Long life and low weight Ni/Cd cells for spacecraft
Nickel-cadmium cells of various designs, containing polymer reinforced inorganic separators and either chemically deposited or electrochemically deposited nickel and cadmium electrodes, have been studied for their cycle life performance. The performance goal of these Ni/Cd cells is more than 10 years of cycle life at 80% depth of discharge operation in a geosynchronous orbit. Three alternate cycle regimes, including one with a high rate (0.4C) charging (HGEO regime), were used to test the cells. In all cycle regimes, the performance goal appears to be feasible with selected cell designs. The cycle life, in general, was longer in the HGEO cycling regime. However, in practice this HGEO cycling requires a sequential charging system which results in a tradeoff to a standard low rate charge for GEO cycling because of the extra charge control equipment needed for an HGEO regime.
- Research Organization:
- Hughes Research Laboratories, Malibu, CA
- OSTI ID:
- 5960163
- Report Number(s):
- CONF-840804-
- Journal Information:
- Proc., Intersoc. Energy Convers. Eng. Conf.; (United States), Vol. 1; Conference: Intersociety energy conversion engineering conference, San Francisco, CA, USA, 19 Aug 1984
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
NICKEL-CADMIUM BATTERIES
PERFORMANCE TESTING
SERVICE LIFE
BATTERY SEPARATORS
CHARGE STATE
ELECTRIC DISCHARGES
REINFORCED PLASTICS
SPACECRAFT POWER SUPPLIES
WEIGHT
ELECTRIC BATTERIES
ELECTROCHEMICAL CELLS
ELECTRONIC EQUIPMENT
EQUIPMENT
MATERIALS
METAL-METAL OXIDE BATTERIES
POWER SUPPLIES
REINFORCED MATERIALS
TESTING
250902* - Energy Storage- Batteries- Performance & Testing