Please use this identifier to cite or link to this item: http://repo.lib.jfn.ac.lk/ujrr/handle/123456789/2322
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dc.contributor.authorDe Silva, M. M.
dc.contributor.authorVidanapathirana, K. P.
dc.contributor.authorPerera, K. S.
dc.date.accessioned2021-04-11T09:20:19Z
dc.date.accessioned2022-07-07T05:02:42Z-
dc.date.available2021-04-11T09:20:19Z
dc.date.available2022-07-07T05:02:42Z-
dc.date.issued2019
dc.identifier.issn0925-3467
dc.identifier.urihttp://repo.lib.jfn.ac.lk/ujrr/handle/123456789/2322-
dc.description.abstractToday, technology has made our life styles luxurious and as a result, many appliances such as mobile phones, laptops and computers are in full use. They all need un-interrupted power that has created a high demand for energy storage devices. This has given a substantial attention on supercapacitors, which are known to be lying between batteries and conventional capacitors in terms of power and energy. Electrochemical double layer capacitor (EDLC) is one type of supercapacitor that uses carbon based electrodes. In the present study, an EDLC was fabricated with a gel polymer electrolyte (GPE) and commercial graphite electrodes. Its performance was evaluated using cyclic voltammetry techniques and electrochemical impedance spectroscopy. The potential window within which the cycling is done and the scan rate are affecting the single electrode specific capacitance. No redox reactions could be observed in cyclic voltammogrammes (CVs) implying the non-faradaic nature of capacitance. The characteristic rectangular shape of CVs for ideal EDLCs was also present in each case. EDLC has the ability to withstand continuous cycling process. Even though there were some ups and downs of specific capacitance, they were reversible maintaining more or less constant value. This in turn shows the self-healing property of GPEs. The average single electrode specific capacitance was about 1.8 Fg-1. In the Nyquist plot, resistive and capacitive properties were present at high and low frequency regions. The spike corresponding to the capacitive features was tilted due to the problems in electrode surface.en_US
dc.language.isoenen_US
dc.publisherUniversity of Jaffnaen_US
dc.titleElectrochemical Double Layer Capacitor based on Commercial Graphite and Gel Polymer Electrolyteen_US
dc.typeArticleen_US
Appears in Collections:AMCEHA 2019

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