Development program for solid-electrolyte batteries. Final report
The sodium-sulfur battery uses molten sodium and sulfur as the active electrode materials, employs a solid electrolyte (beta alumina), and is operated 300 to 350/sup 0/C. The system is particularly promising for utility application because of the intrinsically low materials costs. The TRW cell design differed from those employed in other domestic sodium-sulfur battery programs in that the solid electrolyte was planar rather than tubular. This approach was advantageous from the standpoint of cell component cost and battery system design. These advantages were unfortunately obtained at the expense of a more complicated cell seal. The study demonstrated that the major challenges of developing the sodium-sulfur battery into a commercially viable energy-storage system are: (1) development of corrosion resistant sulfur-electrode containers; (2) design and development of a less highly stressed seal; (3) fabrication of long-life electrolytes; and (4) design of cells capable of full utilization of the active positive-electrode material (sulfur). Results are reported.
- Research Organization:
- TRW Defense and Space Systems Group, Redondo Beach, CA (USA)
- OSTI ID:
- 6261050
- Report Number(s):
- EPRI-EM-226; ON: DE82900246
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
SODIUM-SULFUR BATTERIES
DESIGN
PERFORMANCE TESTING
ALUMINIUM OXIDES
COMMERCIALIZATION
CONTAINERS
CORROSION RESISTANCE
ELECTRIC UTILITIES
ENERGY STORAGE
FABRICATION
HIGH TEMPERATURE
SEALS
SODIUM
SOLID ELECTROLYTES
SULFUR
ALKALI METALS
ALUMINIUM COMPOUNDS
CHALCOGENIDES
ELECTRIC BATTERIES
ELECTROCHEMICAL CELLS
ELECTROLYTES
ELEMENTS
METAL-NONMETAL BATTERIES
METALS
NONMETALS
OXIDES
OXYGEN COMPOUNDS
PUBLIC UTILITIES
STORAGE
TESTING
250901* - Energy Storage- Batteries- Design & Development
250902 - Energy Storage- Batteries- Performance & Testing
250903 - Energy Storage- Batteries- Materials
Components
& Auxiliaries