Patent ID: 8535394

Claim:
A method for producing a solid electrolyte comprising the steps of: applying a solution containing a five-membered heterocyclic compound as a polymerizable monomer onto a surface of a substrate, and polymerizing the applied polymerizable monomer to give a solid electrolyte comprised of an electrically conductive polymer, said method being characterized in that the polymerizable monomer-containing solution contains the polymerizable monomer and at least one polymerizable component selected from the group consisting of a dimer of the polymerizable monomer and a trimer of the polymerizable monomer, at a proportion satisfying the following equation: A /( B+C )=100-1,000,000 where A: concentration of the polymerizable monomer, B: concentration of the dimer as expressed in terms of the concentration of the polymerizable monomer, and C: concentration of the trimer as expressed in terms of the concentration of the polymerizable monomer.