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CONDUCTIVE STRUCTURE AND MANUFACTURING METHOD THEREOF, COVER PLATE ASSEMBLY, AND BATTERY CELL

Resumen de: US20260074391A1

A conductive structure and a manufacturing method, a cover plate assembly, and a battery cell are provided. The conductive structure includes a metal post including a first end and a second end opposite to each other. A metal layer bonded to a surface of the metal post. The metal layer wraps the first end and extends toward the second end. The metal layer bonded to the surface of the first end of the metal post is arranged to extend from the surface of the first end of the metal post to the second end.

SECONDARY BATTERY AND SECONDARY BATTERY MODULE INCLUDING SAME

Resumen de: US20260074402A1

A secondary battery, including an electrode assembly including a first electrode, a second electrode, and a separator, a case configured to accommodate the electrode assembly, the case having one opening, a cap plate coupled to the one opening of the case, the cap plate including an injection port into which an electrolyte is injected, and a gas discharge portion coupled to the injection port of the cap plate, the gas discharge portion configured to discharge gas generated inside the case.

CHARGING AND DISCHARGING APPARATUS AND BATTERY CHARGING METHOD

Resumen de: US20260074547A1

Embodiments of the present application provide a charging and discharging apparatus and a battery charging method, which are capable of ensuring security performance of a battery. The apparatus comprises a bi-directional DC/DC converter and a control unit, wherein the control unit is configured to: receive a first charging current transmitted by a battery management system (BMS) of a battery, control the bi-directional DC/DC converter based on the first charging current to charge the battery through an energy storage battery; receive a first discharging current transmitted by the BMS and control the bi-directional DC/DC converter based on the first discharging current to discharge a battery capacity of the battery to the energy storage battery; and receive a second charging current transmitted by the BMS and control the bi-directional DC/DC converter based on the second charging current to charge the battery through the energy storage battery.

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

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.

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 CELL, BATTERY APPARATUS AND ELECTRICAL APPARATUS

Resumen de: WO2026050900A1

A battery cell (5), a battery apparatus and an electrical apparatus. In the battery cell (5), a positive electrode active material comprises lithium-containing phosphate having an olivine structure; the average particle size Dv50 of a negative electrode active material is 8 um to 15 um, and the negative electrode active material comprises graphite; a negative electrode current collector comprises a negative electrode current collecting portion (112a) and at least two negative electrode tabs provided on the same side of the negative electrode current collecting portion (112a), the negative electrode tabs extending from the negative electrode current collecting portion (112a) in a first direction (F1), the distance between the center lines (L) of any two adjacent negative electrode tabs being 10 mm to 350 mm, and the center line (L) being parallel to the first direction (F1).

ELECTRODE SLURRY STORAGE APPARATUS FOR SECONDARY BATTERY

Resumen de: US20260070003A1

Provided is an electrode slurry storage apparatus for a secondary battery, the apparatus comprising: a slurry storage tank storing an electrode slurry for a secondary battery; a degassing blade accommodated inside the slurry storage tank; and a negative pressure pump which is connected to the slurry storage tank and puts the inside of the slurry storage tank into a negative pressure state, wherein the degassing blade physically strikes air bubbles in the upper part of the slurry storage tank.

FILTER DEVICE AND BATTERY HOUSING WITH FILTER DEVICE

Resumen de: US20260074366A1

A filter device for filtering a fluid stream of a battery housing, for example of a traction battery of a motor vehicle, the filter device including a circumferential extending cover including a fluid passage and surrounding an interior space, and a filter element at least partially filling the interior space, the fluid passage being for fluid passing through the filter element. The cover being configured to accommodate a seat for the filter element via a circumferential extending filter sealing element, and to accommodate a seat for a circumferential extending sealing element.

BATTERY CELL, BATTERY DEVICE, AND ELECTRIC DEVICE

Resumen de: WO2026050901A1

A battery cell, a battery device, and an electric device. In the battery cell, a positive electrode active material comprises an olivine-structured lithium-containing phosphate, and in the cross section of a positive electrode film layer in the thickness direction, the olivine-structured lithium-containing phosphate contains first lithium-containing phosphate particles having a maximum diameter of 0.05 μm to 0.3 μm, and second lithium-containing phosphate particles having a maximum diameter of 1 μm to 3 μm; the average particle size Dv50 of a negative electrode active material is 8 μm to 15 μm, and the negative electrode active material comprises graphite.

NON-AQUEOUS SOLVENT ELECTROLYTE FORMULATIONS FOR ENERGY STORAGE DEVICES

Resumen de: US20260074293A1

Provided herein are improved electrolyte formulations. The improved performance may be realized as improved discharge rate cycling, improved capacity, improved Coulombic efficiency, or improved capacity upon cycling.

LITHIUM SECONDARY BATTERY AND METHOD FOR PRODUCING SAME

Resumen de: US20260074292A1

A lithium secondary battery 100 of the present disclosure includes: a positive electrode 5 including MnO2; a negative electrode 6 including a negative electrode active material with lithium ions occluded; and an electrolytic solution including a mixed solvent of a cyclic carbonate and a chain carbonate, the electrolytic solution being impregnated into the positive electrode 5 and the negative electrode 6. The negative electrode active material includes, for example, at least one selected from the group consisting of graphite and silicon. The cyclic carbonate includes, for example, at least one selected from the group consisting of ethylene carbonate and vinylene carbonate. The chain carbonate includes, for example, ethyl methyl carbonate.

ELECTROLYTE AND ELECTROCHEMICAL APPARATUS INCLUDING SUCH ELECTROLYTE

Resumen de: US20260074291A1

An electrolyte including lithium bis(fluorosulfonyl)imide and lithium hexafluorophosphate, where based on a total weight of the electrolyte, a weight percentage of lithium bis(fluorosulfonyl)imide is a %, and a weight percentage of lithium hexafluorophosphate is b %, where 12<a+b<20 and 0.2<a/b<1.5. An electrochemical apparatus using the electrolyte described in this application can achieve high energy density while also ensuring rate performance at room temperature and high temperature and cycling stability at room temperature and high temperature.

ELECTROLYTE FOR THICK LFP-LITHIUM BATTERY SYSTEM

Resumen de: US20260074289A1

An electrolyte for a thick LFP-Li battery system is provided. The electrolyte includes a low-viscosity main salt, at least one lithium-based functional salt, and a solvent including a low viscosity solvent mixed with a cyclic ether solvent. The low-viscosity main salt includes at least one of LiTFSI or a lithium salt.

LITHIUM-ION SECONDARY BATTERY AND ELECTRIC APPARATUS

Resumen de: US20260074287A1

A lithium-ion secondary battery and an electric apparatus are provided. The lithium-ion secondary battery includes an electrolyte. The electrolyte includes alkali metal ions having an ionic radius greater than a radius of lithium ions and a film-forming additive. Based on a total mass of the electrolyte, a mass percentage A of the alkali metal ions and a mass percentage B of the additive satisfy 0.10≤B/A≤6×104.

ELECTROLYTE FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME

Resumen de: US20260074285A1

An electrolyte for a lithium secondary battery according to exemplary embodiments includes an additive including a compound having a specific structure, an organic solvent and a lithium salt. Accordingly, a lithium secondary battery including the electrolyte for a lithium secondary battery exhibits improved low-temperature properties such as resistance and capacity retention, and high-temperature stability.

METHOD OF PRECHARGING SECONDARY BATTERY AND METHOD OF MANUFACTURING SECONDARY BATTERY EMPLOYING THE PRECHARGING

Resumen de: US20260074401A1

A method of manufacturing a secondary battery, the method including providing a battery can with an opening and a terminal-side surface, the terminal-side surface including a terminal, providing a cover, the cover being bonded onto the opening of the battery can, assembling an electrode assembly, accommodating the electrode assembly in the battery can and mounting the same, such that the electrode assembly faces the opening, injecting an electrolyte into the battery can within which the electrode assembly is accommodated, pressurizing and precharging the electrode assembly, and bonding the cover onto the opening of the battery can.

SURGICAL INSTRUMENT AND ASSEMBLING METHOD THEREFOR

Resumen de: US20260074542A1

The present application relates to a surgical instrument and an assembling method therefor. A power source discharging mechanism includes a circuit board and a sliding member. The circuit board includes a discharging circuit, a conductive sheet, and a conductive contact surface. A fixed terminal of the conductive sheet is fixed to the circuit board, and the conductive contact surface faces an extension section of the conductive sheet. The sliding member is opposite to the conductive sheet and can linearly move relative to the power source assembly. At a first position, at least a portion of the extension section of the conductive sheet is separated from the conductive contact surface. At a second position, at least a portion of the extension section of the conductive sheet is in contact with the conductive contact surface.

BATTERY CELL, BATTERY, AND POWER CONSUMING APPARATUS

Resumen de: US20260074375A1

This application relates to the field of power batteries and provides a battery cell, a battery, and a power-consuming apparatus. The battery cell includes an adapter with a protruding welding point and a covering member connected to the adapter. An accommodating cavity is formed between the covering member and the adapter to house at least part of the welding point. The structure allows the covering member to fit more closely to the adapter around the welding point, reducing suspension or detachment of the covering member. As a result, adhesion between the covering member and the adapter is improved, enhancing structural reliability and performance of the battery cell.

CONDUCTIVE MODULE, COVER PLATE ASSEMBLY, AND BATTERY CELL

Resumen de: US20260074397A1

A conductive module, a cover plate assembly, and a battery cell are provided. The conductive module includes a pole, where the pole includes a metal post and a metal layer bonded on a surface of the metal post. The metal layer includes a clamping portion; and a terminal pressing block connected to the pole. The clamping portion is clamped between the metal post and the terminal pressing block. The pole is provided to include the metal post and the metal layer, and the pole is connected to the terminal pressing block. A portion (i.e., the clamping portion) of the metal layer is clamped between the metal post and the terminal pressing block.

BATTERY PACK CASE AND BATTERY PACK INCLUDING THE SAME

Resumen de: US20260074342A1

A battery pack case according to an embodiment of the present disclosure includes a housing having an accommodation space therein, and a partition plate disposed in the accommodation space to partition the accommodation space, wherein the partition plate may include a first member forming an outer surface of the partition plate, and a second member disposed inside the first member and connected to an inner surface of the first member, the second member being disposed in a diagonal direction with respect to an outer surface of the first member.

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.

POSITIVE ELECTRODE ACTIVE MATERIAL, AND PREPARATION METHOD THEREFOR AND USE THEREOF

Resumen de: WO2026051476A1

Provided in the present application are a positive electrode active material, and a preparation method therefor and the use thereof. The positive electrode active material comprises an LiMnxFe1-xPO4 inner core and a carbon coating layer covering at least part of the surface of the inner core, wherein 0≤x<1. The compaction density of the positive electrode active material is not lower than 2.28 g/cm3; and the impedance of the positive electrode active material is not higher than 1,500 Ω. The compaction density and impedance of the positive electrode active material provided in the present application are defined, such that the positive electrode active material has a relatively high compaction density and good rate capability; and when the positive electrode active material is applied to a lithium-ion battery, the specific capacity, energy density and rate capability of the lithium-ion battery can be improved.

ULTRASONIC WELDING APPARATUS AND ULTRASONIC WELDING METHOD

Nº publicación: US20260070149A1 12/03/2026

Solicitante:

LG ENERGY SOLUTION LTD [KR]
LG ENERGY SOLUTION, LTD

Resumen de: US20260070149A1

An ultrasonic welding method including arranging a pressing force measuring anvil including a pressing force measuring sensor under a horn, moving the horn downward, pressing the pressing force measuring anvil, and measuring a pressing force of the horn using the pressing force measuring sensor, comparing the measured pressing force of the horn with a preset pressing force range and controlling a down stroke of the horn so that the pressing force of the horn is within the preset pressing force range, changing the pressing force measuring anvil with a welding anvil and positioning the welding anvil under the horn after the down stroke of the horn is adjusted, supporting welding target members on the welding anvil, and moving the horn by the adjusted down stroke and ultrasonically welding the welding target members on the welding anvil.