Electrochemical performance of hybrid supercapacitor fabricated using multi-structured activated carbon

被引：31
|
作者：
Cho, Min-Young [1 ,2 ]
Kim, Mok-Hwa [1 ,2 ]
Kim, Hyun-Kyung [2 ]
Kim, Kwang-Bum [2 ]
Yoon, Jung Rag [3 ]
Roh, Kwang Chul [1 ]
机构：
[1] Korea Inst Ceram Engn & Technol, Energy &Environm Div, Energy Efficient Mat Team, Seoul 153801, South Korea
[2] Yonsei Univ, Dept Mat Sci & Engn, Seoul 120749, South Korea
[3] Samwha Capacitor Co Ltd, R&D Ctr, Yongin 449884, Gyeonggi, South Korea
来源：
ELECTROCHEMISTRY COMMUNICATIONS | 2014年 / 47卷
关键词：
Activated carbon; Partially graphitic activated carbon; Li4Ti5O12; Ultracapacitor; Hybrid supercapacitor; HIGH-ENERGY; LI4TI5O12; ELECTRODE; CATHODE; ANODE;
D O I：
10.1016/j.elecom.2014.07.012
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
We used multi-structured activated carbon electrodes to fabricate hybrid supercapacitors (HSCs) showing excellent electrochemical performance. As the active material, the activated carbon coupled with Li4Ti5O12 showed a partially graphitized as well as a porous structure, and thus provided two different capacitive mechanisms: electric double layer capacitance and shallow intercalation. HSCs produced with this unique structure show excellent specific capacitances of 77 F g(-1) and 62 F cm(-3). Partially graphitic activated carbon has great potential for HSC applications. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：5 / 8
页数：4
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