Effect of Fe۲O۳ Nano Filler on Structural and Electrical Properties of PVB-NaNO۳ Complexed Solid Polymer Electrolytes for Electrochemical Cell Applications

The composite solid polymer electrolyte films were prepared by doping nano-sized Fe۲O۳ particles on PVB (Polyvinyl Butyral) complexed with NaNO۳ 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+NaNO۳+Fe۲O۳(۷۰:۳۰:۳%) electrolyte shows a moderate ionic conductivity of ۲.۵۱×۱۰−۵ S cm−۱ at ambient temperature (۳۰۳ 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 ۲.۰V and a Short Circuit Current (SCC) of ۰.۸ mA were found in the discharge characteristics data for the cell constructed with the polymer electrolyte sample.

کلیدواژه ها:

Polymer electrolytes ، X-ray diffraction ، Ionic conductivity ، Discharge characteristics ، Optical properties