Composite porous membranes with an ultrathin selective layer for vanadium flow batteries

Yun Li; Xianfeng Li; Jingyu Cao; Wanxing Xu; Huamin Zhang

doi:10.1039/c3cc49729a

Composite porous membranes with an ultrathin selective layer for vanadium flow batteries

Chem Commun (Camb). 2014 May 7;50(35):4596-9. doi: 10.1039/c3cc49729a.

Authors

Yun Li¹, Xianfeng Li, Jingyu Cao, Wanxing Xu, Huamin Zhang

Affiliation

¹ Division of Energy Storage, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Zhongshan Road 457, Dalian 116023, China. zhanghm@dicp.ac.cn lixianfeng@dicp.ac.cn.

PMID: 24668121
DOI: 10.1039/c3cc49729a

Abstract

An ultrathin Nafion film was introduced onto the poly(ether sulfone) (PES)-sulfonated poly(ether ether ketone) (SPEEK) porous membranes for vanadium flow battery (VFB) application. The composite membranes showed very high ion selectivity, good stability and excellent performance (energy efficiency 86.5% at 80 mA cm(-2)) in VFB.