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

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Abstract

Proton-conducting polymer blend electrolytes based on PVA–PVP–NH4NO3 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% NH4NO3 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.

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Acknowledgement

One of the authors (N. Rajeswari) wishes to thank Prof S. R. S. Prabaharan, VIT University, Chennai and Director, Institute of Multidisciplinary Research for Advanced Materials IMRAM, Tohoku University, Japan for providing facilities and permission to carry out work.

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Authors and Affiliations

  1. Department of Physics, PSR Engineering College (Affiliated to Anna University), Sivakasi, 626140, Tamilnadu, India

    N. Rajeswari

  2. Materials Research Centre, Coimbatore, 641045, Tamilnadu, India

    S. Selvasekarapandian

  3. Department of Physics, Alagappa University, Karaikudi, 630 003, Tamilnadu, India

    C. Sanjeeviraja

  4. Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai, 980-8577, Japan

    J. Kawamura

  5. Department of Physics, Kalasalingam University, Krishnankoil, 626 126, Tamilnadu, India

    S. Asath Bahadur

Authors
  1. N. Rajeswari
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  2. S. Selvasekarapandian
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  3. C. Sanjeeviraja
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  4. J. Kawamura
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  5. S. Asath Bahadur
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Corresponding author

Correspondence to S. Selvasekarapandian.

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Rajeswari, N., Selvasekarapandian, S., Sanjeeviraja, C. et al. A study on polymer blend electrolyte based on PVA/PVP with proton salt. Polym. Bull. 71, 1061–1080 (2014). https://doi.org/10.1007/s00289-014-1111-8

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  • DOI: https://doi.org/10.1007/s00289-014-1111-8

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