Journal
ELECTROCHIMICA ACTA
Volume 56, Issue 13, Pages 4841-4848Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2011.01.125
Keywords
Ionic liquid; Solid electrolyte interphase; Electrolyte; Safety; Li-ion battery
Categories
Funding
- 863 Foundation of China [20009AA11A105]
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A safe electrolyte system is prepared from N-methyl-N-propylpiperidinium bis (trifluoromethanesulfonyl) imide (PP13TFSI), organic electrolyte (1 mol L(-1) LiPF(6)/EC-DEC) and lithium bis (oxalato) borate (LiBOB). The additive of LiBOB enhances the stability of interface between electrolyte and anode. The LiBOB-containing mixed electrolytes show non-flammability and good compatibility with active materials. The performance of anode for lithium ion battery is successfully improved by LiBOB-containing mixed electrolytes, which shows 200 mA h g(-1) reversible capacities at 0.3 C rate. The ionic conductivity and the lithium ion transference number in LiBOB-containing mixed electrolytes system also suits to application for lithium ion battery. (C) 2011 Elsevier Ltd. All rights reserved.
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