Title: Electrodeposition of Lithium from Lithium-Containing Solvate Ionic Liquids
Authors: Vanhoutte, Gijs
Brooks, Neil R.
Schaltin, Stijn
Opperdoes, Bastiaan
Van Meervelt, Luc
Locquet, Jean-Pierre
Vereecken, Philippe M.
Fransaer, Jan
Binnemans, Koen # ×
Issue Date: 2014
Publisher: American Chemical Society
Series Title: Journal of Physical Chemistry C vol:118 issue:35 pages:20152-20162
Abstract: Lithium-containing solvate ionic liquids [Li(L)n][X], with ligands L = 1,2-dimethoxyethane (G1, monoglyme) or 1-methoxy-2-(2-methoxyethyl)ether (G2, diglyme) (with n = 1, 2 or 3) and with anions X = bis(trifluoromethylsulfonyl)imide (Tf2N–), bromide (Br–) or iodide (I–), were synthesized and used as electrolytes for the electrodeposition of lithium metal. Very high lithium-ion concentrations could be obtained, since the lithium ion is part of the cationic structure of the solvate ionic liquids. Without stirring, current densities up to −26 A dm–2 at a potential of −0.5 V vs Li/Li+ were registered during cyclic voltammetry. The formation of a solid–electrolyte interface during electrodeposition of lithium from [Li(G1)2][Tf2N] was studied by electrochemical quartz microbalance and Auger electron spectroscopy. SEM pictures revealed uniform and nondendritic lithium deposits.
ISSN: 1932-7447
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Molecular Design and Synthesis
Biochemistry, Molecular and Structural Biology Section
Solid State Physics and Magnetism Section
Centre for Surface Chemistry and Catalysis
Surface and Interface Engineered Materials
× corresponding author
# (joint) last author

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