Secondary battery and capacitor using indole compound

摘要: PROBLEM TO BE SOLVED: To provide a secondary battery and capacitor superior in high rate characteristic cycle while sufficient electromotive force capacity are provided. SOLUTION: As an electrode active material, this has trimer structure having unit of one kind or two kinds more indole compounds selected from derivatives, is compound condensed polycyclic six-membered ring constituted atoms the position 2 3 three structural units, bonding any first to be bonded between other second bond used combination, proton as charge carrier compound. COPYRIGHT: (C)2003,JPO