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Factors affecting the open-circuit voltage and electrode kinetics of some iron/titanium/redox flow cellsThe effect of acid concentration on the performance of the iron-titanium redox flow cell was studied. When the acidity was increased, open-circuit voltages decreased on the titanium side but load voltages increased due to decreased polarization. The best load voltage occurs when there is high acidity on the titanium side coupled with low acidity on the iron side, but such cells show voltage losses with repeated cycling because of the diffusion of acid through the membrane. No membrane tested has been found capable of maintaining the differences in acidity. Chelating agents show some promise in reducing polarization at the Ti electrode and thus improving energy efficiency.
Document ID
19790027811
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Reid, M. A.
(NASA Lewis Research Center Cleveland, OH, United States)
Gahn, R. F.
(NASA Lewis Research Center Cleveland, Ohio, United States)
Date Acquired
August 9, 2013
Publication Date
January 1, 1977
Subject Category
Energy Production And Conversion
Meeting Information
Meeting: Symposium on Electrode Materials and Processes for Energy Conversion and Storage
Location: Philadelphia, PA
Start Date: May 9, 1977
End Date: May 12, 1977
Accession Number
79A11824
Funding Number(s)
CONTRACT_GRANT: E(49-28)-1002
Distribution Limits
Public
Copyright
Other

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