Elucidating the performance-limiting electrode for all-vanadium redox flow batteries through in-depth physical and electrochemical analyses

다국어 초록 (Multilingual Abstract)

For the development of all-vanadium redoxflow batteries (VRFB) with high power ratings, it is verycrucial to identify the reasons that limit the kinetics of vanadium couples at the electrodes. This work,using two different electrode materials (a polyacrylonitrile-based carbon felt and a rayon-based graphitefelt), elucidates the redox reactions at the anode as performance-limiting ones through varioussophisticated physical and electrochemical analyses as well as the VRFB testings with/withouthomogeneous catalyst in the electrolytes and different electrode combinations. The electrode materialwith the properties of higher hydrophilicity arising from abundant surface oxygen functionalities andelectrical conductivity exhibit higher VRFB performance, particularly due to improved reaction kineticsat the anode. Moreover, the incorporation of catalyst, especially for the V3+/V2+ couple, results in asignificant improvement of VRFB performance by accelerating the kinetics of V3+/V2+ redox reactions aswell as mitigating the harmful effects of hydrogen evolution reactions and temperature-related effects.

참고문헌 (Reference)

1 D. Larcher, 7 : 19-, 2015

2 C. F. Chen, 121 : 21206-, 2017

3 J. Liu, 23 : 929-, 2013

4 Q. Huang, 80 : 312-, 2015

5 M. Ulaganathan, 1500309-, 2015

6 K. J. Kim, 3 : 16913-, 2015

7 M. H. Chakrabarti, 253 : 150-, 2014

8 A. Bourke, 163 : A5097-, 2016

9 R. Schweiss, 136 : A2089-, 2016

10 H. Al-Fetlawi, 55 : 3192-, 2010

11 F. Mohammadi, 52 : 61-, 1994

12 Y. Shao, 5 : 7288-, 2015

13 M. Park, 10 : 2096-, 2015

14 B. Li, 14 : 158-, 2014

15 S. Park, 3 : 12276-, 2015

16 M. Park, 13 : 4833-, 2013

17 B. Luo, 4 : 1700104-, 2017

18 L. Wei, 190 : 1112-, 2017

19 B. Li, 13 : 1330-, 2013

20 H. Fink, 120 : 15893-, 2016

21 N. Pour, 119 : 5311-, 2015

22 X. W. Wu, 41 : 1183-, 2011

23 S. Mehboob, 5 : 17388-, 2017

24 J. Shen, 151 : 297-, 2015

25 L. Wei, 180 : 386-, 2016

26 S. Chand, 35 : 1303-, 2000

27 S. Zhong, 45 : 29-, 1993

28 S. Abbas, 128 : 31-, 2018

29 Z. Zhang, 218 : 15-, 2016

30 M. Melanitis, 31 : 851-, 1996

31 L. Cao, 163 : A1164-, 2016

32 A. M. Pezeshki, 294 : 333-, 2015

33 D. Blasi, 147 : 74-, 2015

34 A. Sun, 37 : 1253-, 1992

35 J. -Z. Chen, 274 : 894-, 2015

36 X. Wu, 138 : 264-, 2014

37 W. Wang, 205 : 102-, 2016

38 L. Estevez, 9 : 1455-, 2016

39 G. Ali, 7 : 40910-, 2017

40 A. Ganguly, 115 : 17009-, 2011

41 S. Bernard, 48 : 2506-, 2010

42 C. Ehlert, 16 : 14083-, 2014

43 H. –K. Jeong, 82 : 67004-, 2008

44 V. Lee, 21 : 3905-, 2009

45 A.J. Bard, Electrochemical Methods: Fundamentals and Applications

46 Yustian Suharto, "The improved electrochemical performance of vanadium redox flow battery by decorating functionalized mesoporous carbon catalyst with three-dimensional interconnected network" 한국공업화학회 70 : 290-298, 2019

47 이민의, "Standalone macroporous graphitic nanowebs for vanadium redox flow batteries" 한국공업화학회 60 : 85-90, 2018