Manufacture method of solid electrolyte aluminum electrolytic capacitor

Abstract

The invention discloses a manufacture method of a solid electrolyte aluminum electrolytic capacitor. The manufacture method includes the following steps: (1) enabling electrolytic paper to be arranged between an anode formation aluminum foil and a cathode foil and winding the anode formation aluminum foil, the cathode foil and the electrolytic paper into a core bag; (2) installing a rubber cover for sealing on the core bag and welding an anode guide pin of the core bag on an iron strip; (3) immersing the core bag into formation liquid to conduct formation maintenance processing and then carbonizing the core bag subjected to the formation maintenance processing; (4) immersing the core bag into the formation liquid again to conduct the formation maintenance processing; (5) placing the core bag into deionized water to wash the core bag and then drying the core bag; (6) respectively placing the core bag into a monomer and an oxidant for impregnation and then heating the core bag to conduct polymerization reaction; (7) enabling the core bag to impregnate electrolyte; and (8) installing the core bag into an aluminum casing, sealing an opening and conducting aging processing. The manufactured solid electrolyte aluminum electrolytic capacitor is good in product consistency, small in leakage current, high in product withstand voltage and high in yield.

Description

Technical field [0001] The present invention relates to a method for manufacturing an electrolytic capacitor, in particular to a method for manufacturing a solid electrolyte aluminum electrolytic capacitor. Background technique [0002] In the prior art, solid electrolytic capacitors have outstanding electrical performance compared to ordinary liquid electrolytic capacitors, and have the advantages of low equivalent series resistance (ESR), high ripple current resistance, long service life, and stable performance. With the continuous upgrading of electronic products and the continuous improvement of their functions and performance, the requirements for high-frequency characteristics of capacitors are also getting higher and higher. People reduce the ESR of solid electrolytic capacitors through various ways to meet the high-frequency characteristics of capacitors. . [0003] However, the current common problem in the solid electrolytic capacitor industry is that the leakage current...

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Problems solved by technology

[0003] However, the current common problem in the solid electrolytic capacitor industry is that the leakage current of the product is large and the product withstand voltage is low, so the pass rate of solid electrolytic capacitors is not very high in the production process.

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