Effect of Glycerin on Electrical and Thermal Properties of PVA/Copper Sulphate Gel Polymer Electrolytes

Copper-ion conducting gel polymer electrolyte (GPE) systems based on poly(vinyl alcohol) (PVA) and copper sulphate salt doped with glycerin as plasticizer have been synthesized by using solution casting technique. Differential scanning calorimetry (DSC) is used to examine the thermal effect of a electrolyte. With addition various quantities glycerin, in pure PVA + 20 wt% CuSO4 shows decrease values melting temperature, glass transition temperature percentage crystallinity. From TGA curves, it observed that degradation shifted towards lower when compared pristine weight loss increases increase concentration. DTG analysis, maximum decomposition for 283.4 °C decreased upon increased concentration from 1 3 mL glycerin. For CuSO4, ?? decreases increasing lowest at The ionic conductivity obtained was 9.39 × 10? 4 S/cm above results suggested that, optimum sample suitable separator rechargeable batteries.