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ELECTRICAL CELL MODULE, AND A METHOD OF ASSEMBLING AN ELECTRICAL CELL MODULE

Resumen de: US20260074346A1

The invention relates to an electrical cell module comprising: an opposing pair of module end plates spaced apart along a longitudinal axis; a first cell stack; and a second cell stack. Each cell stack comprises: a series of cells stacked along the longitudinal axis, and a pair of stack end plates at opposing ends and configured to be fixed to one another in an assembled position to apply to the series of cells a compressive force along the longitudinal axis, and define a stack length. The compressive forces are within a predetermined operable range. Each opposing pair of module end plates is fixedly engaged, in a use position, with one corresponding stack end plate of each cell stack so the module end plates are spaced apart from one another along the longitudinal axis by a predetermined distance, and the first stack length is different to the second stack length.

POLE, POLE COMPONENT AND BATTERY

Resumen de: US20260074396A1

A pole, a pole component, and a battery are provided. The pole includes a first pole portion and a second pole portion. The first pole portion includes a first end and a second end that are in an axial direction of the first pole portion. An outer periphery of the first pole portion is convexly provided with a first flange, and the first flange is spaced apart from the second end in the axial direction. The first end is provided in a mating groove and engages with the second pole portion. An outer periphery of the second pole portion is convexly provided with a second flange. The first pole portion is spaced apart from the second flange. The second flange is provided with a first connecting groove, and the first flange is at least partially located in the first connecting groove and engages with the second flange.

CONDUCTIVE STRUCTURE, COVER PLATE ASSEMBLY, AND BATTERY CELL

Resumen de: US20260074390A1

A conductive structure, a cover plate assembly, and a battery cell are provided. The conductive structure includes a metal post and a metal layer. The metal post includes a first end and a second end opposite to each other. The first end is formed with a first step portion. The metal layer is bonded to a surface of the metal post. The metal layer wraps the first end and extends toward the second end. The metal layer is formed with a second step portion matching the first step portion. The second step portion is configured to be welded to a current collector.

METHOD AND APPARATUS FOR DETERMINING BATTERY CHARGING STATE

Resumen de: US20260074548A1

A method of determining a battery charging state includes measuring a voltage of a battery by a voltage measuring unit, calculating a compensation voltage for compensating for a voltage drop caused by a second resistance of a connection module disposed between the battery and the voltage measuring unit, and charging the battery, based on a total voltage defined as a sum of the compensation voltage and a cut-off voltage that is determined by a first resistance of the battery.

BATTERY CELL AND BATTERY PACK

Resumen de: WO2026051562A1

The present application relates to the technical field of batteries, and in particular to a battery cell and a battery pack. The battery cell comprises: a casing, in which an accommodating cavity is formed; and a cover plate, welded to the casing to seal the accommodating cavity, wherein after welding, a weld portion is formed between the cover plate and the casing; formula (I), wherein C is the perimeter of the cover plate and is expressed in mm, S is the area of the cover plate and is expressed in mm2, K is the shear strength of the cover plate and is expressed in Mpa, and B is the fusion depth of the weld portion and is expressed in mm. In the present invention, the perimeter C of the cover plate, the area S of the cover plate, the shear strength K of the cover plate, and the fusion depth B of the weld portion are defined to satisfy the condition C/S×B×K≥1.25, so that the welding strength between the casing and the cover plate can be ensured, and the weld portion is prevented from cracking, thereby ensuring the airtightness of the battery cell, and further ensuring the use safety of the battery cell.

ICE CREAM MACHINE

Resumen de: WO2026051574A1

An ice cream machine, comprising a housing, an inner container, a mounting seat, a first sealing member, and a stirring device. The housing has a double-layer structure, consisting of an outer housing layer and an inner housing layer. The outer housing layer and the inner housing layer are connected, forming a hollow vacuum interlayer portion therebetween. A first placement space formed among the housing, the inner container, the mounting seat, and the first sealing member is a first-layer sealing structure. The vacuum interlayer portion formed between the outer housing layer and the inner housing layer is a second‑layer sealing structure. The double‑layer structure is in a vacuum state and works in conjunction with a refrigerant, to prevent cooling loss from the inner container, thereby achieving an insulating and freezing effect.

BATTERY CELL DETECTION APPARATUS AND DETECTION METHOD USING SAME, AND BATTERY CELL DETECTION SYSTEM AND DETECTION METHOD USING SAME

Resumen de: WO2026051527A1

Embodiments of the present application provide a battery cell detection apparatus and a detection method using same, and a battery cell detection system and a detection method using same. The battery cell detection apparatus comprises: a detection apparatus arranged at a detection station; a conveying apparatus used for conveying a battery cell from a first placement position to a second placement position, the first placement position and the second placement position being located on two opposite sides of the detection apparatus; a first transfer apparatus arranged on a first side of the detection apparatus and used for transferring a grabbed battery cell to the detection station and placing a detected battery cell at the first placement position; and a second transfer apparatus arranged on a second side of the detection apparatus and used for grabbing a battery cell at the second placement position and transferring the grabbed battery cell to the detection station. The first transfer apparatus is configured to move a part to be detected of a battery cell to a first preset position, and the second transfer apparatus is configured to move a part to be detected of a battery cell to a second preset position. The detection apparatus is configured to detect the battery cell grabbed by the first transfer apparatus and/or the battery cell grabbed by the second transfer apparatus.

CABINET, ENERGY STORAGE APPARATUS, AND ELECTRICAL DEVICE

Resumen de: WO2026051553A1

The present application discloses a cabinet (10), an energy storage apparatus (100), and an electrical device (200). The cabinet (10) comprises a base (11), a first limiting member (12), and a second limiting member (13). The base (11) is provided with an accommodating recess (111) extending in a first direction (x). The accommodating recess (111) is provided with a first end (111a) and a second end (111b) disposed opposite to each other in the first direction (x). The first limiting member (12) is disposed on the base (11) and is located at the second end (111b). The first limiting member (12) abuts an end of a heat dissipation module (20) facing the same direction as the second end (111b). A limiting portion (13a) of the second limiting member (13) is connected to the first limiting member (12). A side of the limiting portion (13a) abuts a side of the heat dissipation module (20) along a second direction (y). A guide portion (13b) extends obliquely from the limiting portion (13a) towards the first end (111a) in the first direction (x), and is arranged to gradually diverge from the side of the limiting portion (13a) abutting the heat dissipation module (20). The guide portion (13b) is used to provide installation guidance for the heat dissipation module (20) to move into the accommodating recess (111) from the first end (111a) towards the second end (111b) so as to abut one side of the limiting portion (13a).

BATTERY CELL, BATTERY DEVICE AND ELECTRICAL DEVICE

Resumen de: WO2026051577A1

Provided in the present application are a battery cell, a battery device and an electrical device. The battery cell comprises a housing and an electrode assembly, the electrode assembly being accommodated in the housing. The electrode assembly comprises a first electrode sheet, a second electrode sheet, a solid-state electrolyte layer and an insulating member. The first electrode sheet comprises a first main body region and a first tab, the first tab being provided at one end of the first main body region in a first direction, the first tab comprising a folding portion and a connecting portion connected in sequence, the folding portion being connected to the folding portion of an adjacent first tab, and the connecting portion connecting the folding portion and the first main body region. The polarity of the second electrode sheet is opposite to that of the first electrode sheet. In the first direction, the end of the second electrode sheet close to the first tab is a first end. The solid-state electrolyte layer is provided between the first electrode sheet and the second electrode sheet in a second direction, the second direction intersecting the first direction. The provision of the insulating member reduces the risk of short circuits between the first electrode sheet and the second electrode sheet caused by overlapping between the connecting portion and the first end, thereby effectively improving the reliability of the battery cell.

ELECTRODE SHEET HEATING CONTROL METHOD AND SYSTEM

Resumen de: WO2026051515A1

A battery electrode sheet heating control method and a system. The battery electrode sheet heating control method comprises: controlling a heating device to heat a battery electrode sheet in a heating region on the basis of a preset heating parameter; acquiring the thickness of the heated battery electrode sheet; and when the thickness of the heated battery electrode sheet does not meet a thickness requirement, adjusting the preset heating parameter on the basis of the thickness of the heated battery electrode sheet, so as to control the heating device to heat a following battery electrode sheet on the basis of the adjusted preset heating parameter. By means of the battery electrode sheet heating control method, the thickness of a battery electrode sheet in a heating process can be monitored online, and a preset heating parameter can be flexibly adjusted when it is determined that the thickness of the heated battery electrode sheet does not meet the thickness requirement, thereby correcting the thickness of the battery electrode sheet in a timely manner and improving the thickness uniformity of the heated battery electrode sheet.

BATTERY CELL, BATTERY DEVICE, AND ELECTRIC DEVICE

Resumen de: WO2026051558A1

A battery cell, a battery device, and an electric device. The battery cell comprises a first cushioning assembly and at least one electrode assembly; each electrode assembly comprises a main body portion and a tab portion connected to at least one side of the main body portion in a first direction, the main body portion comprises a positive electrode portion containing a positive electrode active material, a negative electrode portion containing a negative electrode active material, and a solid electrolyte layer, the positive electrode portion, the solid electrolyte layer, and the negative electrode portion are stacked in the thickness direction of the battery cell, and the first direction is perpendicular to the thickness direction; and the first cushioning assembly is provided on at least one side of the at least one electrode assembly in the thickness direction, and a projection of the main body portion in the thickness direction is located within a projection of the first cushioning assembly in the thickness direction. The use reliability of the battery cell can be improved.

PREPARATION METHOD FOR MULTILAYER REINFORCED ALKALI-WATER COMPOSITE SEPARATOR

Resumen de: WO2026052108A1

Provided in the present invention is a preparation method for a multilayer reinforced alkali-water composite separator, comprising the following steps: step S1: preparing raw materials, the raw materials comprising polysulfone, zirconium dioxide, polyethylene glycol, polyvinylpyrrolidone, potassium chloride, methylpyrrolidone and a PEEK woven mesh; step S2: preparing a slurry; and step S3: preparing a separator. The present invention has the following beneficial effects: a PEEK woven mesh is used as a reinforced skeleton layer, the melting point of a PEEK material is 340°C, while the melting point of pps is about 280°C, such that the heat resistance of the PEEK material is significantly higher than that of a pps mesh cloth, and for future application in high-temperature alkaline electrolytic cells (>100°C), the heat resistance and safety of separators are greatly improved.

HIGH-RATE LITHIUM TRANSITION METAL PHOSPHATE MATERIAL AND SECONDARY BATTERY

Resumen de: WO2026051511A1

The present application provides a lithium-ion secondary battery, a lithium transition metal phosphate material, a method for preparing the lithium transition metal phosphate material, and an electric device, and specifically relates to a lithium-ion secondary battery. The lithium-ion secondary battery comprises a positive electrode sheet, wherein the positive electrode sheet comprises a positive electrode current collector and a positive electrode film layer arranged on at least one surface of the positive electrode current collector. The positive electrode film layer comprises a lithium transition metal phosphate material, and the lithium transition metal phosphate material comprises a lithium transition metal phosphate inner core, a carbon coating layer, and a conductive agent distributed on the surface of the carbon coating layer, wherein the carbon coating layer at least covers part of the surface of the inner core; the conductive agent comprises a linear conductive agent and/or a flaked conductive agent; and at least part of the conductive agent is embedded in the carbon coating layer. In the present invention, the lithium transition metal phosphate is modified by a high-electron-conductivity material, such that the electronic conductivity of the lithium transition metal phosphate is effectively improved, thereby improving the high-rate charge and discharge capability of a battery cell.

BATTERY CELL, BATTERY DEVICE AND ELECTRIC DEVICE

Resumen de: WO2026051580A1

Disclosed in the present application are a battery cell, a battery device, and an electric device. The battery cell comprises a housing, an electrode assembly, and a first electrode terminal and a second electrode terminal having opposite polarities. The housing has a first wall, wherein the first wall is made of steel, and the thickness of the first wall is greater than or equal to 0.2 mm and less than or equal to 1.5 mm. The electrode assembly is disposed inside the housing. In a first direction, the first electrode terminal and the second electrode terminal are spaced apart on the first wall, and the first electrode terminal and the second electrode terminal are electrically connected to the electrode assembly; the first direction is the lengthwise direction of the first wall. In the first direction, the center-to-center distance between the first electrode terminal and the second electrode terminal is a, and the length of the first wall is b, satisfying 40%≤a/b≤90%. The technical solution provided in the present application can effectively improve the reliability of the battery device.

SILICON-CARBON COMPOSITE MATERIAL, AND PREPARATION METHOD THEREFOR AND USE THEREOF

Resumen de: WO2026051513A1

The present application relates to the technical field of batteries, and specifically relates to a silicon-carbon composite material, and a preparation method therefor and the use thereof. The silicon-carbon composite material of the present application comprises a silicon nanosheet and a composite carbon structure located on the surface of the silicon nanosheet, wherein the composite carbon structure comprises a carbon framework and S, and the carbon framework and S form an S-C bond. The silicon-carbon composite material of the present application has great structural stability, can improve the ion and electron conductivity of a silicon negative electrode, and forms a three-dimensional ion- and electron-conducting path inside the silicon negative electrode, thereby ameliorating the problem of capacity attenuation of a pure silicon negative electrode during a cycling process, so as to achieve stable long-cycling performance and obtain a high capacity retention rate.

THERMAL MANAGEMENT SYSTEM FOR DISSIPATING HEAT FROM BATTERY PACK, AND ENERGY STORAGE DEVICE

Resumen de: WO2026051698A1

The present application provides a thermal management system for dissipating heat from a battery pack, and an energy storage device. In the thermal management system, an output end of a compressor is in communication with a condenser and is connected to an evaporator, and is also directly connected to an input end of the evaporator by means of a bypass branch. The input end of the evaporator can selectively receive a low-temperature refrigerant from the condenser and a high-temperature gaseous refrigerant from the compressor, and the two are mixed in the evaporator, so that the low-temperature refrigerant is heated by the high-temperature gaseous refrigerant. Thus, in a low-temperature environment, the degree of superheat of a refrigerant flowing out of the evaporator can be effectively increased, preventing liquid refrigerant from being drawn into the condenser under low-temperature conditions, and eliminating the risk of drawing in air together with liquid in the condenser, thereby increasing the reliability of operation of the condenser in a low-temperature state.

BATTERY

Resumen de: WO2026051630A1

Provided in the present application is a battery, comprising a battery cell main body, a bottom adhesive layer and a head adhesive layer, wherein the battery cell main body comprises a top surface and a bottom surface, and a first side surface, a second side surface, a third side surface and a fourth side surface which are located between the top surface and the bottom surface and are successively connected end to end in a circumferential direction; the second side surface has a stepped surface, the stepped surface comprising a first side surface region, a vertical surface region and a second side surface region which are successively connected, and the second side surface region protruding outwards with respect to the first side surface region; the bottom adhesive layer is located at the bottom of the battery cell main body and is provided with a first notch at a position close to or corresponding to the vertical surface region; the head adhesive layer is located at the top of the battery cell main body and is provided with a second notch at a position close to or corresponding to the vertical surface region. By means of the stepped surface, the battery can be adapted to a battery compartment structure having a local protrusion, thereby helping to improve the space utilization rate of entire devices and improve the battery capacity.

SECONDARY BATTERY AND ELECTRONIC DEVICE

Resumen de: WO2026051632A1

The present application relates to a secondary battery and an electronic device. Specifically, the present application provides a secondary battery, comprising a positive electrode, a negative electrode and an electrolyte, wherein the positive electrode comprises a positive electrode current collector, and an insulating layer and a positive electrode material layer which are provided on the positive electrode current collector, the insulating layer comprises boehmite, the positive electrode material layer comprises a nickel-cobalt-manganese ternary material, and the electrolyte comprises at least two dinitrile compounds. The present application can not only improve the short-circuit safety of the battery, but also reduce gas production at high temperature.

SECONDARY BATTERY AND ELECTRONIC DEVICE

Resumen de: WO2026051631A1

The present application relates to a secondary battery and an electronic device. Specifically, the present application provides a secondary battery, comprising: a positive electrode, a negative electrode, and an electrolyte, wherein the positive electrode comprises a positive electrode current collector, and an insulating layer and a positive electrode material layer which are provided on the positive electrode current collector; the insulating layer comprises boehmite, the positive electrode material layer comprises a lithium cobalt oxide, the lithium cobalt oxide comprises element tungsten and element tin, and the electrolyte comprises vinylene carbonate. The present application can not only improve the short-circuit safety of batteries, but also enhance high-rate discharge characteristics.

BATTERY APPARATUS AND ELECTRIC APPARATUS

Resumen de: WO2026051582A1

A battery apparatus (1000) and an electric apparatus (1). The battery apparatus (1000) comprises: a main box (100), wherein the main box (100) defines an accommodating cavity (101) with an open top, the main box (100) comprises a steel plate layer (110) and an aluminum plate layer (120) that are stacked in the thickness direction, and the aluminum plate layer (120) is arranged on the side of the steel plate layer (110) facing the accommodating cavity (101); and a battery cell (200), arranged in the accommodating cavity (101).

SECONDARY BATTERY AND ELECTRIC DEVICE

Resumen de: WO2026051506A1

Provided are a secondary battery and an electric device. By reasonably designing the composition of an electrolyte and a positive electrode material of a secondary battery, the secondary battery satisfies formula I, wherein N is the molar ratio of lithium salts LiPO2F2 and LiPF6 in the electrolyte, and N = 0.01-11; W1 is the weight ratio of cyclic carbonate to chain carbonate; W2 is the weight percentage of element A in a positive electrode active material; and C is the weight percentage of a sulfur-containing additive in the electrolyte. Keeping formula II within a suitable range can ensure excellent kinetic performance and low impedance in a lithium-ion battery, so that the migration of lithium ions in the battery maintains a good state, and the secondary battery can maintain good cycle performance at a high voltage.

BATTERY DEVICE, ELECTRIC DEVICE, AND VEHICLE

Resumen de: WO2026051486A1

A battery device (100), an electric device, and a vehicle (1000). The battery device (100) comprises: battery cells (10); an electrical structure (50); a case (20), wherein the case (20) is internally provided with a first accommodating cavity (201) and a second accommodating cavity (202), and at least part of the second accommodating cavity (202) is located above the first accommodating cavity (201) in the direction of gravity; and a one-way valve (30) provided on the case (20), wherein one end of the one-way valve (30) faces the first accommodating cavity (201), the other end of the one-way valve (30) faces the second accommodating cavity (202), and the one-way valve (30) is configured to allow a fluid in the second accommodating cavity (202) to enter the first accommodating cavity (201). The fluid in the second accommodating cavity (202) is discharged to the first accommodating cavity (201) by means of the one-way valve (30), thereby reducing damage to the electrical structure (50) caused by the fluid leaked from a liquid-cooled structure, and reducing damage to the electrical structure (50) caused by high-temperature and high-pressure fumes and gases generated by thermal runaway of the battery cells (10).

BATTERY DEVICE, ELECTRIC DEVICE AND VEHICLE

Resumen de: WO2026051484A1

The present application applies to the technical field of power battery devices. Provided are a battery device (100), an electric device (1000), and a vehicle. The battery device comprises: battery cells (10); an electrical structure (40); a case (20), wherein a first accommodating cavity (201) and a second accommodating cavity (202) are provided inside the case; and a one-way valve (30) connected to the case, wherein one end of the one-way valve faces the second accommodating cavity, and the other end of the one-way valve faces the space outside the case; the one-way valve is configured to allow fluid in the second accommodating cavity to be discharged to the space outside the case, and the one-way valve is also used to prevent substances in the space outside the case from entering the second accommodating cavity. In the battery device provided in the embodiments of the present application, the provision of the one-way valve enables fluid in the second accommodating cavity to be directly discharged to the outside of the case; in addition, the one-way valve can also prevent impurities outside the case from entering the second accommodating cavity, thereby reducing damage to the electrical structure caused by external impurities.

BATTERY APPARATUS AND ELECTRIC DEVICE

Resumen de: WO2026051493A1

The present application provides a battery apparatus (100) and an electric device. The battery apparatus (100) comprises: a case (2); a battery cell (10) arranged inside the case (2); and a low-voltage acquisition assembly (3) arranged inside the case (2), the low-voltage acquisition assembly (3) being used for acquiring operating state parameters of the battery cell (10), and the operating state parameters including voltage and temperature. The low-voltage acquisition assembly (3) comprises: a first sampling member (31), the first sampling member (31) being connected to the battery cell (10) so as to acquire the voltage of the battery cell (10); a second sampling member (32), one end of the second sampling member (32) being detachably connected to the first sampling member (31) so as to transmit the voltage; a third sampling member (33), the third sampling member (33) being detachably connected to the other end of the second sampling member (32) so as to transmit the voltage; and a fourth sampling member (34), the fourth sampling member (34) being connected to the second sampling member (32) so as to acquire the temperature of the battery cell (10).

ELECTROCHEMICAL APPARATUS AND ELECTRICAL DEVICE

Nº publicación: WO2026051500A1 12/03/2026

Solicitante:

NINGDE AMPEREX TECH LIMITED [CN]
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Resumen de: WO2026051500A1

The present application discloses an electrochemical apparatus and an electrical device. The electrochemical apparatus comprises an electrode assembly and a first discharge controller, the electrode assembly comprising a plurality of negative electrode sheets. The plurality of negative electrode sheets comprise at least one first negative electrode sheet and at least one second negative electrode sheet. Each first negative electrode sheet comprises a first negative electrode active substance layer, and the mass percentage of the element silicon in the first negative electrode active substance layer is N1, where N1≥0. Each second negative electrode sheet comprises a second negative electrode active substance layer, and the mass percentage of the element silicon in the second negative electrode active substance layer is N2, where N2>N1. A second negative tab is electrically connected to the first discharge controller. The first discharge controller is preset to have a first cut-off voltage. The first discharge controller is configured to disconnect an electrical connection between the second negative tab and an external load when the discharge voltage of the electrode assembly is equal to or less than the first cut-off voltage. The electrochemical apparatus is beneficial for improving discharge capacity.