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Fuel cell subassemblies incorporating subgasketed thrifted membranes

United States Patent

8,637,205
January 28, 2014
View the Complete Patent at the US Patent & Trademark Office
A fuel cell roll good subassembly is described that includes a plurality of individual electrolyte membranes. One or more first subgaskets are attached to the individual electrolyte membranes. Each of the first subgaskets has at least one aperture and the first subgaskets are arranged so the center regions of the individual electrolyte membranes are exposed through the apertures of the first subgaskets. A second subgasket comprises a web having a plurality of apertures. The second subgasket web is attached to the one or more first subgaskets so the center regions of the individual electrolyte membranes are exposed through the apertures of the second subgasket web. The second subgasket web may have little or no adhesive on the subgasket surface facing the electrolyte membrane.
Iverson; Eric J. (Eau Claire, WI), Pierpont; Daniel M. (North St. Paul, MN), Yandrasits; Michael A. (Hastings, MN), Hamrock; Steven J. (Stillwater, MN), Obradovich; Stephan J. (Menomonie, WI), Peterson; Donald G. (Shoreview, MN)
3M Innovative Properties Company (St. Paul, MN)
12/ 972,959
20110151350
December 20, 2010
This Invention was made with U.S. Government support under Contract No. DE-FG36-07GO17006 awarded by the Department of Energy. The Government has certain rights in this invention.