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.

引用

页码：323 / 329

页数：7

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