Computer Science – Performance
Scientific paper
Feb 1995
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995batt.work..185a&link_type=abstract
In NASA. Marshall Space Flight Center, The 1994 27th Annual NASA Aerospace Battery Workshop p 185-207 (SEE N95-26785 09-44)
Computer Science
Performance
Accelerated Life Tests, Electric Equipment Tests, Electrolytic Cells, Nickel Hydrogen Batteries, Performance Prediction, Potassium Hydroxides, Pressure Vessel Design, Pressure Vessels, Service Life, Zirconium Oxides, Comsat Program, Electrical Properties, High Strength, Hubble Space Telescope, Low Cost, Sintering, Space Programs, Thermodynamic Properties, Wall Pressure
Scientific paper
A standard Nickel-Hydrogen (NiH2) Individual Pressure Vessel (IPV) battery cell is needed to meet future low cost, high performance mission requirements for NASA, military, and civil space programs. A common or standard cell design has evolved from the heritage of HST, Milstar, and other Air Force Mantech cell designs with substantial flight experience, while incorporating some of the historical COMSAT cell design features described in a previous NASA publication. Key features include slurry process nickel electrodes having high strength, long life and high yield (lower cost), and dual layer zircar separators for improved KOH retention, uniformality, and longer life. The cell design will have a zirconium oxide wall wick inside the pressure vessel to redistribute electrolyte and extend life. The slurry electrode will be 35 mils thick to take advantage of qualified cell mechanical configurations and proven assembly and activation techniques developed by Eagle Picher Industries (EPI) for the Hubble Space Telescope (HST) RNH-90-3 and 'Generic HST' RNH-90-5 cell designs with back-to-back nickel electrodes produced by the dry sinter process. The 80Ah common cell design can be scaled to meet capacity requirements from 60Ah to 100Ah. Producibility, commonality, and long life performance will be enhanced with the robust cell design described herein.
Armantrout Jon D.
Waller J. S.
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