Aziz, S.B. and Kadir, Mohd Fakhrul Zamani and Abidin, Zul Hazrin Zainal (2016) Structural, morphological and electrochemical impedance study of CS: LiTf based solid polymer electrolyte: Reformulated arrhenius equation for ion transport study. International Journal of Electrochemical Science, 11 (11). pp. 9228-9244. ISSN 1452-3981, DOI https://doi.org/10.20964/2016.11.18.
Full text not available from this repository.Abstract
This paper discusses ion conduction mechanism in terms of reformulated Arrhenius equation. Understanding the fundamental concepts of Li ion transport is crucial for Li battery technology. Structural and morphological investigations are significant to understand the structure-properties relationships. The broadening of X-ray peaks of chitosan upon the addition of LiTf salt reveals that the crystalline domains are reduced. The SEM micrographs reveal that the samples have a smooth surface. Electrochemical impedance spectroscopy (EIS) was used to obtain the electrical and dielectric parameters. The dielectric constant and DC ionic conductivity follows the same trend with salt concentration. The behavior of Arrhenius and modified Arrhenius equations versus temperature are clarified. The influence of dielectric constant on DC conductivity experimentally achieved. The reformulated Arrhenius equation exhibited more linearity between the DC conductivity and 1000/(ε'×T). The shortcoming of Arrhenius equation can be understood from the less linear behavior of DC conductivity versus 1000/T. The pre-exponential factor is almost constant at different temperature and independent on dielectric constant. The calculated activation energy from the reformulated Arrhenius equation is greater than that obtained from Arrhenius equation.
| Item Type: | Article |
|---|---|
| Funders: | University of Malaya: Grant No. PS214/2009A, Ministry of Higher Education and Scientific Research - Kurdistan Regional Government, University of Human Development, Kurdistan Regional Government, Qrga Street, Sulaimani, Iraq |
| Uncontrolled Keywords: | Polymer electrolyte; XRD and SEM analysis; Dielectric constant and DC conductivity; Reformulated Arrhenius equation |
| Subjects: | Q Science > Q Science (General) Q Science > QC Physics |
| Divisions: | Faculty of Science |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 04 Dec 2017 03:34 |
| Last Modified: | 18 Aug 2020 07:58 |
| URI: | http://eprints.um.edu.my/id/eprint/18410 |
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