Abstract

Solid Polymer Electrolytes: Temperature Dependent Ionic Conductivity and Solid State Battery Fabrication

Kiran Thakur1, Angesh Chandra2, Archana Chandra2 and S. S. Thakur3

1Department of Chemistry, Govt. Pataleswar College Masturi, Bilaspur, Chhattisgarh, INDIA. 2Shri Shankaracharya Institute of Professional Management & Technology, Raipur 492 015, Chhattisgarh, INDIA. 3Department of Chemistry, Guru Ghasidas University, Bilaspur, Chhattisgarh, INDIA.

ABSTRACT

Temperature dependent ionic conductivity studies of a newly synthesized silver ion conducting solid polymer electrolyte (SPE): [70PEO:30AgCl] have been reported. The activation energy (Ea) of SPE have also been calculated with the help of Arrhenius equation below the transition temperature. Solid state battery fabrication and cell potential discharge characteristic studies on thin film solid state battery are reported. Ag+ ion conducting SPE: [70PEO: 30AgCl (wt.%) as electrolyte was sandwiched between Ag-metal foil as anode and hot-pressed film of (C+I2+Electrolyte) as cathode. The cell potential discharge profiles were drawn under different load conditions at room temperature. An open circuit voltage (OCV) ~ 0.62 V, obtained in these batteries, is fairly low as compared to the theoretical OCV (~0.687V). Temperature dependent ionic transference number (tion) was determined with the help of dc polarization technique.

Keywords :Solid polymer electrolytes, ionic conductivity, ionic transference number, polymer battery.