4results about How to "Increase the flash voltage" patented technology

The application provides an anode foil and a preparation method thereof. The preparation method comprises the following steps: providing an unformed foil, wherein the unformed foil comprises an aluminum foil base material and an aluminum powder sintering layer arranged on the surface of the aluminum foil base material; and sequentially performing the following processes on the unformed foil: water boiling, first-stage chemical conversion, second-stage chemical conversion, third-stage chemical conversion, power feeding treatment, fourth-stage chemical conversion, fifth-stage chemical conversion, first-stage heat treatment, first chemical conversion repair, first phosphoric acid treatment, second chemical conversion repair, second-stage heat treatment, third chemical conversion repair and second phosphoric acid treatment. The solutes of the electrolyte of the first-stage chemical conversion, the second-stage chemical conversion and the third-stage chemical conversion comprise citric acid, triammonium citrate, adipic acid, ammonium adipate, salicylic acid, hypophosphite, boric acid and ammonium salt, and the solvent is water. The solutes of the electrolyte of the fourth-stage chemical conversion and the fifth-stage chemical conversion comprise citric acid, triammonium citrate, sebacic acid, ammonium sebacate, salicylic acid, sodium hypophosphite, boric acid and ammonium salt, and the solvent is water. An anode foil prepared by the preparation method has a high specific capacity and a small hydration leakage current.

The invention discloses a high-reliability liquid capacitor and a preparation method thereof, and relates to the technical field of electrolytic capacitors. The high-reliability liquid capacitor comprises a core package and an aluminum shell, the core package comprises an anode foil, a cathode foil, an electrolyte solution and electrolytic paper, the preparation method comprises the steps of formation, winding compounding, liquid immersion, vacuum heat sealing and cooling solidification, and the prepared liquid capacitor is high in sparking voltage, low in generated leakage current and long in service life.

The application discloses a kind of low ESR wide temperature range aluminum electrolytic capacitor and preparation method thereof, first to anode foil multistage corrosion treatment, then preparation electrolyte, then the positive pole foil strip and negative pole foil strip are riveted on anode foil and cathode foil respectively, then electrolytic paper is intervened between anode foil and cathode foil and is wound into element, then the element obtained by winding is dried, then the element after drying is immersed in electrolyte and is immersed, then the element after immersion is loaded into aluminum shell and is sealed, finally the capacitor after packaging is aged treatment;The electrolyte is composed of the following mass percentage components: solvent 40-60%, solute 30-50%, additive 3-10%;The additive is composed of the following mass percentage components: alkyl phosphate 30-55%, mannitol 20-40%, monobutyl phosphate 15-25%, aminoacetic acid 1-5%.The aluminum electrolytic capacitor provided by the application has low ESR, high flashover voltage and good low-temperature performance, and is suitable for high-end data center power supply and AI server power supply.

The invention relates to the technical field of electrolyte, and discloses a high-voltage aluminum electrolytic capacitor which comprises a shell, an anode foil is fixedly connected to the left side of the upper end of the shell, a cathode foil is fixedly connected to the right side of the upper end of the shell, a contact opening is fixedly connected to the middle of the upper end of the shell, and a battery cell is fixedly connected to the middle of the lower end of the contact opening. A wrapping layer is arranged on the outer side of the battery core, and a film II is arranged in the middle of the outer side of the wrapping layer. When the electrolyte in the high-voltage aluminum electrolytic capacitor is used, personnel need to prevent external halogen from entering the interior, and at the moment, the personnel can add n-hexane and tetrahydrofuran into the interior, so that an internal gasket and an electrical core can be wrapped, the external halogen entering the interior can be reduced, and the service life of the high-voltage aluminum electrolytic capacitor is prolonged. The corrosion of the aluminum electrolytic capacitor can be reduced, and the conductivity of the electrolyte can be improved while the sparking voltage of the electrolyte is improved, so that the service life of the aluminum electrolytic capacitor is prolonged.