Ionic Conductivity and Dielectric Properties of Plasticized Polyacrylonitrile Based Solid Polymer Electrolyte Films

Abstract:

The conducting polymer electrolyte films composed of polyacrylonitrile (PAN) as the host polymer, LiCF₃SO₃ and NaCF₃SO₃ as inorganic salts and ethylene carbonate (EC) as plasticizer were prepared by the solution cast technique. The conductivities of the films were characterized by impedance spectroscopy. On addition of more than 14 wt% of salt, the NaCF₃SO₃-containing PAN films exhibited higher ionic conductivity than the LiCF₃SO₃-containing PAN films. The values of the dielectric constant, ε_r and dielectric loss, ε_i increase as frequency decreases at room temperature. The temperature dependence of the conductivity obeys Arrhenius relation in the temperature range of 303 K to 353 K.

• Periodical: Advanced Materials Research (Volume 626)
• Pages: 211-214
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.626.211
• Online since: December 2012
• Authors: W.G. Chong, Zurina Osman, Lisani Othman, Khairul Bahiyah Md. Isa
• Keywords: Conductivity, Dielectric, LiCF₃SO₃, NaCF₃SO₃, pan, Plasticizer, Polymer Electrolyte

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