Thursday, 23 June 2016
Riverside Center (Hyatt Regency)
Ionic liquids are being considered as an alternative for Li-ion batteries electrolytes since many of them are non-flammable, which is one of the most problematic safety issues in Li-ion batteries [1-3]. In this particular case, we are investigating the solvation of lithium (Li+) in Ethylammonium Nitrate (EAN) [4-5] by means of first principles simulations and metadynamics simulations [6-8]. The structures of the local environment of the lithium cation and its coordination have been analyzed. The simulations show that the Li+cation undergoes different lithium coordination number with the nitrate ions. Analysis of the energy minima for the relevant lithium coordination is also discussed.
References
- Handbook of Green Chemistry, Volume 6: Ionic Liquids, Edited by Peter Wasserscheid and Annegret Stark. Copyright©(2010) WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim, ISBN: 978-3-527-32592-4.
- A. Leawndowski, Agnieszka Świderska-Mocek, Ionic liquids as electrolytes for Li-ion batteries-An overview of electrochemical studies, J. Power Sources 194, 601-609 (2009).
- Douglas R. MacFarlane, Naoki Tachikawa, Maria Forsyth, Jennifer M. Pringle, Patrick C. Howlett, Gloria D. Elliott, James H. Davis, Jr., Masayoshi Watanabe, Patrice Simon, C. Austen Angell, Energy applications of ionic liquids, Energy Environ. Sci., 7, 232-250, (2014).
- Robert Hayes, Stephen A. Bernard, Silvia Imberti, Gregory G. Warr, and Rob Atkin, Solvation of Inorganic Nitrate Salts in Protic Ionic Liquids, J. Phys. Chem. C., 118 (36), 21215–21225, (2014).
- Meńdez-Morales, T.; Carrete, J.; O. Cabeza, ; Russina, O.; Triolo, A.; Gallego, L. J.; Varela, L. M. Solvation of Lithium Salts in Protic Ionic Liquids: A Molecular Dynamics Study. J. Phys. Chem. B, 118, 761−770, (2014).
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- A. Laio, M. Parrinello, Escaping free-energy minima. Proceedings of the National Academy of Sciences of the United States of America 99(20), 12562-12566, (2002).
- M. Iannuzzi, A. Laio, M. Parrinello, Efficient Exploration of Reactive Potential Energy Surfaces Using Car-Parrinello Molecular Dynamics, PRL 90, 238302 (2003).
- CP2K, http://www.cp2k.org/