Characterisation of a Zn Triflate-based Polymer Electrolyte

Ionic conductivity measurements, X-ray diffraction analysis and thermal studies have been carried out on polymer electrolyte films prepared by the addition of zinc trifluoromethanesulphonate (triflate) to poly(ethylene oxide), PEO. In general this electrolyte system was found to behave in a manner similar to other divalent salt-based electrolytes with an increase in crystalline morphology as the concentration of the salt component in the electrolyte was decreased. The conductivity isotherms calculated for this system show an almost constant level of ionic conductivity over the entire range of composition studied.