Patent Number: 6,165,634

Title: Fuel cell with improved sealing between individual membrane assemblies and plate assemblies

Abstract: A fuel cell stack includes a plurality of fuel cells, each of which includes a membrane electrode assembly and a water transport plate, or a fluid flow plate fabricated from graphite. This plate and optionally a separator plate are held in assembled relationship with one another and with the membrane electrode assemblies by a fluoroelastomeric adhesive/sealant that is also coated on the external edges of these components to provide a water-tight seal to better contain the coolant fluid in the form of water provided in the fuel cell stack.

Inventors: Krasij; Myron (Avon, CT), Moskey; Edward A. (Portland, CT)

Assignee: International Fuel Cells LLC

International Classification: H01M 2/08 (20060101); H01M 8/02 (20060101); H01M 002/08 ()

Expiration Date: 12/26/2017