Proceedings of the Korean Fiber Society Conference (한국섬유공학회:학술대회논문집)
- 2003.10a
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- Pages.69-70
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- 2003
Supercapacitor performances of carbon nanotube composite carbon fibers from electrospinning
- Yang, Kap-Seung (Faculty of Applied Chemical Engineering, Chonnam National University) ;
- Kim, Chan (Faculty of Applied Chemical Engineering, Chonnam National University) ;
- Lee, Wan-Jin (Faculty of Applied Chemical Engineering, Chonnam National University)
- Published : 2003.10.01
Abstract
10 wt.% of PAN was dissolved in N,N-dimethylformamide (DMF) and 1 wt. % of the multi wall carbon nanotubes (MWCNTs) was evenly dispersed in PAN solution by using ultrasonic miner. The 1 wt.% addition of MWCNT increased the specific capacitance by two times more from 82 to 160 F/g. The specific capacitance of carbon nanofiber(CNF)/carbon nanotube(CNT) composite capacitors was about 90 F/g at the current density of 500 mA/g. This value is even larger than the capacitance from the CNF electrode at the current density of 5 mA. The relatively high capacitance at the high current density is a practical importance for applications to supercapacitor in motor vehicle.
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