POLYMER SOLID ELECTROLYTE, ELECTROCHEMICAL DEVICE, AND ACTUATOR ELEMENT

摘要

This invention provides a polymer solid electrolyte comprising an ion liquid (A) and a block copolymer (B). The block copolymer (B) comprises, as indispensable components, one or more polymer blocks (P) compatible with the ion liquid (A) and one or more polymer blocks (Q) incompatible with the ion liquid (A). The ion liquid (A) and the polymer block (P) have been compatibilized with each other to constitute one phase (X), and the polymer block (Q) constitutes a phase (Y) incompatible with the phase (X). The phase (X) and the phase (Y) are separated from each other by microphase separation. The polymer solid electrolyte has practical ion conductivity and is excellent in the retention of the ion liquid, as well as in heat resistance and mechanical strength. There are also provided an electrochemical device and an actuator element that can rapidly produce a displacement upon response to the application of voltage and, by virtue of the liquid retention and mechanical strength of the polymer solid electrolyte, can be stably operated for a long period of time. Accordingly, the elctrochemical device and the actuator element are suitable for use, for example, in the field of medical equipment, micromachine, industrial robots, and personal robots.