Leite Martins, V. orcid.org/0000-0002-8824-7328, Rennie, A.J.R., Lesowiec, J. et al. (2 more authors) (2017) Using Polymeric Ionic Liquids as an Active Binder in Supercapacitors. Journal of the Electrochemical Society, 164 (13). A3253-A3258. ISSN 0013-4651
Abstract
Electrodes in batteries and supercapacitors generally contain inert binders to maintain their structural integrity during operation but do not participate in the storage of energy. In this paper, we demonstrate that poly ionic liquids can function as structural binders while simultaneously improving the energy storage capability of supercapacitors. Specifically, we show that when the ionic liquid N-butyl-N-methyl pyrrolidinium bis(trifluoromethanesulfonyl)imide is used as electrolyte and poly(diallyldimethylammonium) bis(trifluoromethanesulfonyl)imide is employed as electrode binder the permissible operating voltage of the device is enhanced to 4.0 V. This results in a substantially increased overall specific energy (80% greater) and represents a step toward the development of devices with long cycle lives and high energy densities.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © The Author(s) 2017. Published by ECS. This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 License (CC BY, http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse of the work in any medium, provided the original work is properly cited. |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Chemical and Biological Engineering (Sheffield) |
Funding Information: | Funder Grant number ENGINEERING AND PHYSICAL SCIENCE RESEARCH COUNCIL (EPSRC) EP/K021192/1 |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 02 Nov 2017 16:01 |
Last Modified: | 02 Nov 2017 16:10 |
Published Version: | https://doi.org/10.1149/2.1411713jes |
Status: | Published |
Publisher: | Electrochemical Society |
Refereed: | Yes |
Identification Number: | 10.1149/2.1411713jes |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:123314 |
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