Fabrication and characterization of supercapacitor with activated carbon electrode and NaOH electrolyte

Ab Rahim, Abdul Hakim and Ramli, Nabilah and Nordin, Anis Nurashikin (2018) Fabrication and characterization of supercapacitor with activated carbon electrode and NaOH electrolyte. In: 7th International Conference on Computer and Communication Engineering, ICCCE 2018, 19th-20th September 2018, Gombak, Kuala Lumpur.

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Abstract

A simple RC equivalent circuit model often used to represents a supercapacitor. The model is far from accurately model the behavior of the device. A 2cm by 2 cm supercapacitor prototype based on Activated carbon as the active electrode material and NaOH as the electrolyte was fabricated. This prototype was characterized using Cyclic Voltammetry and Galvanostatic Charge Discharge to get the supercapacitor working potential window, capacitance and internal resistance. The device works up to 0.7V with capacitance of up to 1.6F and internal resistance as low as 190 Ohm was found for the prototype. Several equivalent circuit model of a supercapacitor was simulated to produce similar response of the prototype. Multiple Branch Parallel RC circuit response profile fit the experimental profile the best.

Item Type:	Conference or Workshop Item (Plenary Papers)
Additional Information:	5078/70788
Uncontrolled Keywords:	supercapacitor , EDLC , characterization , cyclic voltammetry , galvanostatic charge discharge , equivalent circuit modelling
Subjects:	T Technology > TJ Mechanical engineering and machinery
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering Kulliyyah of Engineering > Department of Mechanical Engineering
Depositing User:	Dr. Anis Nurashikin Nordin
Date Deposited:	18 Feb 2019 15:51
Last Modified:	03 Jul 2019 15:17
URI:	http://irep.iium.edu.my/id/eprint/70788

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