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Int. J. Mol. Sci. 2014, 15(5), 8122-8137; doi:10.3390/ijms15058122
Article

Ionic Liquid Electrolytes for Li–Air Batteries: Lithium Metal Cycling

1
,
1,* , 1
,
2
 and
1,3,*
Received: 7 March 2014 / Revised: 16 April 2014 / Accepted: 17 April 2014 / Published: 8 May 2014
(This article belongs to the Special Issue Ionic Liquids 2014 & Selected Papers from ILMAT 2013)
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Abstract

In this work, the electrochemical stability and lithium plating/stripping performance of N-butyl-N-methylpyrrolidinium bis(trifluoromethanesulfonyl)imide (Pyr14TFSI) are reported, by investigating the behavior of Li metal electrodes in symmetrical Li/electrolyte/Li cells. Electrochemical impedance spectroscopy measurements and galvanostatic cycling at different temperatures are performed to analyze the influence of temperature on the stabilization of the solid electrolyte interphase (SEI), showing that TFSI-based ionic liquids (ILs) rank among the best candidates for long-lasting Li–air cells.
Keywords: lithium air batteries; ionic liquids; lithium metal; electrolytes; Pyr14TFSI; efficiency calculation; solid electrolyte interphase (SEI) lithium air batteries; ionic liquids; lithium metal; electrolytes; Pyr14TFSI; efficiency calculation; solid electrolyte interphase (SEI)
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Grande, L.; Paillard, E.; Kim, G.-T.; Monaco, S.; Passerini, S. Ionic Liquid Electrolytes for Li–Air Batteries: Lithium Metal Cycling. Int. J. Mol. Sci. 2014, 15, 8122-8137.

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