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Performance of advanced chromium electrodes for the NASA Redox Energy Storage SystemChromium electrodes were prepared for the NASA Redox Storage System with meet the performance requirements for solar-photovoltaic, wind-turbine and electric utility applications. Gold-lead catalyzed carbon felt electrodes up tp 930 sq cm were fabricated and tested in single cells and multicell stacks for hydrogen evolution, coulombic efficiency, catalyst stability and electrochemical activity. Factors which affect the overall performance of a particular electrode include the carbon felt lot, the cleaning treatment and the gold catalyzation method. Effects of the chromium solution chemistry and impurities on charge/discharge performance are also presented.
Document ID
19820004701
Document Type
Technical Memorandum (TM)
Authors
Gahn, R. F. (NASA Lewis Research Center Cleveland, OH, United States)
Charleston, J. (NASA Lewis Research Center Cleveland, OH, United States)
Ling, J. S. (NASA Lewis Research Center Cleveland, OH, United States)
Reid, M. A. (NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
September 4, 2013
Publication Date
November 1, 1981
Subject Category
ENERGY PRODUCTION AND CONVERSION
Report/Patent Number
DOE/NASA/12726-15
E-1025
NASA-TM-82724
Funding Number(s)
CONTRACT_GRANT: DE-AI04-80AL-12726
PROJECT: RTOP 776-72-41
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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NameType 19820004701.pdf STI