Iridium™ Battery Cell Pulse Mode Characterization

Paper #:
  • 929258

Published:
  • 1992-08-03
Citation:
Capulli, J., Myers, R., Murray, I., Lurie, C. et al., "Iridium™ Battery Cell Pulse Mode Characterization," SAE Technical Paper 929258, 1992, https://doi.org/10.4271/929258.
Pages:
9
Abstract:
Battery cell operating characteristics were determined for a unique load profile planned for the Motorola Iridium™ spacecraft. The Iridium™ mission requires that the battery be on line at all times and operated for extended periods with a short duration, high rate, charge/discharge duty cycle.The effort reported here reflects a repetitive duty cycle of 1.3 milliseconds discharge and 2.9 milliseconds charge, with discharge rates in the range 2.0 C to 3.0 C and charge rates in the range 0.9 C to 1.4 C.Cell transient characteristics were determined for candidate cell types including nickel-hydrogen individual pressure vessel (IPV), nickel-hydrogen common pressure vessel (CPV), Super nickel-cadmium, and fiber nickel-cadmium (FNC).Experimental approach, cell performance data, derived transient characteristics, and cell electrical models are presented.
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