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SUPPORT STRUCTURE FOR A MOTOR VEHICLE BATTERY ASSEMBLY

Resumen de: WO2025191456A1

The invention relates to a support structure comprising two side walls (30) transversely delimiting therebetween a recess (24) for receiving battery elements, and a protective panel (50) arranged under the recess, the protective panel (50) comprising a protective plate or several stacked protective plates (52, 54), at least one protective plate (52, 54) comprising a central region (52A, 54A) extending under the recess and two side regions (52B, 54B) projecting laterally with respect to the side walls (30) of the recess (24), at least one of the side regions (52B, 54B) being provided with ribs (84).

LUBRICATING COMPOSITIONS FOR BATTERY IMMERSION COOLING

Resumen de: WO2025194085A1

This disclosure describes a cooling fluid for immersion cooling system. The cooling fluid includes ester type base stock or hydrocarbon base stock; and phosphate ester having the formula (I) where each R is independently C1-C18 alkyl group, unsubstituted phenyl group or C1-C12 alkyl-substituted phenyl group.

Einschraubmutter und Kontaktbaugruppe mit Einschraubmutter

Resumen de: DE102024107628A1

Die vorliegende Erfindung betrifft eine Einschraubmutter (1) zum Einschrauben in eine Stromschiene (64), insbesondere eines Batteriemoduls (102), wobei die Einschraubmutter (1) ein selbstschneidendes oder selbstformendes Außengewinde (4) aufweist. Ferner betrifft die Erfindung eine Kontaktbaugruppe (62) mit einer Einschraubmutter (1), mit einer Stromschiene (64) und mit einer in die Einschraubmutter (1) einschraubbare Kontaktschraube (44). Die Einschraubmutter (1) weist vorteilhaft einen Berührschutz (60) auf und ist in die Stromschiene (64) und insbesondere in ein mit ihrem Außengewinde (4) geschnittenen Gewinde (6) in der Stromschiene (64) eingeschraubt.

Verfahren zur Oberflächenmodifikation von Metalloxidsubstraten

Resumen de: DE102024107590A1

Die vorliegende Erfindung betrifft ein Verfahren zur Oberflächenmodifikation von Metalloxidsubstraten, das dadurch gekennzeichnet ist, dass das Metalloxidsubstrat(1) zunächst in Anwesenheit von Li+-Ionen mit einer organischen Säure, bei der es sich um eine Carbonsäure oder eine vinyloge Carbonsäure handelt, in Kontakt gebracht wird, und anschließend(2) mit einer anorganischen Säure, bei der sich nicht um Fluorwasserstoff oder Flusssäure handelt, in Kontakt gebracht wird, und dass die Verfahrensschritte (1) und (2) in Anwesenheit eines Lösungsmittels durchgeführt werden.Die Erfindung betrifft weiterhin ein oberflächenmodifiziertes Metalloxidsubstrat, das durch das Verfahren erhalten wird, sowie dessen Verwendung zur Herstellung einer Batterie oder einer Batteriekomponente, und eine Batterie oder Batteriekomponente, die dieses oberflächenmodifizierte Metalloxidsubstrat umfasst.

ACTIVE BALANCING OF ENERGY STORAGE PREFERABLY AT MODULE AND RACK LEVEL

Resumen de: WO2025191034A1

The invention provides an energy storage unit comprising: a plurality of energy storage subunits connected in series; and at least one converter connected on a first side to one or more of the plurality of energy storage sub-units and connected on a second side to a bus; wherein the bus extends in a first direction and the plurality of energy storage sub-units are arranged in alternating polarity orientation in a second direction different to the first direction.

METHOD OF PROCESSING A CATHODE COMPOSITION

Resumen de: WO2025191391A1

A method of processing a cathode composition for a lithium-ion secondary cell is described. The method includes providing an unprocessed cathode composition comprising an electrochemically active material and a polymer binder, and subjecting the unprocessed cathode composition to heat treatment. The resultant heat-treated cathode compositions are useful as cathodes in secondary cells. Cathode compositions obtained or obtainable by such a method are also described.

DISCHARGE SYSTEM FOR STORAGE CELLS AND METHOD FOR OPERATING A DISCHARGE SYSTEM FOR STORAGE CELLS

Resumen de: WO2025190640A1

The invention relates to a discharge system (2) for storage cells (5), comprising: - a control device (6) having a control unit (8); a voltage measuring unit (10); - a current source (12); - a discharge unit (14) comprising at least one receiving unit (16) for a storage module (4); and, - a contacting device (18) which is adapted to the geometry of the storage module (4); characterised in that a plurality of storage cells which are mechanically fixedly connected to one another form the storage module (4), the contacting device is connected to the storage module (4) in such a way that electrical contacting (20) of the storage cells (5) takes place, such that the storage cells (2) are connected in series (22) and are arranged together with the current source (12) in a closable circuit (24), and the storage cells (5) connected in series (22) are each connected (32) to the voltage measuring unit (10) in order to evaluate voltage measurements, - wherein a short-circuit switch (30) is connected in parallel in each case to the poles (28) of the storage cell (5) located in the series circuit (22) and has a control connection (34) to the control device (6), and - is designed to be switchable by a control signal (36) generated by the control unit (8) of the control device (6).

METHOD FOR WELDING A FOIL STACK AND COMPONENT ASSEMBLY

Resumen de: WO2025190688A1

The invention relates to a method for welding a foil stack (3), which has a plurality of metal foils (4), to a component, in particular to a current collector (2), comprising: welding the foil stack (3) to the component by laser welding in a lap joint. In the method, at least three laser spots (8a-d) are generated on the surface (3a) of the foil stack (3), which laser spots form a common molten bath (10) of a weld seam (7) which connects the foil stack (3) to the component. The invention also relates to a component assembly (1) which is produced by welding the foil stack (3) to the component according to the method described above.

CELL HOUSING FOR AN ENERGY STORAGE CELL

Resumen de: WO2025190691A1

The invention relates to a cell housing, which is in particular cylindrical or prismatic, for an energy storage cell, the cell housing comprising: (i) a cell body having an opening, wherein a first coupling device is arranged on the cell body in the region of the opening; (ii) a cover having a second coupling device, wherein the cover is designed to close the opening in the cell body; (iii) wherein the first coupling device and the second coupling device are designed such that, by interlocking with one another, they establish a form-fitting and releasable connection by which the cell body can be closed.

SECONDARY BATTERY

Resumen de: US2025293352A1

Some embodiments relate to a secondary battery, in which an electrode assembly is prevented from moving inside a first case, and when the electrode assembly is swelled, the first case is prevented from being excessively deformed. A secondary battery includes a first case, a second case configured to be disposed on the first case, and an electrode assembly positioned between the first case and the second case. At least one of the first case or the second case may include a concave part that is in contact with the electrode assembly.

COMPONENTS AND SYSTEMS TO MANAGE THERMAL RUNAWAY ISSUES IN ELECTRIC VEHICLE BATTERIES

Resumen de: US2025293350A1

Components and systems to manage thermal runaway issues in electric vehicle batteries are provided. Exemplary embodiments include a heat control member. The heat control member can include reinforced aerogel compositions that are durable and easy to handle, have favorable performance for use as heat control members and thermal barriers for batteries, have favorable insulation properties, and have favorable reaction to fire, combustion and flame-resistance properties. Also provided are methods of preparing or manufacturing such reinforced aerogel compositions. In certain embodiments, the composition has a silica-based aerogel framework reinforced with a fiber and including one or more opacifying additives.

SECONDARY BATTERY MODULE WITH IMPROVED MODULE INTERIOR TEMPERATURE STABILITY

Resumen de: US2025293347A1

A heat absorbing pack for a secondary battery module and a secondary battery module including the same are provided. The heat absorbing pack has a structure including a superabsorbent matrix impregnated with water inside a pouch, and a heat-dispersing structure is inserted between the superabsorbent matrix and the pouch. Accordingly, the heat absorbing pack can absorb a large amount of heat from the surroundings when heat is generated inside the module, and thus, when it is provided in a secondary battery module, it is possible to prevent a rapid change in the ambient temperature of the secondary battery. Furthermore, the superabsorbent matrix of the heat absorbing pack can be uniformly exposed to the heat energy of the surroundings to prevent damage to the heat absorbing pack due to heat generation inside the module.

BATTERY CELL AND BATTERY MODULE

Resumen de: US2025293415A1

A battery cell (100) includes a battery element (110), an exterior member (120) sealing the battery element (110), a negative electrode terminal (134) electrically connected to the battery element (110) and drawn out of the exterior member (120), and a first insulation tape (140) covering the exterior member (120) around the negative electrode terminal. The first insulation tape (140) is at least partially bonded to each other.

DEVICE FOR FORMING ELECTRODE LEAD OF SECONDARY BATTERY AND METHOD OF FORMING ELECTRODE LEAD

Resumen de: US2025293411A1

A manufacturing device of a secondary battery according to an exemplary embodiment of the present disclosure, as a manufacturing device of a secondary battery including a plurality of electrodes and separators stacked alternately, electrode tabs provided at ends of the plurality of electrodes, and an electrode lead coupled to the electrode tabs, includes an upper fixing mold and a lower fixing mold fixing the electrode lead interposed therebetween, a plurality of lower roller molds arranged to be spaced apart from the lower fixing mold toward an outer end of the electrode lead, and a plurality of upper roller molds arranged to be spaced apart from the upper fixing mold toward the outer end of the electrode lead.

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

Resumen de: US2025293299A1

An electrolyte and a rechargeable lithium battery including the electrolyte are provided. The rechargeable lithium battery includes a positive electrode that includes a positive electrode active material, a negative electrode that includes a negative electrode active material, and an electrolyte. The electrolyte includes a nitrile-based additive. The positive electrode active material includes at least one selected from among compounds represented by Lia1Fex1B1y1PO4-b1 and Lia2Mnz2Fex2B1y2PO4-b2, where B1 is at least one element selected from among Ti, Mg, V, and Nb.

ELECTROLYTE ADDITIVE FOR ELECTROLYTE, ELECTROLYTE FOR RECHARGEABLE LITHIUM BATTERY, AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME

Resumen de: US2025293300A1

Provided are an electrolyte additive represented by Chemical Formula 1 or Chemical Formula 2, and an electrolyte for a rechargeable lithium battery including the same.Details regarding Chemical Formula 1 and Chemical Formula 2 are as described in the specification.

ELECTROCHEMICAL APPARATUS AND ELECTRONIC APPARATUS CONTAINING SAME

Resumen de: US2025293301A1

An electrochemical apparatus including an electrode assembly, where the electrode assembly includes a positive electrode, a negative electrode, and tabs, and the tabs extend out of a housing in a first direction. A positive electrode active substance layer has a first positive electrode active substance layer side and a second positive electrode active substance layer side opposite to the first positive electrode active substance layer side in the first direction. A negative electrode active substance layer has a first negative electrode active substance layer side and a second negative electrode active substance layer side opposite to the first negative electrode active substance layer side in the first direction. The tabs includes a positive tab and a negative tab, the positive tab is provided at the first positive electrode active substance layer side and the negative tab is provided at the first negative electrode active substance layer side.

METAL-CONTAINING ELECTROLYTE AND MANUFACTURE METHOD THEREOF

Resumen de: US2025293297A1

A metal-containing electrolyte is provided in some embodiments of the present disclosure, including a structure of formula 1 as follows, in which “R” is hydrogen or an alkyl group including 1 to 20 carbon atoms; “M” is a metal element; “a” is an integer from 5 to 50; “b” is an integer from 2 to 100; and “z” is an integer from 0 to 10;

SULFIDE-BASED SOLID ELECTROLYTE WITH IMPROVED DUCTILITY AND FRACTURE STRENGTH

Resumen de: US2025293294A1

A sulfide-based solid electrolyte with an argyrodite crystal structure is represented by the formula Li6−aPS5−aX1+a, where X is one or more halogen elements selected from Cl, Br, I, and their combinations, and ‘a’ ranges from 0 to 0.5. The halogen elements are doped at 4a, 4c sites, or both within the argyrodite structure. Variations of this composition include Li5.5PS4.5X1.5, where X can be single or mixed halogens, such as Cl, Br, I, or combinations thereof. The solid electrolyte may be synthesized using a ball milling process to ensure uniform halogen distribution and achieve a disordered crystal structure that enhances ductility and fracture strength. Mechanical properties such as formation energy, bulk modulus, shear modulus, Young's modulus, and Poisson's ratio are optimized for improved performance. Additionally, this electrolyte can be used in lithium-ion batteries, which are suitable for vehicle applications.

ANODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY AND METHOD FOR PREPARING SAME

Resumen de: US2025293242A1

Disclosed is an anode active material for a lithium secondary battery, capable of attaining excellent charge capacity and electrical conductivity, by selectively filling a space of a porous particle with a diameter no larger than a specific size that cannot accommodate the volume change of silicon and coating a primary carbon coating layer, a silicon coating layer, and a secondary carbon coating layer in a space of the porous particle with a diameter no smaller than a specific size that can accommodate the volume change of silicon.

SECONDARY BATTERY AND ELECTRIC DEVICE

Resumen de: US2025293240A1

A secondary battery and an electrical device comprising the secondary battery. The secondary battery includes a negative electrode sheet including a silicon-carbon composite material having a three-dimensional-network cross-linked pore structure, and an electrolyte including a first component including a cyclic functional group containing a sulfate group or a sulfonate group.

POLYMER-SUPPORTED AND LITHIOPHILIC MATERIAL IMPREGNATED CARBON FIBER PROTECTION FOR LI-METAL STABILITY

Resumen de: US2025293319A1

Methods of making a protected lithium metal anode including steps of: a) applying a polymer solution to a three-dimensional substrate to form a coated three dimensional substrate, b) applying the coated three dimensional substrate to a lithium metal surface to form a coated lithium metal surface, and applying pressure to the coated lithium metal surface to form the protected lithium metal anode. An anode formed by the method and cells and batteries employing the anode.

METHOD FOR MANUFACTURING SECONDARY BATTERY AND SECONDARY BATTERY MANUFACTURED USING THE SAME

Resumen de: US2025293314A1

In a method for manufacturing a secondary battery, the method includes: electrically connecting a first current collector plate to the first electrode plate of an electrode assembly including: a first electrode plate; a second electrode plate; and a separator between the first electrode plate and the second electrode plate; pressing the first current collector plate in the direction of the electrode assembly by a setting pressing amount to press at least a portion of the separator that protrudes outward from the electrode assembly relative to the first electrode plate; and performing internal insulation treatment, wherein the pressing amount may be set based on a length of an initial gap between the first current collector plate and the separator and a length of an initial separator pressing allowance space between the separator and the first electrode plate.

Processes and Apparatus for Recycling Battery Waste Materials

Resumen de: US2025293329A1

A process for recycling a lithium containing battery waste material, the process comprising the step of heat treating the battery waste material in a vessel, wherein the inner surface of the vessel is formed from a chromium-containing alloy with an aluminium diffusion coating.

METHOD AND SYSTEM FOR DETECTING BATTERY DEFECT IN FORMATION PROCESS

Nº publicación: US2025293326A1 18/09/2025

Solicitante:

SK ON CO LTD [KR]
SK On Co., Ltd