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1. COMSAT's destructive physical analysis of aerospace nickel-cadmium cells for NASA/Goddard Space Flight Center

Author

Robbins, Kathleen M. B, Rao, Gopalakrishna M, and Yi, Thomas Y

Subjects
Energy Production And Conversion
Abstract

Over the past 5 years, COMSAT has performed numerous destructive physical analyses (DPA's) on NASA-Goddard-supplied nickel-cadmium (Ni/Cd) cells. The samples included activated but uncycled cells, wet stored cells, cycled cells, and anomalous cells. The DPA's provided visual, morphological, and chemical analyses of the cell components. The DPA data for the analyzed cells are presented. For the cells investigated, the leading cause of poor performance, as determined by DPA, has been poor negative electrode utilization, which resulted in negative-electrode-limiting operation.

Published
1993

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