Charger electronics for a sodium sulfur battery experiment

Conference · Sat Dec 30 23:00:00 EST 1995

OSTI ID:163356

Hobbs, R M ^[1]; Baker, Jr, W E; Shortt, D J ^[2]

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1. Orbital Sciences Corp., Greenbelt, MD (United States)
2. Naval Research Lab., Washington, DC (United States)

The Naval Research Laboratory is designing and integrating a sodium-sulfur battery experiment to be flown aboard the space shuttle. Battery performance under space flight conditions will be investigated through application of charge/discharge cycles to simulate the effects of GEO, LEO, as well as a final discharge cycle, in which the individual cells are ``frozen`` in various states of discharge. The charger electronics is the component of the battery electronics system that performs the required battery charging function. The charger is required to provide a regulated, constant-current charge of 2, 4, or 16 Amperes to a series-connected battery cell stack whose terminal voltage may range from 1.65 to 9.4 Volts. The charger must adapt to insertion or removal of a cell from the stack while charging is taking place and must meet applicable EMI specifications at its shuttle power interface.

• OSTI ID: 163356
• Report Number(s): CONF-950729--
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
BATTERY CHARGERS
BATTERY CHARGING
CONTROL EQUIPMENT
DESIGN
ELECTRICAL TRANSIENTS
ELECTRONIC CIRCUITS
EQUIPMENT PROTECTION DEVICES
FEEDBACK
OVERVOLTAGE
PERFORMANCE
SODIUM-SULFUR BATTERIES
SPACECRAFT POWER SUPPLIES