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Storing electricity as chemical energy: beyond traditional electrochemistry and double-layer compression

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Abstract

Extending the range of analysis of previous measurements on energy storage in ionic liquid (IL)-based supercapacitors with very well defined carbon materials indicates that there are two distinct processes at play: the one at lower voltages is (classically) related to the micropore inclusion of single ions, while a previously unknown high voltage transition can be ascribed to a change in the structure and coordination number of the ionic liquid. This opinion article discusses a proof of circumstantial evidence for this so far weakly understood and often overlooked mode of energy storage, which in principle could take supercapacitors to a new level of energy storage.

Graphical abstract: Storing electricity as chemical energy: beyond traditional electrochemistry and double-layer compression

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Publication details

The article was received on 13 Jun 2018, accepted on 20 Aug 2018 and first published on 07 Sep 2018


Article type: Opinion
DOI: 10.1039/C8EE01723A
Citation: Energy Environ. Sci., 2018, Advance Article
  • Open access: Creative Commons BY license
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    Storing electricity as chemical energy: beyond traditional electrochemistry and double-layer compression

    M. Antonietti, X. Chen, R. Yan and M. Oschatz, Energy Environ. Sci., 2018, Advance Article , DOI: 10.1039/C8EE01723A

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