Lithiation of FeS/sub 2/ for use in thermal batteries
The inability of the standard Sandia catholyte to meet the discharge requirements of a 60-min, Li(Si)/FeS/sub 2/ long-life thermal battery (LLTB) necessitated the development of a new catholyte based on lithiated FeS/sub 2/. Lithiation of FeS/sub 2/ by Li/sub 2/S, Li alloys, and Li/sub 2/O was examined under various processing conditions and the resulting catholytes were tested in a half-size, 5-cell battery. The best overall results were achieved with Li/sub 2/O-lithiated catholytes. The optimum compositions were successfully tested in the full-size LLTB. The excessive, initial voltage transient normally observed was totally eliminated and the pulse performance near the end of life was dramatically improved.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (USA). Battery Development Div.
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 7156388
- Report Number(s):
- SAND-86-2248C; CONF-870111-1; ON: DE87001417
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
250903* -- Energy Storage-- Batteries-- Materials
Components
& Auxiliaries
ALKALI METALS
CATHODES
CHALCOGENIDES
ELECTRIC BATTERIES
ELECTROCHEMICAL CELLS
ELECTRODES
ELECTROLYTES
ELEMENTS
IRON COMPOUNDS
IRON SULFIDES
LITHIUM
METALS
SULFIDES
SULFUR COMPOUNDS
THERMAL BATTERIES
TRANSITION ELEMENT COMPOUNDS