Effect of carbonates fluorination on the properties of LiTFSI-based electrolytes for Li-ion batteries

被引：32
作者：
Bolloli, Marco [1 ,2 ]
Alloin, Fannie [1 ,2 ]
Kalhoff, Julian [3 ,4 ]
Bresser, Dominic [3 ,4 ,5 ,6 ]
Passerini, Stefano [3 ,4 ,5 ,6 ]
Judeinstein, Patrick [7 ]
Lepretre, Jean-Claude [1 ,2 ]
Sanchez, Jean-Yves [1 ,2 ]
机构：
[1] Univ Grenoble Alpes, LEPMI, F-38000 Grenoble, France
[2] CNRS, LEPMI, F-38000 Grenoble, France
[3] Univ Munster, Inst Phys Chem, D-48149 Munster, Germany
[4] Univ Munster, MEET, D-48149 Munster, Germany
[5] Helmholtz Inst Ulm, D-89081 Ulm, Germany
[6] Karlsruher Inst Technol, D-76344 Eggenstein Leopoldshafen, Germany
[7] CEA Saclay, UMR CNRS CEA 12, Leon Brillouin Lab, F-91191 Gif Sur Yvette, France
来源：
ELECTROCHIMICA ACTA | 2015年 / 161卷
关键词：
fluorinated carbonates; electtrolyte; lithium-ion battery; LiTFSI; ALUMINUM CURRENT COLLECTOR; ETHYLENE CARBONATE; CYCLIC CARBONATES; LITHIUM BATTERIES; GRAPHITE ANODES; VISCOSITY; SOLVENTS; CONDUCTIVITY; STABILITY; CORROSION;
D O I：
10.1016/j.electacta.2015.02.042
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
Electrolyte compositions based on LiTFSI dissolved in fluorinated linear and cyclic carbonates were characterized regarding their transport and thermal properties, viscosity, solvation ability, electrochemical stability towards oxidation, as well as their ability to inhibit the aluminum current collector corrosion. As a result of the thorough investigation, different binary mixtureswere prepared, which offer beneficial properties in terms of aluminum current collector protection and provide optimized transport properties. The use of LiTFSI as electrolyte salt rather than the state-of-the-art lithium salt, LiPF6, enables substantial improvements with respect to safety, while maintaining high performance liquid electrolyte. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码：159 / 170
页数：12
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