The polymer electrolyte composite, for driving an electrolytic capacitor,
according to the present invention is a composite body including an
electrolyte and an acrylic polymer containing a copolymer of acrylic
derivative. The electrolyte includes a polar solvent and a solute
including at least one of inorganic acids, organic acids and salts of such
acids. The copolymer of acrylic derivative is a polymer of: a first
monomer of at least one of a group of monofunctional monomers of acrylic
derivatives each having at least one hydroxyl group at a terminal thereof
and a polymerizable unsaturated double bond; and a second monomer of at
least one of a group of multifunctional monomers of acrylic derivatives
each having plural polymerizable unsaturated double bonds. The polymer
electrolyte composite has a high ionic conductivity at room temperature
together with a high heat resistance, and does not react with electrode
foils such as aluminum, and moreover is superior in the easiness of
manufacturing and long life. The present invention also provides an
electrolytic capacitor using the polymer electrolyte composite.