A study on polymer blend electrolyte based on PVA/PVP with proton salt

N. Rajeswari, S. Selvasekarapandian, C. Sanjeeviraja, J. Kawamura, S. Asath Bahadur

    Research output: Contribution to journalArticlepeer-review

    50 Citations (Scopus)

    Abstract

    Proton-conducting polymer blend electrolytes based on PVA-PVP-NH 4NO3 were prepared for different compositions by solution cast technique. The prepared films are investigated by different techniques. The XRD study reveals the amorphous nature of the polymer electrolyte. The FTIR and laser Raman studies confirm the complex formation between the polymer and salt. DSC measurements show decrease in T g with increasing salt concentration. The ionic conductivity of the prepared polymer electrolyte was found by ac impedance spectroscopy analysis. The maximum ionic conductivity was found to be 1.41 × 10-3 S cm-1 at ambient temperature for the composition of 50PVA:50PVP:30 wt% NH4NO 3 with low-activation energy 0.29 eV. The conductivity temperature plots are found to follow an Arrhenius nature. The dielectric behavior was analyzed using dielectric permittivity (ε) and the relaxation frequency (τ) was calculated from the loss tangent spectra (tan δ). Using this maximum ionic conducting polymer blend electrolyte, the primary proton battery with configuration Zn + ZnSO4·7H2O/50PVA:50PVP:30 wt% NH4NO3/PbO2 + V2O5 was fabricated and their discharge characteristics studied.

    Original languageEnglish
    Pages (from-to)1061-1080
    Number of pages20
    JournalPolymer Bulletin
    Volume71
    Issue number5
    DOIs
    Publication statusPublished - 2014 May

    Keywords

    • DSC
    • Electrical properties
    • FTIR
    • Laser Raman
    • PVA
    • PVP
    • Polymer blend
    • Proton battery
    • X-ray diffraction

    ASJC Scopus subject areas

    • Chemistry(all)
    • Condensed Matter Physics
    • Polymers and Plastics
    • Materials Chemistry

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