Proton Conducting Polymer Electrolytes for Electrochemical Capacitors

摘要

Solid polymer electrolytes containing phosphotungstic acid (PWA) and/or silicotungstic acid (SiWA) blended in polyvinyl alcohol (PVA) were investigated. The polymer electrolyte with a mixed PWA and SiWA had a synergistic effect on its proton conductivity over that of pure PVA-PWA or PVA-SiWA electrolytes. When adding a small amount of polyacrylic acid (PAA), a further increase in proton conductivity was obtained. Electrochemical and structural analyses were conducted on these electrolytes as well.