Method of producing a tantalum solid electrolytic capacitor by using a functional polymer tantalum electrolytic composition

摘要

The tantalum wire is inserted into the tantalum (Ta) powder, press-molded with a press, and then sintered under high temperature (1800 ° C) and high vacuum (10 ^-6 torr) and subjected to electrochemical anodization to form a tantalum oxide (Ta ₂ O ₅ ) dielectric film. Disclosed is a method of manufacturing a functional polymer solid electrolytic tantalum capacitor by impregnating a tantalum capacitor sintered body prepared by forming an impregnated conductive polymer solution with a high electrical conductivity instead of manganese dioxide as a solid electrolyte. According to the present invention, a tantalum oxide (Ta ₂ O ₅ ) electrolytic capacitor device obtained by anodizing a tantalum sintered compact in a polyaniline solution having high electrical conductivity is impregnated with polyaniline, and then dried in a drying furnace maintained at a constant temperature. So that the solvent is completely removed. At this time, the impregnation exhibits excellent impregnation characteristics not only at normal temperature and normal pressure, but also at normal pressure, high temperature, and high pressure. The carbon electrode layer was formed by dipping on the solid electrolyte layer of the device on which the conductive polymer solid electrolyte layer was formed by drying, and then dried, and the silver (Ag) electrode layer was formed on the carbon electrode layer by the same immersion method and then dried. . A functional polymer tantalum solid electrolytic capacitor may be manufactured by extracting the negative electrode terminal to the device on which the electrode layer is applied and then molding the resin.