Title :
Molybdenum container development for Na/S cells
Author :
Rasmussen, James R. ; Olsen, Scott L. ; Carmen, David F.
Author_Institution :
Beta Power, Inc., Salt Lake City, UT, USA
Abstract :
The authors describe the progress which has been made to date in the utilization of molybdenum as a cathode container material for aerospace sodium/sulfur cells. Two basic designs were utilized during this effort. The first of these was a tubular, central sodium cell designed for application in spacecraft batteries in geosynchronous earth orbits. The second cell was a flat plate cell designed as a proof-of-concept cell for use in a bipolar configuration in high, pulsed power applications. These two types of cells are described. The welding development process is outlined. The initial thermo-compression bonding trials of molybdenum to alpha-alumina are discussed. Typical performance characteristics for the two cell types are summarized
Keywords :
cathodes; electrochemical electrodes; secondary cells; sodium; space vehicle power plants; sulphur; Mo; Na-S cells; aerospace cells; alpha-alumina; bipolar configuration; cathode container material; flat plate cell; geosynchronous earth orbits; pulsed power applications; spacecraft batteries; thermo-compression bonding trials; tubular cell; Aerospace materials; Cathodes; Conducting materials; Containers; Corrosion; Costs; Fabrication; Polarization; Thermal conductivity; Thermal expansion;
Conference_Titel :
Power Sources Symposium, 1992., IEEE 35th International
Conference_Location :
Cherry Hill, NJ
Print_ISBN :
0-7803-0552-3
DOI :
10.1109/IPSS.1992.281973
