Polymer supported zinc-iodine rechargeable cells

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" Polymer supported zinc-iodine rechargeable cells "
W. Pan I. Cabasso

Document Type	:	Latin Dissertation
Language of Document	:	English
Record Number	:	1112469
Doc. No	:	TLpq303962011
Main Entry	:	I. Cabasso
	:	W. Pan
Title & Author	:	Polymer supported zinc-iodine rechargeable cells\ W. PanI. Cabasso
College	:	State University of New York College of Environmental Science and Forestry
Date	:	1991
student score	:	1991
Degree	:	M.S.
Page No	:	167
Abstract	:	Zinc-iodine rechargeable cells have been constructed in two configurations: hollow fiber and flat sheet module. These cells have been tested with poly(vinyl alcohol) (PVA) gel as a medium for the electrolytes (ZnI2/KCl 3 molal). The PVA can complex iodine, which is readily available to the cathode upon discharge. Zinc covered the anode on charging. The highly crosslinked PVA gel shaped the deposit into a smooth surface. This general characteristic of the zinc-iodine/poly(vinyl alcohol) rechargeable cell has been studied in the two configurations, using different varieties of electrodes and under different conditions. High current and voltage efficiency over 80% have been recorded for most of the cells loaded with 10 wt.% PVA. The highest efficiency for hollow fiber cell (92%) has been found with carbon fiber braided electrodes which have been inserted in the cathode chamber. Other parameters, such as cell diameter, length, and electrode distance, have been found to influence the theoretical energy density as well as performance. (Abstract shortened with permission of author.)
Subject	:	Applied sciences
	:	Chemical engineering
	:	Chemical engineering
	:	Energy