Studies on Sodium Ion Conducting Gel Polymer Electrolytes

Abstract:

Sodium ion conducting gel polymer electrolyte (GPE) films consisting of polyvinylidenefluoride-co-hexafluoropropylene (PVdF-HFP) as a polymer host were prepared using the solution casting technique. Sodium trifluoromethane-sulfonate (NaCF₃SO₃) was used as an ionic salt and the mixture of ethylene carbonate (EC) and propylene carbonate (PC) as the solvent plasticizer. The GPE films were found to be stable up to temperature of 145 °C as shown by TGA analysis. The AC impedance study show that the optimum conductivity of 2.50 x 10^-3 S cm^-1 at room temperature is achieved for the film containing 20 wt.% of NaCF₃SO₃ salt. The temperature dependence of conductivity obeys VTF relation in the temperature range of 303 K to 373 K.

• Periodical: Key Engineering Materials (Volumes 594-595)
• Pages: 786-792
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.594-595.786
• Online since: December 2013
• Authors: Khairul Bahiyah Md Isa, Lisani Othman, Nurul Husna Zainol, Siti Mariam Samin, Woon Gie Chong, Zurina Osman, Abdul Kariem Mohd Arof
• Keywords: Conductivity, Gel Polymer Electrolytes, PVDF-HFP, Sodium Triflate, TGA

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