DOI QR코드

DOI QR Code

Electrochemical Oxidation of Carbon Felt for Redox Flow Battery

Redox flow battery용 carbon felt 전극의 전기화학적 산화

  • Jung, Young-Guan (Dep. Mechanical Engineering, Kumoh National Institute of Technology) ;
  • Hwang, Gab-Jin (Graduate School, Dep. Green Energy, Hoseo University) ;
  • Kim, Jae-Chul (Graduate School, Dep. Green Energy, Hoseo University) ;
  • Ryu, Cheol-Hwi (Graduate School, Dep. Green Energy, Hoseo University)
  • 정영관 (금오공과대학교 기계공학과) ;
  • 황갑진 (호서대학교 일반대학원 그린에너지공학과) ;
  • 김재철 (호서대학교 일반대학원 그린에너지공학과) ;
  • 유철휘 (호서대학교 일반대학원 그린에너지공학과)
  • Received : 2011.09.28
  • Accepted : 2011.10.21
  • Published : 2011.10.30

Abstract

All vanadium redox-flow battery (VRFB) has been studied actively as one of the most promising electrochemical energy storage systems for a wide rage of applications such as electric vehicles, photovoltaic arrays, and excess power generated by electric power plants at night time. In this study, carbon felt electrodes were treated by electrochemical oxidation with KOH, and the cyclic voltammetry were studied in order to investigate redox reactivity of vanadium ion species with carbon felt electrodes. Besides the effect of electrochemical oxidation on the surface chemistry of carbon felt electrodes were investigated using the X-ray photoelectron spectroscopy (XPS). After electrochemical oxidation, XPS analysis of PAN based GF20-3 carbon felt electrode revealed on increase in the overall surface oxygen content of the carbon felts after electrochemical oxidation. Redox reaction characteristics using cyclic voltammetry (CV) were ascertained that the electrochemical treated electrode were more reversible than the untreated electrode.

References

  1. 유철휘, "신재생에너지와 연계 가능한 대용량 전력 저장용 레독스 플로전지의 기술동향", 정보통신산업진흥원, Vol. 1463, 2010, pp. 29-38.
  2. 최호상, 황갑진, 김재철, 유철휘, "전바나듐계 레독스플로우전지용 집전체에 대한 연구", 한국수소 및 신에너지학회논문집, Vol. 22, 2011, pp 240-248.
  3. K. L. Huang, X. G. Li, S. Q. Liu, N. Tan and L. Q. Chen, "Research progress of vanadium redox flow battery for energy storage system in China", Renewable Energy, Vol. 33, 2008, pp. 186-192. https://doi.org/10.1016/j.renene.2007.05.025
  4. S. Zhong, C. Padeste, M. Kazacos, and M. S. Kazacos,, "Comparison of the Physical, Chemical Properties of Rayon and Polyacrylonitrile Based Graphite Felt Electrodes", J. Power Sources, Vol. 45, 1993, pp. 29-41. https://doi.org/10.1016/0378-7753(93)80006-B
  5. W.H. Wang and X.D. Wang, "Investigation of Ir-modified carbon felt as the positive electrode of an all-vanadium redox flow battery", Electrochimica Acta, Vol. 52, 2007, pp. 6755-6762. https://doi.org/10.1016/j.electacta.2007.04.121
  6. A. Bismarck, M. E. Kumru, B. Song, J. Springer, E. Moos, and J. Karger-Kocsis, "Study on Surface and Mechanical Fiber Characteristics and Their Effect on the Adhesion Properties to a Polycarbonates Matrix Tuned by Anodic Carbon Fiber Oxidation", Composites Part A, Vol. 30, 1999, 1351-1366. https://doi.org/10.1016/S1359-835X(99)00048-2
  7. K. Kinoshita, and J. A. S. Bett, "Potentiodynamic Analysis of Surface Oxides on Carbon Black", Carbon, Vol. 11, 1973, pp. 403-411. https://doi.org/10.1016/0008-6223(73)90080-8
  8. Y. Lu, L. Weishan, S. Fengqiang, Z. Lingzhi, X. Lidan, "Highly hydroxylated carbon fibres as electrode materials of all-vanadium redox flow battery", Carbon, Vol. 48, 2010, pp. 3079-3090. https://doi.org/10.1016/j.carbon.2010.04.044
  9. A. Fukunaga, "Anodic Surface Oxidation Mechanisms of PAN-Based and Pitch-Based Carbon Fibres", Journal of Material Science, Vol. 34, 1999, pp. 2851-2854. https://doi.org/10.1023/A:1004679200908
  10. S. Kashimura, M. Ishifune, H. Kakegawa, Y. Murai, H. Iwase, and Y. Tamai, "Surface Oxidation and Activation of Carbon Fiber Using Radical $NO_{3}_^{*}$ * Generated by Anodic Oxidation of $NO_{3}_^{-}$", Electrochemistry, Vol. 67, 1999, pp. 1117-1128.
  11. K. Horita, Y. Nishibori, and T. Ohshima, "Surface Modification of Carbon Blacks by Anodic Oxidation and Electrochemical Characterization", Carbon, Vol. 34, 1996, pp. 217-222. https://doi.org/10.1016/0008-6223(96)00167-4