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Comparative Electrical and Electrochemical Performance of Proton Conducting Polymer Nanocomposites Based on TiO2 and Al2O3 Fillers

C. Ambika and G. Hirankumar

Two different systems of nanocomposite blend solid proton conducting polymer electrolytes based on PMMA/PVP with MSA as proton provider dispersed with nano fillers such as TiO2 and Al2O3 are prepared by solution casting technique. The maximum conductivity value of 2.82 × 10-5 S/cm is observed for the 1 mol% of TiO2 dispersed nanocomposite blend solid polymer electrolytes. The maximum conducting sample in each set of TiO2 and Al2O3 dispersed nanocomposite solid polymer electrolyte is used for the construction of proton battery as electrolyte. Electrochemical impedance value is calculated for the fresh cells. The discharge characteristics are monitored for 0.01 mA of current drain. The energy density of the proton battery constructed with TiO2 and Al2O3 dispersed nanocomposite polymer electrolytes are 3.16 and 2.82 Wh/Kg respectively. The cell performance of TiO2 based nanocomposite polymer electrolyte found better than the Al2O3 based nanocomposite polymer electrolyte.