The present investigation involves the electrical characterization studies on three different systems namely system-I ((PMMA + PVDF)y ? (Mg(CF3SO3)2)1-y, where 1-y = 60, 50, 40, 30 and 20 mol% respectively, System-II ((PMMA + PVDF) y - (Mg(CF3SO3)2)1-y)z-(EC) 1-z, where 1-z = 25, 20, 15, 10 and 5 mol % respectively and System-III (((PMMA + PVDF) y - (Mg(CF3SO3)2)1-y)z - (EC) 1-z)b - (MgO) 1-b ,where1-b = 20, 15, 10 and 5 mol% respectively by solution-casting technique. In system III, the MgO nanofiller of 32 nm size prepared by wet chemical sol-gel method is added to arrive at nanocomposite solid polymer electrolyte system in four different compositions namely 1-b = 20, 15, 10 and 5 mol% respectively. AC complex impedance analysis as a function of frequency was carried out in the frequency range of 20 Hz to 10 MHz from room temperature to 350 K to arrive at best conducting composition.
AC Impedance, Ionic conductivity, Solid polymer Electrolytes