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Title: Fastion transport in P(VDF -HFP)-PMMA-PC-LiClO4-TiO2 composite gel polymer electrolytes
Authors: Saikia, D
Kumar, A
Keywords: P(VDF-HFP);PMMA;ac impedance;Ionic conductivity;Transport number;FTIR;XRD
Issue Date: Dec-2003
Publisher: NISCAIR-CSIR, India
Abstract: Thin films or poly (vinylidene fluoride-co-hexafluoropropylene) P(VDF-HFP) and poly (methylmethacrylate) PMMA polymer blend electrolytes plasticized with propylene carbonate (PC) and LiCIO4 as salt and TiO2 as inorganic filter have been prepared by solution casting technique. Films of thickness in the range of 30µm- 1 mm prepared by varying the plasticizer-filler and salt-filler ratio were characterized by ac impedance measurements in the temperature range 293-373 K. Addition or ceramic filler to the polymer electrolyte was round to result in an enhancement of the ionic conductivity. A maximum electrical conductivity of ~2.81×10-2  S/cm at 293 K and ~4.5×10-2 S/cm at 373 K has been achieved with the dispersion or the TiO2. Transport number measured by Wagner's polarization method, using silver blocking electrodes, was round to be 0.985. FTIR spectral studies confirmed the formation of polymer-salt complex. XRD patterns exhibit the increased amorphicity in the blended composite gel polymer electrolytes.
Page(s): 961-966
ISSN: 0975-1041 (Online); 0019-5596 (Print)
Appears in Collections:IJPAP Vol.41(12) [December 2003]

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