Journal of the Korean Applied Science and Technology (한국응용과학기술학회지)

The Korean Society of Applied Science and Technology (한국응용과학기술학회)
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The electrochemical characteristics of EDLC with various activated carbons

다양한 활성탄 종류에 따른 EDLC 전기화학적 특성

  • Yoon, Hong-Jin (Department of Chemical Engineering, Research Institute of Industrial Sci. & Tech., Chungbuk National Univ.) ;
  • Lee, Chang-Ho (Department of Chemical Engineering, Research Institute of Industrial Sci. & Tech., Chungbuk National Univ.) ;
  • Lee, Jong-Dae (Department of Chemical Engineering, Research Institute of Industrial Sci. & Tech., Chungbuk National Univ.)
  • 윤홍진 (충북대학교 화학공학과, 충북대학교 산업과학기술연구소) ;
  • 이창호 (충북대학교 화학공학과, 충북대학교 산업과학기술연구소) ;
  • 이종대 (충북대학교 화학공학과, 충북대학교 산업과학기술연구소)
  • Received : 2011.05.20
  • Accepted : 2011.06.01
  • Published : 2011.06.30
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Abstract

The electrochemical characteristics of electric double layer capacitor(EDLC) were investigated using various carbon materials. The physical properties such as specific surface area and mean pore size of activated carbon were analyzed by BET. The results of the activated carbon used for electrode material showed that the specific surface areas varied from 600 to 1500 $m^2$/g and mean pore sizes from 1.74 to 2.88 nm. A maximum specific capacitance of 0.30 F/$cm^2$ was obtained for the activated carbon with the highest specific surface area and ionic conductivity. Also, it was found that the electrochemical results of the cyclic charge-discharge tests were stable.

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References

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