Variables affecting thermal cell and battery performance. [Ca/LiCl--KCl--SiO/sub 2//CaCrO/sub 4/--Fe]

Technical Report · Mon Jan 01 00:00:00 EST 1979

OSTI ID:6221374

Levy, S C; Morimoto, S S

The effect of closing force on thermal battery performance was studied. Tests were conducted with single cells, by use of a newly designed tester which fixes the stack height dimension on the cell and allows changes in pressure during discharge to be monitored, and with a five-cell battery, especially designed to measure pressure on the cell stack during discharge. Pressure variations were studied as a function of pellet density, initial stack pressure, composition, and current density. Also, the effect of pressure on capacity and excess alloy was investigated. In all cases, most of the initial pressure on the cells and batteries was lost upon activation. Some differences between single cells and batteries were noted in the pressure profile and performance as the above parameters were varied. These differences are attributed to a varying temperature in the battery versus a constant temperature in the single-cell tests and springlike insulation at the ends of the battery stack versus a rigid single-cell test fixture. 9 figures, 2 tables.

• Research Organization: Sandia Labs., Albuquerque, NM (USA)
• DOE Contract Number: EY-76-C-04-0789
• OSTI ID: 6221374
• Report Number(s): SAND-77-2011
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
THERMAL BATTERIES
FABRICATION
PERFORMANCE
PRESSURE DEPENDENCE
CONVERSION
DIRECT ENERGY CONVERSION
ELECTRIC BATTERIES
ELECTROCHEMICAL CELLS
ENERGY CONVERSION
ENERGY STORAGE SYSTEMS
THERMOELECTRIC CONVERSION
250902* - Energy Storage- Batteries- Performance & Testing
250901 - Energy Storage- Batteries- Design & Development