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Redox electrolytes in supercapacitors

Akinwolemiwa, Bamidele; Peng, Chuang; Chen, George Z.

Authors

Bamidele Akinwolemiwa

Chuang Peng

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GEORGE CHEN GEORGE.CHEN@NOTTINGHAM.AC.UK
Professor of Electrochemical Technologies



Abstract

© The Author(s) 2015. Most methods for improving supercapacitor performance are based on developments of electrode materials to optimally exploit their storage mechanisms, namely electrical double layer capacitance and pseudocapacitance. In such cases, the electrolyte is supposed to be electrochemically as inert as possible so that a wide potential window can be achieved. Interestingly, in recent years, there has been a growing interest in the investigation of supercapacitors with an electrolyte that can offer redox activity. Such redox electrolytes have been shown to offer increased charge storage capacity, and possibly other benefits. There are however some confusions, for example, on the nature of contributions of the redox electrolyte to the increased storage capacity in comparison with pseudocapacitance, or by expression of the overall increased charge storage capacity as capacitance. This report intends to provide a brief but critical review on the pros and cons of the application of such redox electrolytes in supercapacitors, and to advocate development of the relevant research into a new electrochemical energy storage device in parallel with, but not the same as that of supercapacitors.

Journal Article Type Article
Publication Date 2015
Journal Journal of the Electrochemical Society
Print ISSN 0013-4651
Electronic ISSN 1945-7111
Publisher Electrochemical Society
Peer Reviewed Peer Reviewed
Volume 162
Issue 5
Pages A5054-A5059
APA6 Citation Akinwolemiwa, B., Peng, C., & Chen, G. Z. (2015). Redox electrolytes in supercapacitors. Journal of The Electrochemical Society, 162(5), A5054-A5059. https://doi.org/10.1149/2.0111505jes
DOI https://doi.org/10.1149/2.0111505jes
Publisher URL http://jes.ecsdl.org/content/162/5/A5054
Copyright Statement Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by/4.0
Additional Information Authors may also deposit the published PDF of these OA articles in their institutional repositories, if they wish to. http://ecsdl.org/site/misc/oa.xhtml#9

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Copyright Statement
Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by/4.0





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