Synthesis of Aluminate Polymer Complexes as Single-Ionic Solid Electrolytes

Abstract

Main-chain anionic polymers with lithium cations, which have oligo(oxyethylene)aluminate chain backbones attached with two side chains of endo-methoxy[oligo(oxyethylene)], were prepared, and their ionic conductivities are reported. The ac conductivity of aluminate polymer complex was about 10-6−10-7 S cm-11 at room temperature. As the constant current was observed for [Li/aluminate polymer complex/Li] cells under dc electric field, the single-ionic conduction was confirmed.