A Platinum-Hydrogen Reference Micro-Electrode for All Vanadium Redox Flow Battery

Authors

Zhi-bin LIN, College of Energy, Xiamen University, Xiamen 361005, Fujian, China;
Yan-qing DONG, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, China;
Ming-sen ZHENG, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, China;
Quan-feng DONG, College of Energy, Xiamen University, Xiamen 361005, Fujian, China;College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, China;Follow

Corresponding Author

Quan-feng DONG(qfdong@xmu.edu.cn)

Abstract

A platinum-hydrogen reference micro-electrode was made with electroplating Pd on the surface of Pt wire and then coating anion membrane material. This reference electrode was built-in the porous electrode of the all vanadium redox flow batteries (VRFB), and monitored the charging /discharging and self-discharging of the VRFB. The results indicated that the capacity fading of VRFB occurred due to the graduate reduction of V(IV) active species in the electrolyte and the accumulation of V(V) in the positive electrode, leading to nonequilibrium of active species between the positive and negative electrodes.

Graphical Abstract

Keywords

reference electrode, all vanadium redox flow batteries, application

DOI Link

https://doi.org/10.13208/j.electrochem.141209

Publication Date

2015-04-28

Online Available Date

2015-04-23

Revised Date

2015-01-19

Received Date

2014-12-09

Recommended Citation

Zhi-bin LIN, Yan-qing DONG, Ming-sen ZHENG, Quan-feng DONG. A Platinum-Hydrogen Reference Micro-Electrode for All Vanadium Redox Flow Battery[J]. Journal of Electrochemistry, 2015 , 21(2): 162-166.
DOI: 10.13208/j.electrochem.141209
Available at: https://jelectrochem.xmu.edu.cn/journal/vol21/iss2/9