Korean Chemical Engineering Research

  • 제48권4호
  • /
  • Pages.440-443
  • /
  • 2010
  • /
  • 0304-128X(pISSN)
  • /
  • 2233-9558(eISSN)
한국화학공학회 (The Korean Institute of Chemical Engineers)
권호 표지

코발트망간 산화물 양전극과 활성탄 음전극으로 구성된 초고용량 커패시터 특성

Supercapacitive Properties of a Hybrid Capacitor Consisting of Co-Mn Oxide Cathode and Activated Carbon Anode

  • 김용일 (한밭대학교 응용화학생명공학부) ;
  • 윤재국 (한밭대학교 응용화학생명공학부) ;
  • 권재성 (한밭대학교 응용화학생명공학부) ;
  • 고장면 (한밭대학교 응용화학생명공학부)
  • Kim, Yong Il (Department of Applied Chemistry and Biotechnology, Hanbat National University) ;
  • Yoon, Je Kook (Department of Applied Chemistry and Biotechnology, Hanbat National University) ;
  • Kown, Je Sung (Department of Applied Chemistry and Biotechnology, Hanbat National University) ;
  • Ko, Jang Myoun (Department of Applied Chemistry and Biotechnology, Hanbat National University)
  • 투고 : 2010.05.06
  • 심사 : 2010.06.12
  • 발행 : 2010.08.31
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

양극인 Co-Mn oxide과 음극인 활성탄, 전해질인 6 M KOH 수용액으로 구성된 혼성 커패시터를 제조하여 cyclic voltammetry를 이용하여 전기화학적 특성을 조사하였다. 제조한 초고용량 커패시터는 0~1.4 V 전위영역에서 안정한 전위창을 나타내며, 주사속도 5 mV/s일 때 비용량 67.3 F/g, 에너지 밀도 18.3 Wh/kg, 출력 밀도는 237.7 kW/kg을 나타내었다.

A hybrid supercapacitor consisting of Co-Mn oxide as a cathode, activated carbon as an anode, and 6 M KOH as a electrolyte was fabricated and its supercapacitor performance was investigated by means of cyclic voltammetry. The prepared supercapacitor showed the specific capacitance of 67.3 F/g, energy density of 18.3 Wh/kg, and power density of 237.7 kW/kg, respectively. It means that the supercapacitor can be used for the practical applications.

키워드

참고문헌

  1. Yoon, Y. I., Kim, K. M. and Ko, J. M., "Effect of Nickel Foam Current Collector on the Supercapacitive Properties of Cobalt Oxide Electrode(in Korean)," J. Korean Ceram. Soc., 45(6), 368-373(2008). https://doi.org/10.4191/KCERS.2008.45.6.368
  2. Kim, Y. I., Yoon, Y. I. and Ko, J. M., "CoMn Oxide/Carbonnanofiber Composite Electrodes for Supercapacitors," J. Korean Ceram. Soc., 45(8), 493-496(2008). https://doi.org/10.4191/KCERS.2008.45.8.493
  3. Reddy, R. N. and Reddy, R. G., "Sol-gel $MnO_2$ as an Electrode Material for Electrochemical Capacitors," J. Power Sources, 124(1), 330-337(2003). https://doi.org/10.1016/S0378-7753(03)00600-1
  4. Wan, C., Azumi, K. and Konno, H., "Hydrated Mn(IV) Oxideexfoliated Graphite Composites for Electrochemical Capacitor," Electrochim. Acta, 52(9), 3061-3066(2007). https://doi.org/10.1016/j.electacta.2006.09.039
  5. Li, J., Wang, X., Huang, Q., Gamboa, S. and Sebastian, P. J., "A New Type of $MnO_2.xH2O/CRF$ Composite Electrode for Supercapacitors," J. Power Sources, 160(2), 1501-1505(2006). https://doi.org/10.1016/j.jpowsour.2006.02.045
  6. Sivakkumar, S. R., Ko, J. M., Kim, D. Y., Kim, B. C. and Wallace, G. G., "Performance Evaluation of $CNT/polypyrrole/MnO_2$ Composite Electrodes for Electrochemical Capacitors," Electrochim. Acta, 52(25), 7377-7385(2007). https://doi.org/10.1016/j.electacta.2007.06.023
  7. Prabaharan, S. R. S., Vimala, R. and Zainal, Z., "Nanostructured Mesoporous Carbon as Electrodes for Supercapacitors," J. Power Sources, 161(1) 730-736(2006). https://doi.org/10.1016/j.jpowsour.2006.03.074
  8. Takasu, Y. and Murakami, Y., "Design of Oxide Electrodes with Large Surface Area," Electrochim. Acta, 45(25-26), 4135-4141(2000). https://doi.org/10.1016/S0013-4686(00)00534-X
  9. Hu, C.-C. and Tsou, T.-W., "Capacitive and Textural Characteristics of Hydrous Manganese Oxide Prepared by Anodic Deposition," Electrochim. Acta, 47(21), 3523-3532(2002). https://doi.org/10.1016/S0013-4686(02)00321-3
  10. Shinomiya, T., Gupta, V. and Miura, N. "Effects of Electrochemical deposition Method and Microstructure on the Capacitive Characteristics of Nano-sized Manganese Oxide," Electrochim. Acta, 51(21), 4412-4419(2006). https://doi.org/10.1016/j.electacta.2005.12.025
  11. Broughton, J. N. and Brett, M. J., "Variations in $MnO_2$ Electro deposition for Electrochemical Capacitors," Electrochim. Acta, 50(24), 4814-4819(2005). https://doi.org/10.1016/j.electacta.2005.03.006
  12. Jin, C. Soo., Lee, Y. S., Shin, K. H., Kim, J. H. and Yoon, S. G., "Fabrication of Aluminum Powder Disk by a Template Method and Its Etching Condition for an Electrode of Hybrid Supercapacitor," J. Electrochem. Soc., 6, 145-125(2003). https://doi.org/10.5229/JKES.2003.6.2.145