期刊
JOURNAL OF POWER SOURCES
卷 338, 期 -, 页码 17-25出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2016.11.031
关键词
Vanadium flow battery; Electrolyte; Reflow; Capacity decay; Cycle life; Rebalance
资金
- Natural Science Foundation of China [61308119]
- Natural Science Foundation of Guangdong province [2015A030313794]
- science and technology research program of Shenzhen [JCYJ20140509172959960, JCYJ20150331151358142]
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.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据