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Issue 27, 2015
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A lithium-ion oxygen battery using a polyethylene glyme electrolyte mixed with an ionic liquid

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Abstract

In this paper, we propose a new electrolyte formed by dissolving lithium-bis-(trifluoromethanesulfonyl)-imide (LiTFSI) salt in a long chain glyme, i.e. poly(ethylene glycol)500-dimethylether (PEG500DME) mixed with methyl butyl pyrrolidinium-bis-(trifluoromethanesulfonyl)-imide (Pyr14TFSI) ionic liquid. The electrolyte composition ensures both very low volatility and good performance as demonstrated by thermal analysis and electrochemical tests. The selected solution is efficiently employed as the electrolyte both in a lithium–oxygen half-cell, and in a full lithium-ion oxygen battery using a Li–Sn–C nanostructured composite anode, thus suggesting the suitability of the polyethylene glyme mixed with the ionic liquid for application in high-energy storage systems.

Graphical abstract: A lithium-ion oxygen battery using a polyethylene glyme electrolyte mixed with an ionic liquid

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Publication details

The article was received on 30 Dec 2014, accepted on 09 Feb 2015 and first published on 09 Feb 2015


Article type: Paper
DOI: 10.1039/C4RA17277A
Citation: RSC Adv., 2015,5, 21360-21365
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    A lithium-ion oxygen battery using a polyethylene glyme electrolyte mixed with an ionic liquid

    G. A. Elia, R. Bernhard and J. Hassoun, RSC Adv., 2015, 5, 21360
    DOI: 10.1039/C4RA17277A

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