Conductivity and structural studies of plasticized polyacrylonitrile (PAN) - lithium triflate polymer electrolyte films

Ahmad, A. and Isa, K.B.M. and Osman, Z. (2011) Conductivity and structural studies of plasticized polyacrylonitrile (PAN) - lithium triflate polymer electrolyte films. Sains Malaysiana, 40 (7). pp. 691-694. ISSN 0126-6039

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Abstract

The effect of different plasticizers on the properties of PAN-LiCF(3)SO(3) polymer electrolytes has been studied. Propylene carbonate (Pc) and ethylene carbonate (EC) having different values of donor numbers, dielectric constant and viscosity have been used as plasticizers. The highest room temperature conductivity for the film in the PAN-LiCF(3)SO(3) system was 3.04 x 10(-4) s cm(-1). The highest room temperature conductivity for the films in the PAN-EC-LiCF(3)SO(3) system and the PAN-PC-LiCF(3)SO(3) system was 1.32 x 10(-3) and 8.64 x 10(-4) S cm(-1). The addition of plasticizers has been found to enhance the conductivity of polymer electrolytes by increasing the amorphous content as well as by dissociating the ion aggregates present in polymer electrolyte. Conductivity temperature-dependence studies of these plasticized PAN-salt systems were carried out in the temperature range of 303 to 373 K. The conductivity versus temperature plots obeyed an Arrhenius type variation. The structural and complex formations were studied by X-ray diffraction (XRD) and Fourier Transform Infrared (FTIR) spectroscopy.

Item Type: Article
Uncontrolled Keywords: Conductivity, lithium triflate, plasticizer, polyacrylonitrile, polymer, electrolytes, ionic-conductivity, impedance, transport,
Subjects: Q Science > QC Physics
Divisions: Faculty of Science > Dept of Physics
Depositing User: miss munirah saadom
Date Deposited: 10 Oct 2013 01:30
Last Modified: 19 Mar 2019 09:06
URI: http://eprints.um.edu.my/id/eprint/8459

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