Copper nanoparticle-deposited graphite felt electrodes for all vanadium redox flow batteries

L. Wei, T.S. Zhao, L. Zeng, X.L. Zhou and Y.K. Zeng

Applied Energy, 2016, vol. 180, issue C, 386-391

Abstract: A copper nanoparticle deposited graphite felt electrode for all vanadium redox flow batteries (VRFBs) is developed and tested. It is found that the copper catalyst enables a significant improvement in the electrochemical kinetics of the V3+/V2+ redox reaction. The battery’s utilization of the electrolyte and energy efficiency are found to be as high as 83.7% and 80.1%, at a current density of 300mAcm−2, which are 53.1% and 17.8% higher than those of the battery without the catalyst. Moreover, the present battery shows a good stability during the cycle test. The results suggest that the inexpensive copper nanoparticle catalyst without tedious preparation process offers a great promise for VRFB application.

Keywords: Vanadium redox flow battery; Electrode; Catalyst; Copper nanoparticle; Energy efficiency (search for similar items in EconPapers)
Date: 2016
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Citations: View citations in EconPapers (9)

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DOI: 10.1016/j.apenergy.2016.07.134

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