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Space Water Electrolysis: Space Station Through Advance MissionsStatic Feed Electrolyzer (SFE) technology can satisfy the need for oxygen (O2) and Hydrogen (H2) in the Space Station Freedom and future advanced missions. The efficiency with which the SFE technology can be used to generate O2 and H2 is one of its major advantages. In fact, the SFE is baselined for the Oxygen Generation Assembly within the Space Station Freedom's Environmental Control and Life Support System (ECLSS). In the conventional SFE process an alkaline electrolyte is contained within the matrix and is sandwiched between two porous electrodes. The electrodes and matrix make up a unitized cell core. The electrolyte provides the necessary path for the transport of water and ions between the electrodes, and forms a barrier to the diffusion of O2 and H2. A hydrophobic, microporous membrane permits water vapor to diffuse from the feed water to the cell core. This membrane separates the liquid feed water from the product H2, and, therefore, avoids direct contact of the electrodes by the feed water. The feed water is also circulated through an external heat exchanger to control the temperature of the cell.
Document ID
Document Type
Conference Paper
Ronald J Davenport
(Life Systems (United States) Chesterfield, Missouri, United States)
Franz H Schubert
(Life Systems (United States) Chesterfield, Missouri, United States)
David J Grigger
(Life Systems (United States) Chesterfield, Missouri, United States)
Date Acquired
September 6, 2013
Publication Date
September 1, 1991
Publication Information
Publication: Proceedings of the Third Space Electrochemical Research and Technology Conference; Journal of Power Sources
Publisher: Elsevier
Volume: 36
Issue: 3
Issue Publication Date: December 1, 1991
ISSN: 0378-7753
e-ISSN: 1873-2755
Subject Category
Energy Production And Conversion
Meeting Information
Meeting: 3rd Space Electrochemical Research and Technology (SERT) Conference
Location: Cleveland, OH
Country: US
Start Date: April 9, 1991
End Date: April 10, 1991
Sponsors: Lewis Research Center
Accession Number
Distribution Limits
Work of the US Gov. Public Use Permitted.
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