| 摘要 |
PURPOSE: A method is provided to obtain significantly improved characteristics of impedance and equivalent serial resistance in a high frequency by using a conductive polymer as an electrolyte for the wound element disposed in an aluminum electrolytic capacitor. CONSTITUTION: A method comprises a step of inserting a manila sheet serving as an insulating sheet(30) between an anode electrode sheet(10) and a cathode electrode sheet(20); a step of winding the anode electrode sheet, the cathode electrode sheet, and the insulating sheet into a wound element; a step of infiltrating 3-ethylenedioxythiophene and 4-ethylenedioxythiophene to the wound element; and a step of dipping the wound element into the mixture of oxidizing agent and solvent, and drying the resultant structure at a high temperature, thereby forming a conductive polymer layer on the wound element through the polymerization occurring in the etching pit of a capacitor. The wound element is dipped into the monomer and oxidizing agent and maintained at the vacuum level of 100 to 650mmHg for a predetermined time so as to achieve improved immersing rate of the element in the monomer and oxidizing agent. |
