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Verfahren zur Herstellung eines Feststoffseparators

Resumen de: DE102024204375A1

Die Erfindung betrifft ein Verfahren (34) zur Herstellung eines Feststoffseparators (16). Eine Metallfolie (24) wird bereitgestellt, und auf die Metallfolie (24) werden mehrere Edukte (46) zum Ausbilden einer Mischung (50) aufgebracht. Auf die Mischung (50) wird eingewirkt, sodass die Edukte (46) miteinander reagieren und eine keramische Schicht (26) ausgebildet wird. Ferner betrifft die Erfindung ein Verfahren (32) zur Herstellung einer Feststoffbatterie (14) sowie eine Vorrichtung (36) zur Herstellung eines Feststoffseparators (16).

THERMISTOR BASED THERMAL RUNAWAY DETECTION SYSTEM FOR ELECTRIC VEHICLE

Resumen de: WO2025235294A1

An electric vehicle includes an electric motor configured for powering the electric vehicle; a battery system configured for supplying power to the electric motor, where the battery system includes a plurality of battery modules; one or more thermistors attached to each battery module, each thermistor configured to measure a temperature of the air around the battery module to which the thermistor is attached; and a controller configured to determine, based on temperatures measured by the one or more thermistors at different times, a rate of change of a temperature of the air around the battery module and configured to generate, in response to a determined rate of change that exceeds a threshold rate of change, a signal.

HERMETICALLY SEALED BATTERY CASINGS, AND METHODS OF PRODUCING THE SAME

Resumen de: WO2025235414A1

An electrochemical cell assembly includes a housing defining an internal volume configured to receive an electrochemical cell stack therein. The electrochemical cell stack includes a plurality of electrochemical cells stacked on top of each other. Each of the electrochemical cells includes at least one tab extending therefrom. The assembly may further include a feedthrough assembly configured to be electrically coupled to the electrochemical cell stack. The feedthrough assembly includes a conductive arm configured to align with and contact a tab of a corresponding electrochemical cell of the plurality of electrochemical cells when the electrochemical cell stack is disposed in the internal volume, and a feedthrough connector coupled to the conductive arm and configured to electrically couple the tab of the corresponding electrochemical cell to an electrical component external to the housing. The feedthrough assembly may reduce a number of weld points and an amount of passive materials in the assembly.

NONWOVEN BATTERY SEPARATOR, BATTERIES INCLUDING THE NON-WOVEN BATTERY SEPARATOR, AND PROCESSES OF MANUFACTURE

Resumen de: WO2025233653A1

A non-woven battery separator and processes for forming the non-woven battery separator includes a fiber blend including cellulose fibers, microfibrillated fibers, and optionally polyester and/or aramid fibers. Also disclosed are batteries including the non-woven battery separator. During fabrication, the non-woven battery separator can be effectively dried at temperatures between 120°C and 180°C, which results in the fibers absorbing water when in use. Some battery electrolytes such as lithium hexafluorophosphate react with water to form hydrogen fluoride (HF), which can be corrosive and shorten battery lifecycles and affect performance. Absorbing water from the electrolyte increases the battery life cycle by reducing HF generation.

ELECTRICAL POWER MANAGEMENT MODULE

Resumen de: WO2025233540A1

An electrical power management module (1a,1b) configured to provide electrical power between a battery (2a, 2b) and a power bus (3) of a vehicle, the electrical power management module (1a,1b) comprising a DC-DC converter configured to provide electrical power when the power bus voltage is higher than the battery voltage, and when the power bus voltage is lower than the battery voltage. The DC-DC converter is a non-isolated bidirectional buck-boost converter without series-connected capacitive elements, and is configured to work in buck mode, boost mode or buck-boost and pass-thru mode.

MULTI-PURPOSE HEAT EXCHANGER SHEET

Resumen de: WO2025234999A1

A heat exchanger includes a first plate, a second plate and a sheet positioned between the first plate and the second plate. A sheet first face sheet abuts a first plate inner surface. A sheet perimeter portion abuts a second plate perimeter portion. A second plate inward portion is spaced from a first plate inward portion. The sheet perimeter portion is connected to the first plate perimeter portion and to the second plate perimeter portion such that a coolant flow path is formed between the first plate and the second plate. The sheet inward portion includes at least one protrusion having a first end coupled to the sheet and a second free end partially detached from the sheet. The at least one protrusion extends from the first plate to the second plate such that the first end abuts the first plate and the second free end abuts the second plate.

BATTERY PACK

Resumen de: EP4648177A1

Provided is a battery pack including at least two layers of battery modules (1) and a liquid cooling assembly (2). A liquid cooling assembly (2) includes a first plate (21), a second plate (22), and a third plate (23), wherein the second plate (22) is located between the first plate (21) and the third plate (23), a first cooling flow channel (24) is formed between the first plate (21) and the second plate (22), a second cooling flow channel (25) is formed between the second plate (22) and the third plate (23), and communication or discommunication between the first cooling flow channel (24) and the second cooling flow channel (25) is formed between the second plate (22) and the third plate (23).

LITHIUM SECONDARY BATTERY

Resumen de: EP4648167A1

A lithium secondary battery includes a positive electrode; a negative electrode; a separator interposed between the positive electrode and the negative electrode; and a non-aqueous electrolyte. The positive electrode includes a positive electrode active material, the positive electrode material includes a perlithium manganese-rich oxide containing 50 mol% or more of Mn based on all metal elements excluding lithium, and having a molar ratio of lithium to transition metal exceeding 1, the non-aqueous electrolyte includes a lithium salt, an organic solvent, and an additive, the organic solvent includes a first organic solvent and a second organic solvent, the first organic solvent includes ethylene carbonate, the second organic solvent includes diethyl carbonate and ethyl methyl carbonate, and the additive includes cyclic sulfur oxide represented by a specific chemical formula.

BATTERY ELECTRODE SHEET AND MANUFACTURING METHOD THEREFOR, BATTERY, AND ELECTRICAL APPARATUS

Resumen de: EP4648118A1

The present application relates to a battery electrode sheet and a manufacturing method therefor, a battery, and an electrical apparatus. The battery electrode sheet comprises a current collector and an active layer provided on the surface of the current collector; the component of the active layer comprises an active material; and the volume average particle size of the active material is D, the surface roughness Ra of the current collector is greater than or equal to 0.5 µm, and the following relation is satisfied: Ra/D ≥ 0.15.

CUTTING APPARATUS USING LASER

Resumen de: EP4647205A1

A laser cutting apparatus according to an embodiment of the present disclosure is an apparatus which cuts a material for secondary battery with a laser, the apparatus comprising: a first laser light source that emits a first laser for cutting the material for secondary battery material; and a second laser light source that emits a second laser for heating a portion where the material is cut, wherein the first laser and the second laser are synchronized and irradiated onto the material in a state where optical paths are combined into one.

TEMPERATURE CONTROL SYSTEM

Resumen de: EP4647689A1

A temperature control system includes a mechanism configured to circulate air between a freezing refrigeration chamber (3a) in a moving body (1) and a battery mounting space (50a) in which a battery (B) is mounted. The mechanism includes a circulation passage (60) configured to send air in the freezing refrigeration chamber (3a) to the freezing refrigeration chamber (3a) after the battery mounting space (50a).

APPARATUS FOR COATING A SHEET-LIKE CARRIER MATERIAL WITH A COATING MATERIAL

Resumen de: WO2024146673A1

The invention relates to an apparatus for coating a sheet-like carrier material (1) with a conductive or ceramic slurry (3), the apparatus having a continuously rotating microgravure roll (2) which is designed to transfer the conductive or ceramic slurry over the circumference (21) of the microgravure roll onto the sheet-like carrier material transported in a feed direction (11). According to the invention, the apparatus has a pressure chamber doctor blade (4) which is designed to transfer the conductive or ceramic slurry under positive pressure onto the circumference of the microgravure roll. The invention also relates to an assembly for producing a separator film.

LITHIUM HYDROXIDE-BASED POWDER FOR USE IN PREPARING A LITHIUM COMPOSITE OXIDE, COMPOSITION COMPRISING THE SAME AND A TRANSITION-METAL HYDROXIDE OR OXYHYDROXIDE, AND METHOD OF MANUFACTURING THE SAME

Resumen de: WO2024146901A1

The present invention relates to a lithium hydroxide-based powder for use in preparing a lithium composite oxide, wherein the lithium hydroxide-based powder has a span of at most 5.0, the span being defined as (D90-D10)/D50, and D10, D50, and D90 being defined as particle sizes at 10%, 50%, and 90% of cumulative volume% distribution when measured by laser scattering method, respectively.

A METHOD OF THERMAL MANAGEMENT OF A BATTERY

Resumen de: CN120435786A

A thermal management method of a battery wherein the battery comprises at least one cell, and wherein a heating device is configured to heat the battery in response to a heating instruction. The method comprises the following steps: determining the charge state of the battery cell and the battery cell current of the battery cell; a first value of a first parameter of the heating device; a reference cell temperature of the cell; the maximum battery cell temperature and the minimum battery cell temperature of the battery cell are obtained. Under the condition that the maximum battery cell temperature is lower than a first threshold temperature; the minimum cell temperature of the cell is lower than a second threshold temperature; the charge state of the battery cell is higher than a charge state threshold value; the method also includes instructing a heating device to heat the electrical core.

BATTERY MODULE AND BATTERY PACK COMPRISING SAME

Resumen de: EP4648188A1

The present disclosure relates to a battery module and a battery pack comprising the same, and more particularly, to a battery module that may be applied to types of vehicles that need batteries capable of bottom venting and top cooling and a battery pack comprising the same.The battery module according to the present disclosure includes a battery cell assembly formed by stacking a plurality of battery cells, a heat dissipation layer disposed on a top side of the battery cell assembly and a busbar frame covering a first side where a lead of the battery cell assembly protrudes and a bottom side of the battery cell assembly.

INTER-MODULE BUSBAR

Resumen de: EP4648208A1

The present invention relates to an inter-module busbar, and particularly, the present invention provides a secondary battery including: a conductive unit that electrically connects a plurality of objects to each other; a first insulation layer that surrounds the conductive unit; and a second insulation layer that surrounds the first insulation layer, wherein a discharge line, which communicates with the outside and is provided to discharge a gas, is defined in the first insulation layer.

BATTERY CELL, BATTERY, AND ELECTRICAL DEVICE

Resumen de: EP4648187A1

This application provides a cell, a battery, and an electric device, and relates to the field of batteries. The cell includes a can and a guard. The can includes a case and an end lid. The case has an opening. The end lid is connected to the case and closes the opening. The end lid is connected to the case to form a connecting portion. The guard is arranged on an outer surface of the can and covers at least a part of the connecting portion. The cell has the guard arranged thereon, where the guard covers at least a part of the connecting portion. The guard can prevent liquid from leaking from the connecting portion to some extent, and lower a liquid leakage speed, thereby improving safety of the cell to some extent.

ASSEMBLY COMPRISING A HEAT EXCHANGER

Resumen de: CN120419018A

The invention relates to an assembly (1), in particular for a vehicle, comprising:-a first sub-assembly (100) configured for the circulation of a first heat transfer fluid, in particular water-based, comprising a fluid-functional component dedicated for the circulation of the first heat transfer fluid,-a second sub-assembly (100) configured for the circulation of a second heat transfer fluid, in particular water-based, a valve or pump (48); -a second sub-assembly (200) configured for the circulation of a second heat transfer fluid, in particular a dielectric fluid, comprising a fluid-functional component, in particular a valve or a pump, dedicated to the circulation of the second heat transfer fluid, the second sub-assembly being attached to the first sub-assembly; -a fluid junction (300) between the first sub-assembly and the second sub-assembly, the fluid junction being configured to allow the first heat transfer fluid to flow from the first sub-assembly (100) to the second sub-assembly (200), the first sub-assembly is configured to permit heat exchange between the first heat transfer fluid and the second heat transfer fluid in a heat exchanger belonging to the second sub-assembly.

ADVANCED ANISOTROPIC 3D CURRENT COLLECTOR WITH TAILORED ELECTRON TORTUOSITY OPTIMIZED TOWARDS THE DIRECTION OF TABS

Resumen de: AU2023432067A1

Embodiments are disclosed related to a current collector comprising a porous, freestanding, three-dimensional structure and at least one current collector tab. The at least one tab and the three-dimensional structure are connected. The three- dimensional structure comprises at least one layer that is formed of a one-dimensional (1D) nanomaterial, a two-dimensional (2D) nanomaterial, or mixtures thereof, and wherein the nanomaterial in said layer is aligned towards the at least one tab.

ROASTING FURNACE, SYSTEM FOR PREPARING LITHIUM BATTERY OXIDE PRECURSOR, AND LITHIUM BATTERY MATERIAL PRECURSOR AND PREPARATION METHOD THEREFOR AND USE THEREOF

Resumen de: EP4647400A1

The present disclosure relates to the technical field of lithium batteries. Provided in the present disclosure are a roasting furnace, a system for preparing a lithium battery oxide precursor, and a lithium battery material precursor and a preparation method therefor and the use thereof. By means of atomization feeding at the bottom of the roasting furnace, after a reaction is conducted in the roasting furnace from bottom to top, a product is output from a particle outlet in the top via negative pressure at the top of the furnace. Since a gas carries the product out from the top of the furnace, the present disclosure, compared with a device that discharges materials from the bottom thereof, achieves long residence time at a pyrolysis temperature, which is beneficial for improving the crystallinity of the product, and the particles are output from the top of the furnace along with the gas, such that the blockage of an atomizer due to the flowing of the particles can be prevented, and the operation stability of the device is improved. In addition, the roasting furnace provided by the present disclosure can further adjust the residence time by adjusting and controlling the negative pressure; and compared with traditional feeding and discharging modes, the temperature of a lower area in the roasting furnace is easier to control, and accurate temperature control, energy conservation and consumption reduction are facilitated.

BATTERY MODULE AND METHOD FOR CONTROLLING BATTERY MODULE

Resumen de: EP4648192A1

The battery module according to an embodiment of the present invention may comprise: a housing; a plurality of secondary batteries contained in the housing; a fluid provided so that the plurality of secondary batteries are immersed in the housing; and a pressurizing unit provided to pressurize the fluid.

CHARGING METHOD AND ELECTRONIC DEVICE

Resumen de: EP4648251A1

Embodiments of this application are applicable to the field of charging technologies, and provide a charging method and an electronic device. A to-be-charged apparatus sends first information including remaining electric quantity information of the to-be-charged apparatus to a charging apparatus. The charging apparatus determines a target charging policy from a plurality of candidate charging policies based on the first information. The charging apparatus outputs electric energy to the to-be-charged apparatus according to the target charging policy. In this way, the charging apparatus may flexibly determine the target charging policy from the plurality of candidate charging policies according to the remaining electric quantity information of the to-be-charged apparatus, and then output the electric energy to the to-be-charged apparatus according to the target charging policy. To be specific, charging policies of the to-be-charged apparatus are richer, and charging flexibility of the to-be-charged apparatus is improved.

BATTERY HOUSING AND VENTING ELEMENTS

Resumen de: CN120476511A

A battery housing is provided comprising a housing wall comprising an impermeable substrate and at least one aperture disposed in the impermeable substrate, the or each aperture extending from a first side of the impermeable substrate to a second side of the impermeable substrate, and the maximum width of the or each hole is 0.1 mu m to 100 mu m, and wherein the ratio of the carbon dioxide (CO2) transmission rate to the water vapor (moisture) transmission rate of the housing wall is at least 2 using the test method described herein.

BATTERY MANAGEMENT DEVICE AND SERVER, AND BATTERY SYSTEM COMPRISING SAME

Resumen de: EP4647789A1

A battery management apparatus according to an embodiment disclosed herein includes a data management unit configured to manage resistance data related to a bus bar of each of a plurality of battery banks included in a battery module and a controller configured to measure a voltage of each of the plurality of battery banks and calculate a corrected voltage of each of the plurality of battery banks by reflecting the resistance data related to the bus bar of each of the plurality of battery banks to a voltage of each of the plurality of battery banks.

NONAQUEOUS ELECTROLYTE, NONAQUEOUS ELECTROLYTE BATTERY, AND COMPOUND

Nº publicación: EP4648166A1 12/11/2025

Solicitante:

CENTRAL GLASS CO LTD [JP]
Central Glass Company, Limited

Resumen de: EP4648166A1

A nonaqueous electrolyte solution capable of exhibiting an excellent initial input-output characteristic when used for a nonaqueous electrolyte solution battery, a nonaqueous electrolyte solution battery capable of exhibiting an excellent initial input-output characteristic, and a compound suitably used for the nonaqueous electrolyte solution are provided. A nonaqueous electrolyte solution containing (I) at least one compound selected from the group consisting of a compound represented by the general formula (1), a compound represented by the general formula (2), a compound represented by the general formula (3), and a compound represented by the general formula (4) described in the specification, (II) a solute, and (III) a nonaqueous organic solvent, a nonaqueous electrolyte solution battery containing the nonaqueous electrolyte solution, and the compound represented by any of the general formulae (1) to (4) described in the specification.