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A Stable Fluorinated and Alkylated Lithium Malonatoborate Salt for Lithium Ion Battery Application...

by Shun Wan, Xueguang Jiang, Bingkun Guo, Sheng Dai, Xiao-guang Sun
Publication Type
Journal
Journal Name
Chemical Communications
Publication Date
Page Numbers
9817 to 9820
Volume
51
Issue
48

A new fluorinated and alkylated lithium malonatoborate salt, lithium bis(2-methyl-2-fluoromalonato)borate (LiBMFMB), has been synthesized for lithium ion battery application. A 0.8 M LiBMFMB solution is obtained in a mixture of ethylene carbonate (EC) and ethyl methyl carbonate (EMC) (1:2 by wt.). The new LiBMFMB based electrolyte exhibits good cycling stability and rate capability in LiNi0.5Mn1.5O4 and graphite based half-cells.