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Cathode for a hall-heroult type electrolytic cell for producing aluminum

United States Patent

April 13, 2004
View the Complete Patent at the US Patent & Trademark Office
A method of producing aluminum from alumina in an electrolytic cell including using a cathode comprised of a base material having low electrical conductivity and wettable with molten aluminum to form a reaction layer having a high electrical conductivity on said base layer and a cathode bar extending from said reaction layer through said base material to conduct electrical current from said reaction layer.
Brown; Craig W. (The Dalles, OR)
Northwest Aluminum Technologies (Seattle, WA)
10/ 126,068
April 22, 2002
The government has rights in this invention pursuant to Contract No. DE-FC07-00ID13901 awarded by the Department of Energy.