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Calcium oxyhalide batteries - a review

Conference · · Proc. - Electrochem. Soc.; (United States)
OSTI ID:6467874
The electrochemistry, safety aspects and performance of calcium-thionyl chloride (TC) and calcium sulfuryl chloride (SC) batteries containing lithium or calcium based electrolytes are reviewed. In Ca -oxyhalide solutions, the calcium anode is covered by CaCl/sub 2/ passivating layer which is a good ionic conductor and good electronic insulator. Therefore it is called Solid Electrolyte Interphase (SEI) and these batteries are called SEI batteries. The calcium/Ca/sup + +/-TC and calcium/Ca/sup + +/-SC systems exhibit a diode-like behavior i.e., they can deliver a high current densities at the anodic direction (discharge) while they behave like a very high resistor in the cathodic direction. The Ca/Ca/sup + +/-TC batteries exhibit an energy density similar to that of lithium batteries (about 500 wh/) but has much better safety features. Its power density for continuous drain is about four times the maximum recommended for the Li-SO/sub 2/ battery.
Research Organization:
Dept. of Chemistry, Tel Aviv University, Tel-Aviv
OSTI ID:
6467874
Report Number(s):
CONF-831086-
Conference Information:
Journal Name: Proc. - Electrochem. Soc.; (United States) Journal Volume: 84-4
Country of Publication:
United States
Language:
English