AC impedance, FTIR and XRD investigations of poly acrylonitrile complexed with LiCF3SO3

Solid polymer electrolytes of high ionic conductivity are prepared using poly acrylonitrile (PAN), propylene carbonate (PC), ethylene carbonate (EC) and LiCF₃SO₃. The polymer films are characterised by X-ray diffraction, FTIR and a.c. impedance spectroscopic techniques. The conductivity studies of PAN-LiCF₃SO₃-PC-EC polymer electrolyte systems are carried out in the temperature range 301–373 K. The temperature dependence of the conductivity of the polymer films obeys the VTF relation. The conductivity values are presented and the results are discussed.