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SOLID ELECTROLYTE MATERIALS AND METHODS FOR MAKING THE SAME

Resumen de: WO2025122975A1

A sulfide-based solid electrolyte composition contains lithium, sulfur, and phosphorus, and is partially coated with an amorphous layer that includes an alkali metal halide. Alternatively, the sulfide-based solid electrolyte composition is dispersed in a matrix of an alkali metal halide. The sulfide-based solid electrolyte composition is suitable for use in solid-state batteries.

METHOD FOR REMOVING, BY PUSHING, ELECTROCHEMICAL BUNDLES FROM OUT-OF-USE AND/OR END-OF-LIFE ELECTROCHEMICAL STORAGE CELLS, ASSEMBLED INTO A BATTERY MODULE OR BATTERY PACK, WITH A VIEW TO RECYCLING SAME

Resumen de: WO2025119923A1

The invention relates to a method for separating an electrochemical bundle from the packaging therefor (case or pouch) of an out-of-use and/or end-of-life storage cell, which is integrated into a battery module and/or battery pack, comprising successively cutting the two end sections of the packaging, mechanically reinforcing the module between the two cuts in order to keep the storage cells mechanically connected, resting the module against a support, inserting a dedicated pushing tool into the electrochemical bundle and then removing the latter by pushing it out of the packaging.

ACTIVE MATERIAL FOR LITHIUM-ION ELECTROCHEMICAL ELEMENT

Resumen de: WO2025119905A1

A negative electrode for a lithium-ion electrochemical element, the electrode comprising: - a current collector, - a composition of active material deposited on at least one of the faces of the current collector and comprising an active material which is a compound of formula M15-xM'xM''1-yM'''yO40-aXb wherein: M represents one or more elements selected from Nb, Ta and V, M' represents one or more elements selected from Ti, Zr, Mo, Cr, As and Sb, M'' represents one or more elements selected from Mo and W, M''' represents one or more elements selected from Cr, V and Te, X represents a halogen, 0≤x≤7.5; 0≤y<1; 0≤a≤5; 0≤b≤1, the compound satisfying the equation (15-x)*5 + nx + (1-y)*6 + my =(40-a)*2 + b; n and m respectively indicating the average degrees of oxidation of M' and M'''.

METHOD FOR REMOVING, BY ANCHORING THEN PULLING, THE ELECTROCHEMICAL BUNDLE FROM OUT-OF-USE AND/OR END-OF-LIFE ELECTROCHEMICAL STORAGE CELLS, IMPLEMENTED INDIVIDUALLY OR IN A BATTERY MODULE OR BATTERY PACK, WITH A VIEW TO RECYCLING SAME

Resumen de: WO2025119921A1

The invention relates to a method for separating an electrochemical bundle from the packaging therefor (case or pouch) of an out-of-use and/or end-of-life metal-ion storage cell, which consists in making at least one cut in the packaging, anchoring a dedicated tool in the electrochemical bundle and then removing the latter by pulling it out of the packaging.

BATTERY STACK

Resumen de: WO2025122666A1

Provided herein are embodiments related to a bilayer stack comprising a positive electrode current collector (PECC); a first negative electrode current collector (NECC) and a second NECC; a first metal layer and a second metal layer; a first cathode and a second cathode on opposite sides of, and in contact with, the PECC. Provided herein are also batteries which include two or more bilayer stacks. The bilayer stack further comprises a first solid-state electrolyte between the first metal layer and the first cathode; and a second solid-state electrolyte adjacent to the second cathode.

AUTOMATED WAREHOUSE FOR THE FORMATION OF ELECTROCHEMICAL CELLS

Resumen de: WO2025120529A1

An automatic warehouse (10) for forming electrochemical cells comprises a containment structure (14) within which there are housed: a plurality of formation stations (19) each of which is configured to receive at least one tray (11) containing electrochemical cells (100); a plurality of formation modules (28) configured to implement an at least partial formation cycle of the electrochemical cells (100); an electrical power supply unit (32) connectable to an electrical source; a transfer station (18) configured to receive trays (11) containing electrochemical cells (100); a transport system (20) for transferring trays (11) containing electrochemical cells (100) between the transfer station (18) and each formation station (19). An electrical connection system (26) configured to electrically connect the electrical power supply unit (32) to at least one formation module (28) of said plurality of formation modules (28) is placed in each formation station (19).

THERMOREGULATING SYSTEM BY IMMERSION OF A BATTERY PACK COMPRISING CELLS WHICH HAVE TERMINALS LOCATED ALONG A SIDE OF THE PACK

Resumen de: WO2025120417A1

An electric battery unit, comprising an array of battery cells (2) immersed, within a container (4) of the battery unit (1), in a flow of a temperature-regulating fluid, for maintaining the battery unit within a determined temperature range. Each cell (2) has a positive pole (3P) and a negative pole (3N) arranged on a side surface (2C) of the cell, facing a side wall (4A) of the container (4). All the positive poles (3P) and all the negative poles (3N) of the cells (2) are contained in two respective side chambers (CP, CN) of the battery unit (1) that are insulated from each other and are insulated with respect to the gaps (7) between the cells (2). Each of the side chambers (CP, CN) is connected to the input collector chamber (5) and the output collector chamber (6). In the connection between each of the side chambers (CP, CN) and the inlet collector chamber (5) and/or in the connection between each of the side chambers (CP, CN) and the outlet collector chamber (6) at least one restricted passage (90A, 90B, 91A, 91B) is interposed, such that the temperature-regulating fluid does not tend to flow preferentially through the side chambers (CP, CN) rather than through the gaps (7) between the cells (2).

ELECTROCHEMICAL BATTERY

Resumen de: WO2025119834A1

An electrochemical battery, comprising a sulphur cathode; a lithium anode; and a solid electrolyte between the sulphur cathode and the lithium anode, wherein the solid electrolyte has an argyrodite-type structure and comprises lithium, phosphorus, sulphur, and a halogen.

STORAGE FOR THE PROCESS OF AGING ELECTROCHEMICAL CELLS AND METHOD FOR IMPLEMENTING AN AGING PROCESS ON ELECTROCHEMICAL CELLS

Resumen de: WO2025120525A1

A warehouse (10) for the process of aging electrochemical cells comprises a containment structure (12) inside which are housed: a plurality of aging stations (17) each of which is configured to receive at least one tray (11) containing electrochemical cells (100); at least one transfer station (16) configured to receive trays (11) containing electrochemical cells (100); and a transport system (18) for transferring trays (11) containing electrochemical cells (100) between the transfer station (16) and each aging station (17) and between each aging station (17) and said transfer station (16). The warehouse further comprises a conditioning system (30) comprising a warehouse conditioning circuit (31) configured to thermally condition the trays (11) independently of each other when placed in the respective aging stations (17). The warehouse conditioning circuit (31) is placed in fluid connection with a fluid heater (32) and with a fluid cooler (33) in which the fluid is a conditioning fluid. The warehouse conditioning circuit (31) comprises a first group of hydraulic pipings (34) comprising delivery ducts (36) connecting the fluid heater (32) with each aging station (17) and a second group of hydraulic pipings (35) comprising delivery ducts (38) connecting the fluid cooler (33) with each aging station (17).

WAREHOUSE FOR THE FORMATION OF ELECTROCHEMICAL CELLS

Resumen de: WO2025120528A1

A warehouse (10) for the formation of electrochemical cells, comprising a containment structure (12) having an inner volume (14) wherein they are housed: a plurality of formation stations (15); a plurality of formation modules (16) each of which is configured to be coupled to a cell tray (11) to implement an at least partial formation cycle of electrochemical cells (100) contained in the cell tray (11); at least one transfer station (20) configured to interface between the inner volume (14) of the containment structure (12) and an environment external to the inner volume (14) of the containment structure (12) and to receive cell trays (11) from the external environment and to deliver cell trays (11) from the inner volume (14) to the external environment; a transport system (22) for transferring cell trays (11) containing electrochemical cells (100) between the transfer station (20) and each formation station (15) or in combination between each formation station (15) and the transfer station (20); wherein at least one formation module (16) of the plurality of formation modules (16) is placed in each formation station (15).

METHOD FOR FORMING BATTERY CELLS

Resumen de: WO2025120509A1

A method for forming battery cells comprises electrically coupling battery cells (100) to an electrically active station (10); providing the electrically active station (10) configured to selectively apply to each battery cell (100) first maximum currents or second maximum currents having intensities comprised between 2 5 and 5 times the intensity of the first maximum currents; performing the formation of the battery cells (100) by electrically charging and discharging the battery cells (100), wherein performing the formation comprises applying the first maximum currents to each battery cell (100); performing DC/IR tests on the battery cells (100), wherein performing the DC/IR tests comprises applying the second 0 maximum currents to each battery cell (100); removing the battery cells (100) from the electrically active station (10); wherein performing the formation and performing DC/IR tests are both implemented before removing the battery cells (100) from the electrically active station (10).

DEVICE FOR FORMING A PLURALITY OF BATTERIES AND RELATED METHOD OF CONTROLLING A FORMING PROCESS

Resumen de: WO2025120512A1

The device of this disclosure allows the formation process to be performed on multiple batteries (5) simultaneously due to an auxiliary board (8) comprising a plurality of output connectors (9), wherein each output connector (9) is configured to be directly connected to a respective charging connector (7) of each battery (5), as well as a plurality of bidirectional switches (10a, 10b) that may be individually opened/closed to define electrical conduction paths between the output terminal (6) of each power supply (2) of the formation board and a charging connector (7) of each battery (5) to be subjected to the formation process. In addition, the same control unit (4) of the formation board is also configured to individually close/open each of the bidirectional switches (10a, 10b) of the auxiliary board (8) in order to close/open a respective electrical conduction path.

TRACTION BATTERY PACK CONNECTIONS FOR CONTAINING BATTERY CELL EXPANSION FORCES

Resumen de: US2025192322A1

Battery structural connections are provided for containing battery cell expansion forces within a traction battery pack. An exemplary traction battery pack may provide structural connections between each of a plurality of cell stacks and a structural plate member that is arranged to span the plurality of cell stacks. Each cell stack may include a pair of cross-member assemblies, and each cross-member assembly may include a threaded rod that is receivable through an opening of the structural plate member. A nut may be secured to the threaded rod for containing battery cell expansion forces.

VENTING THERMAL EXCHANGE DEVICE FOR BATTERY PACK

Resumen de: US2025192353A1

A battery pack assembly includes a thermal exchange device positioned between a first cell stack on a first tier and a second cell stack on a second tier. The thermal exchange device includes at least one coolant channel that communicates a coolant to manage thermal energy in the first cell stack, the second cell stack, or both. The thermal exchange device further includes at least one vent channel that is configured to receive vent byproducts from at least one battery cell in the first cell stack, from at least one battery cell in the second cell stack, or both.

ELECTRODE ASSEMBLY, BATTERY CELL, BATTERY AND ELECTRICAL DEVICE

Resumen de: US2025192369A1

The embodiments of the present application provide an electrode assembly, a battery cell, a battery, and an electrical device. The electrode assembly includes a first electrode plate, a second electrode plate, and an isolation assembly. The first electrode plate and the second electrode plate have opposite polarities, and the isolation assembly is configured to isolate the first electrode plate from the second electrode plate. The first electrode plate, the second electrode plate, and the isolation assembly are wound and form a bent area. The isolation assembly includes a multi-layer structural area provided between the first electrode plate and the second electrode plate, and at least a portion of the multi-layer structural area is provided in the bent area.

BATTERY PACK VENTING ASSEMBLY AND VENTING METHOD

Resumen de: US2025192351A1

A battery pack venting assembly includes a battery pack enclosure assembly providing an battery pack interior, and cell stacks within the battery pack interior. Each cell stack includes a plurality of battery cells. Module enclosure assemblies are also within the battery pack interior. Each of the module enclosure assemblies houses one or more of the cell stacks. An exhaust trunk extends through the battery pack enclosure assembly from the battery pack interior to an area outside the battery pack interior. Exhaust branches within the battery pack interior each extend from one of the module enclosure assemblies to the exhaust trunk.

BATTERY BOX, BATTERY AND ELECTRICAL APPARATUS

Resumen de: US2025192262A1

A battery box, a battery, and an electrical apparatus. The battery box comprises a box cover and a box body, the box body and the box cover covering each other to jointly define an accommodating cavity. A heating structure is provided on the box cover, and the heating structure includes at least one of a conductive heating plate or a heating film.

Capillary Suspension-based Ink Formulations and Methods for Stable Graphite Anodes in Li-Ion Batteries

Resumen de: US2025192141A1

Aspects of the present disclosure include method for preparing a capillary-suspension based graphite anode, including dissolving an aqueous binder in water to form a gel; suspending a conductive additive and active material in said gel; and adding a short-chain immiscible hydrocarbon to the gel to improve the capacity at high currents and capacity retention in Li-Ion batteries using electrodes of the present disclosure.

ELECTRODE FOR LITHIUM SECONDARY BATTERY AND METHOD OF MANUFACTURING THE SAME

Resumen de: US2025192136A1

A method of manufacturing an electrode for a lithium secondary battery comprises a slurry application operation of applying an active material slurry to a coated part excluding an uncoated part disposed at one edge of a current collector, and dividing the current collector into the coated part on which a slurry is applied and the uncoated part on which the slurry is not applied, a heating operation of heating the uncoated part with a heater, a first rolling operation of rolling the coated part with a first rolling roll, and a second rolling operation of rolling the uncoated part with a second rolling roll.

LITHIUM PRIMARY BATTERY

Resumen de: US2025192192A1

A lithium primary battery includes a positive electrode, a negative electrode, and a non-aqueous electrolyte. The positive electrode includes at least one selected from the group consisting of manganese dioxide and fluorinated graphite. The negative electrode includes a lithium alloy, and the lithium alloy includes aluminum and magnesium. The total content of the aluminum and the magnesium in the lithium alloy is 0.1 mass % or more and 11 mass % or less.

BATTERY

Resumen de: US2025192134A1

A current collector, a plurality of electrodes having at least one of a positive electrode active material layer and a negative electrode active material layer formed on the current collector, and a laminate formed by laminating a plurality of separators located between the positive electrode active material layer and the negative electrode active material layer in a predetermined lamination direction, a part of the current collector is a current collector foil in which the positive electrode active material layer and the negative electrode active material layer are not formed, and when the laminate is viewed along the lamination direction, an outer peripheral side end portion of the current collector foil located at a central portion in the lamination direction is located on an outer peripheral side from an outer peripheral side end portion of the current collector foil located at an end portion in the lamination direction.

POSITIVE ELECTRODES COMPRISING VINYLIDENE FLUORIDE AND PERFLUORINATED OLEFIN COPOLYMER-CONTAINING BINDERS FOR BATTERIES THAT CYCLE LITHIUM IONS

Resumen de: US2025192180A1

A battery that cycles lithium ions includes a positive electrode including an electroactive positive electrode material and a polymer binder mixture. The polymer binder mixture includes a polyvinylidene fluoride (PVDF) homopolymer and a copolymer including vinylidene fluoride (VDF) monomers and at least one perfluorinated olefin monomer. The positive electrode may be manufactured by depositing a precursor mixture on a substrate at a temperature of less than or equal to 30 degrees Celsius to form a precursor layer. The precursor mixture may include the electroactive positive electrode material, the polymer binder mixture, and an organic solvent comprising γ-valerolactone, dihydrolevoglucosenone, cyclopentanone, or a combination thereof. The organic solvent may be removed from the precursor layer to form the positive electrode on the substrate.

Verfahren zum Herstellen einer Traktionsbatterie eines Kraftfahrzeugs

Resumen de: DE102023134709A1

Verfahren zum Herstellen einer Traktionsbatterie (10) eines Kraftfahrzeugs, mit folgenden Schritten: Bereitstellen eines Gehäuses (11) mit einem ersten Gehäuseteil (12) und einem zweiten Gehäuseteil (13), wobei das erste und zweite Gehäuseteil (12, 13) in montiertem Zustand einen Innenraum (14) zumindest abschnittsweise definieren, und wobei das erste Gehäuseteil (12) und/oder das zweite Gehäuseteil (13) mindestens eine umlaufende Dichtung (16) trägt, die dann, wenn das erste und zweite Gehäuseteil (12, 13) miteinander verbunden sind, eine Trennstelle zwischen dem ersten und zweiten Gehäuseteil (12, 13) umlaufend abdichtet. Bereitstellen mehrerer Batteriezellen (15) oder mehrerer Batteriemodule aus jeweils mehreren Batteriezellen. Anordnen der Batteriezellen (15) oder Batteriemodule in dem ersten Gehäuseteil (12). Anordnen des zweiten Gehäuseteils (13) auf dem ersten Gehäuseteil (12), derart, dass die mindestens eine Dichtung (16) den Spalt oder die Trennstelle zwischen dem ersten und zweiten Gehäuseteil (12, 13) zunächst nur abschnittsweise abdichtet, sodass beim nachfolgenden weiteren Anordnen des zweiten Gehäuseteils (13) auf dem ersten Gehäuseteil (12) Luft an der mindestens einen Dichtung (16) vorbei in die Umgebung entweicht, bevor die mindestens eine Dichtung (16) den Spalt oder die Trennstelle zwischen dem ersten Gehäuseteil (12) und dem zweiten Gehäuseteil (13) umlaufend abdichtet. Verbinden des ersten Gehäuseteils (12) und des zweiten Gehäuseteil

Verfahren zum Betrieb einer Temperiervorrichtung und Vorrichtung zum Betrieb der Temperiervorrichtung

Resumen de: DE102023005011A1

Die Erfindung betrifft ein Verfahren zum Betrieb einer Temperiervorrichtung (T) eines elektrischen Energiespeichers (1) eines Fahrzeuges (2), wobei ein Kältemittelkreislauf (KK) einer Fahrzeugklimaanlage zur Temperierung einer Fahrzeugkabine (2.1) mit einem Temperierkreislauf (TK) zur Temperierung des elektrischen Energiespeichers (1) mittels eines Kältemittel-Kühlmittel-Wärmeübertragers (3) thermisch gekoppelt ist. Erfindungsgemäß ist vorgesehen, dass wenn anhand eines vorgegebenen Navigationszieles und/oder anhand von satellitengestützt erfassten Positionsbestimmungsdaten fahrzeugseitig erfasst wird, dass das Fahrzeug (2) eine Schnellladesäule zum Laden des elektrischen Energiespeichers (1) anfährt oder sich das Fahrzeug (2) in unmittelbarer Nähe zu einer Schnellladesäule befindet und eine Außentemperatur oberhalb eines vorgegebenen Temperaturwertes liegt, ein in dem Kältemittelkreislauf (KK) zu einer Förderung eines Kältemittels vorgesehener Kältemittelverdichter (4), ein in dem Temperierkreislauf (TK) zu einer Förderung eines Kühlmittels vorgesehene Fördereinheit (5) und der Kältemittel-Kühlmittel-Wärmeübertrager (3) für eine vorgegebenen Zeitdauer aktiviert bleiben und/oder werden. Weiterhin betrifft die Erfindung eine Vorrichtung zum Betrieb der Temperiervorrichtung (T).

Verfahren zum Ermitteln von Prozessparametern zum Herstellen einer Speicherzelle sowie Verfahren zum Herstellen einer Speicherzelle

Nº publicación: DE102023134233A1 12/06/2025

Solicitante:

BAYERISCHE MOTOREN WERKE AG [DE]
Bayerische Motoren Werke Aktiengesellschaft

Resumen de: DE102023134233A1

Die Erfindung betrifft ein Verfahren (23) zum Ermitteln von Prozessparametern (24, 25) zum Herstellen einer Speicherzelle (2) mittels einer elektronischen Recheneinrichtung (19), mit den Schritten: Ermitteln (30) von Wünschbarkeiten (26, 27) für Zielgrößen (16, 17) der Speicherzelle (2) mittels Wünschbarkeitsfunktionen (28, 29), welche jeweils einem jeweiligen Wert (16a, 17a) der jeweiligen Zielgrößen (16, 17) jeweils eine Zahl aus einem vorgegebenen Intervall zuordnet, Ermitteln (34) von prognostizierten Werten (16b, 17b) der jeweiligen Zielgröße (16, 17) mittels eines durch Regressionsanalyse (32) erzeugten Vorhersagemodells (33), welches die Zielgrößen (16, 17) in Abhängigkeit von den Prozessparamatern (24, 25) beschreibt, und Ermitteln (35) von prognostizierten Wünschbarkeiten (26a, 27a) für die Zielgrößen (16, 17) mittels der Wünschbarkeitsfunktionen (28, 29), Ermitteln (37) wenigstens eines jeweiligen optimierten Werts (24b, 25b) des jeweiligen Prozessparameters (25, 25) mittels einer Optimierungsmethode (36).