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1635
resultados
Última actualización
11/03/2026 [07:42:00]
Resultados 275 a 300 de 1635
Resumen de: US20260066375A1
A multi-field synergistic repair method for retired batteries and devices thereof relates to the technical field of battery repair, which comprises the following steps: charging and discharging a retired battery in sequence; the charging and/or discharging are performed under the action of synergistic fields to obtain a regenerated battery; the synergistic fields are at least one of magnetic fields, pressure fields or temperature fields; the charging and discharging are cycled 1 time to 20 times in total. The invention solves the problems of complex process, high cost and poor effect of existing battery recycling processes; the battery performance can be restored to more than 80% of the initial capacity of the new battery, realizing the regeneration of lithium-ion batteries and sodium-ion batteries; the battery regeneration method has the advantages of no need to disassemble the battery, short time, low energy consumption, low cost, and zero emission.
Resumen de: US20260066353A1
A method for manufacturing a secondary battery, a secondary battery manufactured by the method, an energy storage system, and an electric device are provided. The method includes: providing an electrode sheet; measuring an actual porosity of the electrode sheet; determining whether the electrode sheet is qualified based on the actual porosity of the electrode sheet; in response to the electrode sheet being determined to qualified, forming the secondary battery using the electrode sheet; in response to the electrode sheet being determined to be unqualified, performing laser processing to form laser-formed pores on the electrode sheet, and repeating the measuring operation and the determining operation until the electrode sheet is qualified. In this way, the uniformity of electrode sheet porosity is improved, the wettability of the electrode sheet is enhanced, and the electrical performance of the secondary battery is improved.
Resumen de: US20260062510A1
A polyol composition, a composition for polyurethane preparation comprising the polyol composition, and a battery module according to the present invention comprise a compound represented by chemical formula 1 (see the description of the invention). In addition, the polyol composition according to the present invention comprises a first unit derived from at least one type of 1,4:3,6-dianhydrohexitol and a second unit derived from an alkylene oxide, and has a degree of unsaturation of 0.02 meq/g or less according to the following measurement method (see the description of the invention).
Resumen de: US20260062317A1
Disclosed are a positive electrode active material for a rechargeable lithium battery and a method for preparing the same, a positive electrode active material including: a core particle comprising a lithium nickel-based composite oxide represented by Chemical Formula 11; and a coating layer located on a surface of the core particle and comprising one element or a combination thereof selected from the group consisting of Al, B, Ba, Ca, Ce, Co, Cr, Cu, Fe, Mg, Mn, Mo, Nb, Si, Sn, Sr, Ti, V, W, Y, Zn, and Zr, wherein the positive electrode active material has a value defined by Mathematical Formula 1 of greater than or equal to about 5.wherein, in Chemical Formula 11, 0.9≤a11≤1.2, 0.3≤x11<1, 0
Resumen de: US20260062316A1
A method is provided for removing a binder from a spent cathode active material. The method includes mixing the spent cathode active material with water to form a first mixture. The spent cathode active material includes cathode active material particles and the binder. The method further includes grinding the first mixture to separate the binder from the cathode active material particles, mixing the first mixture with a hydrocarbon liquid, agitating the hydrocarbon liquid and the first mixture and forming an oil phase and a water phase, and separating the oil phase from the water phase. The first mixture contains the cathode active material particles, the binder and the water. The oil phase contains the hydrocarbon liquid and the binder, and the water phase contains the cathode active material particles and the water.
Resumen de: US20260062321A1
A method for electrochemical remediation of trace organic contaminants from water comprises pumping water containing a trace organic contaminant through an electrochemical cell comprising an anode and a cathode in circuit with a DC power source to apply an electric potential across the electrodes; wherein the anode contacts a catalyst for electrochemically degrading the trace organic contaminant; and the catalyst comprises a transition metal oxide (TMO) from waste lithium battery cathodes. An apparatus suitable for performing the method also is described.
Resumen de: US20260066302A1
A cathode for a secondary battery according to embodiments of the present disclosure includes a cathode current collector and a cathode active material layer, and the cathode active material layer includes a cathode active material and a binder. The cathode active material includes first particles including lithium iron phosphate. The binder includes a first fluorine-based polymer and a second fluorine-based polymer having a hydrophilic functional group bound to the first fluorine-based polymer.
Resumen de: US20260066350A1
Electrolytes and electrolyte additives for use in energy storage devices, comprising cyclic carbonate compounds.
Resumen de: US20260066361A1
A secondary battery, includes an electrode assembly including a first electrode plate, a second electrode plate, and a separator wherein the electrode assembly is wound; a can for accommodating the electrode assembly and an electrolyte; a finishing tape including a film layer comprising a nylon material and an adhesive layer for attaching the film layer to the electrode assembly, wherein the finishing tape at least partially surrounds the electrode assembly; and a cap assembly that seals the can.
Resumen de: US20260066352A1
An electrolyte wetting apparatus includes a first mold configured to wrap a case of a secondary battery, an interior of the case accommodating an electrode assembly and an electrolyte that impregnates the electrode assembly; a magnetorheological fluid configured to wrap the first mold; and a magnetic field application device configured to apply a time-varying magnetic field to the magnetorheological fluid so that the secondary battery vibrates.
Resumen de: US20260066338A1
Provided are a conformable polymer coated lithium metal electrode, a solid electrolyte, and an inorganic molten salt electrolyte for a rechargeable lithium metal battery. Systems and methods are also provided for controlling the electroplating of lithium metal onto negative electrodes to allow for more rapid recharging of lithium metal batteries while minimizing dendrite formation.
Resumen de: US20260066335A1
A cathode active material for a lithium secondary battery according to exemplary embodiments includes lithium metal oxide particles and a coating portion attached to a surface of the lithium metal oxide particles through a chemical bond. The coating portion includes a thiol group. The cathode active material for a lithium secondary battery according to exemplary embodiments may suppress the decomposition of the electrolyte, thereby improving the cycle life characteristics of the secondary battery.
Resumen de: US20260066331A1
Disclosed are a press plate capable of effectively flattening a pouch-type cell and also a method of manufacturing a pouch-type cell using the same. The press plate for flattening a pouch-type cell includes a surface facing the pouch-type cell, and the surface facing the pouch-type cell includes at least a portion made of an elastic material.
Resumen de: WO2026048547A1
Disclosed is a nonaqueous electrolyte secondary battery (10) which is characterized by comprising: an electrode body (14) that is obtained by winding a positive electrode (11) and a negative electrode (12) with a separator (13) being interposed therebetween; a nonaqueous electrolyte; and an outer package can (16) that houses the electrode body (14) and the nonaqueous electrolyte. This nonaqueous electrolyte secondary battery (10) is also characterized in that: the negative electrode (12) has a negative electrode core body (40) and a negative electrode mixture layer (41) that is provided on the negative electrode core body (40); an exposed part (42) in which the surface of the negative electrode core body (40) is exposed is formed on the outer peripheral surface of the electrode body (14); the exposed part (42) is in contact with the inner surface of the outer package can (16); the nonaqueous electrolyte contains a heterocyclic compound that comprises at least one electron-withdrawing group R and a heterocyclic ring; the electron-withdrawing group R contains oxygen and/or nitrogen; and the heterocyclic ring contains nitrogen and sulfur.
Resumen de: WO2026048595A1
This lithium secondary battery comprises: a positive electrode; a negative electrode facing the positive electrode; a separator disposed between the positive electrode and the negative electrode; and a nonaqueous electrolyte. The negative electrode has a negative electrode current collector and a negative electrode tab electrically connected to the negative electrode current collector. In the negative electrode, lithium metal is deposited on the negative electrode current collector during charging, and lithium metal is dissolved in the nonaqueous electrolyte during discharging. The negative electrode tab contains stainless steel at least in a connection portion with the negative electrode current collector.
Resumen de: WO2026048546A1
A positive electrode (11) has a positive electrode core body (30), and a positive electrode mixture layer (31) and a protective layer (33) that are formed on the positive electrode core body (30). A mixture layer non-formation portion (32) at which the positive electrode mixture layer (31) is not formed is provided to a winding start end part (11B) of the positive electrode (11). The protective layer (33) contains an insulating material as the main component, and has a first region (34) that covers the mixture layer non-formation portion (32), and a second region (35) that is disposed between the positive electrode core body (30) and the positive electrode mixture layer (31). The volume resistivity of the protective layer (33) in the second region (35) is less than the volume resistivity of the protective layer (33) in the first region (34).
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.
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.
Resumen de: WO2026045584A1
A battery cell and a battery system. The battery cell comprises a first tab, a first electrode sheet and a first switching member, wherein the first electrode sheet can lead out an electrode by means of the first tab; within a first temperature range, the first switching member has a first form, and the first tab is conductively connected to the first electrode sheet; and within a second temperature range, the first switching member has a second form, and the first tab is non-conductively connected to the first electrode sheet.
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.
Resumen de: US20260062305A1
Systems and methods for obtaining lithium-containing materials from liquid streams are generally described. In some instances, aqueous streams are treated with a lithium selective agent prior to and/or following electrolysis of the stream to produce basic species such as hydroxide ions. In some cases, the lithium selective agent is a solids-forming agent such as a precipitant (e.g., phosphoric acid/phosphate) or a solid sorbent (e.g., aluminum hydroxide). The electrogenerated basic species may induce carbon dioxide capture to form carbonate and/or bicarbonate anions. Coupling of the electrolytic processes and/or carbon dioxide capture processes to the lithium selective separation processes may promote efficient generation of value-added lithium-containing materials such as lithium hydroxide and/or lithium carbonate. Some embodiments involve the electrolytic and/or thermal regeneration of the lithium selective agent, and/or the recycling of electrogenerated acidic species, which can also contribute to an efficient, cost-effective system for obtaining lithium-containing materials.
Resumen de: US20260062293A1
When producing lithium sulfide by a reaction between a lithium raw material and hydrogen sulfide, the reaction is performed under relatively mild conditions compared to the conventional technology, so frequent repairs or replacements due to corrosion and breakdown of reactors and piping are not required, thereby improving the economic efficiency of the process. Since unreacted hydrogen sulfide and a solvent from which moisture has been removed are reused, process costs are reduced so that economic feasibility in mass production is ensured. Furthermore, moisture and water vapor generated in a lithium sulfide production reaction are effectively removed to prevent a reverse reaction into lithium hydroxide and promote a forward reaction so that high-quality lithium sulfide can be produced with high purity and high yield. In addition, particle size may be controlled in the micrometer range without a separate crushing space or crushing stage, thereby providing excellent convenience and mass production.
Resumen de: US20260062292A1
When producing lithium sulfide by a reaction between a lithium raw material and hydrogen sulfide, the reaction is performed under relatively mild conditions compared to the conventional technology, so frequent repairs or replacements due to corrosion and breakdown of reactors and piping are not required, thereby improving the economic efficiency of the process. Since unreacted hydrogen sulfide and a solvent from which moisture has been removed are reused, process costs are reduced so that economic feasibility in mass production is ensured. Furthermore, moisture and water vapor generated in a lithium sulfide production reaction are effectively removed to prevent a reverse reaction into lithium hydroxide and promote a forward reaction so that high-quality lithium sulfide can be produced with high purity and high yield. In addition, particle size may be controlled in the micrometer range without a separate crushing space or crushing stage, thereby providing excellent convenience and mass production.
Resumen de: US20260062291A1
The present invention relates to a method of producing lithium sulfide, and according to the present invention, when producing lithium sulfide by a reaction between a lithium raw material and hydrogen sulfide, the reaction is performed under relatively mild conditions compared to the conventional technology, so frequent repairs or replacements due to corrosion and breakdown of reactors and piping are not required, thereby improving the economic efficiency of the process. In addition, since unreacted hydrogen sulfide and a solvent from which moisture has been removed are reused, process costs are reduced so that economic feasibility in mass production is ensured. Furthermore, moisture and water vapor generated in a lithium sulfide production reaction are effectively removed to prevent a reverse reaction into lithium hydroxide and promote a forward reaction so that high-quality lithium sulfide can be produced with high purity and high yield.
Nº publicación: WO2026045437A1 05/03/2026
Solicitante:
NINGDE AMPEREX TECH LIMITED [CN]
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Resumen de: WO2026045437A1
Provided are a secondary battery and an electronic device comprising same. The secondary battery comprises a negative electrode sheet and an electrolyte. The electrolyte comprises a compound represented by formula I. Based on the total mass of the electrolyte, the mass percentage content of the compound represented by formula I is WI％, where WI is from 0.05 to 50. The negative electrode sheet comprises a negative electrode current collector and a negative electrode material layer arranged on at least one surface of the negative electrode current collector. The thickness of a single side of the negative electrode material layer is D μm. A plurality of recesses are arranged on a surface of the negative electrode material layer. The depth of a single recess is d μm, where d < D, and 0.005 ≤ WI/d ≤ 5. The secondary battery has improved high-temperature cycling performance and low-temperature discharge performance.
BOPI
Sede Electrónica
