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Updated: May 9, 2026

Synthesis of Ionic Liquid Based Electrolytes, Assembly of Li-ion Batteries, and Measurements of Performance at High Temperature
Published on: December 20, 2016
A joint theoretical/experimental study of the structure, dynamics, and Li+ transport in
C J F Solano1, S Jeremias, E Paillard
1Laboratory for Chemistry of Novel Materials, University of Mons, Place du Parc 20, 7000 Mons, Belgium. CarlosJose.FernandezSolano@umons.ac.be
Abstract:
The structure and dynamics of N-butyl-N-methyl pyrrolidinium(+) bis([tri]fluoro[methane]sulfonyl)imide(-) (PYR14(+)-[T]FSI(-)) ionic liquids doped with Li(T)FSI are investigated by combining experimental measurements to molecular dynamics simulations. The polarizable force field calculations indicate that the lithium cations are coordinated by (T)FSI anion oxygens forming lithium adducts stabilized over a large temperature range by strong Li-O bonds. Lithium aggregation is found to be negligible at the doping level considered here (10% mole fraction), and Li(+) diffusion occurs primarily by exchanging the (T)FSI anions in their first coordination shell. The resulting calculated transport properties are in good agreement with the corresponding nuclear magnetic resonance data.
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