Advanced Approaches to Greatly Reduce Hydrogen Gas Crossover Losses in PEM Electrolyzers Operating at High Pressures and Low Current Densities

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$99,814.00
Award Year:
2008
Program:
SBIR
Phase:
Phase I
Contract:
NNX08CB62P
Agency Tracking Number:
074626
Solicitation Year:
2007
Solicitation Topic Code:
X8.01
Solicitation Number:
n/a
Small Business Information
ElectroChem, Inc.
400 West Cummings Park, Woburn, MA, 01801-6519
Hubzone Owned:
N
Socially and Economically Disadvantaged:
Y
Woman Owned:
Y
Duns:
161844204
Principal Investigator:
Michael Pien
Principal Investigator
(781) 938-5300
mpien@fuelcell.com
Business Contact:
Jeremy Bernier
Business Manager
(781) 938-5300
jbernier@fuelcell.com
Research Institution:
n/a
Abstract
ElectroChem proposes technology advances in its unique PEM IFF water electrolyzer design to meet the NASA requirement for an electrolyzer that will operate very efficiently both at low current densities and at high pressures. This SBIR effort will develop technical solutions to the draw-back of high pressure operation, namely hydrogen gas crossover losses, that is, an increased diffusion of hydrogen across the membrane which effectively decreases the efficiency. Two approaches to reducing gas permeation through the membrane at high pressure will be investigated: 1) The use of palladium thin films embedded in the membrane; and 2) The use of Nafion proton conductive polymer-clay nanocomposite blends. Two different bonding approaches and membrane configurations will be used for the first approach. Determining the best composition is the key for the second approach. Promising candidates will be determined by two tests: 1) hydrogen permeability tests; and 2) proton conduction measurements to assure that the effects of reducing hydrogen permeability will not affect electrochemical proton conduction. Finally, the most promising candidates will undergo their final Ph I proof of concept tests in a PEM IFF electrochemical cell. Phase I will lead to the Ph II development of a complete PEM IFF Electrolyzer System and delivery of a demonstration unit to NASA.

* information listed above is at the time of submission.

Agency Micro-sites

US Flag An Official Website of the United States Government