Recent developments in Li(Si)/FeS/sub 2/ thermal battery technology
The Li(Si)/FeS/sub 2/ electrochemical system has been under development for thermal battery applications as an alternative to Ca/CaCrO/sub 4/ for several years at Sandia National Laboratories (SNL). The new technology differs from the old in that the anode is a pressed powder (44 wt % lithium in Li(Si) alloy) as opposed to sheet calcium or bimetal; and a separator composed of LiCl.KCl eutectic electrolyte and MgO binder is required with a separate cathode pellet composed of FeS/sub 2/ and electrolyte to replace the DEB pellet; and current collectors which may actually function as temperature moderators are always used. The applications require high reliability (typically, a success probability of 0.995) and a twenty-five year shelf-life. Consequently, a substantial materials effort has been necessary to assess degradation and deleterious reactions during storage and to determine necessary production specifications and controls. Experience with several applications has indicated that Li(Si)/FeS/sub 2/ thermal batteries are easier to develop and produce than those which use Ca/CaCrO/sub 4/. Furthermore, the new system is more capable and more forgiving. Therefore, an effort has been initiated to develop the new technology for all SNL thermal battery applications. This paper reviews both the materials-related development and the progress toward utilization of Li(Si)/FeS/sub 2/ for all SNL thermal battery applications.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (USA)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 5335179
- Report Number(s):
- SAND-81-2218C; CONF-820907-1; ON: DE82011929
- Resource Relation:
- Conference: 13. international power sources symposium, Brighton, UK, 27 Sep 1982
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
THERMAL BATTERIES
DESIGN
MATERIALS
BINDERS
ELECTRIC POTENTIAL
IRON SULFIDES
LITHIUM ALLOYS
LITHIUM CHLORIDES
MAGNESIUM OXIDES
PERFORMANCE
POTASSIUM CHLORIDES
SILICON ALLOYS
STORAGE LIFE
ALKALI METAL COMPOUNDS
ALKALINE EARTH METAL COMPOUNDS
ALLOYS
CHALCOGENIDES
CHLORIDES
CHLORINE COMPOUNDS
ELECTRIC BATTERIES
ELECTROCHEMICAL CELLS
HALIDES
HALOGEN COMPOUNDS
IRON COMPOUNDS
LITHIUM COMPOUNDS
LITHIUM HALIDES
MAGNESIUM COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
POTASSIUM COMPOUNDS
SULFIDES
SULFUR COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
250901* - Energy Storage- Batteries- Design & Development