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BATTERY CELL, BATTERY DEVICE, AND ELECTRIC DEVICE

Resumen de: WO2026044746A1

A battery cell, a battery device, and an electric device, relating to the technical field of batteries. At least one end of a casing in a first direction is provided with an opening. An electrode assembly is at least partially accommodated in the casing. At least part of a positive electrode sheet and at least part of a negative electrode sheet of the electrode assembly are stacked in a second direction, and the second direction is parallel to a thickness direction of a first side wall portion and intersects with the first direction. An end cover closes the opening and is welded to the first side wall portion to form a first connecting portion. The first side wall portion comprises a first region, and the first region is located on the side of the first connecting portion facing the electrode assembly. The ratio of the number of first dies in the first region to the number of all dies in the first region is greater than 50%, and the ratio of the dimension of the first dies extending in the first direction to a maximum dimension of the first dies in the second direction ranges from 0.2 to 5. The cracking of the first connecting portion is reduced by means of the first region.

ELECTROCHEMICAL APPARATUS AND ELECTRONIC APPARATUS

Resumen de: WO2026044712A1

The present application provides an electrochemical apparatus and an electronic apparatus. The electrochemical apparatus of the present application comprises a positive electrode sheet and an electrolyte. The electrolyte comprises a compound represented by formula (I), and the positive electrode sheet contains a lithium transition metal composite oxide, which has a P6(3)mc crystal structure. In the present application, by means of a synergistic effect of the compound represented by formula I in the electrolyte and the lithium transition metal composite oxide having a P63mc crystal structure in the positive electrode sheet, cycle capacity attenuation of the electrochemical apparatus under a high voltage can be significantly mitigated, and growth in the thickness of the electrochemical apparatus during cycling can be significantly inhibited.

ELECTROCHEMICAL APPARATUS AND ELECTRONIC DEVICE

Resumen de: WO2026044706A1

The present application discloses an electrochemical apparatus and an electronic device. A positive electrode active material layer comprises a metal element M, wherein the metal element M comprises at least one of Ca and W. An electrolyte comprises a compound of formula (I). By means of a combination of the compound of formula (I) in the electrolyte and the metal element M in the positive electrode active material, and by selecting content A of the compound of formula (I) and content C of the metal element M to satisfy the conditional expression: 0.1≤A*C/100≤400, the calendar life of the electrochemical apparatus in a high-temperature environment can be improved, and the impedance increase of the electrochemical apparatus in the high-temperature environment during the entire service life can also be mitigated.

ELECTROCHEMICAL APPARATUS AND ELECTRONIC DEVICE

Resumen de: WO2026044703A1

The present application discloses an electrochemical apparatus and an electronic device. An electrolyte of the electrochemical apparatus comprises the compound of formula (I). A positive electrode active material of a positive electrode sheet comprises Mn and Ni. By means of a combination of the compound of formula I in the electrolyte and the metal elements Mn and Ni in the positive electrode active material, and choosing to make the content A of the compound of formula I and the content C of the metal elements Mn and Ni satisfy the conditional expressions 0.1≤A*C/1000≤40 and 500 ppm≤C≤5000 ppm, not only can the initial impedance of the electrochemical apparatus be improved, but the impedance growth rate of the electrochemical apparatus during high-temperature charging-discharging cycles can also be improved.

SECONDARY BATTERY AND BATTERY PACK INCLUDING THE SAME

Resumen de: US20260066498A1

A secondary battery and a battery pack are disclosed. A secondary battery includes a case, an electrode assembly accommodated in the case, a cap plate including a first surface facing the electrode assembly and a second surface opposite the first surface, a terminal protruding outward from the cap plate and connected to the electrode assembly, and a gasket between the cap plate and the terminal and including a first end portion in contact with the cap plate and a second end portion in contact with the terminal, and a creepage distance of the gasket is greater than a distance between the first end portion and the second end portion.

BATTERY RETAINING DEVICE

Resumen de: US20260066414A1

A device includes a base and a depressible cover. The base defines a battery opening in which to receive a battery having the form factor of a coin cell The base includes a retainer located proximate to the battery opening. The depressible cover is disposed in the battery opening and is secured in place against the retainer to prevent removal of the battery from the base while the cover is coupled to the base. The cover includes a detent and a body portion, wherein the cover is releasably secured to the base upon engagement of the body portion with the retainer and engagement of the detent with a shoulder of the base.

SELF-SUPPORTING CERAMIC SEPARATOR FOR ELECTROCHEMICAL DEVICE AND ELECTROCHEMICAL DEVICE COMPRISING SAME

Resumen de: US20260066462A1

A self-standing ceramic separator and an electrochemical device including the same are provided. The self-standing ceramic separator includes first inorganic particles having a sheet shape and second inorganic particles, which is a zeolite-based inorganic matter, in an appropriate content and arrangement, thereby having an improved heat resistance, and providing improved safety of a battery by preventing an electrical short-circuit between electrodes and a high cell lifespan characteristic.

BATTERY ARRAY END PLATE DESIGNS

Resumen de: US20260066418A1

Battery array end plate designs are disclosed for use within traction battery packs. An exemplary battery array of the traction battery pack may include features that facilitate a battery array assembly process. These features include channels for accommodating a compression fixture, interlocking features (ribs, bumps, pins, etc.) for engaging corresponding features of an array housing, and angled walls for compressing an upper portion of a cell stack during the battery array assembly process.

SECONDARY BATTERY AND METHOD FOR MANUFACTURING SAME

Resumen de: US20260066494A1

A secondary battery includes an electrode assembly, the electrode assembly including a plurality of stacked electrode tabs, a case with an open side, the case accommodating the electrode assembly therein, a cap assembly sealing the open side of the case, the cap assembly comprising an electrode hole, and a current collecting plate connected to the plurality of stacked electrode tabs, the current collecting plate being inserted into and passing through the electrode hole.

ELECTRODE ASSEMBLY AND SECONDARY BATTERY INCLUDING THE ELECTRODE ASSEMBLY T

Resumen de: US20260066495A1

An electrode assembly, including a first electrode including a first substrate, a first non-coated portion at an end in a longitudinal direction of the first substrate, and a first substrate tab connected to a surface of the first non-coated portion, a second electrode including a second substrate, a second non-coated portion at an end in a longitudinal direction of the second substrate, and a second substrate tab connected to a surface of the second non-coated portion, and a separator between the first electrode and the second electrode, wherein the first electrode, the separator, and the second electrode are sequentially stacked and wound, and wherein the first substrate tab and the second substrate tab are aligned in a straight line along a cross-sectional radial direction in a wound state.

METHOD FOR HEATING A MOLTEN-SALT BATTERY TO ITS OPERATION TEMPERATURE

Resumen de: WO2026047281A1

A method for heating a molten-salt battery to its operation temperature is disclosed. The method comprises: drilling an injection borehole and a production borehole into the ground until the temperature of a bedrock surrounding the injection borehole and the production borehole is above 280 °C, and connecting the injection borehole and production borehole by a fracture system, and adding water to the injection borehole to cause a first steam stream with a temperature above 280 °C to rise from the production borehole, and adding a second steam stream with a temperature above 100 °C at the opening of the production borehole, and mixing the first steam stream and the second steam stream to obtain a third steam stream with a temperature in the range of 250 - 280 °C, and using the third steam stream to heat a molten-salt battery to its operation temperature of 250 - 280 °C.

CLIMATE CONTROLLED TRANSPORTATION-RELATED REPLACEABLE BATTERIES

Resumen de: US20260066702A1

A power system for a transport climate control system includes a battery pack that is capable of being removably attached to a chassis of the transport unit to which a transport climate control system may be disposed. A pair of wireless power transfer assemblies allows for wireless power transfer between the battery pack and the transport unit or a standalone charging bank. A power distribution unit corresponding to the transport climate control system conductively receives DC power from the vehicle-side wireless power transfer assembly and transmits the DC power to electrical components corresponding to the transport climate control system. Likewise, the power distribution unit distributes power from standard plug-in charging equipment to the wireless power transfer assembly such that at least one wireless battery pack can be charged wirelessly while on the transport unit. The battery pack can be removed for recharging and replaced at least temporarily.

SECONDARY BATTERY, BATTERY MODULE AND ELECTRONIC APPARATUS

Resumen de: US20260066358A1

A secondary battery, a battery module, and an electronic apparatus are provided. The secondary battery includes a casing and a terminal assembly. The casing includes an end wall and a side wall surrounding the end wall, and an axis of the casing is a first axis. The electrode assembly accommodated in the casing includes a positive terminal sheet, a negative terminal sheet, and a separator stacked and wound to form a wound structure. A number of turns of the negative terminal sheet is greater than 40 turns, and an axis of the wound structure is a second axis. When a state of charge (SOC) of the secondary battery is less than 5%, the second axis is located in a cylindrical region with the first axis as the axis and a diameter d1 of φ0.6 mm.

BATTERY CELL, BATTERY, ELECTRICAL APPARATUS, AND ENERGY STORAGE CABINET

Resumen de: US20260066490A1

A battery cell, a battery, an electrical apparatus, and an energy storage cabinet are disclosed. The battery cell includes a shell, multiple pole groups, and multiple electrode terminals. The shell has a wall portion, and the pole groups are received in the shell and arranged along a first direction. Each pole group includes a main body group and two tab groups, the two tab groups being spaced apart along the first direction on one side of the main body group in a second direction and having opposite polarities. The electrode terminals are disposed on the wall portion and spaced apart along the first direction. Two tab groups adjacent in the first direction from two neighboring pole groups share one electrode terminal, while the two farthest tab groups are connected to two respective electrode terminals. This configuration reduces the number of electrode terminals, optimizes production rhythm, and improves manufacturing efficiency.

Molten Lithium Metal Battery Based on Ceramic Electrolyte Sheet

Resumen de: US20260066333A1

A molten lithium metal battery based on a ceramic electrolyte sheet, comprising: a casing in the shape of the Chinese character “” and a ceramic electrolyte sheet, wherein the ceramic electrolyte sheet divides said casing into an upper part and a lower part, the upper part is a negative electrode chamber, the lower part is a positive electrode chamber, a positive electrode material is contained in the positive electrode chamber, and a lithium recess is formed in the negative electrode chamber; gas guide metal tubes, wherein the gas guide metal tubes are connected to and communicated with said casing, and openings of the air guide metal tubes are higher than the bottom surface of the ceramic electrolyte sheet; an upper cover and a negative electrode current collector, wherein the negative electrode current collector passes through the upper cover and is led out from the upper cover, the negative electrode current collector and the upper cover are sealed together by means of an insulating sealing material, the upper cover is arranged at the top of said casing and seals said casing, a negative electrode material is contained in the lithium recess, and a seal is formed between the lithium recess and said casing; and a bottom cover, wherein the bottom cover is connected to the bottom end of said casing.

NEGATIVE ELECTRODE AND PREPARATION METHOD THEREFOR, BATTERY CELL CONTAINING SAME, BATTERY, AND ELECTRIC APPARATUS

Resumen de: US20260066306A1

This application provides a negative electrode and a preparation method therefor, a battery cell containing the same, a battery, and an electric apparatus, where the negative electrode includes a negative electrode current collector and a coating disposed on at least one surface of the negative electrode current collector, the coating includes a flexible carbon material, the flexible carbon material includes micropores with a pore diameter less than or equal to 0.8 nm, a pore volume of the micropores with a pore diameter less than or equal to 0.8 nm is denoted as Vmic, a pore volume of the flexible carbon material is denoted as Vtotal, both in units of cm3/g, and Vmic:Vtotal≥65:100.

ENERGY STORAGE SYSTEM WITH AT LEAST ONE ENERGY STORAGE CELL FOR STORING ELECTRICAL ENERGY, AND METHOD FOR PRODUCING SUCH AN ENERGY STORAGE SYSTEM

Resumen de: WO2026046933A1

The invention relates to an energy storage system (1) with at least one energy storage cell (2) for storing electrical energy, wherein the energy storage cell (2) has at least one contact terminal (3), in particular in the form of a connection pole, and wherein a carrier (4), in particular in the form of a printed circuit board, is associated with the at least one energy storage cell (2), wherein the at least one contact terminal (3) of the energy storage cell (2) is galvanically connected via a solder connection in particular to a conductive track of the carrier (4), and wherein an adhesive layer (5) is formed at least partially or in some regions between the energy storage cell (2) and the carrier (4), via which adhesive layer the energy storage cell (2) is connected to the carrier (4) in an integrally bonded manner.

SECONDARY BATTERY, BATTERY PACK AND ELECTRONIC DEVICE

Resumen de: US20260066359A1

A secondary battery is provided, including an electrode assembly which includes a negative pole sheet, a first separator, a positive pole sheet, and a second separator stacked and wound in sequence. The negative pole sheet includes a negative coated area and a negative tab protruding from the negative coated area. The positive pole sheet includes a positive coated area and a positive tab protruding from the positive coated area. The negative tab and the positive tab are respectively located on two opposite sides of the electrode assembly, and a direction from the negative tab to the positive tab is a height direction. Along the height direction, an upper end of the negative coated area overhangs an upper end of the positive coated area. Along a direction away from the height direction, a lower end of the negative coated area overhangs a lower end of the positive coated area.

ELECTROLYTE, ELECTROCHEMICAL APPARATUS, AND ELECTRONIC APPARATUS

Resumen de: US20260066346A1

An electrolyte includes lithium tetrafluoroborate and a compound of Formula Iwhere a mass percentage A of the lithium tetrafluoroborate satisfies 0.1%≤A≤2%, and a mass percentage B of the compound of Formula I satisfies 0.010%≤B≤20%.

ELECTROLYTE, ELECTROCHEMICAL APPARATUS, AND ELECTRONIC DEVICE

Resumen de: US20260066349A1

An electrolyte includes a compound of formula Iand a compound of formula IIBased on a mass of the electrolyte, a mass percentage A of the compound of formula I satisfies 0.01%≤A≤70%, and a mass percentage B of the compound of formula II satisfies 2.0%≤B≤20%.

AEROSOL-GENERATING SYSTEM WITH ADHESIVE BETWEEN ELECTRODE UNIT AND ENVELOPE

Resumen de: US20260066404A1

An aerosol-generating system is provided, including: a battery including an electrode component and a packaging for the electrode component; and an adhesive element provided in between the electrode component and the packaging, the packaging including a packaging layer and a protective layer, the protective layer being arranged in between the packaging layer and the electrode component, the protective layer being electrically non-conductive, the adhesive element being in contact with the protective layer, the protective layer being provided with an adhesive or including adhesive, and the adhesive of the protective layer being configured to increase its adhesive force during heating in manufacturing of the battery from an initial value that is lower than an adhesive force of the adhesive element. A method of manufacturing a battery for an aerosol-generating system is also provided.

COOLING PLATE, BATTERY PACK, AND ELECTRIC DEVICE

Resumen de: US20260066387A1

Provided are a cooling plate, a battery pack, and an electric device. The cooling plate has at least one flow channel. The at least one flow channel includes a first flow channel. The first flow channel has a cross section in a shape of a non-circle. In the case that the cooling plate is subjected to an external pressure, the shape of the cross section of the first flow channel changes to enable a volume of the first flow channel to be increased.

METHOD FOR MANUFACTURING AN ELECTROCHEMICAL POUCH CELL

Resumen de: WO2026047609A1

The invention relates to a method for manufacturing a pouch cell, which method comprises the following steps: - forming a first cavity (11) and a second cavity (12) in a multilayer film (20), the first cavity and the second cavity having a common edge (13) incorporating a fold line (14) allowing the first cavity (11) to be folded over the second cavity (12) so as to form a pouch capable of receiving a stack of electrodes; - forming a first semi-cylindrical gutter (15) in the edge of the first cavity (11) and a second semi-cylindrical gutter (16) in the edge of the second cavity (12) such that, when the first cavity (11) is folded over the second cavity (12), the second gutter (16) and the first gutter (15) together form a duct (17) capable of receiving a cable extending into the pouch.

ELECTROCHEMICAL CELL

Resumen de: WO2026047610A1

An electrochemical cell is described. The electrochemical cell comprises a pouch, and a stack received in the pouch, the stack having a laminate structure. The laminate structure comprises: a plurality of stacked electrode layers; and a separator layer interposed between each pair of adjacent electrode layers. At least one separator layer is bonded to an inner layer of the pouch by a first separator-pouch seal. A method of manufacturing the electrochemical cell is also described.

MOLTEN-SALT-ASSISTED VALENCE-GRADIENT-DOPED MODIFIED SINGLE-CRYSTAL POSITIVE ELECTRODE MATERIAL, AND PREPARATION METHOD THEREFOR AND USE THEREOF

Nº publicación: WO2026044981A1 05/03/2026

Solicitante:

KUNMING UNIV OF SCIENCE AND TECHNOLOGY [CN]
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Resumen de: WO2026044981A1

A molten-salt-assisted valence-gradient-doped modified single-crystal positive electrode material, and a preparation method therefor and a use thereof. The preparation method comprises the following steps: mixing a transition metal source, a lithium source, a manganese source and a molten salt additive, sequentially performing first sintering and second sintering, and removing the molten salt additive to obtain a doped modified single-crystal positive electrode material precursor; performing tempering treatment on the doped modified single-crystal positive electrode material precursor to obtain a molten salt-assisted valence-gradient-doped modified single-crystal positive electrode material. The prepared doped modified single-crystal positive electrode material can effectively avoid capacity loss of the material, significantly reduce lattice mismatch during lithium deintercalation/intercalation, and alleviate volume strain during charging and discharging. Moreover, the formed M-O bond can enhance the structural stability of the material and inhibit the formation of micro-cracks in the material. The preparation method for the positive electrode material facilitates industrial application, and provides an idea for commercial modified positive electrode materials.