Lau, Tristan Justin (2023) Solid Polymer Electrolytes Based on Poly(Vinyl) Alcohol for Electrical Double Layer Capacitor. Final Year Project (Bachelor), Tunku Abdul Rahman University of Management and Technology.
Full text not available from this repository.Abstract
The work undertaken in this research was to determine the viability of a solid polymer electrolyte (SPE) that consists of poly(vinyl) alcohol (PVA), sodium chloride (NaCl) and ethylene carbonate (EC). The SPE was fabricated via solution casting method and its ionic conductivity at elevated temperatures was determined by electrochemical impedance spectroscopy (EIS). Furthermore, the temperature dependence of the SPE was studied and their activation energy was determined by an Arrhenius plot. It was determined that the ratio of PVA to NaCl that gave the best ionic conductivity is 60:40, peaking at 5.34 x 10-8 S cm-1 at 60°C. The SPE was further improved by the addition of 20% ethylene carbonate (EC) as a plasticizer, achieving a peak ionic conductivity of 4.07 x 10-7 S cm-1 at 60°C. The plasticized SPE was used in the fabrication of an EDLC, where it went on to be characterised via Galvanostatic charge-discharge (GCD) and cyclic voltammetry (CV) and it was determined it had an average specific capacitance of (19.66 ± 1.88) F/g and a Columbic efficiency of 100% after 500 cycles.
| Item Type: | Final Year Project |
|---|---|
| Subjects: | Science > Physics |
| Faculties: | Faculty of Applied Sciences > Bachelor of Science (Honours) in Applied Physics (Instrumentation) |
| Depositing User: | Library Staff |
| Date Deposited: | 16 Aug 2023 01:18 |
| Last Modified: | 16 Aug 2023 01:18 |
| URI: | https://eprints.tarc.edu.my/id/eprint/26021 |
