Ion Conductive Polymers

Abstract

This review describes the current status and future challenges of ion-conductive polymers. Ion-conductive materials are essential in various electronic devices such as lithium-ion batteries, fuel cells, and electrochromic devices etc. First, various applications using ion conductive materials and their required properties are introduced. Next, the characteristics of various ion conductive materials, including not only organic but also inorganic materials, and their highest ionic conductivities are outlined. Then, the ion conductive mechanism of the polymer electrolytes are explained. Through the introduction of the representative polymer-salt complexes and single ion conductors (polyionic liquids), one can understand the factors for controlling the ionic conductivity (Glass transition temperature, Effects of plasticizers and inorganic fillers).