Capacitance Optimization of Planar Carbon-based Supercapacitor

The Chiang Mai Journal of Science is an international English language peer-reviewed journal which is published in open access electronic format 6 times a year in January, March, May, July, September and November by the Faculty of Science, Chiang Mai University. Manuscripts in most areas of science...

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Main Authors: Ukrit Jitropas, Chumphol Yunphuttha, Sumeth Siriroj, Worawat Meevasana
Language:English
Published: Faculty of Science, Chiang Mai University 2020
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Online Access:https://epg.science.cmu.ac.th/ejournal/dl.php?journal_id=11089
http://cmuir.cmu.ac.th/jspui/handle/6653943832/69869
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Institution: Chiang Mai University
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spelling th-cmuir.6653943832-698692020-10-08T08:36:16Z Capacitance Optimization of Planar Carbon-based Supercapacitor Ukrit Jitropas Chumphol Yunphuttha Sumeth Siriroj Worawat Meevasana electrochemical double-layer capacitor supercapacitor energy storage optimization The Chiang Mai Journal of Science is an international English language peer-reviewed journal which is published in open access electronic format 6 times a year in January, March, May, July, September and November by the Faculty of Science, Chiang Mai University. Manuscripts in most areas of science are welcomed except in areas such as agriculture, engineering and medical science which are outside the scope of the Journal. Currently, we focus on manuscripts in biology, chemistry, physics, materials science and environmental science. Papers in mathematics statistics and computer science are also included but should be of an applied nature rather than purely theoretical. Manuscripts describing experiments on humans or animals are required to provide proof that all experiments have been carried out according to the ethical regulations of the respective institutional and/or governmental authorities and this should be clearly stated in the manuscript itself. The Editor reserves the right to reject manuscripts that fail to do so. By offering high power density and a long cycle life, electrochemical double-layer capacitor (EDLC) or ‘supercapacitor’ becomes a great candidate for energy storage device. Supercapacitors store charge through the electric field at the interface between porous electrode and electrolyte. Activated carbon and other carbon-based materials are typically used as electrode due to its high surface area. On the other hand, dimension of the electrode is also a crucial parameter regardless of material characteristic. Here, six electrode architectures with different array ratio (active area: gap space) were studied. The focus is to design electrode arrangement of planar supercapacitor to enhance its performance beyond a conventional sandwich structure. All cells were fabricated with the same procedures where each side of a copper foil was coated with carbon-based material and a separator soaked with 3M aqueous sodium nitrate was used as electrolyte. In case of low charging current of 5mA, all planar designs provide a higher specific capacitance than the conventional sandwich supercapacitor. Maximum yielded is 23.3 F/g (array ratio of 4:1) which is around 30% enhancement from that of conventional design (17.9 F/g) at 0.8V. Upon increasing the charging current, the specific capacitance of the cells with large gap space decreases dramatically while the cells with narrow gap space still provide a good performance relative to the conventional structure. This behavior indicates how electrode arrangement plays an important role on ions movement. Optimization of electrode pattern will give an opportunity for enhancing the capacitance of planar supercapacitor for real application of energy storage device. 2020-10-08T08:36:16Z 2020-10-08T08:36:16Z 2020 Chiang Mai Journal of Science 47,4 (Special Issue II : July 2020), p.607-613 2465-3845 https://epg.science.cmu.ac.th/ejournal/dl.php?journal_id=11089 http://cmuir.cmu.ac.th/jspui/handle/6653943832/69869 Eng Faculty of Science, Chiang Mai University
institution Chiang Mai University
building Chiang Mai University Library
continent Asia
country Thailand
Thailand
content_provider Chiang Mai University Library
collection CMU Intellectual Repository
language English
topic electrochemical double-layer capacitor
supercapacitor
energy storage
optimization
spellingShingle electrochemical double-layer capacitor
supercapacitor
energy storage
optimization
Ukrit Jitropas
Chumphol Yunphuttha
Sumeth Siriroj
Worawat Meevasana
Capacitance Optimization of Planar Carbon-based Supercapacitor
description The Chiang Mai Journal of Science is an international English language peer-reviewed journal which is published in open access electronic format 6 times a year in January, March, May, July, September and November by the Faculty of Science, Chiang Mai University. Manuscripts in most areas of science are welcomed except in areas such as agriculture, engineering and medical science which are outside the scope of the Journal. Currently, we focus on manuscripts in biology, chemistry, physics, materials science and environmental science. Papers in mathematics statistics and computer science are also included but should be of an applied nature rather than purely theoretical. Manuscripts describing experiments on humans or animals are required to provide proof that all experiments have been carried out according to the ethical regulations of the respective institutional and/or governmental authorities and this should be clearly stated in the manuscript itself. The Editor reserves the right to reject manuscripts that fail to do so.
author Ukrit Jitropas
Chumphol Yunphuttha
Sumeth Siriroj
Worawat Meevasana
author_facet Ukrit Jitropas
Chumphol Yunphuttha
Sumeth Siriroj
Worawat Meevasana
author_sort Ukrit Jitropas
title Capacitance Optimization of Planar Carbon-based Supercapacitor
title_short Capacitance Optimization of Planar Carbon-based Supercapacitor
title_full Capacitance Optimization of Planar Carbon-based Supercapacitor
title_fullStr Capacitance Optimization of Planar Carbon-based Supercapacitor
title_full_unstemmed Capacitance Optimization of Planar Carbon-based Supercapacitor
title_sort capacitance optimization of planar carbon-based supercapacitor
publisher Faculty of Science, Chiang Mai University
publishDate 2020
url https://epg.science.cmu.ac.th/ejournal/dl.php?journal_id=11089
http://cmuir.cmu.ac.th/jspui/handle/6653943832/69869
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