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BATTERY BOX WITH STRUCTURE SECURING FIRE SAFETY AND ENABLING MULTI-LAYER STACKING

Resumen de: US20260066454A1

The present disclosure relates to a battery box having a structure that provides fire safety and enables multi-layer stacking. The battery box according to the present disclosure includes a first enclosure configured to accommodate a plurality of battery modules therein, a deflagration panel configured to rupture to allow flammable to be discharged from the first enclosure, when the flammable gas is generated in the first enclosure and pressure inside the first enclosure increases to a value greater than or equal to a threshold pressure, a first duct which has a lower end connected to the deflagration panel and an upper end connected to an exhaust port spaced a distance apart from the battery box and which guides the flammable gas discharged from the deflagration panel to the exhaust port, and a stacking support positioned on the first enclosure and configured to support a second enclosure stacked on the first enclosure.

BATTERY PACK AND ENERGY STORAGE SYSTEM INCLUDING THE SAME

Resumen de: US20260066407A1

According to embodiments of the present disclosure, a battery pack includes a case configured to have an accommodation space therein, at least one battery module configured to be disposed in the accommodation space and include a plurality of battery cells, a fire extinguishing pipe configured to be disposed in the accommodation space and have a fire extinguishing agent, and at least one heat insulating material configured to be disposed between the battery module and the fire extinguishing pipe and have a plurality of holes formed at a position corresponding to that of the fire extinguishing pipe, wherein the heat insulating material covers a side surface of the battery module, and wherein the fire extinguishing pipe melts at a temperature equal to or greater than a threshold value, and a fire extinguishing agent in the fire extinguishing pipe is discharged into the accommodation space.

COOLANT LEAK DETECTION APPARATUS AND METHOD OF DETECTING COOLANT LEAK USING THE SAME

Resumen de: US20260063499A1

Provided are a coolant leak detection apparatus and method of detecting a coolant leak using the same. The apparatus is capable of measuring a mass and temperature of coolant stored in a tank part, and detecting a coolant leak using information on the mass and temperature of the coolant. The coolant leak detection apparatus includes a mass measuring part being installed on a tank part that stores coolant and the mass measurement part being configured to measure a mass of the coolant stored in the tank part, a temperature measuring part being installed on the tank part and configured to measure temperature of the coolant, and a control part electrically connected to the mass measuring part and temperature measuring part and configured to detect a leak of the coolant using information on the mass and temperature of the coolant received from the mass measuring part and temperature measuring part, respectively.

STRIP BATTERY SYSTEM

Resumen de: US20260062069A1

Strip shape battery modules are provided that can be positioned between cross beams of a trailer, a cargo compartment of a truck, etc. The strip shape battery modules can be connected so as to provide suitable power to a transport climate control system. The strip shape battery modules can be positioned at a ground clearance of 700 millimeters or more. The strip shape battery modules can be secured using skid plates covering connections and locking the modules in place.

ELECTRIC POWER INTEGRATED CLIMATE CONTROL UNIT, AND TRANSPORT CLIMATE CONTROL SYSTEM THEREOF

Resumen de: US20260061952A1

A transport climate control unit (CCU) includes an internal space, an outer housing containing the internal space, a climate control circuit, and a rechargeable electrical power source. The climate control circuit is located in the internal space. The internal space includes a first compartment defined by the outer housing. The rechargeable electrical power source is located in the first compartment of the outer housing. The rechargeable electrical power source is configured to supply electrical power that operates the climate control circuit to climate condition a climate controlled space. A transport climate control system includes a transport climate control unit attached to a transport unit.

LARGE-SCALE BATTERY ENERGY STORAGE SYSTEM SITING AND SIZING FOR PARTICIPATION IN WHOLESALE ENERGY MARKET USING HYPERPARAMETER OPTIMIZATION

Resumen de: US20260066658A1

According to a method to aid installation of large-scale BESS in a power network, a hyperparameter optimization engine generates a feasible configuration of BESS defined by location and sizing parameters subject to an installation constraint. A power system simulation engine conducts an energy market simulation for the power network with the generated configuration over a defined simulation horizon to determine a configuration value. The power system simulation engine comprises one or more subroutines characterizing the impact of the BESS on the market clearing mechanism, to compute an expected generation cost associated with the BESS. The configuration value is determined based on the expected generation cost and a total installation cost of the BESS. The hyperparameter optimization engine is iteratively executed to generate an updated configuration based on the configuration values of previous configurations, to determine a final configuration of BESS defined by a set of optimal location and sizing parameters.

SECONDARY BATTERY, MANUFACTURING METHOD FOR SECONDARY BATTERY, AND ELECTRICAL APPARATUS

Resumen de: WO2026045537A1

The present application relates to the technical field of energy storage. Specifically disclosed are a secondary battery, a manufacturing method for a secondary battery, and an electrical apparatus. The secondary battery comprises an electrode assembly, the electrode assembly comprising a first electrode sheet, a second electrode sheet, a separator and a filler. The first electrode sheet comprises a first current collector and a first active material layer, the second electrode sheet comprises a second current collector and a second active material layer, and the separator is arranged between the first active material layer and the second active material layer. The first active material layer is provided with recesses, each recess comprising a recess opening and a recess wall, and the other side of the separator facing the positions of the recess openings corresponding to the second active material layer. The filler comprises filling parts, the filling parts being located in the recesses, and the filling parts covering at least part of the recess walls. The filler can separate lithium dendrites precipitated in the recesses from the separator, so as to restrict the growth of the lithium dendrites in the recesses in a direction toward the separator, thereby reducing the likelihood that lithium dendrites pierce separators.

NEGATIVE ELECTRODE MATERIAL, PREPARATION METHOD THEREFOR, AND USE THEREOF

Resumen de: WO2026045528A1

The present application relates to the field of batteries, and in particular to a negative electrode material, a preparation method therefor, and a use thereof. The negative electrode material comprises: a substrate and a modification material layer provided on the surface of the substrate, wherein the substrate comprises hard carbon and graphite covering the hard carbon; the chemical formula of a modification material in the modification material layer is MoOx-MoyN, wherein the value of x is 2-3, and the value of y is 1-2. Compared with a conventional graphite negative electrode material, the negative electrode material has good fast charging performance and long-cycle interfacial electrochemical stability.

CHARGING CONTROL METHOD, ELECTRONIC DEVICE, STORAGE MEDIUM, AND PROGRAM PRODUCT

Resumen de: WO2026045561A1

The embodiments of the present application relate to the technical field of charging. Provided are a charging control method, an electronic device, a storage medium, and a program product, which can improve the available capacity of a battery while improving the safety and service life of the battery. The charging control method comprises: when a battery is charged in a constant-voltage mode with a first voltage value as a charging voltage value, if the voltage value of the battery is less than or equal to a first voltage threshold value and a charging current value is less than or equal to a first current threshold value, increasing the charging voltage value to a second voltage value, wherein the second voltage value is greater than the first voltage value, and the first voltage threshold value is less than the first voltage value; when the battery is charged in the constant-voltage mode with the first voltage value as the charging voltage value, if a first condition is met, stopping the charging of the battery; and when the battery is charged in the constant-voltage mode with the second voltage value as the charging voltage value, if a second condition is met, stopping the charging of the battery.

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, DEVICE FOR MANUFACTURING SECONDARY BATTERY, AND METHOD OF MANUFACTURING SECONDARY BATTERY

Resumen de: US20260066499A1

A secondary battery includes an electrode assembly include a side that extends in a first direction, a case accommodating the electrode assembly, a lead tab protruding from the side of the electrode assembly, and a strip terminal connected to the lead tab. The lead tab is bent in the first direction. The strip terminal includes a first section connected to the lead tab and extending in the first direction, and a second section connected to the first section and bent in a second direction that intersects the first direction. An angle between the first section and the second section is 90 degrees or less.

ELECTRODE ASSEMBLY, SECONDARY BATTERY, AND BATTERY PACK

Resumen de: US20260066484A1

An electrode assembly, including a first electrode, a second electrode facing the first electrode, a first tab member extending from the first electrode, and a second tab member extending from the second electrode, wherein the first electrode and the second electrode have shorter lengths parallel to a second direction intersecting a first direction than lengths parallel to the first direction.

OVERMOLDED COMPONENT OF TRACTION BATTERY PACK

Resumen de: US20260066481A1

A traction battery pack assembly includes a frame; one or more busbars secured to the frame; a circuit board; and an overmolded covering that secures the circuit board to the frame. A traction battery pack circuit board securing method includes positioning a circuit board adjacent a frame. The frame is configured to hold a plurality of busbars of a traction battery pack. The method further includes overmolding the circuit board with a covering to secure the circuit board relative to the frame.

ELECTRODE ASSEMBLY, SECONDARY BATTERY, AND BATTERY PACK

Resumen de: US20260066485A1

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

SECONDARY BATTERY AND METHOD FOR MANUFACTURING THE SAME

Resumen de: US20260066470A1

A secondary battery, including a first electrode including a first substrate and a first active material layer on the first substrate, a second electrode including a second substrate and a second active material layer on the second substrate, and a separator between the first active material layer and the second active material layer, wherein the separator includes a double layer at a first end of the separator.

SECONDARY BATTERY

Resumen de: US20260066469A1

A secondary battery includes an electrode stack having a separator, the separator including a first separator region, a second separator region, a third separator region, and a fourth separator region, a first negative electrode plate between the first separator region and the second separator region, and a first positive electrode plate between the third separator region and the fourth separator region, an insulating tape on a periphery of the electrode stack, and a case receiving the electrode stack and the insulating tape, wherein one side of the second separator region contacts one side of the third separator region.

PORTABLE POWER CASE WITH HEAT-RESISTANT MATERIAL

Resumen de: US20260066682A1

Systems, methods, and articles for a portable power case are disclosed. The portable power case is comprised of at least one battery and at least one PCB. The portable power case has at least two access ports, at least two leads, or at least one access port and at least one lead and at least one USB port. The portable power case is operable to supply power to an amplifier, a radio, a wearable battery, a mobile phone, and a tablet. The portable power case is operable to be charged using solar panels, vehicle batteries, AC adapters, non-rechargeable batteries, and generators.The portable power case provides for modularity that allows the user to disassemble and selectively remove the batteries installed within the portable power case housing.

TECHNIQUES FOR MANAGING CHARGING OF BATTERIES

Resumen de: US20260066688A1

A method is provided, including: (a) providing an initial charging current to a battery; (b) receiving state information about the battery, including: (1) a temperature, (2) a load profile, and (3) a power loss temporal profile including power loss durations and timings of power failure events; (c) determining, based on the state information, a modification, including: (1) in response to detecting that (i) the temperature exceeds a first upper threshold or (ii) the load profile exceeds a second upper threshold, setting the modification to be a decrease in the charging current; and (2) in response to (iii) detecting that the load profile is below a lower threshold or (iv) predicting that the battery won't reach a full charge by a next expected power failure event if the initial charging current is maintained, setting the modification to be an increase in the charging current; and (d) in response to determining the modification, adjusting the charging current provided to the battery based on the determined modification.

Battery Fast-Charging Device and Method

Resumen de: US20260066685A1

The apparatus and method for fast charging of battery according to aspects of the disclosure may add a compensation current considering the current gain according to initial state of charge of the battery to the existing charge current of the battery obtained by considering only the temperature and real-time state of charge of the battery and supply it to the battery, thereby shortening fast charging time.

BATTERY MANAGEMENT APPARATUS AND METHOD OF CONTROLLING CHARGING/DISCHARGING USING THE SAME

Resumen de: US20260066687A1

A battery management apparatus includes a measuring unit including at least one sensor, the measuring unit configured to measure a cell voltage of each of a plurality of battery cells in a battery module, and a processor configured to adjust a charging threshold voltage or a discharging threshold voltage based on a difference in cell voltage between the plurality of battery cells and a current state of charge (SOC) of the battery module if charging or discharging the battery module.

LITHIUM BATTERY EMERGENCY JUMP STARTER

Resumen de: US20260066652A1

The present invention discloses a lithium battery emergency jump starter, comprising a rechargeable lithium battery and a relay controller with a magnetization function. The lithium battery controls output through a switch of a relay with the magnetization function driven by the controller; and when positive and negative poles of the lithium battery emergency jump starter are correctly connected to an automobile, large current can be outputted, and a magnetic field after large current is generated can be optimized for demagnetization. The present invention uses the relay controller with the magnetization function, and a magnetic field after large current is generated can be optimized for demagnetization. A USB socket has automatic insertion and detection functions, and also has circuit design to achieve the functions of zero consumption current, lithium battery bulge detection, three-level temperature detection and protection, etc. to form effective feedback and coping mechanisms.

SECONDARY BATTERY AND ELECTRONIC DEVICE

Nº publicación: WO2026045662A1 05/03/2026

Solicitante:

NINGDE AMPEREX TECH LIMITED [CN]
DONGGUAN AMPEREX TECH LIMITED [CN]
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\u4E1C\u839E\u65B0\u80FD\u6E90\u79D1\u6280\u6709\u9650\u516C\u53F8

Resumen de: WO2026045662A1

Disclosed in the present application are a secondary battery and an electronic device. The secondary battery comprises a packaging bag, an electrode assembly, an electrical connector, a first insulation member and a second insulation member. The electrode assembly is located in the packaging bag, the electrode assembly comprises a main body and a tab assembly, the tab assembly comprises a plurality of tabs, and the electrical connector is located outside the packaging bag and is electrically connected to the tab assembly. The tab assembly comprises a first portion and a second portion, the first portion extending from the main body and being connected to the second portion, and the second portion being bent towards the main body, forming a weld mark with the electrical connector, and comprising a first surface and a second surface. The first insulation member covers the weld mark, the second insulation member is located on one side of the tab assembly in the direction of thickness, and the second insulation member extends from the first surface of the second portion through the first portion to the main body. The thickness of the first insulation member is T1, and the thickness of the second insulation member is T2, wherein T1＞T2, 25μm≤T1≤60μm, and T2≥4μm, satisfying requirements of both safety performance and drop resistance of the secondary battery.