Zirfon is a porous composite separator material composed of a polysulfone matrix and ZrO2 which is present as a powder. The manufacturing is based on the film-casting technique. The separator is very stable in concentrated KOH solutions at elevated temperatures. Even with a high loading of ZrO2 it is possible to produce very flexible separators with attractive mechanical properties. The main challenge for this Zirfon material is to replace the asbestos diaphragms which are presently used in industrial alkaline water electrolysis. Different companies are already testing this separator. Excellent results have been obtained. Another field of interest is related to the use of such a separator in Ni-H2 batteries both for earth and space applications.
Evaluation of the Zirfon separator for use in alkaline water electrolysis and Ni-H2 batteries
Untersuchung des Zirfon-Separators hinsichtlich seiner Verwendung bei der alkalischen Wasserelektrolyse und in Ni-H2-Batterien
International Journal of Hydrogen Energy ; 23 , 5 ; 321-324
1998
4 Seiten, 3 Bilder, 1 Tabelle, 8 Quellen
Article (Journal)
English
ZIRFON: A new separator for Ni-H2 batteries and alkaline fuel cells
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