Gellan Gum-LiI Gel Polymer Electrolytes

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°C and exhibit ionic conductivity of 3.8 × 10 −4 S/cm at room temperature for the sample doped with 40 wt% of LiI. Add...

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Published in:Molecular Crystals and Liquid Crystals 2012-03, Vol.554 (1), p.232-238
Main Authors: Halim, N. F. A., Majid, S. R., Arof, A. K., Kajzar, F., Pawlicka, A.
Format: Article
Language:English
Subjects:
Conductivity
Crystals
Electric properties
Electrical properties
Electrolytes
Gellan gum
Glycerols
Iodides
ionic conducting membranes
Ionic conductivity
Liquid crystals
Lithium
polymer electrolyte
Polymers
Temperature
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creator Halim, N. F. A.
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description 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°C and exhibit ionic conductivity of 3.8 × 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 × 10 −3 S/cm, which remains stable up to 100°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°C.
doi_str_mv 10.1080/15421406.2012.634344
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source EBSCOhost MLA International Bibliography With Full Text; Taylor and Francis Science and Technology Collection
subjects Conductivity
Crystals
Electric properties
Electrical properties
Electrolytes
Gellan gum
Glycerols
Iodides
ionic conducting membranes
Ionic conductivity
Liquid crystals
Lithium
polymer electrolyte
Polymers
Temperature
title Gellan Gum-LiI Gel Polymer Electrolytes
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