Extremely Lightweight Hydrogen Fuel Cells

Award Information
Agency:
Department of Defense
Branch
Army
Amount:
$593,777.00
Award Year:
1996
Program:
SBIR
Phase:
Phase II
Contract:
n/a
Award Id:
28715
Agency Tracking Number:
28715
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
268 Summer Street 4th Floor, Boston, MA, 02210
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
David P. Bloomfield
(617) 542-6352
Business Contact:
() -
Research Institute:
n/a
Abstract
The fuel cell power supplies of today are two times too heavy compared to man-portable power supplies. A major portion of the weight is in the fuel cell stack, a stack of carbon electrodes with metal bipolar plate separators that are sandwiched between two end plates and held in place by tie rods. We continue to investigate lighter weight materials to use in our conventional fuel cell stack. However, in this effort we propose to investigate an innovative design, the strip cell stack, that completely eliminates the bipolar plates, end plates and tie rods. The strip stack is 4.6 times lighter than a bipolar fuel cell stack. In a conventional Proton Exchange Membrane (PEM) fuel cell stack, electrons and protons are conducted perpendicular to the electrode plane. In the strip cell design, ionic conduction is perpendicular to the plane of the electrodes while electron flow is in the plane of the electrodes. Phase I will demonstrate the feasibility of the design with a 4 cell "substack." In Phase II we will build a coiled 300 watt cell "stack." The coiled strip cell stack is formed from a sheet of planar strip cells rolled together and placed inside a thin lightweight plastic tube. The 300 watt strip cell stack should fit in a tube which is about 8.9 cm. in diameter and 20.3 cm. long. The total weight should be slightly over 1 Kg.

* information listed above is at the time of submission.

Agency Micro-sites


SBA logo

Department of Agriculture logo

Department of Commerce logo

Department of Defense logo

Department of Education logo

Department of Energy logo

Department of Health and Human Services logo

Department of Homeland Security logo

Department of Transportation logo

Enviromental Protection Agency logo

National Aeronautics and Space Administration logo

National Science Foundation logo
US Flag An Official Website of the United States Government