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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.

ELECTRODE ASSEMBLY, SECONDARY BATTERY, AND BATTERY PACK

Resumen de: US20260066496A1

An electrode assembly, a secondary battery, and a battery pack are disclosed. An electrode assembly includes one or more positive electrode plates, one or more negative electrode plates facing the one or more positive electrode plates in a first direction, a first positive electrode tab extending from a positive electrode plate of the one or more positive electrode plates and bent in the first direction, a second positive electrode tab extending from the positive electrode plate and bent in a direction opposite to the first direction, a first negative electrode tab extending from a negative electrode plate of the one or more negative electrode plates and bent in the direction opposite to the first direction, and a second negative electrode tab extending from the negative electrode plate and bent in the first direction.

BATTERY MODULE OR PACK

Resumen de: US20260066416A1

A battery pack is described that does not require spot welding and does not require bolts to maintain contact compression of the individual battery cells. In one embodiment, each individual cell is a 18650 size lithium ion rechargeable battery cell, but the battery pack can use any size, type or shape individual battery cells with an easy modification of parts of the battery pack.

POWER STORAGE DEVICE

Resumen de: WO2026048657A1

This power storage device comprises a first power storage element and a second power storage element. The first power storage element is provided with: a first electrode body in which a positive electrode plate and a negative electrode plate are layered; a first electrolyte which comprises a non-aqueous potassium-ion electrolyte or a non-aqueous sodium-ion electrolyte; a first rectangular container which accommodates the first electrode body and the first electrolyte and which is electrically connected to the negative electrode plate of the first electrode body; and a positive electrode terminal which is disposed outside the first rectangular container in a state of being insulated from the first rectangular container and which is electrically connected to the positive electrode plate of the first electrode body. The second power storage element is provided with: a second electrode body in which a positive electrode plate and a negative electrode plate are layered; a second electrolyte which comprises a non-aqueous potassium-ion electrolyte or a non-aqueous sodium-ion electrolyte; a second rectangular container which accommodates the second electrode body and the second electrolyte and which is electrically connected to the positive electrode plate of the second electrode body; and a negative electrode terminal which is disposed outside the second rectangular container in a state of being insulated from the second rectangular container and which is electrically connected to t

POWER STORAGE ELEMENT

Resumen de: WO2026048655A1

A power storage element comprises: an electrode body in which a positive electrode plate in which a positive electrode active material layer is formed on a positive electrode current collector foil, and a negative electrode plate in which a negative electrode active material layer is formed on a negative electrode current collector foil are laminated; a potassium ion nonaqueous electrolyte; and a rectangular container that accommodates the electrode body and the potassium ion nonaqueous electrolyte. The negative electrode current collector foil is formed from aluminum or an aluminum alloy.

POWER STORAGE DEVICE

Resumen de: WO2026048658A1

This power storage device comprises a first power storage element and a second power storage element, wherein: the first power storage element comprises a first electrode body that is obtained by stacking a positive electrode plate and a negative electrode plate, a first container that accommodates the first electrode body and that is electrically connected to the negative electrode plate of the first electrode body, and a positive electrode terminal that is disposed outside the first container in a state of being insulated from the first container and is electrically connected to the positive electrode plate of the first electrode body; the second power storage element comprises a second electrode body that is obtained by stacking a positive electrode plate and a negative electrode plate, a second container that accommodates the second electrode body and that is electrically connected to the positive electrode plate of the second electrode body, and a negative electrode terminal that is disposed outside the second container in a state of being insulated from the second container and is electrically connected to the negative electrode plate of the second electrode body; the first container and the second container are electrically connected to each other; and the power storage device includes a first balancer circuit that is connected to a location on either the first container or the second container and the positive electrode terminal, and a second balancer circuit that is

BATTERY SIGNAL ACQUISITION DEVICE AND BATTERY MODULE

Resumen de: WO2026045056A1

The present application discloses a battery signal acquisition device and a battery module. The battery signal acquisition device comprises a mounting seat, a BMS, and wire harnesses, and further comprises a pin header assembly. The pin header assembly comprises a pin header base and pin headers. One of the mounting seat and the pin header base is provided with positioning rods, and the other of the mounting seat and the pin header base is provided with positioning holes. The positioning rods are inserted into the positioning holes. A gap is provided between the outer wall of each positioning rod and the inner wall of the corresponding positioning hole. The pin headers are arranged on the pin header base. The pin headers are configured to be simultaneously electrically connected to the BMS and the wire harnesses.

FULL-TAB FLATTENING FIXTURE

Resumen de: WO2026045037A1

The present application provides a full-tab flattening fixture. The full-tab flattening fixture comprises mounting bases, pressing plates, and a reflector; the mounting bases are arranged in a pair, and two mounting bases in the pair are spaced apart in a first direction; the pressing plates are made of a transparent material; the ends of the two mounting bases facing each other are respectively provided with the pressing plates; the pressing plates are used for abutting against a battery cell and flattening a full tab of the battery cell; at least one of the mounting bases is provided with the reflector; the reflector is arranged on the side of the pressing plate away from the other mounting base, and a reflective surface of the reflector is arranged to face the pressing plate.

SEPARATOR, SECONDARY BATTERY AND ELECTRIC DEVICE

Resumen de: WO2026045851A1

Disclosed are a separator, a secondary battery and an electric device. The separator comprises: a substrate and a coating, wherein the coating is formed on at least one side of the substrate, and comprises acrylate polymer particles. In a three-dimensional imaging spectrogram, the value of an effective abscissa in a scan spectrum across the centers of the acrylate polymer particles is 5-150 um. The separator can be bonded to an electrode sheet by means of cold pressing, and the bonding force between the electrode sheet and the separator is suitable, thereby improving the cycle performance of a battery.

BATTERY PROTECTION BOARD, BATTERY AND ELECTRIC DEVICE

Resumen de: WO2026045848A1

A battery protection board (12), a battery (10) and an electric device (1). The battery protection board (12) comprises a substrate (100), a field-effect transistor group (200), a first temperature sensor (300) and a second temperature sensor (400), wherein the field-effect transistor group (200) is disposed on the substrate (100). The field-effect transistor group (200) comprises a charging field-effect transistor (210) and a discharging field-effect transistor (220), wherein the first temperature sensor (300) is disposed at the charging field-effect transistor (210), and is used for collecting the temperature of the charging field-effect transistor (210), and the second temperature sensor (400) is disposed at the discharging field-effect transistor (220), and is used for collecting the temperature of the discharging field-effect transistor (220). In this way, there are few restrictions on the relative positions of the charging field-effect transistor (210) and the discharging field-effect transistor (220), which enables flexible arrangement of the charging field-effect transistor (210) and the discharging field-effect transistor (220).

BATTERY AND BATTERY PROCESSING TECHNOLOGY THEREFOR

Resumen de: WO2026044488A1

The present application relates to the technical field of batteries, and in particular to a battery and a battery processing technology. The battery comprises: a case, comprising a cell frame having an accommodating space and two case covers, wherein a pole mounting hole, an electrolyte injection hole, and an explosion-proof valve hole are formed on the cell frame; an electrode core assembly, arranged in the accommodating space of the cell frame, wherein the electrode core assembly comprises an electrode core provided with a positive electrode tab and a negative electrode tab, an insulating film sleeved on the outer side of the electrode core, a spacer ring arranged between the tab side of the electrode core and the cell frame, and two side plates arranged between the opposite side of the electrode core and the cell frame; a pole assembly, arranged at the pole mounting hole, wherein the pole assembly comprises a pole, a first sealing ring sleeved on the pole, an outer insulating member and an inner insulating member which are arranged on the inner and outer sides of the pole mounting hole, and an outer connecting member arranged on the outer insulating member and fixed to the pole by welding; an explosion-proof valve, arranged at the explosion-proof valve hole; and a blocking member, sealing the electrolyte injection hole on the cell frame.

HEAT EXCHANGE ASSEMBLY, BATTERY DEVICE, ELECTRIC APPARATUS, AND ENERGY STORAGE APPARATUS

Resumen de: WO2026044464A1

Embodiments of the present disclosure provide a heat exchange assembly, a battery device, an electric apparatus, and an energy storage apparatus. The battery device comprises a box assembly, a battery cell assembly, and the heat exchange assembly. The box assembly is internally provided with a first accommodating cavity. The battery cell assembly is arranged in the first accommodating cavity. The heat exchange assembly is arranged in the box assembly. The heat exchange assembly comprises at least two flexible members. The at least two flexible members are stacked, at least one medium flow channel is formed between the flexible members, the at least one medium flow channel is used for allowing a heat exchange medium to flow, and the heat exchange medium is used for exchanging heat with the battery cell assembly.

HEAT EXCHANGE ASSEMBLY, BATTERY APPARATUS, ELECTRIC DEVICE AND ENERGY STORAGE DEVICE

Resumen de: WO2026044462A1

A heat exchange assembly (30), a battery apparatus (100), an electric device, and an energy storage device. The battery apparatus (100) comprises a case assembly (20), a battery cell assembly (10), and a heat exchange assembly (30). The battery cell assembly (10) is arranged in the case assembly (20). The heat exchange assembly (30) is arranged in the case assembly (20). The heat exchange assembly (30) comprises at least two flexible members (31), and the at least two flexible members (31) are stacked. The at least two flexible members (31) form a heat-sealed region (34) and a flow channel region (32) by means of hot pressing. The flow channel region (32) is used for conducting a heat exchange medium so as to perform heat exchange on the battery cell assembly (10). The heat-sealed region (34) comprises a non-heat-sealed region (37), and the at least two flexible members (31) are connected to each other in the heat-sealed region (34).

Exfoliación electroquímica del grafito para la producción de escamas de grafeno

Resumen de: MX2025012739A

A method for producing graphene. The method includes loading an open-cell porous backbone material with particulate graphite, submersing at least part of the graphite-loaded porous backbone material in a solution, and applying a cathodic potential to the graphite-loaded porous backbone material, wherein the cathodic potential suffices to exfoliate graphene.

SECONDARY BATTERY

Resumen de: US20260066491A1

A secondary battery includes: an electrode assembly, a case accommodating the electrode assembly, a cap plate sealing the case; and a current collector plate welded between the electrode assembly and the case or between the electrode assembly and the cap plate. The current collector plate has a slit therein.

SECONDARY BATTERY INCLUDING CENTRAL STRUCTURE AND MANUFACTURING METHOD THEREOF

Resumen de: US20260066411A1

A secondary battery includes an electrode assembly including a first electrode, a separator, and a second electrode stacked sequentially, a first case configured to accommodate a portion of the electrode assembly, a second case configured to accommodate another portion of the electrode assembly, and a central structure between the first case and the second case.

ELECTRODE ASSEMBLIES, AND PREPARATION METHODS THEREOF, AND RECHARGEABLE LITHIUM BATTERIES

Resumen de: US20260066460A1

Disclosed are an electrode assembly, a method of preparing the electrode assembly, and a rechargeable lithium battery including the electrode assembly. The electrode assembly includes an electrode current collector, an electrode active material layer on the electrode current collector, and a coating layer located on the electrode active material layer and integrated with the electrode active material layer. The coating layer includes polymer nanofibers. The polymer nanofibers include a fluorine-based polymer and a nitrile-based polymer as a polymer. A dielectric constant of the polymer is greater than or equal to about 0.06 pF/mm3, and the electrical conductivity of the polymer is in a range of about 3.0 μS/mm3 to about 50.0 μS/mm3.

THIN BATTERY PACK ARCHITECTURE

Resumen de: US20260066415A1

Battery systems according to embodiments of the present technology may include a battery including a lid that defines lateral dimensions of the battery and a base. The base may define an internal volume of the battery between an interior surface of the lid and an interior surface of the base. The base may be coupled with the lid to define a flange extending about lateral edges of the battery. The base may define a tiered profile along an exterior surface of the battery towards a first lateral edge of the battery. The tiered profile may include a first tier defining a depth of the battery, a second tier defining a first terrace proximate the flange along an intersection of the first lateral edge of the battery and a second lateral edge of the battery, and a third tier extending inward from the first lateral edge of the battery and extending between the first terrace and the second terrace. A battery may also include a module seated on the exterior surface of the base of the battery along the third tier, and between the first terrace and the second terrace.

ELECTRODE ASSEMBLY AND SECONDARY BATTERY INCLUDING THE SAME

Resumen de: US20260066488A1

An electrode assembly according to embodiments of the present disclosure includes a separator and an electrode wound with the separator therebetween. The electrode includes an electrode current collector including a coated region and an uncoated region, and an active material layer formed on the coated region of the electrode current collector. The uncoated region includes a tab region including protrusions that extend in a direction perpendicular to the winding direction of the electrode and parallel to the coated region. The tab region includes protrusions having different widths.

SEPARATOR FOR ELECTROCHEMICAL DEVICE AND ELECTROCHEMICAL DEVICE INCLUDING THE SAME

Resumen de: US20260066474A1

A separator for an electrochemical device includes a porous polymer substrate; and a coating layer disposed on at least one surface of the porous polymer substrate and including inorganic particles. The porous polymer substrate has a porosity of about 50 vol % or more and 65 vol % or less, the porous polymer substrate includes a polymer having a melt index of about 0.0001 g/10 min or more and 0.01 g/10 min or less, and the coating layer has a porosity of about 40 vol % or more and 70 vol % or less.

LITHIUM SECONDARY BATTERY

Resumen de: WO2026048654A1

A lithium secondary battery comprises: an electrode group in which a band-shaped positive electrode and a band-shaped negative electrode are wound with a separator interposed therebetween; and a non-aqueous electrolyte. The positive electrode has a positive electrode current collector and a positive electrode mixture layer that is disposed on the positive electrode current collector. The positive electrode has one or more positive electrode current collector exposed portions at which the positive electrode current collector is exposed, and the one or more positive electrode current collector exposed portions include one or more positive electrode lead fixing portions to which a positive electrode lead is fixed. The negative electrode includes one or more negative electrode lead fixing portions to which a negative electrode lead is fixed. The negative electrode lead fixing portion faces one of the one or more positive electrode current collector exposed portions in a radial direction that is perpendicular to the winding axis, with the separator interposed therebetween.

NONAQUEOUS ELECTROLYTE SECONDARY BATTERY

Nº publicación: WO2026048475A1 05/03/2026

Solicitante:

PANASONIC INTELLECTUAL PROPERTY MAN CO LTD [JP]
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Resumen de: WO2026048475A1

A nonaqueous electrolyte secondary battery (10) includes a positive electrode (11), a negative electrode (12), and a nonaqueous electrolyte, and is characterized in that: the positive electrode (11) has a positive electrode core and a positive electrode mixture layer provided on the positive electrode core; the positive electrode mixture layer contains a positive electrode active material; the positive electrode active material includes a first positive electrode active material having 《MK1》the shape of a secondary particle《/MK1》 formed by aggregation of primary particles, and a second positive electrode active material having 《MK1》the shape of a single particle《/MK1》; the content of the second positive electrode active material is 10 mass% or more and less than 40 mass% with respect to the total mass of the positive electrode active material; the nonaqueous electrolyte contains a heterocyclic compound including at least one electron withdrawing group R and a heterocycle; the electron withdrawing group R contains oxygen and/or nitrogen; and 《RA》the heterocycle《/RA》 contains nitrogen and sulfur.