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APPARATUS AND METHODS FOR TESTING ELECTROCHEMICAL SYSTEMS

Resumen de: US20260243841A1

0000 Example embodiments of the described technology provide an apparatus for testing an electrochemical system. The apparatus may comprise a testing module electrically coupled to the electrochemical system. The testing module may comprise a discharge circuit configured to draw current from the electrochemical system at a plurality of different rates. The discharge circuit may be configured to continuously draw current from the electrochemical system once a test of the electrochemical system is commenced. The apparatus may also comprise a measurement module which may be configured to measure voltage across terminals of the electrochemical system and current drawn from the electrochemical system during the test. The apparatus may also comprise a processor. The processor may be configured to compensate at least in part the measured voltage for voltage drift which was generated by continuously drawing current from the electrochemical system. The processor may also be configured to compute a state of health of the electrochemical system based at least in part on the compensated voltage and the measured current.

POSITIVE ACTIVE MATERIAL AND ELECTROCHEMICAL DEVICE CONTAINING SAME

Resumen de: US20260245892A1

A positive active material, containing a compound with a P63mc space group. In an XRD pattern of the positive active material, a (002) crystal plane of the compound with the P63mc space group is located between 17.5° and 19°, and a full width at half maximum of the (002) crystal plane falls between 0.05 and 0.1. The positive active material at a high voltage of 4.8 V exhibits a considerable discharge capacity and desirable structural reversibility and cycle stability.

ASYNCHRONOUS CONVERSION OF METALS TO METAL CERAMICS

Resumen de: US20260246080A1

A metal-ceramic article and method for creating the same is disclosed in which the article has undergone machining to remove outer surface volume. The article is then treated to enhance the characteristics of at least the machined surface to be comparable to the original surface. In the disclosed application the machining does not extend to an inner layer of the article in which the article consists purely of a metal.

HIGH GREEN DENSITY CERAMICS FOR BATTERY

Resumen de: US20260245957A1

Set forth herein are processes and materials for making ceramic thin green tapes by casting ceramic source powders and precursor reactants, binders, and functional additives into unsintered thin green tapes in a non-reactive environment.

Battery Module and Battery Pack Including the Same

Resumen de: US20260246011A1

0000 A battery pack includes: a battery cell stack in which a plurality of battery cells are stacked; a busbar frame covering at least a portion of at least one surface of the battery cell stack; a sensing member connected to the busbar frame; and side surface plates covering at least a portion of respective side surfaces of the battery cell stack, wherein each of the side surface plates includes a mounting part formed on an outer surface thereof, wherein a lower surface of the battery cell stack is opened such that the lower surface is not covered by a frame of the battery pack, and wherein outermost battery cells of the plurality of battery cells and an inner surface of the side surface plates are coupled to each other, respectively.

BATTERY AND METHOD FOR PRODUCING SAME

Resumen de: US20260246033A1

Disclosed is a battery including: a battery can including a cylinder portion including an opening edge portion at one end portion thereof and a bottom portion closing the other end portion of the cylinder portion; an electrode body housed in the cylinder portion; and a sealing member fixed to the cylinder portion to seal an opening of an opening edge portion. The sealing member includes a lid portion covering the opening of the opening edge portion. A first engagement portion is formed in the end portion of the cylinder portion on the opening edge portion side, and a second engagement portion is formed in an end portion of the lid portion on an outer circumferential side. A first surface of the first engagement portion and a second surface of the second engagement portion are bonded, with the first surface and the second surface overlapping each other.

BATTERY CELL AND METHOD OF MANUFACTURING THE SAME

Resumen de: US20260245976A1

The present invention provides a battery cell and a method of manufacturing the same. In particular, since a case of the battery cell may have poor thermal resistance, the present invention provides a battery cell capable of preventing a coating layer including an insulation layer in the case and an electrode assembly from being damaged by heat, and releasing the heat generated in the battery.

PROCESSES FOR PREPARING HYDROXIDES AND OXIDES OF VARIOUS METALS AND DERIVATIVES THEREOF

Resumen de: AU2026210821A1

There is provided a process for preparing a metal hydroxide comprising (i) at least one metal chosen from nickel and cobalt and optionally (ii) at least one metal chosen from manganese, lithium and aluminum, said process comprising: reacting a metal sulfate comprising (i) at least one metal chosen from nickel and cobalt and optionally (iii) at least one metal chosen from manganese and aluminum with sodium hydroxide and optionally a chelating agent in order to obtain a solid comprising said metal hydroxide and a liquid comprising sodium sulfate; separating said liquid and said solid from one another to obtain said metal hydroxide; submitting said liquid comprising sodium sulfate to an electromembrane process for converting said sodium sulfate into sodium hydroxide; and reusing said sodium hydroxide obtained by said electromembrane process for reacting with said metal sulfate. ul u l

ELECTRONIC CIGARETTE POWER SUPPLY PORTION

Resumen de: US20260241120A1

0000 Aspects of the instant disclosure relate to electronic cigarettes; more particularly, to electronic cigarettes including a power supply portion. In various embodiments, the eCig power supply portion includes a sub-assembly housing substantially containing a battery, an airflow sensor, and controller circuitry. Aspects of the disclosure are further directed to an eCig power supply portion further including a hemicylindrical port and/or electrical contacts aligned along a longitudinal axis of the power supply portion.

MANUFACTURING LINE, PROCESS, AND SINTERED ARTICLE

Resumen de: US20260243510A1

0000 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.

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

Resumen de: EP4794072A1

0001 A battery cell (20), a battery (100), an electric device, and an energy storage apparatus. The battery cell (20) comprises a casing (21). The casing (21) comprises a shell (211) and an end cover (212). An opening (211a) is formed in the shell (211). The shell (211) comprises a first wall (24). The first wall (24) comprises a first opening part (241) and a first body part (242) sequentially arranged in a first direction (Z). The first direction (Z) is parallel to the thickness direction of the end cover (212). The first opening part (241) is close to an opening (211a) with respect to the first body part (242). The end cover (212) is welded to the first opening part (241) to seal the opening (211a). The first opening part (241) comprises a plurality of first thickening areas (241a) and at least one first transition area (241b). The plurality of first thickening areas (241a) are arranged at intervals in a circumferential direction of the opening (211a). Two adjacent first thickening areas (241a) are connected by means of the first transition area (241b). The maximum thickness of the first thickening areas (241a) is greater than the thickness of the first body part (242), and the maximum thickness of the first thickening areas (241a) is greater than the thickness of the first transition area (241b). The present application can improve the reliability of the battery cell (20).

BATTERY, ELECTRIC DEVICE AND ENERGY STORAGE DEVICE

Resumen de: EP4794102A1

0001 A battery (10), an electric device and an energy storage device. The battery (10) comprises: a battery cell (20); a busbar component (12), wherein the busbar component (12) is used for electrically connect to an electrode terminal (214) of the battery cell (20); and an insulating component (13), the insulating component (13) comprising a main body portion (131) and an extending portion (132) that are connected to each other, wherein the main body portion (131) is attached to the surface of the busbar component (12) that is away from the battery cell (20), and the extending portion (132) is located at an end of the busbar component (12) that is close to the battery cell (20). The extending portion (132) is closer to a first surface relative to the main body portion (131), wherein the first surface is the surface of the battery cell (20) that is close to the electrode terminal (214). In this way, when thermal runaway occurs in the battery cell (20), the configuration of the insulating component (13) can reduce the impact of high-temperature gas and conductive particles which are released by the battery cell (20) on the busbar component (12), thereby reducing the influence on the performance of the busbar component (12), such that the usage performance of the battery (10) is improved.

BATTERY PACK, STRUCTURE, AND METHOD FOR MANUFACTURING MICA PLATE

Resumen de: EP4794087A1

0001 Provided is a battery pack including a mica plate that is resistant to damage and is lightweight. The battery pack of the present invention includes a module with a plurality of battery cells; a case containing the module; and a mica plate disposed between the module and the case and having a first main face and a second main face opposite to the first main face, the battery pack further including a fixing member to fix the mica plate, the mica plate having a first fixing member hole penetrating from the first main face to the second main face, at least one of the module or the case being provided with a connecting member having a second fixing member hole, the fixing member including a head and a body extending from the head, the head of the fixing member being on the first main face of the mica plate, the body of the fixing member passing through the first fixing member hole into the second fixing member hole, thereby fixing the mica plate, the head, in a planar perspective view of the mica plate, covering at least a part of an outline of the first fixing member hole and overlapping the mica plate, an overlapping area, denoted as area S 1, between the head and the mica plate being not less than 5.8 × 10<-6> times an area S2 of the mica plate.

CYLINDRICAL BATTERY AND ELECTRONIC DEVICE

Resumen de: EP4794050A1

0001 This application discloses a cylindrical battery and an electronic device. The cylindrical battery includes a housing and an electrode assembly. The electrode assembly is disposed in the housing. The electrode assembly includes a first electrode plate. The first electrode plate includes a first blank foil portion. The first blank foil portion is formed of a first part and a second part. The first part extends along a winding direction of the electrode assembly. The second part is formed by bending the first blank foil portion toward such a direction that a terminating end of the first electrode plate is closer to a first end wall. The second part is connected to the first part and the first end wall of the housing. A region of connection between the second part and the first end wall is a first region. A first edge is formed at a junction between the first part and the second part. The first part includes a second edge and a third edge. The first edge intersects the third edge to form a first fold point. A minimum distance between the first end wall and the second end wall is H, an inner radius of a circumferential wall of the housing is R, and a minimum distance from the first fold point to the first region is L<1>, satisfying H + R ≤ L<1>. By providing the second part, this application improves the lifespan of the cylindrical battery.

SECONDARY BATTERY AND ELECTRIC APPARATUS

Resumen de: EP4794048A1

0001 The present application provides a secondary battery and an electric apparatus, the secondary battery including an electrode assembly, and the electrode assembly being a jelly-roll structure, where the electrode assembly includes a positive electrode plate, a negative electrode plate, a first separator, and a second separator; the first separator includes a first base film and a first ceramic coating, the first ceramic coating being disposed on at least one side of the first base film, the first ceramic coating including first ceramic particles, and the first ceramic particles including at least one of aluminum oxide, zirconium dioxide, titanium dioxide, or silicon dioxide; and the second separator includes a second base film and a second ceramic coating, the second ceramic coating being disposed on at least one side of the second base film, the second ceramic coating including second ceramic particles, and the second ceramic particles including boehmite. Through the above disposition, the secondary battery can balance energy density, cycling performance, and safety performance.

IMMERSION-COOLED BATTERY MODULE, AND BATTERY PACK AND VEHICLE INCLUDING SAME

Resumen de: EP4794109A2

0001 An immersion cooled battery module according to an embodiment of the present disclosure includes a plurality of sub battery modules; a module case having an opening in at least one end, and accommodating the plurality of sub battery modules and a cooling liquid in an internal space connected to the opening; a sealing cover air-tightly covering the opening; a plurality of circuit boards corresponding to the plurality of sub battery modules, received in the internal space and configured to sense electrical signals related to the plurality of sub battery modules; and a waterproof connector coupled to the sealing cover, and configured to transmit the electrical signals respectively sensed by the plurality of circuit boards to an external device outside of the module case.

SLURRY, POSITIVE ELECTRODE COMPOSITION, BATTERY, AND METHOD FOR PRODUCING SLURRY

Resumen de: EP4794018A1

A slurry containing carbon black, a dispersant, and a dispersion medium, wherein, in a volume-based particle size distribution of the carbon black, a median diameter (D50) is at least 0.5 µm and at most 0.8 µm, a difference (D90 - D10) between a cumulative 90% diameter (D90) and a cumulative 10% diameter (D10) is less than 2 µm, and a total amount of particles having a particle diameter larger than 5 µm is less than 1%, and a ratio (D50'/D50) of a median diameter (D50') of the carbon black when the slurry has been placed at rest for 4 weeks to D50 is less than 1.3.

NEGATIVE ELECTRODE ACTIVE MATERIAL AND METHOD FOR PRODUCING SAME

Resumen de: EP4794024A1

0001 The present invention is a negative electrode active material containing negative electrode active material particles, in which the negative electrode active material particles contain a porous carbon structure, silicon and silicon oxide are dispersed in an interior of the porous carbon structure, a low-valent nano silicon oxide in an amorphous state is dispersed at least in a surface layer portion of the interior of the porous carbon structure, the low-valent nano silicon oxide is SiOx, where "x" is less than 1.0, and nano silicon having a crystalline structure is dispersed in the interior of the porous carbon structure, at least in a deep layer portion that is deeper than the low-valent nano silicon oxide. This provides the negative electrode active material capable of increasing capacity thereof while maintaining battery characteristics.

NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND ELECTRODE USING SAME

Resumen de: EP4794029A1

0001 A nonaqueous electrolyte secondary battery includes a first electrode, a second electrode, a nonaqueous electrolyte, and a separator provided between the first electrode and the second electrode. The first electrode includes a first current collector and a first active material layer supported on the first current collector. The first active material layer contains a first active material, a binder, and an additive. The additive is a polymer material having a melting point or thermal decomposition temperature of 200°C or higher and 500°C or lower. In a cross section of the first active material layer, the polymer material forms a plurality of island-shaped regions and is dispersed therein. The aspect ratio: DL/DW is 1.5 or less, where DL represents a length of a major axis of particles of the polymer material, the major axis defining a maximum particle diameter thereof, and DW represents a length of a minor axis perpendicular to the major axis at a midpoint thereof.

SEPARATOR, ELECTROCHEMICAL APPARATUS WITH SEPARATOR AND ELECTRICAL APPARATUS

Resumen de: EP4794046A1

0001 A separator includes a base film and an organic coating disposed on at least one surface of the base film. In a 10µm×5µm region of the organic coating, based on a mass of the organic coating, a mass percentage of a carbon element in the organic coating is W1, a mass percentage of a fluorine element in the organic coating is W2, and 0.45 ≤ W1/W2 ≤ 6. The separator further includes an inorganic coating, the inorganic coating is disposed between the base film and the organic coating, the inorganic coating has a thickness of d3, the base film has a maximum pore size of r1, and 0.01 ≤ r1/d3 ≤ 0.21.

ACCUMULATOR COVER FOR AN ACCUMULATOR, AN ACCUMULATOR EQUIPPED THEREWITH AND A METHOD FOR PRODUCING THE ACCUMULATOR COVER

Resumen de: WO2025076568A2

The invention relates to an accumulator cover (3) for an accumulator (1). The accumulator cover (3) comprises: - a cover plate (9) with an outer side (11) and an inner side (13) and a through-opening (16) that penetrates the cover plate (9) between the outer side (11) and the inner side (13); - a rivet (17) that projects through the through-opening (16) of the cover plate (9); - a pole plate (18), wherein the pole plate (18) is arranged on the outer side (11) of the cover plate (9) and is electrically conductively coupled to the rivet (17); - a separating plate (19), wherein the separating plate (19) is arranged on the outer side (11) of the cover plate (9) between the pole plate (18) and the cover plate (9). A current collector (20) is designed as a component independent of the rivet (17), wherein the current collector (20) is electrically conductively coupled to the rivet (17).

HEAT DISSIPATION SYSTEM AND ENERGY STORAGE SYSTEM

Resumen de: EP4794462A1

0001 This application provides a heat dissipation system and an energy storage system. The heat dissipation system includes a container body and a heat management module, where the heat management module is disposed in the container body. A partition plate in the container body separates the container body into a temperature control chamber and a control chamber. The temperature control chamber is located above the control chamber. The heat management module includes at least two compressors, at least two water pumps, a plate heat exchanger component, and an electric control box that are located in the control chamber. The compressors and the electric control box are sequentially disposed in a width direction, the plate heat exchanger component and the water pumps are sequentially disposed in the width direction, and the electric control box and the water pumps are disposed sequentially in a length direction. The compressors and the water pumps are separately connected to the plate heat exchanger component, and the compressors and the water pumps are separately connected to the electric control box. The heat management module further includes a liquid cooling unit located in the temperature control chamber, and the plate heat exchanger component and the electric control box are separately connected to the liquid cooling unit. The heat dissipation system in this application can implement water-electricity isolation and a multi-heat management system, so that heat management

FE-NI ALLOY CURRENT COLLECTOR HAVING LOW RESISTANCE MULTILAYER STRUCTURE AND SECONDARY BATTERY COMPRISING SAME

Resumen de: EP4794033A1

0001 The present invention relates to a current collector that has a Fe-Ni alloy formed on at least one surface of a core part composed of copper foil and which exhibits low resistance and high strength while improving corrosion resistance when used as a current collector of a secondary battery to which lithium ions and a lithium metal negative electrode or a sulfide-based solid electrolyte are applied.

BATTERY BOX, MANUFACTURING METHOD FOR BATTERY BOX, BATTERY AND ELECTRIC DEVICE

Resumen de: EP4794081A1

A battery box (100), a manufacturing method for the battery box (100), a battery (1100) and an electric device, the battery box (100) comprising a first box body (110). The first box body (110) comprises a plate component (111), one side of the plate component (111) being provided with an accommodating space (1101) for accommodating a battery cell (200). The plate component (111) comprises a plate body portion (1111) and a first bent portion (1112), wherein the first bent portion (1112) is bent towards the accommodating space (1101) from the edge of the plate body portion (1111). The fillet radius at the bend of the edge of the plate component (111) is small, so that the width dimension of the first box body (110) can be reduced, thereby reducing the width dimension of the battery box (100); thus, the space occupied by the battery (1100) in the electric device can be reduced, facilitating improvement to the structural compactness and usage performance of the electric device.

METHOD OF MAKING A PRECURSOR FOR A CATHODE ACTIVE MATERIAL

Nº publicación: EP4791687A1 19/08/2026

Solicitante:

BASF SE [DE]
BASF SE

Resumen de: WO2025078192A1

The present invention is directed towards a process for making a particulate (oxy)hydroxide or oxide of TM wherein TM comprises nickel and one transition metal selected from Co and Mn and, optionally, at least one further metal selected from Ti, Zr, Mo, W, Al, Mg, Nb, and Ta, and wherein said process comprises the steps of: (a) Providing an aqueous solution (a) containing water-soluble salts of Ni and lithium and of at least one transition metal selected from Co and Mn, and, optionally, at least one further metal selected from Ti, Zr, Mo, W, Al, Mg, Nb, and Ta, and an aqueous solution (P) containing sodium or potassium hydroxide and, optionally, an aqueous solution (y) containing ammonia, wherein the amount of lithium is in the range of from 0.01 to 2.5 mol-% with respect to TM, (a) combining a solution (a) and a solution (|3) and, if applicable, a solution (y) at a pH value in the range of from 10.0 to 12.7 in one or more sub-steps, thereby creating solid particles of a hydroxide containing nickel, said solid particles being slurried, (b) removing the particulate (oxy)hydroxide of TM by a solid/liquid separation method, followed by drying.