Sodium chloride battery development program for load leveling. Interim report, 1 Apr--31 Dec 1974. [Na/. beta. -alumina/Na chloroaluminate]

Technical Report · Sun Jun 01 04:00:00 EDT 1975

OSTI ID:7347715

Werth, J

The ESB sodium chloride cell consists of a molten sodium negative, a beta-alumina solid electrolyte also serving as a separator, and a positive mix containing both molten sodium chloroaluminate and a faradaic additive. The goal of the project is to develop a battery with a manufacturing cost less than 1/3 that of industrial lead--acid batteries and a service and cycle life of at least 10 years. Long life, on the order of 2500 to 5000 deep cycles, is expected since there are no solid--solid transformations in either the negative or positive compartments. On the basis of the performance of laboratory-scale cells, the overall battery module proposed for load leveling is expected to have a specific energy of at least 45 Wh/lb (100 Wh/kg) and possibly more. A program aimed at improving the quality of beta alumina tubes and at running life tests of tubular cells was given high priority, and is now producing tubes with resistivities of about 20 ohm-cm at 200C and significantly better mechanical properties. (GRA)

• Research Organization: ESB, Inc., Yardley, Pa. (USA). Power Technology Dept.
• OSTI ID: 7347715
• Report Number(s): PB-243872/9ST
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
250901* -- Energy Storage-- Batteries-- Design & Development
ALKALI METAL COMPOUNDS
ALUMINATES
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CHALCOGENIDES
CHLORINE COMPOUNDS
COST
ELECTRIC BATTERIES
ELECTROCHEMICAL CELLS
ENERGY STORAGE
ENERGY STORAGE SYSTEMS
HALOGEN COMPOUNDS
METAL-NONMETAL BATTERIES
MOLTEN SALTS
OFF-PEAK ENERGY STORAGE
OXIDES
OXYGEN COMPOUNDS
PLANNING
RELIABILITY
SALTS
SODIUM COMPOUNDS
STORAGE