Conductivity Studies on Filler Free and Filler Doped PVA-PEO Based Blend Polymer Electrolytes

The present study deals with the investigation of conduction behavior of filler free and filler based blend electrolyte system. The polymer blend films consisting of PVA and PEO doped with silver salt and PEG plasticizer, are prepared using solution cast technique. The filler free system is prepared for varying ratios of host polymers (PVA: PEO); whereas the filler based system is prepared with various Al2O3 concentrations in the blend films. The conductivity studies of prepared samples are carried out using impedance spectroscopic analysis. The conductivity for the filler free blend system is found to increase with increasing amount of PEO in all the blend specimens. On the other hand, the filler based system shows the conductivity enhancement upto 6wt% which mitigates with further addition of filler into the electrolytes. The DSC scans are found to support the conductivity results.