Low-viscosity ether-functionalized pyrazolium ionic liquids as new electrolytes for lithium battery

被引：36
|
作者：
Chai, Ming [1 ]
Jin, Yide [1 ]
Fang, Shaohua [1 ]
Yang, Li [1 ]
Hirano, Shin-ichi [2 ]
Tachibana, Kazuhiro [3 ]
机构：
[1] Shanghai Jiao Tong Univ, Sch Chem & Chem Technol, Shanghai 200240, Peoples R China
[2] Shanghai Jiao Tong Univ, Hirano Inst Mat Innovat, Shanghai 200240, Peoples R China
[3] Yamagata Univ, Fac Engn, Dept Chem & Chem Engn, Yamagata 9928510, Japan
来源：
JOURNAL OF POWER SOURCES | 2012年 / 216卷
基金：
中国国家自然科学基金;
关键词：
Ionic liquid; Lithium battery; Functionalized cation; Electrolyte; ELECTROCHEMICAL PROPERTIES; IMIDAZOLIUM; COMPLEXES; CATIONS; SALTS;
D O I：
10.1016/j.jpowsour.2012.05.082
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Four new functionalized ILs based on pyrazolium cations and bis(trifluoromethylsulfonyl)imide anions (TFSI-) are synthesized and characterized. These ILs show low-melting point and low-viscosity characteristics, and the viscosity of OEPZ-TFSI is 41.2 mPa s at 25 degrees C. These IL electrolytes with 0.4 mol kg(-1) LiTFSI have good chemical stability against lithium metal. Li/LiFeO4 cells using these IL electrolytes without additives own good electrochemical performance, and the cells using OMPZ-TFSI and OEPZ-TFSI electrolytes own better rate property. (C) 2012 Elsevier B.V. All rights reserved.
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页码：323 / 329
页数：7
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