As a new approach, biodegradable solid polymer blend polymer electrolytes are prepared using a synthetic polymer Poly [vinyl pyrrolidone] (PVP) and a biopolymer Starch with constant amount of Ammonium ceric nitrate. The Biopolymer starch is used to enhance the biodegradability of the polymer membranes. The polymer electrolytes are prepared by solution casting method using deionized water as solvent. The prepared electrolytes are analyzed with structural, vibrational, electrical and electrochemical behavior by using different characterization techniques. The amorphous nature of the blend polymer electrolytes has been confirmed by X-Ray diffraction (XRD) analysis. PVP/cassava starch/ammonium ceric nitrate polymer electrolyte shows high amorphous nature. In FTIR study, polymers-salt complexation and molecular vibrations are observed in the electrolytes. The ionic conductivity and dielectric measurement of the electrolytes are carried out by impedance spectroscopy. The maximum ionic conductivity of 8.1 × 10−6 S/cm is observed at room temperature for 80% PVP: 20% cassava starch: 2% ammonium ceric nitrate (ACN) system. The dielectric properties of the prepared polymer electrolytes are also analyzed. The electrolyte having higher ionic conductivity is tested with cyclic voltammetry (CV) and linear sweep voltammetry (LSV) studies that reveal the electrochemical properties and range of potential window of the polymer electrolyte.

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Biodegradable polymer blend electrolytes based on Pectin–polyvinyl alcohol (PVA) with a constant amount of sodium nitrate (NaNO3) salt are prepared by using a solution casting technique. The complexation between polymers and salt is confirmed by Fourier transform infrared spectroscopy, and the AC impedance technique is implied to analyze the ionic conductivity of the prepared samples. When synthetic polymer PVA is added with pectin, the ionic conductivity increases. Pectin: PVA:NaNO3[00.100.04] blend polymer electrolyte shows the higher ionic conductivity of 4.3×10−6 (S/cm) at room temperature. Further, the dielectric constant and dielectric loss of the polymer electrolytes are also analyzed.