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CONNECTING MEMBER, BATTERY CELL, BATTERY, POWER CONSUMING APPARATUS, AND CONNECTING ELEMENT

Resumen de: US20260031504A1

Examples of the present application provide a connecting member, a battery cell, a battery, a power consuming apparatus, and a connecting element. The connecting member includes a first connecting element and a second connecting element connected to each other. A portion of the first connecting element and a portion of the second connecting element are stacked in a thickness direction of the connecting member. One of the first connecting element and the second connecting element is configured to be connected to a tab. The other of the first connecting element and the second connecting element is configured to be connected to an electrode terminal. A thickness of the connecting member at a connecting position of the first connecting element and the second connecting element is less than a sum of maximum thicknesses of the first connecting element and the second connecting element.

BATTERY CELL, BATTERY AND ELECTRIC DEVICE

Resumen de: US20260031474A1

A battery cell, a battery and an electric device. The battery cell comprises: an electrode assembly, which comprises at least one positive electrode sheet and at least one negative electrode sheet; and a casing, which is configured to accommodate the electrode assembly, and comprises a first wall portion, wherein the first wall portion is provided with a pressure relief portion, the pressure relief portion being configured to release the pressure in the battery cell; and the positive electrode sheet comprises a positive electrode active material region, the positive electrode active material region being arranged spaced apart from an inner surface of the first wall portion in a second direction.

BATTERY MODULE AND BATTERY PACK INCLUDING SAME

Resumen de: US20260031476A1

A battery module includes at least one battery cell; and a module case having an inner space accommodating the battery cell, and the module case includes: weld bead portions where one plate and another plate are welded on an edge line where they meet each other, and a pressure relief portion having a gap between the plates that are not welded.

CASING, BATTERY CELL, BATTERY AND ELECTRIC DEVICE

Resumen de: US20260031473A1

A casing, a battery cell, a battery and an electric device. A first notch and a second notch are formed on the same wall of the casing, the second notch is located on one side of the first notch in the direction of width, the projections of the first notch and the second notch in the direction of thickness of the casing are spaced apart from each other, and the thickness of the casing at the first notch is less than the thickness of the casing at the second notch. When the pressure inside the casing is extremely large, the casing can preferentially crack at the first notch and is folded at the second notch to form an opening for pressure relief, thereby reducing the risk of explosion of the battery cell.

ENERGY STORAGE SYSTEM, ENERGY STORAGE MODULE AND ELECTRIC APPARATUS

Resumen de: US20260031432A1

An energy storage system, an energy storage module, and an electric apparatus. The energy storage system includes a main heat exchange medium pipeline, a heat exchange unit, a self-sealing joint unit, and at least one battery. The battery includes at least one battery cell, the heat exchange unit is used for exchanging heat with the battery cell, the heat exchange unit is provided with a heat exchange medium port for a heat exchange medium to enter or exit, and the heat exchange medium port is in communication with the main heat exchange medium pipeline via the self-sealing joint unit.

ELECTRONIC POWER UNITS AND RELATED METHODS

Resumen de: US20260031433A1

Implementations of an electronic power unit may include a heater disposed in a battery pack, the heater electrically coupled with a heater controller and with a battery controller; and an exterior case, the exterior case enclosing the heater and the battery pack, the exterior case including an end that accommodates the power input of a military vehicle, the end including a coaxial connector.

BATTERY WELDING DEFECT DETECTION SYSTEM, METHOD, DEVICE, AND STORAGE MEDIUM

Resumen de: US20260030735A1

The present disclosure provides a battery welding defect detection system, method, device, and storage medium, wherein the system includes: the acquisition processing module, configured to acquire the welding image of the battery welding object and pre-process the welding image to obtain the processed welding image; the defect statistic module, configured to classify and count the processed welding image based on the target detection model to obtain the plurality of battery candidate frames; and the detection analysis module, configured to obtain the corresponding battery detection result according to the preset threshold and the battery candidate frames by the target detection model. The present disclosure performs the defect defection on the processed battery welding image based on the target detection model, thereby significantly improving the detection efficiency and the accuracy of the results, and at the same time effectively reducing the production cost.

APPARATUS AND METHOD FOR DETECTING DEFECT IN FOLDED PORTION OF CASING OF BATTERY CELL

Resumen de: US20260029374A1

An apparatus for detecting a defect in a folded portion of a casing of a battery cell, the apparatus includes a magnetic field outputter configured to output a magnetic field to the folded portion of the casing of the battery cell, a property measuring instrument configured to measure a property of the folded portion according to the magnetic field, and a controller configured to generate defect information of the folded portion, based on a measurement result of the property measuring instrument.

ELECTRIFIED VEHICLE BATTERY COMBINATION ELECTRICAL/ FLUID CONNECTOR

Resumen de: US20260029360A1

An electrified vehicle system is presented. The electrified vehicle system has a traction battery incorporating a plurality of electrically connected array modules submerged in a cooling fluid. A sensing component, coupled with at least one array module and immersed in the cooling fluid, is configured to detect a voltage drop when the fluid's contamination level reaches a threshold, thereby increasing electrical conductivity. This sensed voltage drop is communicated to a traction battery monitoring system, enabling proactive management of cooling fluid integrity.

BATTERY DIAGNOSTIC APPARATUS AND PROGRAM

Resumen de: US20260029487A1

A battery system includes an assembled battery including unit cells and a detection unit provided in at least one unit cell. A battery diagnostic apparatus calculates a state-of-health based on a parameter for degradation diagnosis detected by the detection unit for at least one unit cell, and calculates a change amount of a state-of-charge caused by energization, for the unit cells. When a unit cell of which the state-of-health is calculated is a first unit cell and a unit cell of which the state-of-health is not calculated is a second unit cell, the battery diagnostic apparatus calculates, as the state-of-health of the second unit cell, a value obtained by multiplying a change amount ratio that is a ratio of the change amount of the state-of-charge of the first unit cell to the change amount of the state-of-charge of the second unit cell by the state-of-health of the first unit cell.

APPARATUS AND METHOD FOR ESTIMATING LIFE OF BATTERY

Resumen de: US20260029486A1

A method for estimating a life of a battery includes measuring capacities of the battery based on a plurality of different temperatures and a plurality of different currents, selecting a reference capacity of the battery based on a reference temperature and a reference current, applying the reference capacity to derive compensation values with respect to the plurality of different temperatures and the plurality of different currents, identifying a start extant capacity of the battery at start of use of the battery, integrating the currents of the battery in a use time of the battery, and correcting the integration current to at least one of the compensation values, identifying an end extant capacity of the battery at end of use of the battery, and obtaining the life of the battery based on the start extant capacity of the battery, the end extant capacity of the battery, and the corrected integration current.

ESTIMATION DEVICE, DIAGNOSTIC DEVICE, ESTIMATION METHOD, ESTIMATION PROGRAM, AND DIAGNOSTIC METHOD

Resumen de: US20260029477A1

An estimation device includes: an acquisition portion acquiring time-series data of a current and a voltage of an energy storage device; a calculation portion calculating time-series data of an amount of electricity or an SOC, based on the time-series data of the current and the voltage acquired by the acquisition portion; a generation portion generating a partial charge/discharge profile of the energy storage device, based on the time-series data of the current and the voltage acquired by the acquisition portion and the time-series data of the amount of electricity or the SOC calculated by the calculation portion; and an estimation portion estimating an overall discharge characteristic of the energy storage device, based on a parameter representing an internal state amount of the energy storage device, the parameter being adjusted in such a way that a profile of a predetermined section in the overall discharge characteristic of the energy storage device approaches the partial charge/discharge profile.

Battery Cell Degradation Diagnosis Method and Battery System Using the Same

Resumen de: US20260029485A1

A method for diagnosing degrees of degradation of a plurality of battery cells constituting a battery pack by a battery management system includes: computing accumulated energy for the battery pack using a battery pack current flowing through the battery pack and a battery pack voltage that is a voltage of the battery pack; calculating a cell capacity of each of the plurality of battery cells every predetermined cell capacity calculation cycle; calculating a cell capacity difference every cell capacity calculation cycle for each of the plurality of battery cells; calculating a degree of change in cell capacity difference for each of the plurality of battery cells every accumulation cycle during which the accumulated energy increases by a predetermined unit; and diagnosing whether each battery cell is abnormal according to a result of comparing the degree of change in cell capacity difference calculated every accumulation cycle with a predetermined threshold value.

BATTERY PACK

Resumen de: US20260031455A1

A battery pack according to an embodiment of the present invention may include a housing, in which an accommodation space in which a secondary battery is accommodated is defined, and a switching part, which is mounted on the housing and elastically deformed according to pressure of the accommodation space to adjust communication between the accommodation space and an external space of the housing, so that the battery pack is deformed according to internal pressure to discharge an internal material such as internal gas and flame. The battery pack may prevent a phenomenon, in which the battery pack is exploded or toxic gas and flame is discharged unintentionally, to prevent resultant casualties and damage to property in advance.

ALL-SOLID-STATE BATTERY

Resumen de: US20260031452A1

Provided is an all-solid-state battery. The all-solid-state battery includes an encapsulation member (10), a cell assembly (20), and an adsorbent. A first chamber (12) and a second chamber (15) that communicate with each other are formed within the encapsulation member (10). The cell assembly (20) is accommodated in the first chamber (12). The adsorbent is accommodated in the second chamber (15) and can adsorb or eliminate hydrogen sulfide. A waterproof and breathable membrane (50) is disposed between the first chamber (12) and the second chamber (15).

SEPARATOR, ELECTROCHEMICAL APPARATUS, AND ELECTRONIC APPARATUS

Resumen de: US20260031479A1

A separator includes a sub-nanoporous material and a binder, where the sub-nanoporous material includes a metal-organic framework material or a molecular sieve material, and a pore size of pores of the sub-nanoporous material ranges from 0.01 nm to 1 nm. The separator can confine an electrolyte within the pores of the sub-nanoporous material. Applying the separator to an electrochemical apparatus facilitates reduction of side reactions between lithium metal and the electrolyte during cycling of the electrochemical apparatus, and increases lithium deposition density on a surface of a negative electrode plate, thereby alleviating issues such as cracking and peeling of an SEI film during cycling; and further facilitates an increase in lithium-ion transference number, thereby delaying growth of lithium dendrites, improving safety performance of the electrochemical apparatus, and extending the cycle life of the electrochemical apparatus.

SEPARATOR FOR ELECTROCHEMICAL DEVICE AND ELECTROCHEMICAL DEVICE COMPRISING SAME

Resumen de: US20260031478A1

Disclosed is a separator for an electrochemical device and an electrochemical device comprising the separator. The separator for the electrochemical device is capable of improving heat resistance by providing an adhesive layer comprising a polyvinyl acetate-containing resin in a coating layer, and reducing the resistance of a battery.

BATTERY PACK CASING AND BATTERY PACK

Resumen de: US20260031453A1

Provided are a battery pack casing and a battery pack. The battery pack casing includes an enclosure, an upper cover plate, a bottom protective plate, and at least one pressure relief valve. The bottom protective plate includes an upper plate, a lower plate, and multiple connecting platforms to form a pressure relief chamber. The upper plate also has multiple pressure relief holes that communicate with the pressure relief chamber. A buffer chamber that communicates with the pressure relief chamber is disposed in the enclosure. The at least one pressure relief valve is disposed on the enclosure and communicates with the buffer chamber.

POWER STORAGE DEVICE

Resumen de: US20260031469A1

A power storage device includes a power storage cell provided with a pressure relief valve, a housing in which the power storage cell is disposed, and a seat member provided in the housing. The seat member includes a sagging portion disposed while being sagged.

RECHARGEABLE BATTERY

Resumen de: US20260031451A1

A rechargeable battery according to an embodiment includes: an electrode assembly including a first electrode, a second electrode, and a separator between the first electrode and the second electrode; a case including an inner space to accommodate the electrode assembly and having an opening at a side thereof; a cap plate coupled to the opening of the case and including a terminal hole to expose the inner space; and an electrode terminal electrically connected to the electrode assembly through the terminal hole and overlapping the cap plate, and the cap plate and the electrode terminal are made of different metals.

COOLANT MONITORING SYSTEM

Resumen de: US20260030937A1

A coolant monitoring system for a vehicle cooling system, an engine cooling system and/or a battery cooling system. A cooling pressure sensor is coupled with the vehicle, engine and/or battery cooling systems. A temperature sensor is coupled with the vehicle, engine and/or battery cooling systems. A time measurement device is present. A controller is coupled with the cooling pressure sensor, temperature sensor and time measurement device. The controller monitors pressure and temperature valves with respect to time at various operating conditions and compares the pressure and temperature values with known acceptable pressure and temperature valves when no leaks are present to determine if a coolant leak exists.

PRESSURE RELIEF APPARATUS, BATTERY CELL, BATTERY, AND POWER CONSUMING DEVICE

Resumen de: US20260031471A1

A pressure relief apparatus includes a pressure relief portion provided with a first surface and a second surface arranged opposite to each other in a thickness direction of the pressure relief portion, and at least one stage of depressed groove and an indented groove. The at least one stage of depressed groove and the indented groove are formed in the pressure relief portion in sequence in a direction from the first surface to the second surface. A groove bottom wall of the stage of depressed groove farthest away from the first surface among the at least one stage of depressed groove is provided with an opening area. The indented groove is formed along an edge of the opening area. The opening area is configured to be openable with the stage of indented groove farthest away from the first surface as a boundary.

ELECTRODE ASSEMBLY AND SECONDARY BATTERY

Resumen de: US20260031481A1

The present disclosure relates to an electrode assembly and a secondary battery, the electrode assembly and the secondary battery exhibiting improved safety. The present disclosure describes an electrode assembly including one or more first electrodes, one or more second electrodes having a greater area than the one or more first electrodes, and one or more separators formed in a pouch shape in which the second electrode is accommodated. The first electrode and the separator in which the second electrode is accommodated are stacked together.

SECONDARY BATTERY

Resumen de: US20260031482A1

A secondary battery includes: an electrode assembly including: a first electrode plate on which a first electrode tap is located; a second electrode plate on which a second electrode tap is located; and a separator between the first electrode plate and the second electrode plate; fillers on a front surface of the electrode assembly; and a case accommodating the electrode assembly. The electrode assembly has a first surface and a second surface at an outmost edge, and facing the case in a stacking direction of the electrode assembly. At least one of the first surface or the second surface includes a central region where a thickness of the electrode assembly is constant, and edge regions other than the central region, and the fillers are located in the edge regions.

BATTERY CELL, METHOD AND SYSTEM FOR MANUFACTURING SAME, BATTERY, AND ELECTRICAL DEVICE

Nº publicación: US20260031448A1 29/01/2026

Solicitante:

CONTEMPORARY AMPEREX TECH HONG KONG LIMITED [CN]
Contemporary Amperex Technology (Hong Kong) Limited

Resumen de: US20260031448A1

A battery cell may include: a housing having an opening; an electrode assembly, accommodated in the housing; and an end cap, including a cap body and a protruding structure, where at least a part of the cap body may be disposed around the protruding structure and laser-welded to the housing so that the end cap fits and covers the opening. In a thickness direction of the end cap, the protruding structure may protrude from an inner surface of the cap body toward the electrode assembly, and block a laser beam during welding between the cap body and the housing. A first recess may be formed on the end cap at a position corresponding to the protruding structure, and recessed from an outer surface of the cap body toward the electrode assembly.