1

The present invention relates to a dry electrode binder composition for a secondary battery, the dry electrode binder composition comprising cellulose functionalized to have an ionic functional group or a polar functional group bonded thereto. Accordingly, the composition makes it possible to manufacture a dry electrode without a fluorine-based binder. Moreover, the composition not only has excellent dispersibility and adhesion compared to a PTFE binder used as a conventional dry electrode binder, but also exhibits excellent electrolyte wettability through the interaction between an electrolyte and cellulose, thus making it possible to form a stable electrode-electrolyte interface. As a result, it is possible to manufacture a high-capacity thick film electrode, achieve a secondary battery having high energy density, and prepare for restrictions on the use of perfluorinated compounds.

NEGATIVE ELECTRODE FOR LITHIUM METAL BATTERY, AND LITHIUM METAL BATTERY COMPRISING SAME

Absstract of: WO2025258937A1

Provided are a negative electrode for a lithium metal battery and a lithium metal battery comprising same, the negative electrode comprising: a negative electrode current collector; and a protective layer disposed on the negative electrode current collector, wherein the protective layer comprises large particles and small particles, and the large particles and the small particles include a concentration gradient formed in the thickness direction of the protective layer.

POWER STORAGE DEVICE

Absstract of: WO2025258700A1

A power storage device 10 includes: an electrolyte 12 containing a lithium imide salt and an organic solvent; a container 11 filled with the electrolyte 12; a positive electrode 30 which includes a compound containing lithium atoms that are ionized in the electrolyte 12 and that are involved in charge and discharge; a negative electrode 20 which is arranged in the electrolyte, includes a metal substrate 23 constituting a collector 21, and is configured so that a layer where the lithium atoms are deposited is formed on the surface of the negative electrode during charging; and a separator 15 which has electric insulation properties, divides the inside of the container 11 into a first electrode chamber 16 where the negative electrode is disposed and a second electrode chamber 17 where the positive electrode 30 is disposed, and transmits lithium ions moving between the first electrode chamber 16 and the second electrode chamber 17.

REFRIGERATION CYCLE DEVICE

Absstract of: WO2025258236A1

This refrigeration cycle device comprises a main refrigeration cycle (10), a sub-refrigeration cycle (20), and a heat medium circuit (30). The main refrigeration cycle (10) has a main compression unit (11), a first main evaporation unit (15), and a second main evaporation unit (16). The sub-refrigeration cycle has a sub-compression unit (21) and a sub-evaporation unit (26). The heat medium circuit (30) has a low temperature-side heat medium circuit (301) in which a second temperature adjustment heat exchange unit (80a) is disposed. In a second object normal cooling mode, the main compression unit (11) is stopped, the sub-compression unit (21) is operated, and the heat medium cooled by the sub-evaporation unit (26) is made to flow into the second temperature adjustment heat exchange unit (80a). In a second object large cooling mode, the main compression unit (11) is operated, the sub compression unit (21) is operated, and the heat medium cooled by the second main evaporation unit (16) and the heat medium cooled by the sub-evaporation unit (26) are made to flow into the second temperature adjustment heat exchange unit (80a).

BATTERY MODULE AND BATTERY PACK INCLUDING THE SAME

Absstract of: US2025385370A1

A battery module may include a first sub-module and a second sub-module each including a battery cell assembly. Additionally, the battery cell assembly may include a plurality of stacked battery cells, a busbar configured to electrically connect the battery cells, and a busbar frame covering the battery cell assembly on at least one side. Further, the battery module may also include a module housing that simultaneously houses the first sub-module and the second sub-module, and a terminal assembly located at a portion overlapping with an area between the first sub-module and the second sub-module. Additionally, an opening may be formed in a part of the module housing, and the terminal assembly is connected to the terminal busbar of each of the first sub-module and the second sub-module through the opening.

BATTERY STANDING METHOD AND DEVICE

Absstract of: US2025385409A1

A battery standing method comprises the following steps: S1: putting a battery subjected to electrolyte injection into an electrolyte injection capsule, and then transferring the capsule and the battery in the to a first transfer conveying line; S2: conveying the capsule and the battery in the capsule to a standing unit through the first transfer conveying line; S3: transporting the capsule on the first transfer conveying line and the battery in the capsule into a standing cavity of the standing unit, and electrically connecting an auxiliary energizing mechanism on the standing cavity with a positive electrode probe and a negative electrode probe of the capsule; and S4: connecting the auxiliary energizing mechanism on the standing cavity with a power supply to supply power to a heating plate of the capsule, and energizing the heating plate to heat the battery in the capsule.

TAB WELDING STRUCTURE AND BATTERY

Absstract of: US2025385396A1

A tab welding structure and a battery are provided, relating to the field of battery technology. The tab welding structure includes a wound body with an electrode plate, and a full tab. The full tab is electrically connected to the electrode plate and located at one end of the wound body. A current collector is welded to the full tab to form welding point groups. The welding point groups are arranged in a radial pattern around a center of the wound body. Each welding point group includes welding points arranged in a wave pattern along a radial direction of the wound body. This configuration enhances the uniformity of current conduction in the wound body and reduces the amount of current loss.

ISOLATION FILM AND SECONDARY BATTERY AND ELECTRIC APPARATUS RELATED THERETO

Absstract of: US2025385388A1

Embodiments of the present application provide an isolation film, a preparation method therefor, and a secondary battery and an electric apparatus related thereto. The isolation film comprises a first porous base film, a second porous base film, and a coating layer. The coating layer is arranged between the first porous base film and the second porous base film. The coating layer comprises first particles. The first particles comprise at least one of molybdenum disulfide, silicon oxide, a transition metal oxide, or conductive carbon particles.

SECONDARY BATTERY AND METHOD OF MANUFACTURING SECONDARY BATTERY

Absstract of: US2025385400A1

In the present method of manufacturing a secondary battery, a current collector is a first stack in which a plurality of metal plates are stacked, the current collector includes a first region and a second region, a positive electrode tab group is joined to the first region, a positive electrode current collection portion is joined to the second region, the method including: a preparation step of preparing the current collector having a first joining portion in which the metal plates are partially joined together; a first tab group connection step of joining the positive electrode tab group to the current collector; and an other conductive member connection step of joining the positive electrode current collection portion to the current collector. According to the present method of manufacturing the secondary battery, occurrence of damage to the tab group can be suppressed.

CURRENT COLLECTOR PREPARATION DEVICE, CURRENT COLLECTOR PREPARATION METHOD, AND BATTERY CELL PRODUCTION LINE

Absstract of: WO2025255929A1

A current collector preparation device (100), a current collector preparation method, and a battery cell production line (1000). The current collector preparation device (100) comprises an unwinding mechanism (10), a winding mechanism (20), and coating mechanisms (30); the unwinding mechanism (10) is configured to unwind a base film (200) of a current collector (300); the winding mechanism (20) is arranged downstream of the unwinding mechanism (10) and is configured to wind the prepared current collector (300); the coating mechanisms (30) are arranged between the unwinding mechanism (10) and the winding mechanism (20), and each coating mechanism (30) comprises a plurality of coating assemblies (301); and the plurality of coating assemblies (301) are arranged in a transporting direction of the base film (200) and are respectively configured to release different substances onto the base film (200) to form a plurality of film layers on the surface of the base film (200), and substance release areas of at least two coating assemblies (301) partially overlap.

DRYING SYSTEM AND BATTERY PRODUCTION APPARATUS

Absstract of: WO2025256052A1

The present application relates to a drying system and a battery production apparatus. The drying system comprises a turntable, a plurality of drying boxes and a first transfer member. The plurality of drying boxes are arranged at intervals in the rotation direction of the turntable, and are used for drying battery cells. The first transfer member is arranged on the turntable, and is at least used for driving the battery cells into and out of the drying boxes. Embodiments of the present utility model provide a drying system and a battery production apparatus, which can reduce the floor space of the drying system, thereby improving the overall space utilization rate of the system and the battery production efficiency.

BATTERY AND ELECTRICAL APPARATUS

Absstract of: WO2025256041A1

The present application is applicable to the technical field of batteries (100), and provides a battery (100) and an electrical apparatus. The battery (100) comprises an electrode assembly (10), a case assembly (30), and fire extinguishing structures (40); the electrode assembly (10) is arranged in the case assembly (30); the case assembly (30) is provided with a first weak structure (31), and at least one fire extinguishing structure (40) is arranged at the first weak structure (31); and/or the electrode assembly (10) is provided with a second weak structure (11), and at least one fire extinguishing structure (40) is arranged at the second weak structure (11). By providing the fire extinguishing structure (40) at the first weak structure (31), a cooling and fire extinguishing operation can be performed at the first weak structure (31). By providing the fire extinguishing structure (45) at the second weak structure (11), a cooling and fire extinguishing operation can be performed at the second weak structure (11). In this way, the thermal runaway reaction and thermal propagation of a battery cell (100a) can be improved, thereby improving the reliability of the battery (100).

BATTERY PACK AND VEHICLE INCLUDING SAME

Absstract of: WO2025258766A1

The present invention relates to a battery pack which comprises: a pack housing; a plurality of cell blocks accommodated in the pack housing and configured by stacking a plurality of battery cells; and a support members provided between adjacent cell blocks to support the adjacent cell blocks and including a plurality of assembly parts engaged with each other, wherein blocking parts are provided between the assembly parts to block transfer of heat or flame between the adjacent cell blocks.

BINDER-FREE SILICON-POLYMER HYDROGEL COMPOSITE ANODE FOR LI-ION BATTERIES WITH LIQUID AND SOLID ELECTROLYTES

Absstract of: WO2025257849A1

The present disclosure relates to a field of lithium-ion batteries Particularly, the present disclosure relates to a silicon polymer hydrogel composite material for electrode. The present disclosure also relates to a process of preparation of a silicon polymer hydrogel composite material using a sol-gel-polymerization. The present disclosure also provides a silicon polymer hydrogel composite anode electrode and its method of preparation. More particularly, the present disclosure provides a lithium-ion battery. A cycle life analysis of a liquid electrolyte system over 500 cycles at a rate of 0.1 Ag-1 was conducted, achieving a specific capacity of 534mAh g-1. Additionally, the specific capacity of a quasi-solid electrolyte system over 100 cycles at the same rate was investigated, which achieved a capacity of 717 mAh g-1.

BATTERY PACK CASE, AND BATTERY PACK AND VEHICLE COMPRISING SAME

Absstract of: WO2025258765A1

Disclosed are a battery pack case and a battery pack and vehicle comprising same, the battery pack case comprising: a base plate which forms one surface of the battery pack case and has a through-hole communicating the interior space of the battery pack case with the outside; and an outer plate which is disposed so as to be spaced apart from an outer surface of the base plate, shields the through-hole to prevent same from being exposed to the outside, and creates a separation space between the outer plate and the base plate.

BATTERY PACK CASE, BATTERY PACK, AND VEHICLE COMPRISING SAME

Absstract of: WO2025258768A1

Disclosed are a battery pack case, a battery pack, and a vehicle comprising same, the battery pack case comprising: a base plate which forms one surface of the battery pack case and has a through-hole communicating the interior space of the battery pack case with the outside; an outer plate which is disposed so as to be spaced apart from an outer surface of the base plate, shields the through-hole to prevent same from being exposed to the outside, and creates a separation space between the outer plate and the base plate; and a discharge flow path which is formed in the separation space and bent multiple times and has one end communicating with the through-hole and the other end communicating with the outside of the separation space.

CATHODE ACTIVE MATERIAL COMPOSITE, CATHODE FOR LITHIUM-ION SECONDARY BATTERY AND DRY MANUFACTURING PROCESS THEREOF

Absstract of: WO2025257853A1

The present invention provides a cathode active material composite for lithium-ion secondary battery. The cathode active material composite of the present invention comprises a composite of Lithium manganese iron phosphate and Nickel Manganese Cobalt with specific crystal morphology. The present invention also provides a cathode comprising the active cathode material composite and a dry manufacturing process for preparation of the cathode. The cathode of present invention has high electrode density and demonstrates excellent electrochemical performance.

SECONDARY BATTERY

Absstract of: US2025385410A1

A secondary battery includes a case including an accommodation part and having a width direction (X-axis direction) and a height direction (Y-axis direction) defined, an electrode assembly accommodated in the accommodation part, a first current collecting plate on the electrode assembly, an injection member on the first current collecting plate, and a cap assembly on the case, wherein the electrode assembly includes a first electrode, a second electrode, and a separator therebetween, the electrode assembly includes a hollow part, the first current collecting plate includes a first hole overlapping the hollow part, the injection member includes an inlet and an outlet, the injection member includes a second hole overlapping the first hole, the injection member includes a protrusion part in the first hole, the protrusion part spaced apart from the first current collecting plate, and a width of the protrusion part changes while extending from the inlet to the outlet.

SECONDARY BATTERY ELECTRODE WHERE TAPE IS ATTACHED AND ELECTRODE ASSEMBLY INCLUDING THE SAME

Absstract of: US2025385407A1

The secondary battery electrode includes a substrate including an uncoated portion including a first surface and a second surface, the second surface being opposite the first surface, and a coated portion on which a first active material layer and a second active material layer are coated, the second active material layer being on a surface of the substrate opposite the first active material layer. The secondary battery also includes an electrode tab coupled to the substrate, a first tape adhered to a portion of the first active material layer around the electrode tab and the uncoated portion, and a second tape opposite the first tape and adhered to a portion of the second active material layer around the uncoated portion. Further, a tensile strength of at least one of the first tape or the second tape is 230 N/mm2 or greater.

PROTECTIVE COVER, A BATTERY CELL ASSEMBLY, AN ENERGY STORAGE SYSTEM, AND A VEHICLE

Absstract of: US2025385351A1

A protective cover for protecting a battery cell top surface of a battery cell, comprising a main protective wall with an extension in a longitudinal direction and a width direction, and a top surface facing upwardly in the height direction and a bottom surface facing downwardly in the height direction, and at least one battery cell attachment portion which is arranged to attach the protective cover to the battery cell such that the bottom surface faces the battery cell top surface. The at least one battery cell attachment portion configured to provide a snap-fit connection to the battery cell.

BATTERY CELL, BATTERY, AND ELECTRIC DEVICE

Absstract of: US2025385403A1

A battery cell, a battery, and an electric device are provided. The battery cell has a battery housing, where a pole assembly is disposed on a first wall of the battery housing, the pole assembly includes a pole body, and the pole body includes: a bearing portion, the bearing portion being inserted through a mounting hole of the first wall; and a bending portion, the bending portion being connected to one end of the bearing portion in a central axis direction, bent relative to the bearing portion, and disposed on one side of the first wall, and a bending resistance strength of the bending portion being less than a bending resistance strength of the bearing portion. The battery includes the battery cell described above. The electric device includes the battery described above.

CYLINDRICAL BATTERY AND METHOD FOR PRODUCING CYLINDRICAL BATTERY

Absstract of: US2025385352A1

A cylindrical battery includes a battery element, an outer can having a bottomed cylindrical shape with an opening on one side, a sealing body that seals the opening of the outer can, and a welded portion in which the outer can and the sealing body are welded. The outer can houses the battery element, and the welded portion extends in a first direction along a boundary between the outer can and the sealing body. A value obtained by dividing a maximum welding depth from an outermost surface of the welded portion in the first direction by a maximum thickness of a thickness of the outer can and a thickness of the sealing body is 0.4 or more and 1.5 or less.

BATTERY AND ELECTRICAL DEVICE

Absstract of: WO2025256040A1

The present application applies to the technical field of batteries (100). Provided are a battery (100) and an electric device, which comprises the battery (100), the battery (100) comprising battery cells (10) and a fire extinguishing structure (30), wherein each battery cell (10) comprises a casing assembly (12), the casing assembly (12) being provided with a weakened structure (123); and the fire extinguishing structure (30) is arranged opposite the weakened structure (123). The casing assembly (12) comprises a first wall (1221) and a pressure-relief mechanism (123a) connected to the first wall (1221), wherein the weakened structure (123) includes the pressure-relief mechanism (123a); and/or the casing assembly (12) is provided with a weld seam (123b), wherein the weakened structure (123) includes the weld seam (123b). The fire extinguishing structure (30) being spaced apart from and opposite the weakened structure (123) enables the fire extinguishing structure (30) to reduce the temperature of a high-temperature and high-pressure gas generated during thermal runaway of the battery cells (10). In this way, thermal runaway of the entire battery (100) can be mitigated, thereby improving the reliability of the battery (100).

BATTERY CELL, BATTERY AND ELECTRIC DEVICE

Absstract of: WO2025255978A1

Disclosed in the present application are a battery cell, a battery and an electric device. The battery cell comprises an electrode assembly and a casing, wherein the electrode assembly is located in the casing, and the casing comprises a first side wall and a second side wall; and a first arc-shaped portion is connected between the first side wall and the second side wall, the first arc-shaped portion is arranged opposite an edge of the electrode assembly, and at least part of the first arc-shaped portion is provided with a first clearance groove for providing clearance for the corresponding edge of the electrode assembly.

BATTERY, ELECTRIC DEVICE, AND ENERGY STORAGE DEVICE

Absstract of: WO2025255940A1

A battery (100), an electric device, and an energy storage device. The battery (100) comprises: a case (10), which is provided with a frame (101) defining an accommodating space, wherein at least one battery cell (110) is placed in the accommodating space; and a mounting member (104), which is located outside the accommodating space and connected to the frame (101). The mounting member (104) comprises a first mounting plate (11) and a second mounting plate (12) connected to each other, wherein the first mounting plate (11) is located below the second mounting plate (12) in the direction of gravity, and the first mounting plate (11) comprises a first plate section (111) connected to a lower part of the frame (101), a second plate section (112) connected to a side surface of the frame (101) and a third plate section (113) connected to the second mounting plate (12), the first plate section (111), the second plate section (112) and the third plate section (113) being connected in sequence. The battery has a relatively high mounting strength, structural rigidity and structural strength; and the electric device and the energy storage device have a relatively high use reliability.

BATTERY PACK CASE, BATTERY PACK, AND VEHICLE COMPRISING SAME

Absstract of: WO2025258783A1

Disclosed are a battery pack case, a battery pack, and a vehicle comprising same, the battery pack case comprising: a base plate which forms one surface of the battery pack case and has a through-hole communicating the interior space of the battery pack case with the outside; an outer plate which is disposed so as to be spaced apart from an outer surface of the base plate, shields the through-hole to prevent same from being exposed to the outside, and creates a separation space between the outer plate and the base plate; and a venting valve which is provided on the outer plate to selectively discharge fluid in the separation space.

A SYSTEM FOR SECURING A UNIQUE IDENTIFICATION NUMBER OF A BATTERY AND METHOD THEREOF

Absstract of: WO2025257840A1

The present invention relates to a system (100, 200) and a method (300) for securing a unique identification number (UID) of a battery (102, 202). The system (100, 200) has a battery (102, 202) and a storage medium (104, 210). The battery (102, 202) has a unique identification number (UID) and the storage medium (104, 210) is configured to store the unique identification number (UID). The system (100, 200) further has a control unit (106, 204). The control unit (106, 204) is operably connected to the battery (102, 202) and the storage medium (104, 210). The control unit (106, 204) includes a cryptographic module (110, 208) and an authentication module (112, 206). The cryptographic module (110, 208) is configured to lock the unique identification number (UID) through a cryptographic key. The authentication module (112, 206) is configured for unlocking the unique identification number (UID).

ALL-SOLID-STATE SECONDARY BATTERY

Absstract of: WO2025258604A1

Provided is a high-capacity all-solid-state secondary battery.　This all-solid-state secondary battery is characterized by: including a positive electrode, a negative electrode, and a solid-state electrolyte layer disposed between the positive electrode and the negative electrode; and an intermediate layer, containing a fibrous resin and a solid-state electrolyte, being interposed between the negative electrode and the solid-state electrolyte layer.

POWER STORAGE DEVICE

Absstract of: WO2025258394A1

A power storage device (10) is provided with: at least one power storage cell (100); a bottom wall (235) that is disposed below the at least one power storage cell (100); and a structural member (300) that is provided on the bottom wall (235). A safety valve (SV) is provided on the lower surface (114a) of the power storage cell (100). The at least one power storage cell (100), the bottom wall (235), and the structural member (300) define a space (S) below the at least one power storage cell (100).

POWER STORAGE DEVICE

Absstract of: WO2025258393A1

A power storage device (10) is provided with: at least one power storage cell (100); a top wall (220) that is provided above the power storage cell; opposing walls (212, 240) that face the power storage cell in the width direction; and a support member (300) that supports the power storage cell. The opposing walls extend downward from the top wall (220). The support member (300) supports the lower surface (114a) of both ends of the power storage cell (100) in the width direction.

BATTERY UNIT

Absstract of: WO2025258193A1

A battery unit (11) comprises: battery sections (21); battery monitoring devices (30) that detect battery information and transmit the battery information by wireless communication; a battery control device (40) that receives battery information from the battery monitoring devices by wireless communication; and an electrically conductive housing (50) that houses the battery sections (21), the battery monitoring devices (30), and the battery control device (40). In the battery unit (11), the interior of the housing houses one or a plurality of the battery sections, and comprises radio wave intrusion suppression members (81) that close at least a portion of a gap between the battery sections and the housing and gaps (25) between the battery sections.

ELECTRODE PLATE, STACKED-TYPE CELL, AND POUCH BATTERY

Absstract of: US2025385401A1

An electrode plate body includes a coated region and a blank foil region located at one end corner of the electrode plate body. A notched region is provided at another end corner of the electrode plate body. A first boundary line is between the blank foil region and the coated region. An angle between a right-angled edge of the blank foil region in the short-side direction of the electrode plate body and the first boundary line ranges from 30° to 60°. A second boundary line is between a notched region and the coated region. An angle between the right-angled edge of the notched region in the short-side direction of the electrode plate body and the second boundary line ranges from 30° to 60°.

BATTERY MODULE

Absstract of: US2025385392A1

A battery module includes a battery stack including a plurality of battery cells, a holder member provided at one side of the battery stack, busbars coupled to the holder member and electrically connected to the battery stack, and an overlap region in which at least some of lead regions of the plurality of battery cells of the battery stack overlap one another is formed, in which the overlap region is attached to and in close contact with the busbar.

SEPARATOR SUBSTRATE FOR ELECTROCHEMICAL DEVICE AND SEPARATOR COMPRISING THE SAME

Absstract of: US2025385386A1

A separator substrate, a separator comprising the same, and an electrochemical device comprising the same are provided. The separator substrate comprises a crosslinked polyolefin resin and chromium (Cr), wherein the crosslinked polyolefin resin comprises a silicon-containing organic group grafted to a polyolefin chain, a gel fraction of the separator substrate is 3% to 80%, a standard deviation (Δd) of thickness measured in at least 100 random points is 0.5 μm or less, and a number of spots having a long side length of 50 μm or more per m2 is 10 or less.

BATTERY ASSEMBLY AND BATTERY PACK

Absstract of: US2025385376A1

The present battery assembly includes: a first binding bar provided to cover a side of each of a plurality of battery cells on which an electrode terminal is disposed; a second binding bar provided to cover a side of each of the battery cells opposite to the side on which the electrode terminal is disposed; and an electrode-terminal-side cushion provided at at least one corner portion of the battery cell located, on the side on which the electrode terminal is disposed, in a direction intersecting a direction in which the battery cells each including the first side surface on which the electrode terminal is disposed are stacked, so as to extend along the direction in which the battery cells are stacked, wherein the first binding bar and the second binding bar are fastened and fixed.

Battery Pack and Vehicle Comprising the Battery Pack

Absstract of: US2025385391A1

A battery pack according to an embodiment of the present disclosure includes a plurality of battery cells, a filler member filled in a space between the plurality of battery cells, and a busbar assembly electrically connected to the plurality of battery cells, and having a filler member injection hole for injecting the filler member.

BATTERY CELL STACK ASSEMBLY A BATTERY PACK A BATTERY MODULE A VEHICLE AND A METHOD

Absstract of: US2025385358A1

The disclosure relates to a battery cell stack assembly for a battery module or a battery pack that includes a plurality of prismatic battery cells, stacked next to each other in at least three longitudinally extending and parallel battery cell rows, and a bottom support plate, wherein the at least three battery cell rows are supported on a support surface of the bottom support plate which faces upwardly in the height direction. The disclosure also relates to a battery pack, a battery module, a vehicle, and a method.

POSITIVE ELECTRODE ACTIVE MATERIAL, POSITIVE ELECTRODE, AND LITHIUM SECONDARY BATTERY

Absstract of: WO2025259023A1

The present invention relates to a positive electrode active material, a positive electrode comprising same, and a lithium secondary battery, the positive electrode active material enabling the simultaneous solving of existing secondary particle and single particle problems, and comprising particles such as conventional single particles as primary particles, and comprising secondary particles formed by aggregating a plurality of the primary particles, wherein the plurality of primary particles have an average particle size of 1.0 to 3.0 μm measured from a SEM image, the particle size of the primary particles being the particle size based on the major axis of the primary particles, and the plurality of primary particles include disk-type primary particles defined in the present specification, 60 mol% or more of nickel is contained in the total of transition metals, and formula 1 disclosed in the present specification is satisfied, thereby enabling the enhancing of capacity characteristics, high-temperature life characteristics, and rate characteristics of a lithium secondary battery.

ELECTRODE ASSEMBLY STRUCTURE PREVENTING SHORT CIRCUIT AND METHOD FOR PRODUCING SAME

Absstract of: WO2025258870A1

The present invention provides: an electrode assembly structure preventing the risk of short circuits due to the width-wise end exposure of an electrode by having a separator covering the side surface of an electrode laminate, the electrode assembly being produced using a zigzag stacking method; and a method for producing the electrode assembly.

BATTERY STORAGE DEVICE

Absstract of: WO2025258731A1

This battery storage device comprises: a housing provided with a plurality of partitioning units, which partition the interior of the housing into a plurality of partitioned spaces, and a plurality of opening/closing units, which are provided on different surfaces of the housing; a plurality of mounting units which are formed as extendable shelf structures and respectively provided in the plurality of partitioned spaces, and on which a plurality of batteries are mounted; a plurality of rails which are respectively provided on both side surfaces of the plurality of mounting units and guide the mounting units so as to be extendable in the front-rear direction relative to the housing; chain-type moving units which are respectively provided above the side surfaces of the plurality of mounting units and have chain shapes, and which are provided so that the mounting units return when extended to the outside of the housing; a plurality of fire extinguishing units having bar-shaped bodies, which release a fire extinguishing agent upon detecting a fire and are provided at the upper end of the inside of the partitioned spaces, and arranged parallel to the mounting surfaces of the mounting units to maximize the area of the bodies facing the batteries; and a water injection unit provided on the outside of the housing and formed as a valve to inject water into the housing according to the open/closed state.

ELECTRODE ASSEMBLY STRUCTURE PREVENTING SHORT CIRCUIT AND METHOD FOR PRODUCING SAME

Absstract of: WO2025258871A1

The present invention provides: an electrode assembly structure preventing the risk of short circuits due to the width-wise end exposure of an electrode by having a separator covering the side surface of an electrode laminate, the electrode assembly being produced using a zigzag stacking method; and a method for producing the electrode assembly.

BATTERY AND ELECTRONIC DEVICE

Absstract of: WO2025256091A1

A battery and an electronic device. The battery comprises a cell and an FPC. No protection circuit is provided on the cell or the FPC. A first portion of the FPC is stacked on a top seal along the width direction of the cell, two second portions of the FPC are respectively formed by extending from two ends of the first portion, and second connection portions are respectively provided at extension ends of the second portions. One of the second connection portions is connected to a positive electrode trace within the FPC, and the positive electrode trace extends from the corresponding second connection portion and second portion to a position opposite to a positive electrode tab. The other one of the second connection portions is connected to a negative electrode trace within the FPC, and the negative electrode trace extends from the corresponding second connection portion and second portion to a position opposite to a negative electrode tab. At least one of the positive electrode tab and the negative electrode tab is provided in a quantity of at least two. In such a configuration, the positive electrode trace and the negative electrode trace within the FPC are both arranged in a unipolar manner, thereby avoiding the possibility of safety risks such as fire caused by continuous short circuits and reducing the link impedance of the FPC.

BATTERY PROTECTION METHOD, AND STORAGE MEDIUM AND VEHICLE

Absstract of: WO2025256088A1

Disclosed in the present application are a battery protection method, and a storage medium and a vehicle. The battery protection method comprises: acquiring the voltage of a battery; on the basis of the voltage of the battery and a set undervoltage threshold, determining whether the battery is in a pre-undervoltage state; if the battery is in the pre-undervoltage state, determining a pre-undervoltage level on the basis of the voltage of the battery and a plurality of preset undervoltage thresholds, and correspondingly limiting a discharge power of the battery; on the basis of the voltage of the battery and the change condition of the voltage of the battery within a preset duration, determining the state of the battery; and if the state of the battery is a preset pre-undervoltage state, maintaining the limitation on the discharge power of the battery.

BATTERY CELL, BATTERY DEVICE, ENERGY STORAGE DEVICE, AND ELECTRIC DEVICE

Absstract of: WO2025256174A1

A battery cell, a battery device, an energy storage device, and an electric device. The battery comprises a casing, an electrode assembly, and an overcharge protection mechanism. The casing comprises a first wall, the electrode assembly is arranged in the casing, and the overcharge protection mechanism is arranged on the first wall. The electrode assembly comprises a gas-generating agent, and the gas-generating agent comprises at least one of carbonate, oxalate or chloride. The battery cell can effectively improve the reliability of the battery device.

END COVER ASSEMBLY, BATTERY CELL, BATTERY, AND ELECTRICAL DEVICE

Absstract of: WO2025256051A1

Embodiments of the present disclosure provide an end cover assembly, a battery cell, a battery, and an electrical device. The battery cell comprises a casing and an end cover assembly; the casing is provided with an accommodating cavity, and the side of the accommodating cavity in a first direction is open; the end cover assembly comprises a cover plate kit and a top support; the cover plate kit covers the open position of the accommodating cavity, the top support is arranged in the accommodating cavity; the cover plate kit is provided with an anti-explosion valve trigger area and a flow guide channel; at least part of the top support and the cover plate kit are spaced in the first direction to form a convergence space; the anti-explosion valve trigger area is communicated with the convergence space; the top support is provided with through exhaust holes, and the exhaust holes enable the convergence space to be communicated with the accommodating cavity; and air outlets of the flow guide channel are communicated with the convergence space, and air inlets of the flow guide channel are located in the accommodating cavity and spaced apart from the inner wall of the accommodating cavity.

NEGATIVE ELECTRODE AND SECONDARY BATTERY INCLUDING THE NEGATIVE ELECTRODE

Absstract of: US2025385264A1

A negative electrode including a negative electrode active material layer, wherein the negative electrode active material layer includes a negative electrode active material and a binder, wherein the binder includes a) an acryl-containing polymer including a monomer mixture containing a (meth)acrylamide group-containing monomer, an unsaturated carboxylic acid-containing monomer, and a monomer having a solubility in water of 100 g/L or less; and b) cellulose nanofibers, and a secondary battery.

AUTOMATED FOLDING CALENDER FOR ELECTRODE MANUFACTURING

Absstract of: US2025385241A1

A method for manufacturing an electrode includes feeding an electrode mixture to a first conveyor belt. The electrode mixture includes electrode active materials, conductive carbons and polymeric binders. The first conveyor belt moves the electrode mixture film along a first belt-moving direction. The method further includes transferring the electrode mixture film from the first conveyor belt to a second conveyor belt. The second conveyor belt moves the electrode mixture film along a second longitudinal direction. The first belt-moving direction is oblique angled relative to the second longitudinal direction. The side rollers on the second conveyor fold the electrode mixture film at a certain angle with the support of a pair of guide rollers. The method includes hot pressing the electrode mixture film using at least one hot roller to fiberize the PTFE binder along the second belt-moving direction.

CONDUCTIVE-MATERIAL-DISPERSED SOLUTION, ANODE SLURRY COMPOSITION, AND ANODE FOR SECONDARY BATTERY

Absstract of: US2025385265A1

A conductive-material-dispersed solution, according to one implementation, comprises a conductive material, a dispersant and a dispersion medium, wherein the conductive material comprises single-walled carbon nanotubes (SWCNTs) and multi-walled carbon nanotubes (MWCNTs), and the solid content of the conductive-material-dispersed solution is 1.5 wt % or greater. According to the one implementation, the provided conductive-material-dispersed solution has the conductive material pre-dispersed therein to an excellent level such that, when added to an anode slurry composition, dispersibility and the like of the conductive material are effectively improved, and inhibits aggregation between constituent elements in the anode slurry such that high solid content characteristics and the like in a slurry can be ensured.

POSITIVE ELECTRODE PLATE, BATTERY AND ELECTRICAL APPARATUS

Absstract of: US2025385252A1

A positive electrode plate includes a current collector, a conductive coating, a first active material layer and a second active material layer, where the conductive coating is formed on a surface of the current collector, the first active material layer is formed on a surface of the conductive coating, and the second active material layer is formed on a surface of the first active material layer; the first active material layer includes a first active material; the second active material layer includes a second active material; the first active material does not catch fire in a nail penetration test; and the second active material has a gram capacity greater than or equal to 165 mAh/g.

ALL-SOLID-STATE BATTERY

Absstract of: US2025385263A1

The present invention relates to an all solid-state battery comprising: a negative electrode; an electrolyte layer; and a positive electrode including a positive electrode layer and a current collector supporting the positive electrode layer, wherein the positive layer includes a first area adjacent to the electrolyte layer and a second area adjacent to the positive electrode current collector, the first area includes first solid-state electrolyte particles, the second area includes second solid-state electrolyte particles, and an average particle size of the first solid-state electrolyte particles is greater than that of the second solid-state electrolyte particles.

METHODS AND SYSTEMS FOR UPGRADING BLACK MASS FROM LITHIUM-ION BATTERIES

Absstract of: WO2025255657A1

There are provided methods and systems for non-wet lithium-ion battery recycling using triboelectrification of black mass or battery scrap material and electrostatic separation based on charge polarity and/or charge magnitude. Methods and systems of the disclosure allow separation, recovery and/or upgrading of battery electrode active components from black mass or battery scrap materials, using an entirely dry process without solvents. Battery electrode active components such as graphite, metal oxides, and metal oxide components may be separated, recovered and/or upgraded using methods and systems of the disclosure. In some embodiments, methods include pneumatic conveying for triboelectrification of black mass or battery scrap material followed by separation in a free-fall electrostatic charged-particle separator.

AQUEOUS BINDER FOR PREPARING HARD CARBON ANODES OF SODIUM-ION BATTERIES AND A PREPARATION METHOD

Absstract of: US2025382393A1

An aqueous binder and its use in hard carbon anodes of sodium-ion batteries are provided. The aqueous binder includes a first component and a second component, the first component is one or more of sodium-ion-containing styrene derivative polymers or sodium-ion-containing pyran derivative polymers, and the second component is a conductive polymer containing ether bonds. By controlling addition amounts of the first component and the second component, an aqueous binder containing a large number of polar hydrophilic groups is obtained, which is suitable for hard carbon anodes of sodium-ion batteries. The aqueous binder features simple and convenient preparation, economical raw materials, and environmental friendliness with deionized water as the solvent. The sodium-ion battery prepared with the hard carbon anode using this aqueous binder has high initial Coulombic efficiency and good cycling stability and rate performance, thus showing promising prospects for commercial application.

POSITIVE-ELECTRODE ACTIVE MATERIAL FOR SECONDARY BATTERIES, METHOD FOR MANUFACTURING SAME, POSITIVE ELECTRODE FOR SECONDARY BATTERIES USING SAME, AND SECONDARY BATTERY

Absstract of: US2025382197A1

Provided is a method for producing a cathode active material for a secondary battery which enables configuring a battery with improved battery resistance. The method includes providing a lithium transition metal composite powder in which a ratio of the number of moles of nickel atoms to the total number of moles of metal atoms other than lithium is 0.5 or more and less than 1 and a ratio of the number of moles of cobalt atoms to the total number of moles of metal atoms other than lithium is 0 or more and less than 0.5, the lithium transition metal composite powder having a layered structure; contacting the lithium transition metal composite powder with a cobalt raw material to obtain a cobalt-adhered composite oxide; subjecting the cobalt-adhered composite oxide to a first heat treatment performed at a temperature higher than 600° C. and lower than 800° C. to obtain a first heat-treated product; contacting the first heat-treated product with a niobium raw material to obtain a niobium-adhered composite oxide; and subjecting the niobium-adhered composite oxide to a second heat treatment performed at a temperature higher than 300° C. and lower than 500° C. to obtain a second heat-treated product.

OXIDE, ELECTROLYTE COMPOSITION, AND POWER STORAGE DEVICE

Absstract of: US2025382195A1

An oxide which has a garnet-type crystal structure including Li, La, and Zr, in which the crystal structure includes a first tetragonal phase and a second tetragonal phase, a lattice constant of the first tetragonal phase and a lattice constant of the second tetragonal phase are different from each other, a ratio (a/c) of a and c of the lattice constant of the first tetragonal phase falls within a range of 1.003 to 1.03, and a ratio (a/c) of a and c of the lattice constant of the second tetragonal phase falls within a range of 1.001 to 1.01.

SHEET SHAPED FERRIC PHOSPHATE WITH A HIGH IRON-TO-PHOSPHORUS RATIO AND METHOD FOR PREPARING THE SAME, LITHIUM IRON PHOSPHATE CATHODE MATERIAL, CATHODE PLATE AND SECONDARY BATTERY

Absstract of: US2025382177A1

In one aspect, a sheet shaped ferric phosphate with a high iron-to-phosphorus ratio has a sheet shaped structure with an iron-to-phosphorus (Fe/P) ratio greater than 0.99, a ratio of length to width to thickness of the sheet shaped structure is (105 to 130):(90 to 100):(10 to 12), 3.5 m2/g≤a specific surface area of the sheet shaped structure≤6.5 m2/g, and a particle size of the sheet shaped structure<35 μm.

A Negative Electrode Active Material and a Preparation Method thereof

Absstract of: US2025382184A1

The application provides a negative electrode active material and a preparation method thereof, wherein the negative electrode active material comprises: porous core, comprising a base material and a boron-containing substance dispersed in the base material, wherein the base material comprises silicon and MSiO3, where M represents metal; pores of the porous core are filled with a silicon compound, and the silicon compound does not fully fill the pore. The negative electrode active material and the preparation method thereof have good material stability while ensuring high gram capacity and initial charge-discharge efficiency, and the lithium-ion battery made of it as a negative electrode has excellent fast charge and cycle characteristics, and may also reduce the expansion of the battery during the cycle.

BIAXIALLY STRETCHED POLYAMIDE FILM AND PACKAGING MATERIAL

Absstract of: US2025381719A1

An object of the present invention is to provide a biaxially stretched polyamide film which is superior in bending pinhole resistance and abrasion pinhole resistance, and can inhibit generation of foreign matter during film formation. A biaxially stretched polyamide film of the present invention includes at least two layers of A layer and B layer each formed of a resin composition including polyamide 6, wherein the A layer contains a flexing agent and the B layer is substantially free of any flexing agent, and the biaxially stretched polyamide film exhibits a loss elastic modulus E″ of 1.1×108 Pa or more at 1° C. in dynamic viscoelasticity measurement under conditions including a tensile mode, a distance between chucks of 20 mm, a frequency of 15 Hz, and a rate of raising temperature of 5° C./min using a viscoelasticity analyzer.

CHARGING SYSTEM AND CHARGING METHOD

Absstract of: US2025381878A1

A charging system includes: an information input unit that acquires device-to-be-charged information that is information on devices-to-be-charged connected to charging ports; a unit-allocating unit that allocates a power conversion unit to each charging port corresponding to each device-to-be-charged such that the power conversion unit is allocated in high priority to the device-to-be-charged with a high priority level based on the devices-to-be-charged information; and a switching control unit that controls a switch unit, based on a result of the allocation by the unit-allocating unit.

TRANSPORT APPARATUS, BATTERY TEST SYSTEM, AND BATTERY PRODUCTION SYSTEM

Absstract of: US2025382165A1

A transport apparatus comprises: a vehicle body; and a handling module which is provided on the vehicle body and comprises a base, an insertion arm extendably/retractably provided on the base, and a limiting member, the insertion arm having, in its own extension/retraction direction, a connection section and an insertion and pickup section which are opposite to each other, the connection section being extendably/retractably connected to the base, the insertion and pickup section being located at the front end of the extension direction of the connection section, and the limiting member being provided on the surface of the insertion arm facing away from the base, wherein the limiting member is located between the connection section and the insertion and pickup section, and a bearing space for placing a material is defined between the limiting member and the insertion and pickup section.

ANODES FOR LITHIUM-BASED ENERGY STORAGE DEVICES

Absstract of: US2025385246A1

An anode for an energy storage device includes an electrically conductive layer and a surface layer disposed over the electrically conductive layer. The current collector surface may be characterized by a plurality of grooves. A lithium storage layer overlays the surface layer. The lithium storage layer is characterized by a first average thickness and may include at least 40 atomic % silicon, germanium, or a combination thereof. In at least one lateral dimension, the grooves may be spaced apart by an average spacing distance that is 0.4 to 50 times the first average thickness.

GRAPHENE PREPARATION METHOD USING LASER, AND SECONDARY BATTERY COMPRISING GRAPHENE COMPOSITE

Absstract of: US2025385260A1

A method for fabricating a graphene according to an embodiment of the present invention includes forming a precursor layer including a polymer on a metal pattern layer having a grid shape, and irradiating laser to the precursor layer to form a graphene layer. According to the method, quality and uniformity of laser-induced graphene may be increased without an additional complicated process.

COMPOSITE POWDER, POSITIVE ELECTRODE MIXTURE AND ALKALI METAL-ION BATTERY

Absstract of: US2025385261A1

The present disclosure provides a composite powder including a carbon material having pores, a first heat-impregnating material and a second heat-impregnating material.

BATTERY MODULE

Absstract of: US2025385333A1

Disclosed is a battery module including a battery stack including a plurality of battery cells stacked. The battery module further includes a pad member, a holder member provided at a side of the battery stack, a busbar assembled to the holder member and electrically connected to the battery stack, and a first conductive sheet provided to face the busbar and containing a thermally conductive material. The plurality of battery cells each have a lead region tightly attached to the busbar. The first conductive sheet is provided to face the busbar with the lead region interposed therebetween, and the first conductive sheet is tightly attached to the lead region or the busbar.

Apparatus for Diagnosing State of Battery Cell and Method Thereof

Absstract of: US2025383241A1

Disclosed are an apparatus and method for a state of a battery cell. The apparatus diagnoses the state of the battery cell with high accuracy by dividing the battery cell into a plurality of regions, constructing a Randle circuit for each region, determining a current value and a resistance value of each region based on the Randle circuit, determining the amount of internal heat generation of each region by using the current value and the resistance value, determining an amount of heat transfer and an amount of heat convection of each region based on an outside temperature value and a previous temperature value of each region, estimating a temperature of each region based on the amount of internal heat generation, the amount of heat transfer, and the amount of heat convection of each region, and diagnosing the state of the battery cell by using the temperature of each region.

ELECTRONIC DEVICE FOR CONTROLLING PERFORMANCE OF PROCESSOR ON BASIS OF CURRENT DISCHARGED FROM BATTERY, AND METHOD PERFORMED THEREBY

Absstract of: WO2025258849A1

An electronic device according to an embodiment may comprise: a battery; a processor comprising at least one temperature sensor; a charger having a first pin electrically connected to a first temperature sensor among the at least one temperature sensor; and a memory for storing instructions, wherein the instructions cause the electronic device to: when a first load is identified, request, through the charger, the battery to provide a first current corresponding to the first load; when a warning signal is received from the charger since the magnitude of the first current discharged from the battery is higher than a threshold value, control the performance of the processor at a first level in order to adjust the magnitude of the first current to be equal to or lower than the threshold value; identify a first temperature corresponding to the magnitude of the first current on the basis of first information regarding the first current provided from the first pin of the charger to the temperature sensor; and control the performance of the processor at a second level higher than the first level on the basis of the first temperature.

CYLINDRICAL BATTERY CELL CAPABLE OF BOTTOM COOLING

Absstract of: WO2025258995A1

The present invention relates to a cylindrical battery cell having a structure configured for efficient cooling using a cap provided at the lower portion of a can. The battery cell comprises: a can having a side wall member extending in an axial direction, an opening provided at a first end of the side wall member in the axial direction, and a bottom member connected to a second end of the side wall member in the axial direction; an electrode assembly including a first electrode and a second electrode and accommodated in the can; a current collecting plate including a central portion and a peripheral portion disposed around the central portion and electrically connected to the electrode assembly; and a cap configured to block the opening of the can and including a body portion and an edge portion, wherein the bottom member includes at least one notched vent portion, the central portion is electrically connected to the second electrode of the electrode assembly, the peripheral portion is in contact with the first end of the sidewall member and the edge portion of the cap, and the first end of the sidewall member, the edge portion of the cap, and the peripheral portion are electrically connected to each other.

CYLINDRICAL BATTERY CELL

Absstract of: WO2025258848A1

Provided is a cylindrical battery cell having a simple structure, a simple assembly process, and high energy density. An electrode assembly is accommodated in an accommodation space of a can of the battery cell. One electrode of the electrode assembly is bonded to an end wall provided at a lower end portion of the can, and the other electrode of the electrode assembly is bonded to a cap covering an opening provided at an upper end portion of the can. The bonding is performed by irradiating a laser to the end wall and an outer surface of the cap to penetrate and weld the end wall and the outer surface of the cap. A first current collecting plate including a radially extending portion and an axially extending portion is interposed between the cap and the electrode assembly. The radially extending portion is bonded to a first electrode of the electrode assembly, and an upper end portion of the axially extending portion is bonded to a bottom surface of the cap.

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

Absstract of: WO2025258820A1

The present invention relates to a negative electrode for an all-solid-state battery and an all-solid-state battery comprising same, the negative electrode comprising: a negative electrode current collector; and a negative electrode coating layer on the negative electrode current collector, wherein the negative electrode coating layer comprises an inorganic filler, and the inorganic filler comprises a lithium metal oxyhalide represented by chemical formula 1 below (chemical formula 1 is as described in the specification).

ELECTRIFIED VEHICLE AND BATTERY CONTROL METHOD THEREOF

Absstract of: US2025381883A1

Proposed are an electrified vehicle in which a real state of charge (SOC) of a battery is converted into a display SOC based on conditions such as a change in temperature of the battery, whether the battery is charged by an external power source, and a battery control method of the electrified vehicle. Particularly, a lower limit reference point, an upper limit reference point, and an inflection point are determined, a corresponding relationship between a real SOC and a display SOC is determined based on the lower limit reference point, the upper limit reference point, and the inflection point, and the real SOC is capable of being converted into the display SOC based on the corresponding relationship.

METHOD FOR CONTROLLING THE SOC OPERATING WINDOW OF A BATTERY PACK

Absstract of: US2025381882A1

A computer system is disclosed. The computer system comprises processing circuitry configured to: determine operating windows of a battery pack of an electric vehicle defined by its state-of-charge (SOC) according to default predetermined SOC limits, extended predetermined SOC limits, and limited predetermined SOC limits. The processing circuitry is further configured to determine predictive energy or power utilization of the battery pack for a predetermined route. The processing circuitry is further configured to determine a health condition of the battery pack. The processing circuitry is further configured to in response to the determined health condition of the battery pack and the determined predictive energy or power utilization of the battery pack for the predetermined route, set a fixed operating window of the battery pack according to either the limited predetermined SOC limits, the default predetermined SOC limits, or the extended predetermined SOC limits.

APPARATUS FOR CONTROLLING TEMPERATURE RISE OF VEHICLE BATTERY AND METHOD THEREOF

Absstract of: US2025381886A1

Disclosed are an apparatus and associated method for controlling a temperature rise of a vehicle battery. The apparatus determines whether to increase the temperature of the battery provided in the vehicle, determines the maximum power to be supplied to a motor based on a battery power map, supplies the maximum power to the motor while the motor is separated from a drive axle, and transfers heat from motor coolant whose temperature has risen to battery coolant, thereby efficiently increasing the temperature of the battery without providing a separate heater.

ALL-SOLID-STATE RECHARGEABLE BATTERY STRUCTURE

Absstract of: US2025381431A1

The present invention relates to an all-solid-state rechargeable battery structure, including two or more unit cells including a positive electrode, a negative electrode, and a solid electrolyte layer between the positive electrode and the negative electrode, and elastic sheets located between and at the outermost end of the unit cells, wherein at least one of the elastic sheets includes an extinguishing capsule.

BATTERY SELF-HEATING SYSTEM AND CONTROL METHOD THEREFOR, AND ELECTRIC VEHICLE

Absstract of: US2025381887A1

A control method for a battery self-heating system, the battery self-heating system includes a three-phase motor, a battery pack, a three-phase inverter, and a switch circuit, and the method includes: acquiring battery pack temperature information; according to the battery pack temperature information, when determining that the battery pack requires self-heating, obtaining voltage information between a first end and a second end of the switch circuit; according to the voltage information between the first end and the second end of the switch circuit, controlling the switch circuit for self-heating of the battery pack; according to the battery pack temperature information when determining that the battery pack does not require self-heating, obtaining current information between the first end and the second end of the switch circuit; and according to the current information between the first end and the second end of the switch circuit, controlling the switch circuit to stop self-heating.

HIGH-VOLTAGE SAMPLING CIRCUIT, HIGH-VOLTAGE SAMPLING METHOD, AND BATTERY MANAGEMENT SYSTEM

Absstract of: US2025383405A1

A high-voltage sampling circuit includes a high-voltage MOS transistor and a battery sampling device. An output terminal of the battery sampling device is connected to a gate of the high-voltage MOS transistor and is configured to output a high or low level; an analog-to-digital conversion terminal thereof is connected to a source of the high-voltage MOS transistor and is configured to collect a voltage at the source of the high-voltage MOS transistor. A drain of the high-voltage MOS transistor is connected to the positive electrode of the battery pack through a first voltage-dividing resistor, and the source thereof is connected to the negative electrode of the battery pack through a second voltage-dividing resistor. The battery sampling device is configured to, when outputting a high level to the high-voltage MOS transistor, collect the voltage passing through the MOS transistor and convert the voltage to obtain a supply voltage of the battery pack.

DIAGNOSIS DEVICE FOR ON-VEHICLE SECONDARY BATTERY

Absstract of: US2025383409A1

A diagnosis device for an on-vehicle secondary battery includes a storage element that stores a database in which the model of a vehicle and nominal battery capacity are associated with the model of the secondary battery, and correlation data indicative of a correlation between voltage, current, and temperature values for each model of the secondary battery, and the degradation state of the secondary battery. An acquisition processing element refers to the database to acquire the model of the secondary battery based on the model of the vehicle and a value of the nominal battery capacity of the secondary battery, and acquires voltage, current, and temperature values while the secondary battery is charging or discharging. A determination processing element determines the degradation state of the secondary battery using the correlation data corresponding to the model of the secondary battery based on the voltage, current, and temperature values of the secondary battery.

BATTERY DEFECT DIAGNOSIS METHOD AND SERVER FOR PROVIDING SAME METHOD

Absstract of: US2025383408A1

The present invention provides a server for diagnosing a defect in a battery, the server including a server communication unit configured to receive battery data including at least one of a battery voltage, a battery current, and a battery temperature, which is a temperature of the battery, from a battery management system (BMS); a server storage unit configured to store a plurality of internal resistance values of the battery calculated based on the battery data at each diagnosis time point for diagnosing the defect in the battery; and a server control unit configured to extract a plurality of previous diagnosis time points corresponding to a predetermined number of samples based on a diagnosis time point, calculate a moving average, compare an internal resistance value with an upper band threshold, and a lower band threshold, and diagnose the defect in the battery.

RELAY FAILURE DIAGNOSING METHOD AND ELECTRICITY STORAGE DEVICE SYSTEM

Absstract of: US2025383402A1

A relay failure diagnosing method is a relay failure diagnosing method for an electricity storage device system that includes multiple electricity storage device packs. The relay failure diagnosing method is executed by a controller. The relay failure diagnosing method includes diagnosis processing and change processing. In the diagnosis processing, a failure of a relay is diagnosed for one or some of the multiple electricity storage device packs at startup of the electricity storage device system. In the change processing, an electricity storage device pack that is to be a target of failure diagnosis is changed.

POSITIVE ELECTRODE ADDITIVE FOR SECONDARY BATTERY, POSITIVE ELECTRODE SLURRY COMPRISING SAME, AND LITHIUM SECONDARY BATTERY COMPRISING SAME

Absstract of: WO2025258734A1

The present invention relates to a positive electrode additive for a secondary battery, a positive electrode slurry comprising same, and a lithium secondary battery comprising same, wherein the positive electrode additive may include a compound represented by chemical formula 1. The details of chemical formula 1 are as described in the specification.

SEPARATOR STRUCTURE, LITHIUM METAL BATTERY INCLUDING SAME, AND METHOD FOR MANUFACTURING THE SEPARATOR STRUCTURE

Absstract of: WO2025258738A1

The present invention relates to a separator structure for a lithium metal battery. More specifically, the separator comprises: a separator; a polymer film in contact with one surface of the separator; and a ceramic coating layer in contact with the other surface of the separator. The polymer film includes a lithium salt and a polymer, and the ratio of the thickness of the polymer film to the thickness of the separator is 1.5 to 3.

SEPARATOR FOR LITHIUM METAL BATTERY AND LITHIUM METAL BATTERY COMPRISING SAME

Absstract of: WO2025259024A1

Disclosed is a separator for improving the performance and stability of a lithium metal battery. One aspect of the present invention provides a separator for a lithium metal battery, the separator including a porous substrate and a coating layer on at least one surface of the porous substrate, wherein the coating layer includes a metal that does not form an alloy with lithium.

COATING APPARATUS

Absstract of: WO2025258914A1

The present invention provides a coating apparatus comprising a coating die. The coating die includes a first die lip having a first discharge port for discharging a first coating solution and a second die lip having a second discharge port for discharging a second coating solution, wherein the first die lip includes a first guide lip and a second guide lip which are spaced apart from each other with the first discharge port therebetween, and an end of the first guide lip is spaced apart from an end of the second die lip in a first direction that is the discharge direction of the first coating solution.

BATTERY CELL AND MANUFACTURING METHOD THEREOF

Absstract of: WO2025258925A1

Disclosed are a battery cell and a method for manufacturing a battery cell. The battery cell of the present invention may comprise: a restriction tab part provided in the circumferential direction on the inner circumferential surface of a rivet hole of a can housing; a gasket fitted in contact with the inner circumferential surface of the rivet hole; and a rivet terminal part having a screw thread formed on the outer circumferential surface thereof, wherein the screw thread is inserted into the rivet hole with the gasket interposed therebetween.

FORCED COOLING DEVICE OF POWER STORAGE MODULE

Absstract of: US2025381429A1

In a forced cooling device of a power storage module, liquid carbon dioxide is mainly utilized to function as a flame retardant, combustion can also be reduced by replacing oxygen, a burning surface can also be cooled to avoid further damages, and a gas detection device can quickly detect abnormal conditions of a battery cabinet and a battery module, and perform fastest cooling, and flame retarding and extinguishing. After fire has been extinguished, a battery cell is in a stabler state due to the low temperature, and flashover or high-temperature risks can be eliminated.

INK COMPOSITION FOR LIGHT-SINTERING, OXIDE-BASED SOLID ELECTROLYTE SHEET AND ALL-SOLID LITHIUM SECONDARY BATTERY

Absstract of: US2025382480A1

The ink composition for light-sintering according to one embodiment may be prepared by including a binder that has excellent solubility and thus does not cause agglomeration during slurry preparation. By containing the ink composition for light-sintering, the oxide-based thin film sheet according to one embodiment may be formed, through light-sintering, in such a way that the particles thereof exhibit an appropriate shape, density, connection pattern, and the like, and thus an oxide-based solid electrolyte sheet having excellent durability and ionic conductivity can be prepared without being delaminated from a substrate or such issues. The oxide-based solid electrolyte sheet according to one embodiment is sintered rapidly through light-sintering and is thus prepared in a short period of time without loss of materials, such as lithium, or destruction of a substrate, and can be made thinner and larger without additional processing steps.

Base Stations Including Integrated Systems For Servicing UAVs

Absstract of: US2025382077A1

A base station for an unmanned aerial vehicle (UAV) that includes a thermoelectric conditioner (TEC); a first air circuit that is thermally connected to the TEC and which is configured to regulate temperature of the TEC; and a second air circuit that is thermally connected to the TEC such that the TEC is located between the first air circuit and the second air circuit. The first air circuit is open such that the first air circuit receives and circulates ambient air, and the second air circuit is closed such that the second air circuit is devoid of direct communication with the ambient and circulates thermally conditioned air.

ULTRA-HIGH-SPEED DUAL CUTTING SYSTEM AND SECONDARY BATTERY ULTRA-HIGH-SPEED DUAL CUTTING

Absstract of: US2025381592A1

An object of the present disclosure is to provide a system for cutting an electrode 10 (negative/positive) delivered in reel form at a constant pitch during a notching process of a secondary battery manufacturing process, and a configuration of the present disclosure includes an electrode supply unit 120 that supplies an electrode 10 of a secondary battery, an electrode feeder 130 that feeds the electrode 10 supplied from the electrode supply unit 120 for cutting, a primary cutting unit 140 that primarily cuts the electrode 10 supplied by the electrode feeder 130, and a secondary cutting unit 150 that secondarily cuts the electrode 10 supplied from the primary cutting unit 140.An effect of the present disclosure is that equipment that cuts the electrode 10 supplied in reel form at an ultra-high speed with a constant pitch suited to product specifications, performs external inspection, and loads acceptable and defective products into magazines enables production at more than twice the throughput of conventionally used equipment.

SULFIDE-BASED SOLID ELECTROLYTE AND METHOD FOR PREPARING SAME

Absstract of: US2025385305A1

Provided is a method for preparing a sulfide-based solid electrolyte. The method for preparing a sulfide-based solid electrolyte may comprise the steps of: preparing a solid electrolyte including sulfide; and providing a precursor and a reactant containing oxygen on the solid electrolyte to form a protective film on the solid electrolyte through a reaction between the precursor and the reactant.

HYBRID DRYING SYSTEM FOR MANUFACTURING SECONDARY BATTERY ELECTRODE

Absstract of: US2025383149A1

Provided is an orthogonal-axis power transmission device. The orthogonal-axis power transmission device according to an embodiment of the present inventive concept includes: a main structure assembly forming an exterior structure and having a space portion formed therein, the space portion being sealed; an input shaft assembly connected to one side of the main structure assembly, and to which rotational power of a motor is input; an output shaft assembly connected to the other side of the main structure assembly intersecting the input shaft assembly, and from which the rotational power of the motor is output; and a link assembly for changing a power transmission direction arranged to operate in the space portion of the main structure assembly to prevent propagation of noise or vibration, connected to the input shaft assembly and the output shaft assembly within the main structure assembly by a link method, and changing the power transmission direction from the input shaft assembly to the output shaft assembly.

MANUFACTURING LINE, PROCESS, AND SINTERED ARTICLE

Absstract of: US2025383145A1

A method of manufacturing ceramic tape includes a step of directing a tape of partially-sintered ceramic into a furnace. The tape is partially-sintered such that grains of the ceramic are fused to one another yet the tape still includes at least 10% porosity by volume, where the porosity refers to volume of the tape unoccupied by the ceramic. The method further includes steps of conveying the tape through the furnace and further sintering the tape as the tape is conveyed through the furnace. The porosity of the tape decreases during the further sintering step.

METHODS OF INDICATING BATTERY CAPACITY

Absstract of: US2025383404A1

The present disclosure provides apparatuses and methods of performing controlling actions. The method includes charging a battery having a cathode. The cathode includes a redox indicator. The battery is discharged, where discharging the battery includes identifying a potential drop of the redox indicator. The controlling action is performed based on the potential drop.

LITHIUM BATTERY SEPARATOR BASED ON REACTION CONTROL AGENT, AND PREPARATION METHOD FOR LITHIUM BATTERY SEPARATOR

Absstract of: US2025382416A1

Provided are a lithium battery separator based on a reaction control agent, and a preparation method for a lithium battery separator. The lithium battery separator is prepared based on a high-molecular weight poly-p-phenylene terephthalamide polymer solution with low apparent viscosity. A preparation method for the high-molecular weight poly-p-phenylene terephthalamide polymer solution with low apparent viscosity includes the following steps: adding a reaction control agent in the process of synthesizing poly-p-phenylene terephthalamide from p-phenylenediamine and terephthaloyl chloride to obtain a high-molecular weight poly-p-phenylene terephthalamide polymer solution with low apparent viscosity containing the reaction control agent, where a concentration of the reaction control agent in the high-molecular weight poly-p-phenylene terephthalamide polymer solution with low apparent viscosity is less than 300 ppm, and the reaction control agent is a solvent which is miscible with the first solvent and capable of curing the poly-p-phenylene terephthalamide at the same time.

BATTERY CELL AND BATTERY MODULE INCLUDING SAME

Absstract of: WO2025258987A1

Disclosed are a battery cell and a battery module including same. A battery cell includes: a can housing including a receiving flat plate having a terminal hole at a central portion thereof, and a receiving sidewall extending from the periphery of the receiving flat plate in an axial direction perpendicular to the receiving flat plate; an electrode assembly accommodated in an inner receiving space of the can housing and including a jelly-roll shaped electrode cylinder and a core member, wherein the electrode cylinder is formed by winding a first electrode and a second electrode with a separator interposed therebetween and has a core hollow space provided at a central portion thereof, and the core member fills the core hollow space to support the inner circumferential surface of the electrode cylinder; a current collecting member including a first current collecting plate covering one end of the electrode cylinder to be bonded to the first electrode, and a second current collecting plate covering the other end of the electrode cylinder to be bonded to the second electrode; and an electrode terminal mechanically coupled to the core member through the terminal hole and the first current collecting plate and electrically connected to the first current collecting plate.

ULTRA-HIGH-SPEED DUAL CUTTING SYSTEM FOR SECONDARY BATTERY AND ULTRA-HIGH-SPEED DUAL CUTTING METHOD FOR SECONDARY BATTERY

Absstract of: WO2025258977A1

The purpose of the present invention is to provide a system for cutting an electrode (10) (negative/positive), which is conveyed via a reel, at a predetermined pitch during notching process in a secondary battery manufacturing process. The configuration of the present invention includes: an electrode supply unit (120) configured to supply the electrode (10) of a secondary battery; an electrode feeder (130) configured to feed the electrode (10) supplied from the electrode supply unit (120) for cutting; a primary cutting part (140) configured to primarily cut the electrode (10) supplied by the electrode feeder (130); and a secondary cutting part (150) configured to secondarily cut the electrode (10) supplied from the primary cutting part (140). The effect of the present invention is that equipment which cuts the electrode (10) supplied in a reel form at an ultra-high speed with a predetermined pitch according to the specification of a product to be produced, performs a visual inspection, and then loads good and defective products into magazines can be used to achieve at least twice the production volume of conventionally used equipment.

BATTERY CELL, AND BATTERY PACK AND VEHICLE INCLUDING SAME