Evaluation of Binary System (NaI-Na₃PO₄) Solid Electrolyte and Performance of Sodium Battery

Abstract:

A Na–ion conducting solid electrolyte system was prepared by using ball milling and sintering method. The electrical conductivity study was carried out as a function of NaI concentration by Electrical Impedance Spectroscopy technique and the maximum conductivity of (1.02±0.19)×10^-4 S cm⁻¹ at room temperature was obtained for the composition 0.50 NaI:0.50 Na₃PO₄. Further characterization was performed by using and Infrared (FTIR) technique. From FTIR spectra, the variation in the peak intensity and shifting is observed due to the presence of P–O and PO₄³⁻ bands that had been shifted indicating changes in polyhedral structure which in turn led to the formation of conducting channel by corner sharing or through edges. The ionic transference number was found in the value of 0.92 which suggests that ions are the charge carriers. The optimum composition with the highest conductivity of the sample considered as a good candidate to be used as solid electrolyte in solid state sodium battery. The sodium battery with configuration: Na/NaI–Na₃PO₄/V₂O₄ was tested by the discharged characteristic at a current of 1.0 μA. The solid state sodium batteries exhibited a discharge capacity of 144mAh/g.

• Periodical: Applied Mechanics and Materials (Volume 703)
• Pages: 33-40
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.703.33
• Online since: December 2014
• Authors: N. Hassan, A. Sanusi, Azizah Hanom Ahmad*
• Keywords: Impedance Spectroscopy, Ionic Conductivity, Na₃PO₄, NaI, Sodium Solid Electrolyte

References

[1] M. Kobayashi: Solid State Ionics Vol. 174 (2004), p.57.

[2] M. Balkanski, R. F. Wallis, J. Deppe and M. Massot, in: Solid State Materials (ed) Radakrishna and Daud (Narosa Publishing House, New Delhi, 53-66 (1991).

[3] K. Takada, N. Aotani, K. Iwamoto and S. Kondo: Solid State Ionics Vol. 86-88 (1996), p.877.

[4] A. Hayashi, H. Yamashita, M. Tatsumisago, T. Minami: Solid State Ionics Vol. 148 (2002), p.381.

[5] J. Kuwano, A. R. West: Mater. Res. Bull. Vol. 15 (1980), p.1661.

[6] M. Tatsumigo, K. Hirai, T. Hirata, M. Takahashi, T. Minami: Solid State Ionics Vol. 86-88 (1996), p.487.

[7] R. H. Y. Subban and A. K. Arof: Phys. Scr. Vol. 53 (1996), p.382.

[8] N. H. Kaus and A. H Ahmad: Ionics Vol. 15 (2009), p.197.

[9] A. H. Ahmad and A. K. Arof: Ionics Vol. 8 (2002), p.433.

[10] A. H. Ahmad and A. K. Arof: Ionics Vol. 10 (2004), p.200.

[11] A.H. Ahmad, N. Hassan, M.A. Abrani: Ionics Vol. 20 (2014), p.389.

[12] J. R. Akridge and H. Vourlis: Solid State Ionics Vol. 18–19 (1986), p.1082.

DOI: 10.1016/0167-2738(86)90313-9

[13] S. Chandra, in: Superionics Solids, Principle and applications, North –Holland (1981).

[14] M. R. Johan, O. H. Shy, S. Ibrahim and S. M. M. Yassin, T. Y. Hui: Solid State Ionics Vol. 196 (2011) p.41.

[15] A. H. Ahmad and F. A. Ghani: AIP Conf Proc Vol. 1136 (2009), p.1.

[16] H. X. Wang, Z. X. Wang, H. Li, Q. B. Meng and L. Q. Chen: Electrochimica Acta Vol. 52 (2007) p. (2039).

[17] R.A. Nuquis and R. O. Kagel: Infrared Spectra of Inorganic Compound (Academic, New York 1971).

[18] T. Suzuki, K. Yoshida, K. Uematsu, T. Kodama and K. Toda: Solid State Ionics Vol. 113–115 (1998), p.89.

[19] P. E. Tomaszewski, M. Mączka, A. Majchrowski, A . Waśkowska, J. Hanuza: Solid State Sci Vol. 7 (2005), p.1201.

DOI: 10.1016/j.solidstatesciences.2005.06.002