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Evaluation of sodium-nickel chloride cells for space applicationsThe status of the European Space Agency (ESA) program on sodium nickel chloride batteries is outlined. Additionally, the results of initial tests of two prototype space cells are reported. After 2800 cycles typical of a low-earth orbit (LEO) application without failure, the recharge ratio remained at unity, the round trip energy efficiency remained high (87 percent), and the increase in internal cell resistance was modest. Initial tear-down analysis data show no degradation whatsoever of the beta-alumina electrolyte tubes. The low-rate capacity did, however drop by some 40 percent, which needs further investigation, but overall results are encouraging for future use of this couple in geosynchronous (GEO) and LEO spacecraft.
Document ID
19920017913
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Hendel, B.
(European Space Agency. European Space Research and Technology Center ESTEC, Noordwijk, Netherlands)
Dudley, G. J.
(European Space Agency. European Space Research and Technology Center ESTEC, Noordwijk, Netherlands)
Date Acquired
September 6, 2013
Publication Date
May 1, 1991
Publication Information
Publication: NASA. Marshall Space Flight Center, The 1990 NASA Aerospace Battery Workshop
Subject Category
Spacecraft Propulsion And Power
Accession Number
92N27156
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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