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BATTERY CELL AND BATTERY SYSTEM

Resumen de: WO2026045584A1

A battery cell and a battery system. The battery cell comprises a first tab, a first electrode sheet and a first switching member, wherein the first electrode sheet can lead out an electrode by means of the first tab; within a first temperature range, the first switching member has a first form, and the first tab is conductively connected to the first electrode sheet; and within a second temperature range, the first switching member has a second form, and the first tab is non-conductively connected to the first electrode sheet.

DEHUMIDIFICATION CONTROL METHOD AND APPARATUS FOR ENERGY STORAGE CABINET, AND ELECTRONIC DEVICE AND STORAGE MEDIUM

Resumen de: WO2026045504A1

A dehumidification control method and apparatus for an energy storage cabinet, and an electronic device and a storage medium. The method comprises: establishing a system model of an energy storage cabinet (S101); on the basis of preset airflow requirement parameters, and dehumidification parameters of a dehumidifier, performing simulation on the mounting position of the dehumidifier in the energy storage cabinet, so as to determine a target mounting position of the dehumidifier (S102); mounting the dehumidifier at the target mounting position (S103); mounting temperature and humidity sensors in preset sensor areas and at the target mounting position, and measuring the temperature and humidity (S104); and on the basis of the measured temperature and humidity, and parameters of a psychrometric chart under the standard atmospheric pressure, controlling the dehumidifier to operate (S105).

CYLINDRICAL SECONDARY BATTERY AND ELECTRICAL DEVICE

Resumen de: WO2026044682A1

A cylindrical secondary battery (100) and an electrical device (1000), relating to the technical field of energy storage. The cylindrical secondary battery (100) comprises a pressure relief member (32) and a sealing member (40), the pressure relief member (32) being a conductive member. The pressure relief member (32) comprises a disc body part (321), a first protruding part (322) and a second protruding part (323). The disc body part (321) comprises a weak region (3211). In the central axis direction (X) of the disc body part, the first protruding part (322) is located at a side of the disc body part (321), and the second protruding part (323) is located at the other side of the disc body part (321). The first protruding part (322) and the second protruding part (323) protrude in the central axis direction (X) of the disc body part. The first protruding part (322) and the second protruding part (323) are embedded into the sealing member (40) so as to limit the displacement of the sealing member (40). The present application helps to improve the sealing effect of the cylindrical secondary battery (100).

ELECTROLYTE OF SECONDARY BATTERY, SECONDARY BATTERY AND ELECTRONIC DEVICE

Resumen de: WO2026044658A1

The present application provides an electrolyte of a secondary battery, a secondary battery, and an electronic device. The electrolyte comprises a first component and a second component, the first component comprising a compound represented by formula (I), and the second component comprising at least one of a compound represented by formula (II) or a compound represented by formula (III). Applying the electrolyte that comprises both the first component and the second component to a secondary battery enhances the cycle performance of the secondary battery, thereby allowing an electronic device to have a long service life.

SECONDARY BATTERY AND ELECTRONIC DEVICE

Resumen de: WO2026044653A1

The present application provides a secondary battery and an electronic device. The secondary battery comprises an electrolyte, which comprises a first organic compound and a second organic compound. The first organic compound comprises fluoroethylene carbonate, and the second organic compound comprises a compound of formula I. In the compound of formula I, R is selected from a C2 to C6 alkyl group which is substituted with fluorine or unsubstituted, and a C6 to C12 aryl group which is substituted with fluorine or unsubstituted. Based on the total mass of the electrolyte, the mass percentage of the first organic compound is A, and the mass percentage of the second organic compound is B, wherein 2%≤A≤30%, and 5%≤B≤85%. By adjusting and controlling the electrolyte to comprise the first organic compound and the second organic compound, as well as the types and mass percentages of the first and second organic compounds within the scope of the present application, the secondary battery can have both good cycling performance and low-temperature discharge performance.

SECONDARY BATTERY AND ELECTRONIC DEVICE

Resumen de: WO2026044639A1

The present application provides a secondary battery and an electronic device. An electrolyte comprises a salt consisting of an anion and a cation as shown in formula I and a compound of formula II. M1 is selected from element B or element Al. R1, R2, R3, and R4 are each independently selected from C1-C8 alkyl in which at least some hydrogen atoms are substituted by fluorine, C6-C20 aryl in which at least some hydrogen atoms are substituted by fluorine, C7-C22 aralkyl in which at least some hydrogen atoms are substituted by fluorine, C7-C20 alkaryl in which at least some hydrogen atoms are substituted by fluorine, C7-C20 ether bond-containing alkaryl in which at least some hydrogen atoms are substituted by fluorine, or C2-C10 ether bond-containing alkyl in which at least some hydrogen atoms are substituted by fluorine. R is selected from fluorine-substituted or unsubstituted C1-C5 alkyl, or amino substituted by C1-C5 alkyl. Rf is selected from a fluorine atom or trifluoromethyl. The cation comprises one of Li+, Na+, K+, Mg2+, Ca2+, and Zn2+. The electrolyte satisfies the described features, and can improve the cycle performance and the low-temperature discharge performance of the secondary battery.

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.

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.

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.

BATTERY SYSTEM SUPPORTING PLURALITY OF OPERATION MODES ACCORDING TO SOC

Resumen de: US20260066684A1

The present disclosure relates to a battery system supporting a plurality of operation modes according to the SoC. To this end, the battery system is characterized by comprising: one or more batteries supporting multiple operation modes for power storage or supply according to the state of charge (SoC); and a controller which determines an operation mode of the batteries among the plurality of operation modes according to the power supply state of a grid and the SoC of the batteries, wherein the batteries include a battery supporting an uninterrupted power supply (UPS) mode at an SoC at or below a first standard.

VOLTAGE CLAMPING FOR MODULAR POWER SYSTEM

Resumen de: US20260066678A1

A modular power system including a first modular battery core, a second modular battery core, and a controller electrically connected to the first modular battery core and the second modular battery core. The controller is configured to determine a first voltage of the first modular battery core and the second modular battery core and clamp the first modular battery core and the second modular battery core for a discharge operation when the first voltage is within a tolerance level of the second voltage.

CAP ASSEMBLY AND SECONDARY BATTERY INCLUDING SAME

Resumen de: US20260066505A1

A cap assembly including: a cap plate coupled to a case having an open top portion, the cap plate having a first terminal through-hole and a second terminal through-hole; a first terminal and a second terminal located in the first terminal through-hole and the second terminal through-hole, respectively, and electrically connected to an electrode assembly accommodated in the case; and at least one insulating member electrically insulating the cap plate from at least one of the first terminal or the second terminal.

METHOD OF MANUFACTURING BATTERY CELL AND BATTERY CELL

Resumen de: US20260066511A1

A method of manufacturing a battery cell includes an edge sealing process of sealing at least a portion of an edge of a case to form an edge sealed portion blocking an electrode accommodation portion and a gas accommodation portion externally and a finishing sealing process of sealing a boundary portion crossing between the electrode accommodation portion and the gas accommodation portion in a first direction to form an exterior sealed portion, wherein the exterior sealed portion includes a first portion formed in a central region of the boundary portion and a second portion formed in an end region of the boundary portion, and in the finishing sealing process, an extension extending in a second direction toward the electrode accommodation portion is formed in the second portion of the exterior sealed portion.

INSULATION MEMBER, BATTERY PACK, AND METHOD FOR MANUFACTURING BATTERY PACK

Resumen de: US20260066506A1

An insulation member includes an insulating material shaped into a volumetric shape, and interior space inside the volumetric shape, wherein the volumetric shape does not cover a protection circuit module on a case of a battery pack, the volumetric shape covering a polarity pin electrically connected to the battery pack and exposed to an outside of the case.

PRINTED CIRCUIT BOARD, BATTERY PACK, AND METHOD OF MANUFACTURING PRINTED CIRCUIT BOARD

Resumen de: US20260068032A1

Disclosed are a printed circuit board, a battery pack, and a method of manufacturing a printed circuit board. The printed circuit board may include a substrate, a large current stage part disposed in a mounting area of the substrate, and a coating layer including phase change materials (PCMs) and covering the large current stage part.

MOBILE ENERGY STORAGE DEVICE BATTERY SERVICE LIFE EARLY-WARNING PLATFORM BASED ON BATTERY THERMAL RUNAWAY ANALYSIS

Resumen de: WO2026045497A1

The present invention relates to battery-safety-related fields. Disclosed is a mobile energy storage device battery service life early-warning platform based on battery thermal runaway analysis. The platform comprises: a battery thermal runaway parameter set generation module, which is used for retrieving historical battery thermal runaway logs and generating a battery thermal runaway parameter set; a device battery operation parameter acquisition module, which is used for performing real-time monitoring and acquiring device battery operation parameters; a parameter comparison module, which is used for performing comparison and generating a parameter comparison result; a battery service life early-warning model construction module, which is used for constructing a battery service life early-warning model; an early-warning signal output module, which is used for acquiring battery state parameters and outputting an early-warning signal; and a smart alarm module, which is used for activating an alarm apparatus and connecting to a remote terminal to raise an alarm. The technical problem of the relatively low accuracy of prediction results in existing mobile energy storage device battery service life early-warning is solved, and the technical effects of improving the accuracy and reliability of early warning and providing a strong assurance for the safe operation of mobile energy storage devices are achieved.

ELECTROCHEMICAL APPARATUS AND ELECTRONIC DEVICE

Resumen de: WO2026045405A1

The present application discloses an electrochemical apparatus and an electronic device. The electrochemical apparatus comprises a negative electrode sheet and an electrolyte. The negative electrode sheet comprises a negative electrode active material, and the negative electrode active material comprises a silicon-based material. On the basis of the mass of the negative electrode active material, the mass percentage content of a silicon element in the silicon-based material is Z1%, wherein 0.1

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

Resumen de: WO2026045409A1

Provided in the embodiments of the present disclosure are a heat exchange assembly, a battery apparatus, an electrical device and an energy storage device. The battery apparatus comprises a box body assembly, a battery cell assembly, and the heat exchange assembly. The box body assembly is internally provided with a first accommodating cavity, the battery cell assembly being arranged in the first accommodating cavity. The heat exchange assembly comprises a heat exchange layer and a first thermal insulation layer, the heat exchange layer being a flexible structure and being configured to be in heat exchange cooperation with the battery cell assembly. The first thermal insulation layer is arranged between the box body assembly and the side of the heat exchange layer facing away from the battery cell assembly. The battery apparatus provided by the embodiments of the present disclosure is beneficial to improving the degree of fit between the heat exchange assembly and the box body assembly and/or the battery cell assembly, thereby improving the heat exchange efficiency and heat exchange effect of the heat exchange assembly. In addition, the provision of the first thermal insulation layer between the box body assembly and the side of the heat exchange layer facing away from the battery cell assembly can thermally insulate the battery cell assembly, thereby solving the problem of low peripheral temperature of the battery cell assembly, and improving the thermal management performan

CYLINDRICAL BATTERY, BATTERY PACK AND ELECTRONIC DEVICE

Resumen de: WO2026044529A1

Disclosed in the present application are a cylindrical battery, a battery pack and an electronic device. The cylindrical battery comprises a casing, a cover, an electrode assembly and a current-collecting disk, wherein the cover and the casing form an accommodating space by means of enclosing; the electrode assembly is arranged in the accommodating space; and in the axial direction of the cylindrical battery, the current-collecting disk is arranged between the electrode assembly and the bottom of the casing and is connected to the electrode assembly, and the current-collecting disk has a welding region. In the axial direction of the cylindrical battery, the bottom of the casing comprises a protrusion that protrudes towards the current-collecting disk, the protrusion being welded to the welding region, and the bottom comprises a first portion, a second portion and a third portion, which are connected to one another, the second portion being arranged around the first portion to form the protrusion, and the third portion being arranged around the second portion. In the axial direction of the cylindrical battery, the projection of the protrusion is located within the projection of the current-collecting disk, and the thickness of the first portion is less than the thickness of the third portion. A welding effect between the bottom and the current-collecting disk can be improved, thereby reducing the disconnection between the bottom and the current-collecting disk, improving the c

BATTERY DEVICE, BOTTOM PROTECTIVE PLATE, AND ELECTRIC APPARATUS

Resumen de: WO2026044502A1

A battery device (100a), a bottom protective plate (21), and an electric apparatus. The battery device (100a) comprises a battery cell (10) and a battery case (20) in which an accommodating space is formed. The accommodating space is used for accommodating the battery cell (10). The battery case (20) at least comprises the bottom protective plate (21). The bottom protective plate (21) is at least used for supporting the battery cell (10). The bottom protective plate (21) comprises a plate body (211) and a first polyurea layer (213). The surface of the plate body (211) facing towards the accommodating space is provided with an anti-corrosion layer (212). The first polyurea layer (213) is disposed on the surface of the plate body (211) facing away from the accommodating space. The described structure can improve the reliability of the battery device (100a).

INTEGRATED BATTERY FRAME AND BATTERY

Resumen de: WO2026044500A1

An integrated battery frame (200) and a battery. The integrated battery frame (200) comprises: a metal frame (1), the metal frame (1) comprising a rectangular frame having an accommodating space, and a terminal post mounting hole (15), an explosion-proof valve hole (16), and a liquid injection hole (17) disposed on the rectangular frame; a terminal post (2), the terminal post (2) comprising a substrate (21) arranged in the metal frame, and a first end (22) arranged on a side of the substrate (21) and extending to the exterior of the metal frame via the terminal post mounting hole (15); a mounting assembly (3), the mounting assembly (3) fixing and sealing the terminal post (2) at the terminal post mounting hole (15) of the metal frame; an explosion-proof valve (4); and a sealing assembly (5). Compared with conventional battery cover plate assemblies, the integrated battery frame (200), when applied to an ultra-thin battery, not only improves the structural strength and safety of the battery, but also optimizes space utilization, simplifies the assembly process, and enhances the energy density of the battery.

ELECTRODE ASSEMBLY, SECONDARY BATTERY, AND BATTERY PACK

Nº publicación: US20260066496A1 05/03/2026

Solicitante:

SAMSUNG SDI CO LTD [KR]
SAMSUNG SDI CO., LTD

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.