The design variable program of NASA is a systematic approach to evaluate the performance of 12 Ah aerospace Nickel-Cadmium cells of 9 important cell designs. These cells were life cycled in a Low-Earth Orbit (LEO) regime for 3 to 4 years. Representative cells taken from the design variable groups after different cycling periods have been examined. The results show that: 1) positive swelling and carbonate content in the electrolyte increases as a function of the number of cycles, 2) electrolyte distribution follows the order NEG greater than POS greater than SEP, 3) control and no PQ groups outperformed the rest of the groups and 4) the polypropylene group shows very heavy cadmium migration and poor performance.
Performance of 12 Ah aerospace nickel-cadmium cells of design variable groups
Betriebsverhalten von unterschiedlich ausgelegten, in der Raumfahrt eingesetzten Nickel-Cadmium-Zellen mit einer Kapazitaet von 12 Ah
1985
6 Seiten, 6 Bilder, 3 Tabellen, 7 Quellen
Aufsatz (Konferenz)
Englisch
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