NDLI: On the Performances of Ionic Liquid-Based Electrolytes for Li-NMC Batteries

Content Provider	Springer Nature Link
Author	Chaudoy, Victor Ghamouss, Fouad Jacquemin, Johan Houdbert, Jean Christophe Tran Van, François
Copyright Year	2015
Abstract	Herein, the N-butyl-N-methylpyrrolidinium bis(fluorosulfonyl)amide and the N-propyl-N-methylpyrrolidinium bis(fluorosulfonyl)amide room temperature ionic liquids, combined with the lithium bis(trifluoromethanesulfonyl)amide salt, are investigated as electrolytes for Li/LiNi$_{1/3}$Mn$_{1/3}$Co$_{1/3}$O$_{2}$ (Li/NMC) batteries. To conduct this study, volumetric properties, ionic conductivity and viscosity of the pure ionic liquids and selected electrolytes were firstly determined as a function of temperature and composition in solution. These data were then compared with those measured in the case of the standard alkyl carbonate-based electrolyte: e.g. the EC/PC/3DMC + 1 mol·L$^{−1}$ LiPF$_{6}$. The compatibility of the selected electrolytes with the lithium electrode was then investigated by following the evolution of Li/electrolyte interfaces through impedance measurements. Interestingly, the impedances of the investigated Li/electrolyte interfaces were found to be more than three times lower than that measured using the standard electrolyte. Finally, electrochemical performances of the ionic liquid-based electrolytes were investigated using galvanostatic charge and discharge and cyclic voltammetry of each Li/NMC cell. Using these electrolytes, each tested Li cell reaches up to 145 mA·h·g$^{−1}$ at C/10 and 110 mA·h·g$^{−1}$ at C with a coulombic efficiency close to 100 %.
Starting Page	769
Ending Page	789
Page Count	21
File Format	PDF
ISSN	00959782
Journal	Journal of Solution Chemistry
Volume Number	44
Issue Number	3-4
e-ISSN	15728927
Language	English
Publisher	Springer US
Publisher Date	2015-03-12
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Ionic liquids Lithium salt Transport properties Electrochemical performance NMC batteries Physical Chemistry Industrial Chemistry/Chemical Engineering Geochemistry Oceanography Inorganic Chemistry Condensed Matter Physics
Content Type	Text
Resource Type	Article
Subject	Biochemistry Molecular Biology Biophysics Physical and Theoretical Chemistry

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