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- In relation to this article, we declare that there is no conflict of interest.
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Received May 6, 2010
Accepted June 12, 2010
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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
한밭대학교 응용화학생명공학부, 305-719 대전광역시 유성구 덕명동 산16-1
Department of Applied Chemistry and Biotechnology, Hanbat National University, 16-1 San, Deongmyeong-dong, Yuseong-gu, Daejeon 305-719, Korea
jmko@hanbat.ac.kr
Korean Chemical Engineering Research, August 2010, 48(4), 440-443(4), NONE Epub 8 September 2010
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Abstract
양극인 Co-Mn oxide과 음극인 활성탄, 전해질인 6M 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.
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Reddy RN, Reddy RG, J. Power Sources, 124(1), 330 (2003)
Wan CY, Azumi K, Konno H, Electrochim. Acta, 52(9), 3061 (2007)
Li J, Wang XY, Huang QH, Gamboa S, Sebastian PJ, J. Power Sources, 160(2), 1501 (2006)
Sivakkumar SR, Ko JM, Kim DY, Kim BC, Wallace GG, Electrochim. Acta, 52(25), 7377 (2007)
Prabaharan SRS, Vimala R, Zainal Z, J. Power Sources, 161(1), 730 (2006)
Takasu Y, Murakami Y, Electrochim. Acta, 45(25-26), 4135 (2000)
Hu CC, Tsou TW, Electrochim. Acta, 47(21), 3523 (2002)
Shinomiya T, Gupta V, Miura N, Electrochim. Acta, 51, 4412 (2006)
Broughton JN, Brett MJ, Electrochim. Acta, 50(24), 4814 (2005)
Jin CS, Lee YS, Shin KH, Kim JH, Yoon SG, J. Electrochem. Soc., 6, 145 (2003)
