Preparation and characterization of plasticized high molecular weight PVC-based polymer electrolytes

Poly(vinyl chloride) (PVC)-based polymer electrolytes films consisting of lithium trifluromethanesulfonate (LiCF(3)SO(3))-ethylene carbonate (EC) were prepared by the solution-casting method. Ionic conductivities of the electrolytes have been determined by an impedance studies in the temperature range of 298373 K. Complexation of the prepared electrolytes is studied by X-ray diffraction (XRD) analysis. Thermogravimetric analysis (TGA) was used to confirm the thermal stability of the polymer electrolytes. The conductivity-temperature plots were found to follow an Arrhenius nature. All these films are found to be thermally stable until 132-167 degrees C.