Synthesis and Characterization of Lithium Bis(fluoromalonato)borate for Lithium-Ion Battery Applications
Chen Liao, Kee Sung Han, Loïc Baggetto, Daniel A. Hillesheim, Radu Custelcean, Eun-Sung Lee, Bingkun Guo, Zhonghe Bi, De-en Jiang, Gabriel M. Veith, Edward W. Hagaman, Gilbert M. Brown, Craig Bridges, M. Parans Paranthaman, Arumugam Manthiram, Sheng Dai and Xiao-Guang Sun
Version of Record online: 13 NOV 2013 | DOI: 10.1002/aenm.201301368
Lithium bis(fluoromalonato)borate (LiBFMB) is synthesized for the first time for application in lithium ion batteries. The presence of fluorine in LiBFMB increases the oxidation potential and facilitates ion dissociation. The work presented shows that solvent has a major effect on the LiBFMB solubility as well as the surface chemistry, impedance, and cell performance in lithium nickel manganese oxide (LiNi0.5Mn1.5O4)-based 5.0 V batteries.