Mixtures of ionic liquid and organic carbonate as electrolyte with improved safety and performance for rechargeable lithium batteries

被引：261
作者：
Kuehnel, R. -S. [1 ]
Boeckenfeld, N. [1 ]
Passerini, S. [1 ]
Winter, M. [1 ]
Balducci, A. [1 ]
机构：
[1] Univ Munster, Inst Phys Chem, D-48149 Munster, Germany
来源：
ELECTROCHIMICA ACTA | 2011年 / 56卷 / 11期
关键词：
Lithium-ion batteries; Ionic liquids; PC; Mixtures; LiFePO4; SALT ELECTROLYTES; MOLTEN-SALTS; GRAPHITE; STABILITY; CORROSION; INSERTION; ALUMINUM; IMIDE;
D O I：
10.1016/j.electacta.2011.01.116
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
In this paper we report the results of physical-chemical and electrochemical investigations performed on ternary mixtures of the room temperature ionic liquid (IL) N-butyl-N-methylpyrrolidinium bis(trifluoromethanesulfonyl)imide (PYR14TFSI), propylene carbonate (PC), and lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) as electrolyte for lithium-ion batteries. The thermal stability, ionic conductivity, viscosity and electrochemical stability windows of all considered mixtures were investigated and compared with those of electrolytes based on the pure PYR14TFSI and PC. The mixtures were also used as electrolyte in combination with LiFePO4-based electrodes. The specific capacity and cycling stability of these systems were investigated at different C-rates, both at room temperature and 60 degrees C. (C) 2011 Elsevier Ltd. All rights reserved.
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页码：4092 / 4099
页数：8
相关论文
共 29 条
[1]  
[Anonymous], 2002, ADV LITHIUM ION BATT
[2]   Synthesis of hydrophobic ionic liquids for electrochemical applications [J].
Appetecchi, Giovanni B. ;
Scaccia, Silvera ;
Tizzani, Cosimo ;
Alessandrini, Fabrizio ;
Passerini, S. .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2006, 153 (09) :A1685-A1691
[3]   Lithium insertion in graphite from ternary ionic liquid-lithium salt electrolytes I. Electrochemical characterization of the electrolytes [J].
Appetecchi, Giovanni B. ;
Montanino, Maria ;
Balducci, Andrea ;
Lux, Simon F. ;
Winterb, Martin ;
Passerini, Stefano .
JOURNAL OF POWER SOURCES, 2009, 192 (02) :599-605
[4]   Effect of the alkyl group on the synthesis and the electrochemical properties of N-alkyl-N-methyl-pyrrolidinium bis(trifluoromethanesulfonyl)imide ionic liquids [J].
Appetecchi, Giovanni B. ;
Montanino, Maria ;
Zane, Daniela ;
Carewska, Maria ;
Alessandrini, Fabrizio ;
Passerini, Stefano .
ELECTROCHIMICA ACTA, 2009, 54 (04) :1325-1332
[5]   On the application of ionic liquids for rechargeable Li batteries: High voltage systems [J].
Borgel, V. ;
Markevich, E. ;
Aurbach, D. ;
Semrau, G. ;
Schmidt, M. .
JOURNAL OF POWER SOURCES, 2009, 189 (01) :331-336
[6]   Imidazolium-organic solvent mixtures as electrolytes for lithium batteries [J].
Chagnes, A ;
Diaw, A ;
Carre, B ;
Willmann, P ;
Lemordant, D .
JOURNAL OF POWER SOURCES, 2005, 145 (01) :82-88
[7]   Room temperature molten salts as lithium battery electrolyte [J].
Garcia, B ;
Lavallée, S ;
Perron, G ;
Michot, C ;
Armand, M .
ELECTROCHIMICA ACTA, 2004, 49 (26) :4583-4588
[8]   LiFePO4 and graphite electrodes with ionic liquids based on bis(fluorosulfonyl)imide (FSI)- for Li-ion batteries [J].
Guerfi, A. ;
Duchesne, S. ;
Kobayashi, Y. ;
Vijh, A. ;
Zaghib, K. .
JOURNAL OF POWER SOURCES, 2008, 175 (02) :866-873
[9]   Improved electrolytes for Li-ion batteries: Mixtures of ionic liquid and organic electrolyte with enhanced safety and electrochemical performance [J].
Guerfi, A. ;
Dontigny, M. ;
Charest, P. ;
Petitclerc, M. ;
Lagace, M. ;
Vijh, A. ;
Zaghib, K. .
JOURNAL OF POWER SOURCES, 2010, 195 (03) :845-852
[10]   Stable cycling of graphite in an ionic liquid based electrolyte [J].
Holzapfel, M ;
Jost, C ;
Novák, P .
CHEMICAL COMMUNICATIONS, 2004, (18) :2098-2099
123