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1362
results.
Updated on
02/05/2026 [08:13:00]
Results 100 to 125 of 1362
Absstract of: US20260121070A1
0000 Disclosed are a three-dimensional composite copper foil for a solid-state lithium battery and a preparation method therefor. The three-dimensional composite copper foil for the solid-state lithium battery includes a support layer, the support layer is a porous membrane layer or a fibrous membrane layer, a first metallization layer and a second metallization layer are arranged on two faces of the support layer, respectively, a third metallization layer is arranged on one face of the first metallization layer away from the support layer, a fourth metallization layer is arranged on one face of the second metallization layer away from the support layer, a first conductive copper layer is arranged on one face of the third metallization layer away from the first metallization layer, and a second conductive copper layer is arranged on one face of the fourth metallization layer away from the second metallization layer.
Absstract of: US20260121119A1
0000 The present disclosure provides a battery. The battery includes a positive electrode plate, a negative electrode plate, a separator, and an electrolyte. The negative electrode plate has a porosity of φ in unit of %. The separator has a thickness of t in unit of μm, and a pore size of R in unit of μm. A ratio of a total mass of the electrolyte to a discharge capacity of the battery is N in unit of g/Ah. The electrolyte includes an electrolyte additive. The electrolyte additive includes a sulfate ester compound and a first lithium salt additive. The first lithium salt additive includes an oxalate-containing lithium salt. The sulfate ester compound has a structure represented by Formula I. A mass fraction of the sulfate ester compound in the electrolyte is C in unit of %. The battery satisfies Formula A: 0000 0 . 0 1 ≤ φ × N × C 1 0 4 × t × R ≤ 0.5 . Formula A
Absstract of: US20260121431A1
An electronic device includes a charging circuit and a bypass circuit. The charging circuit adapted to charge a battery of the electronic device. The bypass circuit is connected in parallel with the charging circuit. A controller is configured to selectively turn on or turn off the bypass circuit with a first switch connected in series with the bypass circuit and to selectively turn on or turn off the charging circuit with a second switch connected in series with the charging circuit. The controller further configured to: measure a first voltage from upstream of the charging circuit with both the bypass circuit and the charging circuit being turned off; measure a second voltage from upstream of the charging circuit with the bypass circuit being turned on and the charging circuit being turned off; compare the first voltage with the second voltage; and determine a charging conductivity based on the comparison result.
Absstract of: US20260116263A1
The present disclosure relates to a computer system and a method for controlling a power system of a vehicle. The power system includes a fuel cell system and an energy storage system including one or more batteries. The method includes: predicting a refuelling event during which the vehicle is expected to refuel a fuel tank of the fuel cell system at a fuelling station, estimating an instance for initiating a shutdown process of the fuel cell system, wherein after the estimated instance the vehicle is expected to be operated in a first operating mode, until an arrival to the fuelling station, and controlling the power system in a way such that the state-of-energy level of the energy storage system is equal to or higher than the determined state-of-energy threshold level when the vehicle reaches the estimated instance.
Absstract of: 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.
Absstract of: 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
Absstract of: 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.
Absstract of: 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.
Absstract of: WO2026086099A1
The present application provides a large-particle lithium-rich manganese-based precursor and a preparation method therefor, and a positive electrode material and the use. The preparation method comprises: (1) introducing a first mixed salt solution, a precipitant solution and a complexing agent solution into a reaction base solution in a co-current mode, and performing a first co-precipitation reaction to obtain a first slurry; and (2) introducing a second mixed salt solution, a precipitant solution and a complexing agent solution into the first slurry obtained in step (1) in a co-current mode, and performing a second co-precipitation reaction to obtain a large-particle lithium-rich manganese-based precursor, wherein the second mixed salt solution contains an anionic surfactant. The anionic surfactant contained in the second mixed salt solution of the preparation method can reduce the surface tension of the reaction slurry, and alleviate the problem of uneven surface stress distribution in the synthesis process; in addition, in the preparation method, the anionic surfactant as such is negatively charged, and primary particles on the surface are more closely bonded through electrostatic attraction; furthermore, the preparation method involves a simple process and has low requirements for equipment.
Absstract of: 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.
Absstract of: 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.
Absstract of: US20260121044A1
0000 Provided are a cathode active material and a preparation method thereof, a positive electrode plate, a battery, and an electrical device. The cathode active material includes secondary particles. The secondary particles are formed with aggregated primary particles. The secondary particles include open pores and closed pores. An open pore porosity P
Absstract of: US20260121215A1
0000 A battery pack includes a box and a battery module arranged in the box. The battery module includes a pair of battery assemblies and a module bracket. Each battery assembly includes a support tray and a plurality of cells. The support tray is penetrated with through holes for arranging. pressure relief valves of the cells. The pressure relief valves of the cells of the pair of battery assemblies are arranged facing each other. The support tray is provided with pressure relief holes. The module bracket is arranged between a pair of the support trays and provided with first pressure relief channels. A pressure relief cavity is provided between the pair of support trays. The box is provided with third pressure relief channels. The through holes, the pressure relief cavity, the first pressure relief channels, the third pressure relief channels, and the pressure relief holes are in communication.
Absstract of: US20260121016A1
A cathode material, and a preparation method therefor and the use thereof. The preparation method comprises the following steps: (1) mixing a vanadium source, a complexing agent and a high-molecular polymer with an organic solvent to obtain a mixed solution; (2) respectively performing an atomization treatment on the mixed solution and a metal salt solution, and respectively conveying the mixed solution and the metal salt solution with a gas into a spray pyrolysis furnace to perform mixed pyrolysis, so as to obtain a coated precursor; and (3) mixing the coated precursor with a lithium source or a sodium source, and sintering same to obtain a cathode material. By using a spray pyrolysis method, the tap density and uniformity of the precursor are improved while the precursor is coated, such that a cathode material having good performance can be prepared.
Absstract of: US20260121231A1
A separator substrate, a separator, an electrode assembly, and an electrochemical device are provided. The separator substrate has different surface characteristics of opposite surfaces thereof, and the separator including the same has opposite sides of different adhesion strengths from each other, and has 10% or less of a deviation of electrode adhesion strength.
Absstract of: WO2026086386A1
Disclosed in the present application are a positive electrode material and a preparation method therefor, a positive electrode sheet, a secondary battery and an electronic device. The positive electrode material comprises an M1 element, an M2 element and an X element, wherein the M1 element comprises one or more of vanadium, niobium or tantalum; the M2 element comprises one or more of lanthanum, cerium, praseodymium, samarium, dysprosium, ytterbium, yttrium or lutetium; and the X element comprises one or more of fluorine, chlorine, sulfur, nitrogen or boron. The present application can improve the high-temperature cycle performance and prolong the cycle life.
Absstract of: WO2026086098A1
The present application provides a core-shell structured positive electrode precursor, a preparation method therefor and a use thereof. The core-shell structured positive electrode precursor sequentially comprises, from inside to outside, a precursor core and a precursor shell layer. The porosity of the precursor core is greater than that of the precursor shell layer, and primary grains in the precursor shell layer are directionally arranged in the radial direction of the precursor shell layer. The core-shell structured positive electrode precursor provided in the present application has a high tap density and a low impurity content, and can significantly reduce the sintering temperature when a single crystal positive electrode material is prepared, thereby effectively inhibiting the phenomenon of lithium-nickel mixing in the positive electrode material, avoiding agglomeration of particles of the positive electrode material, and improving the single crystallinity of the positive electrode material, and thus improving the electrochemical performance of a battery.
Absstract of: US20260116770A1
A production method for a solid electrolyte of the present disclosure is a production method for a halide solid electrolyte containing Li, Ti, M, and X. M is at least one element selected from metal elements (excluding Li and Ti) and metalloid elements, and X is at least one selected from F, Cl, Br, and I. The production method includes: (A) performing halogenation treatment on at least one Li source selected from a simple oxide and a simple carbonate of Li, at least one Ti source selected from a simple oxide and a simple carbonate of Ti, and at least one M source selected from a simple oxide and a simple carbonate of M, to obtain simple halides of Li, Ti, and M, respectively; and (B) synthesizing the halide solid electrolyte using the simple halides of Li, Ti, and M.
Absstract of: WO2026085947A1
The present invention relates to an extraction technique for low-cost recovery of battery-grade manganese sulfate from a manganese-containing nickel-cobalt raw material, the extraction technique comprising the following steps: (1) subjecting an extractant and liquid caustic soda to saponification to obtain an organic phase, wherein a P204 extractant is mixed with solvent oil for use, with the concentration of the P204 being 5%-50% and the balance being the solvent oil, and the saponification rate of the saponification of the mixed extractant and liquid caustic soda is less than or equal to 23.7%; (2) mixing a saponified organic phase in step (1) with a feed liquid for P204 extraction (a manganese-containing nickel-cobalt raw material liquid), and then performing an extraction operation by using a new extractor to obtain an impurity liquid and a raffinate obtained from P204 impurity co-extraction and containing less than or equal to 1 ppm of calcium, wherein the pH is controlled at 0-4.5 during extraction, and the post-extraction O/A ratio is equal to 0.415-5.2; and (3) sequentially performing the steps of extraction, scrubbing, manganese stripping, iron scrubbing and water washing on the raffinate obtained from P204 impurity co-extraction in step (2), thereby completing the treatment. The process is used for producing battery-grade manganese sulfate, without first enriching manganese and impurities into a manganese-enriched liquid and then using a C272 extractant to achieve m
Absstract of: WO2026086422A1
Provided are a battery multi-stacked-cell structure and an assembly method therefor, and a battery module. The battery multi-stacked-cell structure comprises cross-shaped connectors and a plurality of stacked cell units (10), wherein each stacked cell unit (10) comprises a stacked cell body (101) and tabs arranged at the ends of the stacked cell body (101); each connecting arm of the cross-shaped connectors is connected to the tabs of at least one stacked cell unit (10); the same cross-shaped connector is connected to the tabs of the plurality of stacked cell units (10) that have the same polarity; and the plurality of stacked cell units (10) are assembled to form a multi-stacked-cell assembly. The battery multi-stacked-cell structure can realize parallel assembly of various numbers of stacked cells, thereby effectively improving the process adaptability of a blade battery and improving the energy density of the blade battery.
Absstract of: US20260121113A1
A halide solid electrolyte contains Li, Al, M, and X. M is at least one element selected from metal elements (excluding Li and Al) and metalloid elements, and X is at least one selected from F, Cl, Br, and I. The solid electrolyte includes a first particle group of first particles made of compound A containing Al and X, and a second particle group of second particles made of compound B not containing Al but containing M and X. In the first particle group, a coefficient of variation CVAl (CVAl=(σAl/AAl)×100) obtained using a standard deviation σAl and an average value AAl of a mass ratio Al/X is 10% or less. In the second particle group, a coefficient of variation CVM (CVM=(σM/AM)×100) obtained using a standard deviation σM and an average value AM of a mass ratio M/X is 20% or less.
Absstract of: US20260116774A1
A method for producing a fluoride of the present disclosure includes firing a mixture including a titanium oxide, an aluminum oxide, a raw material fluoride having composition different from that of the fluoride to be produced, and a lithium-containing compound in an inert gas atmosphere. The titanium oxide includes TiO2. The aluminum oxide includes Al2O3. The raw material fluoride includes NH4F. The lithium-containing compound includes at least one selected from the group consisting of lithium fluoride, lithium carbonate, and lithium nitrate.
Absstract of: US20260121074A1
A metal foil includes a core portion that has a first side and a second side located opposite to the first side and is made of a metal material, and a cladding portion that is located on at least one side of the core portion and contains zinc as a base material, wherein, when each of the two sides of the metal foil is individually subjected to X-ray diffraction measurement, the intensity ratio of the peak intensity S(002) of a peak derived from the (002) plane of zinc to the peak intensity S(101) of a peak derived from the (101) plane of zinc is 1.01 or more on each side.
Absstract of: US20260116693A1
0000 A device includes: an adhesive tape attaching assembly, where the adhesive tape attaching assembly includes a first adhesive tape attaching mechanism and a second adhesive tape attaching mechanism; and a control assembly configured to control the adhesive tape attaching assembly to move along a first direction toward a to-be-attached workpiece. The first adhesive tape attaching mechanism is configured to adhere a first portion of an adhesive tape to a region of a first wall of the to-be-attached workpiece close to a second wall of the to-be-attached workpiece, the second adhesive tape attaching mechanism is configured to adhere a second portion of the adhesive tape to a region of the second wall close to the first wall, the first portion is connected to the second portion, and the first wall intersects with the second wall.
Nº publicación: US20260121252A1 30/04/2026
Applicant:
NINGDE AMPEREX TECH LIMITED [CN]
Ningde Amperex Technology Limited
Absstract of: US20260121252A1
A housing includes an accommodation cavity. The electrode assembly is accommodated in the accommodation cavity. The first tab group is connected to the electrode assembly. The first tab group includes a first outer-layer tab, an inner-layer tab, and a second outer-layer tab sequentially disposed along a third direction. At least one inner-layer tab is disposed. The first adapter piece includes a first protruding portion and a first adapter portion. The first protruding portion extends out of the housing along a first direction. The first adapter portion is located in the housing. When viewed along the first direction, the first adapter portion is located on one side of the second outer-layer tab facing away from the inner-layer tab. The first adapter portion is connected to the second outer-layer tab. The first direction is perpendicular to the third direction. The third direction is a thickness direction of the electrode assembly.
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