Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)
- 2004.11a
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- Pages.683-686
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- 2004
The study of electrode for energy storaging at supercapacitor system using nano carbon fiber material
나노 탄소재료를 이용한 에너지 저장형 슈퍼커패시터용 전극 제조
- Hwang, Sung-Ik (Dept. of Ind. Chem. Eng., Chungbuk Nat'l Univ.) ;
- Choi, Won-Kyung (Dept. of Ind. Chem. Eng., Chungbuk Nat'l Univ.) ;
- Momma, Toshiyukl (Applied. Chem., Graduate School of Sci. and Eng., Waseda Univ.) ;
- Osaka, Tetsuya (Applied. Chem., Graduate School of Sci. and Eng., Waseda Univ.) ;
- Park, Soo-Gil (Dept. of Ind. Chem. Eng., Chungbuk Nat'l Univ.)
- Published : 2004.11.11
Abstract
In recent years, the supercapacitor and hybrid capacitor have related with substitutional energy source focused of many scientists because of their usage in power sources for electric vehicles, computers and other electric devices. The storage energy of electrical charge is based on electrostatic interactions in the electric double layer at the electrode/electrolyte interface, resulting in high rate capability and long cycle performance compared with batteries based on Faradaic electrode reactions. So we have been considered to carbon nanofibers as the ideal material for supercapacitors due to their high utilization of specific surface area, good conductivity, chemical stability and other advantages. In this work, we aimed to find out that the capacitance have increased because of electrochemical capacitance to provide by carbon nanofibers. Also carbon nanofibers based on chemical method and water treatment have been resulted larger capacitances and also exhibit better electrochemical behaviors about 15% than before of nontreated state. And also optical observations with treated and nontrteated carbon nanofibers discussed by the TEM, SEM, EDX, BET works and specific surface area analyzer. Their results also focused on the surface area of electrode and electrical capacitance was also improved by the effect of surface treatments.