Sodium--antimony trichloride battery development program for load leveling. Interim report

Technical Report · Sat Apr 01 04:00:00 EST 1978

DOI:https://doi.org/10.2172/6801373· OSTI ID:6801373

Chreitzberg, A. M.

Progress in the development of a moderate-temperature molten salt load-leveling battery is outlined for the Na/..beta..-alumina/SbCl/sub 3/ system. Cell tests on 2-, 20-, 55-, and 80-Wh cells provide data for projection of performance for 200-Wh single-tube cells of 181 Wh/l and 88 Wh/kg at the 5-hour rate. Twenty-watt-hour cells deliver up to 500 100% depth cycles at 3 cycles per day. Ceramic processes--formerly magnesia-doped beta--were converted to lithia-doped ..beta..'' with a reduction in specific resistivity and an increase in Na/Na test life to greater than 1500 Ah/cm/sup 2/ beta. A complete cost analysis is presented for beta tubes and an estimate for a 100-MWh load-leveling battery yields $39/kWh. Major concerns are the unpredictable life of beta alumina solid electrolyte, positive current collector corrosion, short seal life, and the low probability of achieving load-leveling-battery cost targets.

• Research Organization: ESB, Inc., Yardley, Pa. (USA). ESB Technology Center
• OSTI ID: 6801373
• Report Number(s): EPRI-EM-751
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
250901* -- Energy Storage-- Batteries-- Design & Development
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