Aziz, Shujahadeen B. and Nofal, Muaffaq M. and Kadir, M. F. Z. and Dannoun, Elham M. A. and Brza, Mohamad A. and Hadi, Jihad M. and Abdullah, Ranjdar M. (2021) Bio-based plasticized PVA based polymer blend electrolytes for energy storage EDLC devices: Ion transport parameters and electrochemical properties. Materials, 14 (8). ISSN 1996-1944, DOI https://doi.org/10.3390/ma14081994.
Full text not available from this repository.Abstract
This report shows a simple solution cast methodology to prepare plasticized polyvinyl alcohol (PVA)/methylcellulose (MC)-ammonium iodide (NH4I) electrolyte at room temperature. The maximum conducting membrane has a conductivity of 3.21 x 10(-3) S/cm. It is shown that the number density, mobility and diffusion coefficient of ions are enhanced by increasing the glycerol. A number of electric and electrochemical properties of the electrolyte-impedance, dielectric properties, transference numbers, potential window, energy density, specific capacitance (C-s) and power density-were determined. From the determined electric and electrochemical properties, it is shown that PVA: MC-NH4I proton conducting polymer electrolyte (PE) is adequate for utilization in energy storage device (ESD). The decrease of charge transfer resistance with increasing plasticizer was observed from Bode plot. The analysis of dielectric properties has indicated that the plasticizer is a novel approach to increase the number of charge carriers. The electron and ion transference numbers were found. From the linear sweep voltammetry (LSV) response, the breakdown voltage of the electrolyte is determined. From Galvanostatic charge-discharge (GCD) measurement, the calculated C-s values are found to drop with increasing the number of cycles. The increment of internal resistance is shown by equivalent series resistance (ESR) plot. The energy and power density were studied over 250 cycles that results to the value of 5.38-3.59 Wh/kg and 757.58-347.22 W/kg, respectively.
| Item Type: | Article |
|---|---|
| Funders: | UNSPECIFIED |
| Uncontrolled Keywords: | PVA; Methylcellulose; Glycerol plasticizer; Circuit modeling; Ion transport parameters; Electrochemical properties; EDLC fabrication |
| Subjects: | Q Science > QC Physics Q Science > QD Chemistry |
| Divisions: | Centre for Foundation Studies in Science |
| Depositing User: | Ms Zaharah Ramly |
| Date Deposited: | 01 Mar 2022 07:10 |
| Last Modified: | 01 Mar 2022 07:10 |
| URI: | http://eprints.um.edu.my/id/eprint/28613 |
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