Structure, thermal and transport properties of PVAc-LiClO4 solid polymer electrolytes

R. Baskaran, S. Selvasekarapandian, N. Kuwata, J. Kawamura, T. Hattori

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The lithium ion conducting solid polymer electrolytes (SPE) based on PVAc-LiClO4 of various compositions were prepared by solution casting technique. Structure and surface morphology characterization were studied by X-ray diffraction (XRD) analysis and scanning electron microscopy (SEM) measurements, respectively. Thermal and conductivity behavior of polymer-salt complexes were studied by employing differential scanning calorimetry (DSC) and ac impedance measurements, respectively. XRD and SEM analyses indicate the amorphous nature of the polymer-salt complexes. DSC measurements show decrease in Tg with the increase in LiClO4 concentrations. The bulk conductivity of the PVAc:LiClO4 polymer electrolytes was found to vary between 7.6×10-7 and 6.2×10-5 S cm-1 at 303 K with the increase in salt concentration. The temperature dependence of the polymer electrolyte complexes appear to obey Arrhenius law.

Original languageEnglish
Pages (from-to)407-412
Number of pages6
JournalJournal of Physics and Chemistry of Solids
Issue number3
Publication statusPublished - 2007 Mar


  • A. Polymers
  • C. Differential scanning calorimetry
  • C. Electron microscopy
  • C. X-ray diffraction
  • D. Electrical properties


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