Doosan Fuel Cell America, Inc.

Kenney, Frank E.

Frank E Kenney, Iii

Richard D Breault

Ned Emidio Cipollini

Sridhar V Kanuri

Kishore Kumar Tenneti

A stack () of fuel cells () is manufactured with barriers () to prevent migration of a liquid electrolyte (such as phosphoric acid) out of the cells (). The barrier () is secured within a step () formed within a land region () of a separator plate assembly () and extends from an edge () of the separator plate assembly () all or a portion of a distance between the edge () and a flow channel () defined within the separator plate assembly (). The barrier () also extends away from the edge () a distance of between 0.051 and about 2.0 millimeters (about 2 and about 80 mils. The barrier () includes a hydrophobic, polymeric film (), a pressure sensitive adhesive () as an assembly aid, and a fluoroelastomer bonding agent ().

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Tolland, CT, United States of America

Frank E Kenney, Iii