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Method to extend the total cumulative lifespan of a battery by reducing ambient temperature

Resumen de: US20260121151A1

This invention extends battery lifetime by reducing ambient temperature through these steps: adjusting ambient temperature, conducting degradation tests to obtain SOH degradation curves under various temperatures; analyzing the real-time and long-term effects of temperature drops on SOH loss and lifetime gain; balancing negative SOH impacts and positive lifetime gains to calculate the optimal ambient temperature; dynamically regulating ambient temperature to keep battery temperature within ±2° C. of optimal. Selecting this optimal temperature doubles the battery's total cumulative lifetime without seriously affecting single-charge performance, significantly reducing replacement and maintenance costs.

DEVICE FOR CONNECTING MATERIAL WEBS FOR THE PRODUCTION OF ENERGY CELLS

Resumen de: US20260116690A1

The invention relates to a device for joining webs of material for the production of energy cells, in particular electrode webs, wherein a running-out web of material can be joined to a new web of material. A first pivoting element is provided for the new web of material and a second pivoting element is provided for the running-out web of material, wherein the first pivoting element is adapted to hold the leading end of the new web of material and wherein the second pivoting element is adapted to deflect the running-out web of material in the direction of the first pivoting element. A cutting device is provided, which is adapted to cut or weaken the running-out web of material deflected by the second pivoting element to produce a web end of the running-out web of material at a separating line. The device is adapted to accelerate the leading end of the new web of material with the first pivoting element and to synchronize with the running-out web of material at the speed at which the web end of the running-out web of material deflected by the second pivoting element is conveyed. The leading end of the new web of material can be joined to the web end of the running-out web of material between the first and second pivoting elements by means of at least one adhesive tape.

ELECTROCHEMICAL DEVICE AND ELECTRONIC DEVICE

Resumen de: US20260121068A1

An electrochemical device includes a negative electrode plate. The negative electrode plate includes a negative electrode current collector, a first negative electrode active material layer, and a second negative electrode active material layer, and the first negative electrode active material layer is located between the negative electrode current collector and the second negative electrode active material layer. The first negative electrode active material layer includes a first silicon-based material, the second negative electrode active material layer includes a second silicon-based material, Dv10 of the first silicon-based material is 3 μm to 10 μm, Dv10 of the second silicon-based material is 1 μm to 4 μm, and Dv10 refers to a particle size corresponding to a cumulative volume percentage of 10% in a volume-based particle size distribution starting from small particles.

Battery Extinguishing Container

Resumen de: US20260121217A1

An energy storage container is proposed which comprises an exhaust air outlet and a feed device. The feed device is arranged to add a dilution fluid to the fire fluid flowing through the exhaust air outlet in the event of a fire.

Battery and Electronic Device

Resumen de: US20260121128A1

In a circumference direction of a roll core of a battery cell of a battery, a positive electrode tab is electrically connected to a positive electrode plate at a first location, and a negative electrode tab is electrically connected to a negative electrode plate at a second location, where a winding end of the positive electrode plate extends beyond a winding end of the negative electrode plate, and the first location is any location at which the positive electrode plate extends beyond the winding end of the negative electrode plate. A part of the positive electrode plate between the second location and the first location is a positive electrode extension section, at least an inner surface of the positive electrode extension section is passivated, and the inner surface is a surface of a side that is of the positive electrode extension section and that faces the negative electrode plate.

A METHOD FOR SEPARATING MANGANESE IN LEACHING OF COBALT AND/OR NICKEL FROM DELITHIATED SOLID RAW MATERIAL AND USE OF DELITHIATED SOLID RAW MATERIAL COMPRISING CATHODE MATERIAL

Resumen de: US20260116775A1

The present disclosure provides a method for separating manganese in leaching of cobalt and/or nickel from delithiated solid raw material, the method comprising providing delithiated solid raw material comprising cobalt and/or nickel, providing5 acidic solution, combining the delithiated solid raw material with the acidic solution, allowing cobalt and/or nickel in the delithiated solid raw material to leach to obtain a leach solution comprising cobalt and/or nickel, providing manganese in the leach solution as the only reducing agent, and allowing the manganese to precipitate as manganese dioxide while the cobalt and/or nickel are dissolved. The present0 disclosure also provides use of delithiated solid raw material comprising cathode material in the method.

CONNECTOR

Resumen de: US20260121236A1

A connector may include a connector housing, a terminal configured to be inserted into the connector housing in a predetermined insertion direction, and a terminal block configured to be inserted into the connector housing, the terminal block surrounding the terminal, and being configured to restrict movement of the terminal in an opposite direction to the insertion direction. In addition, the connector housing may include a first protrusion configured to lock the terminal block.

Dreidimensionale Verbundkupferfolie für Festkörper-Lithiumbatterien und deren Herstellungsverfahren

Resumen de: DE102025122553A1

Die vorliegende Erfindung offenbart eine dreidimensionale Verbundkupferfolie für Festkörper-Lithiumbatterien und deren Herstellungsverfahren, wobei die dreidimensionale Verbundkupferfolie für Festkörper-Lithiumbatterien eine Trägerschicht umfasst, wobei die Trägerschicht als poröse Folienschicht oder eine Faserfolienschicht ausgebildet ist, und auf beiden Seiten der Trägerschicht jeweils eine erste Metallisierungsschicht und eine zweite Metallisierungsschicht angeordnet sind, wobei auf der von der Trägerschicht abgewandten Seite der ersten Metallisierungsschicht eine dritte Metallisierungsschicht angeordnet ist, auf der von der Trägerschicht abgewandten Seite der zweiten Metallisierungsschicht eine vierte Metallisierungsschicht angeordnet ist, auf der von der ersten Metallisierungsschicht abgewandten Seite der dritten Metallisierungsschicht eine erste leitfähige Kupferschicht angeordnet ist, und auf der von der zweiten Metallisierungsschicht abgewandten Seite der vierten Metallisierungsschicht eine zweite leitfähige Kupferschicht angeordnet ist. Die vorliegende Erfindung kann das Gewicht der Festkörper-Lithiumbatterien reduzieren und die Herstellungskosten senken, während gleichzeitig die Lade- und Entladerate der Festkörper-Lithiumbatterien erhöht werden.

SECONDARY BATTERY AND PREPARATION METHOD THEREOF, POSITIVE ELECTRODE PLATE, NEGATIVE ELECTRODE PLATE AND ELECTRICALLY-POWERED DEVICE

Resumen de: US20260121021A1

The present disclosure provides a secondary battery and a preparation method thereof, a positive electrode plate, a negative electrode plate and an electrically-powered device. A positive electrode active material includes a lithium iron phosphate (LFP) positive electrode material, Li2NiO2 and Li5FeO4. By adjusting a mixing ratio and limiting the mixing ratio, a specific capacity of active materials and an electrolyte filling coefficient to satisfy a specific relationship, the specific capacity and cycle performance of LFP batteries can be significantly improved, thereby making the lithium-ion batteries simultaneously exhibit superior energy density, cycle performance and safety.

FORMATION CONTROL METHOD FOR LITHIUM-ION BATTERY AND FORMATION SYSTEM

Resumen de: US20260121125A1

A formation control method and a formation system for a lithium-ion battery are disclosed. The method includes: acquiring an actual process parameter of the lithium-ion battery in a formation process and first data sets of a plurality of historical formation processes; determining a reference range of delithiation effect characteristics of the lithium replenishing additive based on the plurality of first data sets; predicting a delithiation effect characteristic quantity of the lithium replenishing additive in the formation process based on the actual process parameter; determining a deviation of the delithiation effect characteristic quantity from the reference range based on the delithiation effect characteristic quantity and the reference range; and determining, when the deviation is greater than a preset threshold, a to-be-adjusted parameter and an adjustment priority of the to-be-adjusted parameter based on the deviation, and adjusting the formation process based on the to-be-adjusted parameter and the adjustment priority.

CHARGING METHOD, AND MOBILE TERMINAL

Resumen de: US20260121139A1

Provided are a charging method, a mobile terminal and a computer-readable storage medium. The method includes operations as follows. Battery aging information is acquired in a case where a battery meets a preset trigger condition, where the preset trigger condition includes a trigger condition for switching from a constant current charging mode to a constant voltage charging mode. Charging is stopped for a preset duration, in a case where it is determined the battery aging information meets a charging acceleration condition. A voltage drop of the battery is obtained based on a voltage of the battery before stopping the charging and a voltage of the battery after stopping the charging, and the battery is charged based on the voltage drop.

ELECTRODE ASSEMBLY, ELECTROCHEMICAL APPARATUS, AND ELECTRIC APPARATUS

Resumen de: US20260121049A1

An electrode assembly includes a positive electrode material layer, where the positive electrode material layer of the electrode assembly includes a first positive electrode material LiMnxFe1-xPO4, a single-side thickness of the positive electrode material layer is T1 μm, and 22≤T1≤110. A length of a positive electrode plate is L1 mm. The electrode assembly further includes at least one positive electrode tab. When there is one positive electrode tab, the positive electrode tab is a centrally disposed tab structure; or when there are multiple positive electrode tabs, a ratio of the number of the positive electrode tabs to L1 is B, and 0.002≤B≤0.01.

HIGH-EFFICIENCY GRADING METHOD AND SYSTEM FOR LITHIUM-ION CELLS, AND STORAGE MEDIUM

Resumen de: US20260118440A1

The provided is a high-efficiency grading method and system for lithium-ion cells, and a storage medium. The provided aims to solve the problem of excessively long capacity grading time for lithium-ion cells. The high-efficiency grading method includes: obtaining discharge capacities C1, discharge endpoint voltages V1, rebound voltages V2, and remaining capacities C2 of lithium-ion cells; subjecting data of the obtained discharge capacities C1 or discharge endpoint voltages V1 to slicing and classification processing; plotting a scatter plot of the remaining capacities C2 against the rebound voltages V2 according to the remaining capacities C2 and corresponding rebound voltages V2 of the lithium-ion cells, performing curve fitting, and deriving remaining capacity prediction model equations; and calculating full discharge capacities of a new batch of lithium-ion cells. The provided omits the full discharge step in the conventional grading process, greatly shortening the capacity grading time and improving production efficiency.

PROCESS FOR PRODUCING A GRAPHITE-CONTAINING METAL OXIDE ELECTRODE, GRAPHITE-CONTAINING METAL OXIDE ELECTRODE, USE OF THE GRAPHITE-CONTAINING METAL OXIDE ELECTRODE AND ELECTROLYSIS CELL

Resumen de: US20260117411A1

A process for producing a graphite-containing metal oxide electrode includes: a) providing an electrolysis cell having an electrode, a further electrode and an aqueous and/or non-aqueous carbonyl-and cyano-free solvent, b) introducing black matter and a proton source into the solvent present in the electrolysis cell, where the black matter includes graphite-supported precious metal-free metal oxides, and c) applying a voltage to the electrode and the further electrode, such that the precious metal-free metal oxides and graphite provided by means of the black matter are deposited on the electrode to produce a graphite-containing metal oxide coating on the electrode for formation of the graphite-containing metal oxide electrode. The graphite-containing metal oxide electrode is used for production of hydrogen and/or oxygen by (photo)electrochemical water splitting and to an electrolysis cell for production of hydrogen and oxygen by (photo)electrochemical water splitting.

SECONDARY BATTERY AND ELECTRONIC DEVICE

Resumen de: US20260121181A1

A secondary battery includes a housing, an electrode assembly disposed in the housing, and a first conductive plate. The electrode assembly is a stacked structure. The electrode assembly includes a first electrode plate, a separator, and a second electrode plate that are stacked sequentially in a first direction. The first conductive plate is connected to the first electrode plate. The first conductive plate extends out of the housing along a second direction perpendicular to the first direction. The first electrode plate includes a first outer electrode plate located at an outermost layer of the electrode assembly. When viewed in a third direction perpendicular to both the first direction and the second direction, the first outer electrode plate includes a first region and a second region connected in the second direction. When viewed in the third direction, the first region includes a first end connected to the second region.

TEMPERATURE CONTROL DEVICE AND METHOD FOR MANUFACTURING TEMPERATURE CONTROL DEVICE

Resumen de: US20260115983A1

The temperature control device of the disclosure includes: a pair of metal plates; a resin flow path wall part sandwiched between the pair of metal plates; and a resin fixing part fixing one of the pair of metal plates to the other metal plate. Regarding the resin flow path wall part, an internal flow path for circulating a heat exchange medium is formed by at least one of the pair of metal plates and the resin flow path wall part. The resin fixing part and the resin flow path wall part are fused together. The crystallinity of the resin flow path wall part is lower than the crystallinity of the resin fixing part. A difference between the crystallinity of the resin flow path wall part and the crystallinity of the resin fixing part is 3% or more.

SHUNT, ELECTRIC DEVICE AND ENERGY STORAGE DEVICE THEREOF

Resumen de: US20260118386A1

A shunt includes a current sampling member. The current sampling member is provided with a first connection segment and a second connection segment. N sampling points are provided on each of the first connection segment and the second connection segment. The N sampling points on the first connection segment and the N sampling points on the second connection segment are symmetrically provided along the midline of the current sampling member, and each of sampling points is led out through an impedance member.

APPARATUS AND METHOD FOR REMOVING WRINKLES FROM SHEET MATERIAL

Resumen de: US20260116692A1

An apparatus for removing wrinkles from a sheet material, includes: an expander roll that rotates in a bent state with respect to a rotation axis bent to straighten and remove wrinkles formed in a sheet material being transferred to be wrinkle-removed; a roll bender that generates a bending moment to bend the expander roll; a roll rotator that rotates the expander roll; a roll controller that controls the operation of the roll bender and the roll rotator; a vision camera that photographs one surface of the sheet material being wrinkle-removed, so as to generate an input image; and a wrinkle detection module that detects wrinkles in the sheet material to be detected, using the input image.

BATTERY MODULE HAVING A LAMINATED BUSBAR ASSEMBLY

Resumen de: US20260121244A1

A battery module having first and second cylindrical battery cells is provided. The module includes a laminated busbar assembly having a bottom isolation layer, a first busbar layer, an intermediate isolation layer, and a second busbar layer. The bottom isolation layer has a first aperture that receives the positive electrode of the first battery cell therethrough and exposes a portion of the negative electrode of the first battery cell. The first busbar layer has a first aperture that receives the positive electrode of the first battery cell therethrough. A portion of the first busbar layer electrically contacts the negative electrode of the first battery cell. The intermediate isolation layer has a first aperture that receives the positive electrode of the first battery cell therethrough. The second busbar layer electrically contacts the positive electrode of the first battery cell.

OVEN DRYING APPARATUS AND ELECTRODE PLATE MANUFACTURING DEVICE

Resumen de: US20260118059A1

An oven drying apparatus and an electrode plate manufacturing device are described. The oven drying apparatus comprises an oven and a plurality of control units. The oven is formed by splicing a plurality of oven modules, each of the oven modules comprises an oven chamber and a blowing apparatus, the blowing apparatus is at least partially arranged inside the oven chamber, and the blowing apparatus is configured to blow air towards the material strip inside the oven chamber. The plurality of control units each corresponds to one of the plurality of oven modules, each of the control units is configured to control an outlet air parameter of the blowing apparatus of the corresponding oven module. The technical solution provided by the present application can improve the quality of batteries with reduced cost.

Bridge Structure and Secondary Battery Including the Same

Resumen de: US20260121256A1

A bridge structure for combining a first electrode assembly stacked with a second electrode assembly includes a first welding part to which a first electrode tab of the first electrode assembly is bonded; a second welding part to which a second electrode tab of the second electrode assembly is bonded; and a connecting part which connects the first welding part and the second welding part to each other. The first and second welding parts are offset from one another in a diagonal direction that is oblique to the stacking direction of the first and second electrode assemblies. The connecting part extends in the diagonal direction to connect the first and second welding parts to each other.

SINGLE-CRYSTAL TERNARY POSITIVE ELECTRODE MATERIAL AND PREPARATION METHOD AND APPLICATION THEREOF

Resumen de: US20260117414A1

The present application provides a single-crystal ternary positive electrode material and a preparation method and an application thereof. The single-crystal ternary positive electrode material satisfies the following relationships: 1 μm≤P<5 μm, 1≤D2/D1<10, and 3 μm

ELECTROLYTE ADDITIVE, ELECTROLYTE, AND BATTERY

Resumen de: US20260121121A1

The present disclosure discloses an electrolyte additive, an electrolyte, and a battery. The electrolyte additive includes a compound represented by Formula 1 and an electrophilic film-forming additive,In the compound represented by Formula 1, R1 and R2 are each independently fluorine atom or fluoroalkyl having 1 to 10 carbon atoms.

POWER TOOL

Resumen de: US20260121571A1

A power tool includes an electric motor; a housing; a first energy storage device including at least one first energy storage unit, where the first energy storage device is detachably mounted to the housing and further configured to be detachable from the housing to supply power to another power tool; a second energy storage device including at least one second energy storage unit; a charging circuit electrically connected to the second energy storage device and the first energy storage device; and a controller configured to control the charging circuit such that the first energy storage device charges the second energy storage device.

Thermal Management Assembly, Thermal Management System, and Vehicle

Nº publicación: US20260116259A1 30/04/2026

Solicitante:

SHENZHEN YINWANG INTELLIGENT TECH CO LTD [CN]
Shenzhen Yinwang Intelligent Technologies Co., Ltd.

Resumen de: US20260116259A1

A thermal management assembly includes a first valve body and a second valve body. The first valve body includes a first port, a second port, and a third port. The second valve body includes a first port, a second port, a third port, and a fourth port. The first port of the first valve body and the third port of the first valve body are separately connected to a heat exchange path of a battery. The second port of the first valve body is connected to the first port of the second valve body.