Comparison Studies of Blend and Unblend GPE Systems: Ionic Conductivity, Structural and Morphological Properties

Abstract

Studies on comparison of blend and unblend PMMA-based gel polymer electrolytes containing LiClO4salt with EC and PC as plasticizing solvent is reported. The GPE samples are prepared by varying the salt concentrations from 5 wt.% to 30 wt.%. At room temperature, PVdF-HFP/PMMA blend GPE exhibits the highest conductivity of 4.71 x 10-3S cm-1containing 25 wt.% of LiClO4salt while the highest conductivity for unblend GPE is 3.34 x10-3S cm-1containing 20 wt.% of LiClO4salt. The amorphous nature and morphological properties between LiClO4salt, EC and PC in the blend and unblend GPE systems have been validated using XRD and FESEM analysis.