Issue 43, 2021
From the journal:

Chemical Communications

High temperature supercapacitors using water-in-salt electrolytes: stability above 100 °C†

Lewis W. Le Fevre,abc   Andinet Ejigu,bc   Rebecca Todd,a   Andrew J. Forsytha  and  Robert A. W. Dryfe ORCID logo *bc  

* Corresponding authors

a Department of Electrical and Electronic Engineering, The University of Manchester, Manchester, UK

b Department of Chemistry, The University of Manchester, Manchester, UK
E-mail: robert.dryfe@manchester.ac.uk

c National Graphene Institute, The University of Manchester, Manchester, UK

Abstract

The high temperature performance of water-in-salt electrolytes was investigated using a carbon-based electrode with commercial cell components. Supercapacitors using 21 m Li bis(trifluoromethylsulphonyl)imide (TFSI) and 21 m LiTFSI + 7 m Li trifluoromethanesulphonyl electrolytes are shown to operate at a voltage of 2 V at 100 °C and 120 °C, respectively, with gravimetric capacitances exceeding 100 F g−1.

Graphical abstract: High temperature supercapacitors using water-in-salt electrolytes: stability above 100 °C

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Article information

DOI
https://doi.org/10.1039/D1CC01087E
Article type
Communication
Submitted
26 Feb 2021
Accepted
26 Apr 2021
First published
27 Apr 2021
This article is Open Access
Creative Commons BY license

Chem. Commun., 2021,57, 5294-5297

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High temperature supercapacitors using water-in-salt electrolytes: stability above 100 °C

L. W. Le Fevre, A. Ejigu, R. Todd, A. J. Forsyth and R. A. W. Dryfe, Chem. Commun., 2021, 57, 5294 DOI: 10.1039/D1CC01087E

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