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Study of Nickel Hydrogen Battery Discharge Performance After Charge and Stand at Warm Temperature
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English
Abstract
Spacecraft batteries are normally installed in the discharged condition. It may be necessary that they be charged and trickle-charged prior to launch in an environment different from that in which they are intended to operate; i.e., an environment in which the heat generated during charge and trickle charge is radiated to space. The purpose of the testing described herein was to determine the battery capacity achieved after treatment at prelaunch conditions as a function of charge rate, charge temperature, trickle charge temperature, and time. In this testing the discharge in every case was performed under simulated space thermal conditions. Charging was performed with a variety of battery starting temperatures, and heat dissipation was limited to that expected to be encountered under conditions of cooling with an air manifold. At the worst conditions of test, that is with 24°C (75°F) cooling air at the battery baseplate, 80 percent of the rated capacity was obtained.
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Citation
Donley, S. and Verrier, D., "Study of Nickel Hydrogen Battery Discharge Performance After Charge and Stand at Warm Temperature," SAE Technical Paper 929254, 1992, https://doi.org/10.4271/929254.Also In
References
- Stockel, J.F. “Self Discharge Performance and Effects of Electrolyte Concentration on Capacity of Nickel-Hydrogen (NiH 2 ) Cells” 20th Intersociety Energy Conversion Engineering Conference Miami Beach, FL August 1985 1 172 174
- Verrier, D.C. Donley, S.W. “Post-Storage Conditioning of Nickel-Hydrogen Battery Cells” 27th Intersociety Energy conversion engineering Conference San Diego, CA August 1992