Improved methods for achieving the equilibrium number of phases in mixtures suitable for use in battery electrodes e. g. , for lithiating FeS/sub 2/
A method is disclosed for preparing lithiated, particulate FeS/sub 2/ useful as a catholyte material in a lithium thermal battery, whereby the latter's voltage regulation properties are improved. The method comprises admixing FeS/sub 2/ and an amount of a lithium-containing compound, whereby the resultant total composition falls in an invariant region of the metallurgical phase diagram of its constituent components. Said lithium-containing compound and FeS/sub 2/ are admixed together with a solid electrolyte compatible with said catholyte, and the mixture is heated at a temperature above the melting point of said electrolyte and at which said mixture reaches its thermodynamic equilibrium number of phases.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (USA)
- DOE Contract Number:
- AC04-76DP00789
- Assignee:
- SNL; EDB-87-071813
- Patent Number(s):
- None
- Application Number:
- ON: DE87007189
- OSTI ID:
- 6981683
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
250903* -- Energy Storage-- Batteries-- Materials
Components
& Auxiliaries
ALKALI METAL COMPOUNDS
CHALCOGENIDES
DISPERSIONS
ELECTRIC BATTERIES
ELECTRIC POTENTIAL
ELECTROCHEMICAL CELLS
ELECTRODES
HEATING
IRON COMPOUNDS
IRON SULFIDES
LITHIUM COMPOUNDS
MIXTURES
SULFIDES
SULFUR COMPOUNDS
THERMAL BATTERIES
TRANSITION ELEMENT COMPOUNDS