New technique for improving voltage regulation in Li/FeS/sub 2/ thermal batteries
Lithiation of the FeS/sub 2/ cathode material lowers the voltage of the initial discharge (which is often too high for many applications) and raises the voltage of the battery at the end of discharge (which is often too low due to a second voltage plateau). In the example of the Sandia ten-cell Li(Si)/FeS/sub 2/ long-life thermal battery, lithiating the cathode improves the voltage regulation from 12.8 to 0.5% during the initial 5 minutes of discharge and from 38 to 12% over the entire 60 minute discharge time. Batteries employing the new lithiated cathode material were also subjected to dynamic mechanical environments, both before and during electrochemical discharge. No adverse changes in either the electrical or mechanical properties of these batteries was observed, relative to standard composition batteries.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (USA)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 5690938
- Report Number(s):
- SAND-85-2284C; CONF-860688-2; ON: DE86010962
- Resource Relation:
- Conference: 32. NASA/US Army international power sources symposium, Cherry Hill, NJ, USA, 8 Jun 1986; Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
THERMAL BATTERIES
VOLTAGE REGULATORS
CATHODES
IRON SULFIDES
LITHIUM
ALKALI METALS
CHALCOGENIDES
ELECTRIC BATTERIES
ELECTROCHEMICAL CELLS
ELECTRODES
ELEMENTS
IRON COMPOUNDS
METALS
SULFIDES
SULFUR COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
250902* - Energy Storage- Batteries- Performance & Testing