Exploring non-linearities of carbon-based microsupercapacitors from an equivalent circuit perspective
Journal article
Authors/Editors
Strategic Research Themes
No matching items found.
Publication Details
Author list: Boonpakdee D., Guajardo Y้venes C.F., Surareungchai W., La-O-Vorakiat C.
Publisher: Royal Society of Chemistry
Publication year: 2018
Volume number: 6
Issue number: 16
Start page: 7162
End page: 7167
Number of pages: 6
ISSN: 2050-7488
eISSN: 2050-7488
Languages: English-Great Britain (EN-GB)
View in Web of Science | View on publisher site | View citing articles in Web of Science
Abstract
The latest developments of miniature supercapacitors or microsupercapacitors involve the optimization of both energy-storage density and scalability of the manufacturing processes. Due to the reduced size and the compromised performance with material printability or cost, microsupercapacitors might behave non-ideally and non-linearly in real applications. Here we introduce a simple but powerful characterization method based on equivalent circuit analysis to explore the consequences of these imperfections on the charging and discharging properties of microsupercapacitors. Under voltage control, an asymmetric behavior of the voltammetry emerges upon charging and discharging, a part of the storage being hidden from the external circuit. Under current control, the capacitance is dependent on the magnitude and symmetry of applied current. These non-linear effects have to be incorporated into future consideration of any microsupercapacitor circuits. ฉ 2018 The Royal Society of Chemistry.
Keywords
No matching items found.
Contact Information