Issue 13, 2012
From the journal:

RSC Advances

Hydrocarbon blend membranes with suppressed chemical crossover for redox flow batteries†

Xinsheng Zhao,a   Yongzhu Fu,a   Wei Lia  and  Arumugam Manthiram*a  

* Corresponding authors

a Materials Science and Engineering Program and Texas Materials Institute, University of Texas at Austin, Austin, TX 78712, United States
E-mail: rmanth@mail.utexas.edu (A. Manthiram)
Fax: +1-512-471-7681
Tel: +1-512-471-1791

Abstract

A hydrocarbon blend membrane consisting of an acidic polymer (sulfonated poly (ether ether ketone), SPEEK) and a basic polymer (polysulfone-2-amide-benzimidazole, PSf-ABIm) has been prepared and assessed in vanadium redox flow batteries (VRBs). The vanadium ion (VO)2+ permeability through the blend membrane is about 50 times lower than that of Nafion 117 and 4 times lower than that of the plain SPEEK. The Coulombic efficiency and energy efficiency of the single cell with the blend membrane are higher than those with Nafion and plain SPEEK membranes. The blend membrane also shows better chemical stability than plain SPEEK. The results demonstrate that blend membranes of this type are promising for VRBs.

Graphical abstract: Hydrocarbon blend membranes with suppressed chemical crossover for redox flow batteries

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Article information

DOI
https://doi.org/10.1039/C2RA20668D
Article type
Communication
Submitted
12 Apr 2012
Accepted
13 Apr 2012
First published
13 Apr 2012

RSC Adv., 2012,2, 5554-5556

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Hydrocarbon blend membranes with suppressed chemical crossover for redox flow batteries

X. Zhao, Y. Fu, W. Li and A. Manthiram, RSC Adv., 2012, 2, 5554 DOI: 10.1039/C2RA20668D

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