SECONDARY BATTERY

摘要

PURPOSE:To increase the capacity of a battery by using an electrolyte solution containing a solvent and a 2nd solute having an anion kind of a smaller ion radius than that of the anion kind of a 1st solute. CONSTITUTION:Polyaniline obtained by electrolytic polymerization in a polymerization bath containing a 1st solute is used as a conductive polymer electrode. An electrolyte solution containing a solvent and a 2nd solute having an ion kind of a smaller ion radius than that of the anion kind of a 1st solute is used. The anion kind of B10Cl10<2-> or B12Cl12<2-> for the 1st solute and the anion kind ClO4<-> or BF4<-> for the 2nd solute are used. The content of B10Cl10<2-> or B12Cl12<2-> in the polymerization bath is made 30-50weight%.