Chemistry
Communication—sulfonated poly (ether ether ketone) as cation exchange membrane for alkaline redox flow batteries
Document Type
Article
Abstract
A sulfonated poly (ether ether ketone) (sPEEK) was tested as the separator in a full alkaline flow battery with 2,6-dihydroxyanthraquinone-ferro/ferricyanide, DHAQ-FeCy, redox couples. Cell performance was compared to that of an identical cell utilizing a perfluorosulfonic acid (PFSA) membrane. Replacement of the PFSA membrane with sPEEK resulted in a 10% power density increase, a 40% decrease in capacity loss per day and an 85-fold decrease in ferricyanide permeation. Though long-term stability of sPEEK in alkaline media requires improvement, these results highlight the potential to produce non-fluorinated membranes with better performance in organic redox flow batteries than the commercially available PFSAs.
Publication Title
Journal of the Electrochemical Society
Publication Date
1-2018
Volume
165
Issue
5
First Page
A1137
Last Page
A1139
ISSN
0013-4651
DOI
10.1149/2.1291805jes
Repository Citation
De Porcellinis, D.; Mecheri, B.; D’Epifanio, A.; Licoccia, S.; Granados-Focil, S.; and Aziz, M. J., "Communication—sulfonated poly (ether ether ketone) as cation exchange membrane for alkaline redox flow batteries" (2018). Chemistry. 78.
https://commons.clarku.edu/chemistry/78