Journal
JOURNAL OF POWER SOURCES
Volume 338, Issue -, Pages 17-25Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2016.11.031
Keywords
Vanadium flow battery; Electrolyte; Reflow; Capacity decay; Cycle life; Rebalance
Funding
- Natural Science Foundation of China [61308119]
- Natural Science Foundation of Guangdong province [2015A030313794]
- science and technology research program of Shenzhen [JCYJ20140509172959960, JCYJ20150331151358142]
Ask authors/readers for more resources
Electrolyte imbalance is a major issue with Vanadium flow batteries (VFBs) as it has a significant impact on electrolyte utilization and cycle life over extended charge-discharge cycling. This work seeks to reduce capacity decay and prolong cycle life of VFBs by adopting a novel electrolyte-reflow method. Different current density and various start-up time of the method are investigated in the charge-discharge tests. The results show that the capacity decay rate is reduced markedly and the cycle life is prolonged substantially by this method. In addition, the coulomb efficiency, voltage efficiency and energy efficiency remain stable during the whole cycle life test, which indicates this method has little impact on the long lifetime performance of the VFBs. The method is low-cost, simple, effective, and can be applied in industrial VFB productions. (C) 2016 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available