왕겨 활성탄 전극을 이용한 전기이중층 커패시터의 성능

김상길; 임정빈; 김경민; 이용욱; 김명수; 강안수; Sang-Gil Kim; Jeong-Bin Yim; Kyung-Min Kim; Yong-Wook Lee; Myung-Soo Kim; An-Soo Kang

HWAHAK KONGHAK, Vol.39, No.4, 424-430, August, 2001

Export Citation

왕겨 활성탄 전극을 이용한 전기이중층 커패시터의 성능

Performance of Electric Double Layer Capacitor of Rice Hull Activated Carbon Electrode

김상길, 임정빈, 김경민, 이용욱, 김명수 , 강안수 ^†

명지대학교 화학공학과, 용인 449-728

Sang-Gil Kim, Jeong-Bin Yim, Kyung-Min Kim, Yong-Wook Lee, Myung-Soo Kim , and An-Soo Kang^†

Department of Chemical Engineering, Myongji University, Yongin 449-728, Korea

E-mail:

초록

전기이중층 커패시터의 분극성 전극물질로서 전도성 개량제의 첨가없이 상용 시제품 활성탄 및 왕겨 활성탄과 PVdF 단일 및 PVdF-PVP 복합결합제를 이용하여 전극을 제조한 후 물리화학적 특성 및 전기화학적 특성을 조사하였다. 왕겨 활성탄은 PVdF-PVP 복합결합제를 사용할 경우 PVP의 개공제 역할 때문에 중간세공이 발달된 이상적인 전극을 제조할 수 있었고 도전성 개량제를 첨가하지 않고도 에너지밀도 7.9Wh/kg, 비정전용량 33.5 F/g, ESR 0.7 Ω 및 자기방전율이 우수한 특성을 갖는 커패시터를 제조할 수 있었으며 기존의 상업화된 YP-17, BP-20 활성탄 전극에 비교하여 우수한 전극특성을 나타내었다.

High surface area and high pore volume activated carbon was prepared by KOH activation of rice hull. The elec-trodes were fabricated by compounding the commercial and rice hull activated carbons with PVdF and PVdF-PVP mixed bind-ers without addition of conductivity improver. The electrodes fabricated with rice hull activated carbon and PVdF-PVP mixed binders showed the best performance because the PVP played as a pore-forming agent. The electrode exhibited excellent elec-trochemical characteristics having 7.9 W · h/kg of energy density, 33.5 F/g of specific capacitance, 0.7 Ω of ESR and good effi-ciency of self discharge compared with that fabricated with commercial activated carbons.

Keywords:Electric Double Layer Capacitor;Rice Hull Activated Carbon Electrode;PVdF and PVdF-PVP Mixing Binder;Energy Density

[References]

Conway BE, "Electrochemical Supercapacitor," Kluwer Academic, N.Y. (1999)
Nishino A, Naoi K, "Technologies & Materials for EDLC, CMC," Japan (1998)
Sarjeant WJ, Zirnheld J, MacDougall FW, IEEE Trans. Plasma Sci., 26, 1368 (1998)
Kibi Y, Sato T, Kurata M, Tabuchi J, Ochi A, J. Power Sources, 60, 219 (1996)
Tanahashi I, Yoshida A, Nishino A, Denki Kagaku, 56, 892 (1988)
Liu KC, Anderson MA, J. Electrochem. Soc., 143(1), 124 (1996)
Maeda T, 22th Carbon Material Society Essential Book "Properties of Electric Double Layer Capacitor with Activated Carbon Fiber Electrodes," 234 (1995)
Shi H, Electrochim. Acta, 41(10), 1633 (1996)
Mayer ST, Pekala RW, Kaschmitter JL, J. Electrochem. Soc., 140(2), 446 (1993)
Hiratsuka K, Sanada Y, Morimoto T, Kurihara K, Denki Kagaku, 59, 607 (1991)
Yoon S, Lee JW, Hyeon T, Oh SM, J. Electrochem. Soc., 147(7), 2507 (2000)
Kim MS, Hong JC, HWAHAK KONGHAK, 36(6), 913 (1998)
Morimoto T, Hiratsuka K, Sanada Y, Kurihara K, J. Power Sources, 60, 239 (1996)
Hur JW, Kim SG, Kim KM, Lee YW, Kang AS, Electrochemical Society, Fall Meeting (1999)
Yoo SH, Jho JY, Won JG, Park HC, Kang YS, Kim UY, Proceedings of the World Polymer Congress, Gold Coast, Australia (1998)
Shin MY, Master's Thesis, POHANG Engineering College, POHANG (1996)
Gu HB, Electrochim. Acta, 45(8), 1533 (2000)
Ricketts BW, Ton-That C, J. Power Sources, 89(1), 64 (2000)
Ingram MD, Pappin AJ, Delalande F, Poupard D, Terzulli G, Electrochim. Acta, 43(10-11), 1601 (1998)

[Referenced By]

[Related Articles]

[1] Conway BE, "Electrochemical Supercapacitor," Kluwer Academic, N.Y. (1999)

[2] Nishino A, Naoi K, "Technologies & Materials for EDLC, CMC," Japan (1998)

[3] Sarjeant WJ, Zirnheld J, MacDougall FW, IEEE Trans. Plasma Sci., 26, 1368 (1998)

[4] Kibi Y, Sato T, Kurata M, Tabuchi J, Ochi A, J. Power Sources, 60, 219 (1996)

[5] Tanahashi I, Yoshida A, Nishino A, Denki Kagaku, 56, 892 (1988)

[6] Liu KC, Anderson MA, J. Electrochem. Soc., 143(1), 124 (1996)

[7] Maeda T, 22th Carbon Material Society Essential Book "Properties of Electric Double Layer Capacitor with Activated Carbon Fiber Electrodes," 234 (1995)

[8] Shi H, Electrochim. Acta, 41(10), 1633 (1996)

[9] Mayer ST, Pekala RW, Kaschmitter JL, J. Electrochem. Soc., 140(2), 446 (1993)

[10] Hiratsuka K, Sanada Y, Morimoto T, Kurihara K, Denki Kagaku, 59, 607 (1991)

[11] Yoon S, Lee JW, Hyeon T, Oh SM, J. Electrochem. Soc., 147(7), 2507 (2000)

[12] Kim MS, Hong JC, HWAHAK KONGHAK, 36(6), 913 (1998)

[13] Morimoto T, Hiratsuka K, Sanada Y, Kurihara K, J. Power Sources, 60, 239 (1996)

[14] Hur JW, Kim SG, Kim KM, Lee YW, Kang AS, Electrochemical Society, Fall Meeting (1999)

[15] Yoo SH, Jho JY, Won JG, Park HC, Kang YS, Kim UY, Proceedings of the World Polymer Congress, Gold Coast, Australia (1998)

[16] Shin MY, Master's Thesis, POHANG Engineering College, POHANG (1996)

[17] Gu HB, Electrochim. Acta, 45(8), 1533 (2000)

[18] Ricketts BW, Ton-That C, J. Power Sources, 89(1), 64 (2000)

[19] Ingram MD, Pappin AJ, Delalande F, Poupard D, Terzulli G, Electrochim. Acta, 43(10-11), 1601 (1998)