Characterization of plasticizeed poly (methyl mechacrylate) polymer electrolyte systems

Othman, L. and Osman, Zurina (2006) Characterization of plasticizeed poly (methyl mechacrylate) polymer electrolyte systems. In: 7th National Conference on Solid State lonics, 6-8 June 2006, Coimbatore, India. (Unpublished)

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Abstract

In the present study, six systems of films have been prepared by the solution casting technique; they are the pure PMMA system, the (PMMA-EC) system, the (PMMA-LiBF4) system, the (PMMA-LiCFJSOJ) system, the (PMMA-EC-LiBF4) system and the (PMMA-EC-LiCFJSOJ) system. The conductivities of the films from each system are characterized by impedance spectroscopy. The room temperature electrical conductivity for the highest conducting film in the (PMMA-EC-LiBF4) and (PMMA-EC-LiCFJSOJ) systems are 4.07 x 10-7 Scm-I and 3.40 x 10-5 Scm-I respectively. It can be deduced that plasticizer, EC has dissociated more LiCFJSOJ salt compared to LiBF4 salt, thereby increasing the number of charged carriers in the (PMMA-EC-LiCFJSOJ) sample. The conductivity-temperature studies are carried out in the range of temperature from 303 K to 373 K. The results show that the conductivity is increased when the temperature is increased. Scanning Electron Microscopy analysis show the surface of (PMMA-EC-LiCFJSOJ) sample is smooth and homogeneous, hence lithium ions can traverse through the (PMMA-EC-LiCFJSOJ) sample easier compared to (PMMA-ECLiBF4) sample. X-Ray Diffraction studies show that the conductivity is increased when the crystallinity of the samples is reduced.

Item Type: Conference or Workshop Item (Paper)
Funders: UNSPECIFIED
Additional Information: Conference paper
Uncontrolled Keywords: Polymer electrolytes; Conductivity; Plasticizer; Lithium salts; SEM
Subjects: Q Science > Q Science (General)
Q Science > QC Physics
Divisions: Faculty of Science > Department of Physics
Depositing User: Mr. Mohd Safri
Date Deposited: 17 Jul 2020 01:34
Last Modified: 17 Jul 2020 01:34
URI: http://eprints.um.edu.my/id/eprint/25087

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