Gellan gum-liI gel polymer electrolytes

Halim, N.F.A. and Majid, Siti Rohana and Arof, Abdul Kariem and Kajzar, F. and Pawlicka, A. (2012) Gellan gum-liI gel polymer electrolytes. Molecular Crystals and Liquid Crystals, 554. pp. 232-238. ISSN 1542-1406

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Official URL: https://doi.org/10.1080/15421406.2012.634344

Abstract

Gellan-based polymer electrolytes (PEs), doped with lithium iodide (LiI), were prepared and their electrical properties were characterized. The samples are thermally stable up to 234 degrees C and exhibit ionic conductivity of 3.8 x 10(-4) S/cm at room temperature for the sample doped with 40 wt% of LiI. Addition of 10 wt% of glycerol promotes an increase of the ionic conductivity to 1.5 x 10(-3) S/cm, which remains stable up to 100 degrees C. The activation energies of 2.4 to 12.4 kJ/mol were derived from the Arrhenius model. The repeated ionic conductivity measurements as a function of temperature show that these membranes can be reversibly used between the room temperature and 100 degrees C.

Item Type: Article
Additional Information: Department of Physics, Faculty of Science Building, University of Malaya, 50603 Kuala Lumpur, MALAYSIA
Uncontrolled Keywords: Gellan gum; Ionic conducting membranes; Polymer electrolyte; Blend; Simulation; Battery
Subjects: Q Science > QC Physics
Divisions: Faculty of Science > Dept of Physics
Depositing User: Miss Malisa Diana
Date Deposited: 17 Jul 2013 01:01
Last Modified: 27 Aug 2019 01:14
URI: http://eprints.um.edu.my/id/eprint/7694

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