The present work reports development of bismuth iron oxide (BFO)-doped PVA:(NH4 CH3COO) nanocomposite gel polymer electrolyte (NCGPE) films. XRD profiles revealed enhancement in the amorphous behavior of composite gel electrolyte… Click to show full abstract
The present work reports development of bismuth iron oxide (BFO)-doped PVA:(NH4 CH3COO) nanocomposite gel polymer electrolyte (NCGPE) films. XRD profiles revealed enhancement in the amorphous behavior of composite gel electrolyte upon incorporation of BFO as filler particles. I-t measurements exhibit ionic charge transport. The ionic conductivity of the electrolytes has been evaluated from impedance spectroscopy, and the highest value at room temperature have been found to be 1.05 × 10−3 S cm−1 for the composite gel samples containing 0.5 wt% filler concentration. The temperature dependence of ionic conductivity exhibits a combination of Arrhenius and Vogel-Tamman-Fulcher (VTF) behavior. Charge carrier density has been also evaluated from the dielectric response of the electrolyte films. Cyclic voltammetry of the films reveals a wide electrochemical window (− 2.54 to +2.89 V) with good cyclic response to suggest its applicability for battery applications.
               
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