Effect of  Fe2O3 Nano Filler on Structural and Electrical Properties of PVB-NaNO3 Complexed Solid Polymer Electrolytes for Electrochemical Cell Applications

Prasanna, Umadevi; Kambila, Vijaya Kumar; Nadella, Krishna Jyothi

doi:10.22068/ijmse.3650

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‎ 10.22068/ijmse.3650

Effect of Fe2O3 Nano Filler on Structural and Electrical Properties of PVB-NaNO3 Complexed Solid Polymer Electrolytes for Electrochemical Cell Applications

Umadevi Prasanna

, Vijaya Kumar Kambila

, Krishna Jyothi Nadella

Abstract: (1062 Views)

The composite solid polymer electrolyte films were prepared by doping nano-sized Fe₂O₃particles on PVB (Polyvinyl Butyral) complexed with NaNO₃ salt by solution casting technique. FTIR, XRD, and SEM methods characterized these electrolyte films. The Fourier Transform Infrared Spectroscopy and X-ray diffraction methods reveal the structural and complexation changes occurring in the electrolytes. The surface morphology of the electrolyte film was examined using the SEM (Scanning Electron Microscope) technique. The PVB+NaNO₃+Fe₂O₃(70:30:3%) electrolyte shows a moderate ionic conductivity of 2.51×10⁻⁵ S cm⁻¹ at ambient temperature (303 K). AC impedance spectroscopic analysis evaluates the ionic conductivity of the produced polymer electrolyte. Wagner's polarisation technique was applied to study the charge transport characteristics in the electrolyte films. The investigation revealed that ions constituted the majority of the transport carriers. An Open Circuit Voltage (OCV) of 2.0V and a Short Circuit Current (SCC) of 0.8 mA were found in the discharge characteristics data for the cell constructed with the polymer electrolyte sample.

Keywords: Polymer electrolytes, X-ray diffraction, Ionic conductivity, Discharge characteristics, Optical properties