Transactions of the Korean hydrogen and new energy society (한국수소및신에너지학회논문집)

The Korean Hydrogen and New Energy Society (한국수소및신에너지학회)
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Surface Treatment with Alkali Solution of Carbon Felt for Vanadium Redox Flow Battery

바나듐레독스흐름전지용 카본펠트전극의 알칼리용액을 이용한 표면개질

  • KIM, SUNHOE (Department of New Energy & Resource Engineering, Sangji Univ.) ;
  • LEE, KEON JOO (Department of Environmental Engineering, Sangji Univ.)
  • 김선회 (상지대학교 신에너지.자원공학과) ;
  • 이건주 (상지대학교 환경공학과)
  • Received : 2016.08.03
  • Accepted : 2016.08.30
  • Published : 2016.08.30
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Abstract

The carbon felt used as the electrode of vanadium redox flow battery (VRFB) requires imprived electrochemical activity for better battery performance and efficiencies. Many efforts have been tried to improve electrochemical activity of the carbon felt as electrodes. In this study the alkali solution, KOH, is applied on surface treatment of the carbon felt electrode. The carbon felts were treated with KOH under room temperature and $80^{\circ}C$. The isopropyl alcohol was applied to improve wettability of the carbon felt during KOH treatment. The KOH treated carbon felt was analyzed by using the X-ray photoelectron spectroscopy (XPS). The XPS analysis of carbon felt electrode revealed on increase in the overall surface oxygen content of the carbon felts after KOH treatment. Also, cyclic voltametry tests showed electrochemical characteristics enhancement of the carbon felt.

Keywords

References

  1. G-J. Hwang, A-S. Kang, H. Ohya, "Review of the redox-flow secondary battery", Chemical Industry and Technology, Vol. 16, No. 5, 1998, p. 455.
  2. H-S. Choi, J-C. Kim, C-H. Ryu, G-J. Hwang, "Research review of the all vanadium redox-flow battery for large scale power storage", Membrane Journal, Vol. 21, No. 2, 2011, p. 107.
  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. H. Q. Zhu, Y. M. Zhang, L. Yue, W. S. Li, G. L. Lie, D. Shu and H. Y. Chen, "Graphite carbon nanotube composite electrodes for all vanadium redox flow battery", Journal of Power Sources, Vol. 184, 2008, pp. 637-640. https://doi.org/10.1016/j.jpowsour.2008.04.016
  5. K. Lee, S. Kim, "Effect of Electrolyte Flow Rates on the Performance of Vanadium Redox Flow Battery", Trans. of the Korean Hydrogen and New Energy Society(2015. 8), Vol. 26, No. 4, pp. 324-330. https://doi.org/10.7316/KHNES.2015.26.4.324
  6. 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
  7. 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
  8. K. J. Kim, M. S. Park, J. H. Kim, U. Hwang, N. J. Lee, G. J. Jeong, and Y. J. Kim, "Novel catalytic effects of Mn3O4 for all vanadium redox flow batteries", Chemical Comm., Vol. 48, 2012, p. 5455. https://doi.org/10.1039/c2cc31433a
  9. 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
  10. 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
  11. 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 NO3-", Electrochemistry, Vol. 67, 1999, pp. 1117-1128.
  12. C. Chu, S. Jeong, J. Jeong, S-K. Chun, J. Lee, Y. Kwon, "A Study on The Effects of Three Different Carbon Catalysts on Performance of Vanadium Redox Flow Battery", Trans. of the Korean Hydrogen and New Energy Soc., Vol. 26, 2015, No. 2, pp. 170-178. https://doi.org/10.7316/KHNES.2015.26.2.170