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Bipolar plate/diffuser for a proton exchange membrane fuel cell

United States Patent

6,037,073
March 14, 2000
View the Complete Patent at the US Patent & Trademark Office
Oak Ridge National Laboratory - Visit the Partnerships Directorate Website
A combination bipolar plate/diffuser fuel cell component includes an electrically conducting solid material having: a porous region having a porous surface; and a hermetic region, the hermetic region defining at least a portion of at least one coolant channel, the porous region defining at least a portion of at least one reactant channel, the porous region defining a flow field medium for diffusing the reactant to the porous surface.
Besmann; Theodore M. (Oak Ridge, TN), Burchell; Timothy D. (Oak Ridge, TN)
Lockheed Martin Energy Research Corporation (Oak Ridge, TN)
08/ 732,513
October 15, 1996
The United States Government has rights in this invention pursuant to contract no. DE-AC05-84OR21400 between the United States Department of Energy and Lockheed Martin Energy Systems, Inc., and contract no. DE-AC05-96OR22464 between the United States Department of Energy and Lockheed Martin Energy Research Corporation.