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Anion exchange membranes consisting of poly-vinylpyridine- and poly-vinylbenzylchloride- for Cr/Fe-redox batteries

 
: Reiner, A.; Ledjeff, K.

5th International Symposium on Synthetic Membranes in Science and Industry '86. Proceedings : Poster Nr. 32
1986
International Symposium on Synthetic Membranes in Science and Industry <5, 1986, Tübingen>
English
Conference Paper
Fraunhofer ISE ()

Abstract
For application in Cr/Fe redox batteries a fouling-resistant anion exchange membrane was developed by quaternizing a 4-vinylpyridine-co-styrene copolymer with poly (vinylbenzyl chloride). One reaction generates fixed cations at the branching points of the network. Membranes with a Cl-minus permselectivity equal or bigger than 70% (0.5N/1.0 N KCI) and a specific area resistance equal or smaller than 1 Omega-qcm in Fe Cl2,/FeCl3/HCI electrolytes were synthesized. The low resistance is stable for at least 10 high 3 hours.

: http://publica.fraunhofer.de/documents/PX-4003.html