Control of ionic conductivity in solid polymer electrolyte by photoirradiation

A polymer containing anthryl groups is prepared as the matrix for a Solid Polymer Electrolyte with controllable ionic conductivity by photoirradiation. The complex composed of the polymer (anthryl group content at 14 mol%) and LiClO 4(3 mol%) showed the high ionic conductivity of 6.8 × 10 −6 S cm −1 at 25°C in the dark. The conductivity change caused by photodimerization of anthryl groups is revealed to be considerably affected by the anthryl group content and T g of the matrix.