Evaluation of Ionic Liquid Electrolytes for Use in Manganese Oxide Supercapacitors

被引：22
|
作者：
Chang, Jeng-Kuei [1 ]
Lee, Ming-Tsung [1 ]
Cheng, Chi-Wei [1 ]
Tsai, Wen-Ta [1 ]
Deng, Ming-Jay [2 ]
Sun, I. -Wen [2 ]
机构：
[1] Natl Cheng Kung Univ, Dept Mat Sci & Engn, Tainan 70101, Taiwan
[2] Natl Cheng Kung Univ, Dept Chem, Tainan 70101, Taiwan
来源：
ELECTROCHEMICAL AND SOLID STATE LETTERS | 2009年 / 12卷 / 01期
关键词：
ionic conductivity; manganese compounds; polymer electrolytes; supercapacitors; thermal stability; ELECTROCHEMICAL CAPACITORS; DICYANAMIDE ANION; ANODIC DEPOSITION; BEHAVIOR; CONDUCTIVITY; ELECTRODES; STORAGE; PERFORMANCE; RELEVANCE; DIOXIDE;
D O I：
10.1149/1.3013028
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
Development of Mn oxide supercapacitors incorporating ionic liquid (IL) electrolytes was attempted. The experimental results indicate the possibility of achieving pseudocapacitive performance of Mn oxide in ILs without involving protons and alkali cations, thus opening a route of developing electrolytes for oxide-based pseudocapacitors. In 1-ethyl-3-methylimidazolium-dicyanamide aprotic IL, Mn oxide can exhibit a specific capacitance of 72 F/g in a potential window of 2 V. Due to high ionic conductivity, large electrochemical windows, excellent thermal stability, and nonflammability of the IL, a high-voltage and long-life energy storage system is successfully proposed.
引用
收藏
页码：A19 / A22
页数：4
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