Chloromethyl chlorosulfate as a voltage delay inhibitor in lithi

Details Chloromethyl chlorosulfate as a voltage delay inhibitor in lithi Chloromethyl chlorosulfate as a voltage delay inhibitor in lithi

1991-04-05

1993-04-13

McFarlane, Anthony

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Include electrolyte chemically specified and method

429197, 429198, H01M 614, H01M 616

Patent

active

052022030

ABSTRACT:
Chloromethyl chlorosulfate (CMCS) is used as a passive film growth inhibitor in electrochemical cells to minimize voltage delay and low-voltage discharge. Film growth on lithium anodes is significantly diminished when CMCS is added to SOCl.sub.2 and SO.sub.2 Cl.sub.2 electrolytes of lithium batteries. The CMCS also has the effect of extending the shelf-life of Li/SOCl.sub.2 and Li/SO.sub.2 Cl.sub.2 batteries.

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patent: 4649209 (1987-03-01), Geering
A. Baldwin et al., "Active Primary Lithium Thionyl Chloride Battery For Artillery Applications", Proceedings of the 34th Power Sources Symposium, 1990.
F. Delnick et al., "Voltage Delay In Li/Socl.sub.2 Cells For Artillery Applications at -35.degree. C.", 34th International Power Sources Symposium, Cherry Hills, N.J., Jun. 25-28, 1990.
F. Delnick et al., "AC Impedance Study of Porous Carbon Collectors For Li/SO.sub.2 Primary Cells", Chemical Engineering Communication, vol. 35, 1985, pp. 23-28.
F. Delnick "Impedance of Passive Lithium Anodes in SOCl.sub.2 Solutions Under Low-Field Polarization", Proceedings of the Symposium on Primary and Secondary Ambient Temperature Lithium Batteries, 1988, pp. 212-228.

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