Patent ID: 6136372
Filing Date: 2000-10-24
Classification: H01B,H01G,Y02E

Abstract:
A process for depositing a conductive polymer in a porous pellet comprising:(a) providing a porous pellet made from a material selected from the group consisting of tantalum, aluminum, niobium, zirconium, and hafnium;(b) anodizing the pellet;(c) dipping the pellet into a solution comprising a monomer, an Fe(III) oxidizing agent and a mixed solvent, the mixed solvent comprising a first solvent having a first boiling point, wherein the first solvent does not appreciably complex with Fe(III), and a second solvent having a second boiling point which is lower than the first boiling point, wherein the second solvent forms a weak complex with Fe(III);(d) evaporating the second solvent;(e) reacting the monomer with the oxidizing agent to form a conductive polymer; and(f) washing the pellet.