期刊
JOURNAL OF POWER SOURCES
卷 233, 期 -, 页码 202-208出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2013.01.088
关键词
Energy storage; Poly (ether sulfone); Porous membranes; Vanadium flow battery
资金
- National Basic Research Program of China (973 program) [2010CB227202]
- China Natural Science Foundation [21206158]
- Youth Innovation Promotion Association of CAS
Poly (ether sulfone) (PES) porous membranes with tunable morphology are prepared via phase inversion method and first investigated in vanadium flow battery (VFB) application. The morphology of PES membranes is adjusted via introducing hydrophilic poly (vinyl pyrrolidone) (PVP) in PES cast solutions. The effect of PVP (content, molecular weight) on the membranes morphology as well as their performance in VFB is studied in detail. The results show that: the addition of PVP in cast solutions could induce membranes with more porous structures and bigger pore size distribution. Therefore under VFB operating condition, the membranes show lower area resistance and higher ions permeability. As a result, the VFBs fabricated with the membranes show relatively higher voltage efficiency and lower coulombic efficiency. Thus the membranes with controlled performance in VFB can be realized via adjusting their morphology. This paper provides an effective way to optimize fabrication parameters of porous membranes for VFB application. (C) 2013 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