Chemical Reactions in Lithium Sulfur Dioxide Cells Discharged at High Rates and Temperatures

Autor: D. L. Demuth, W. L. Bowden, R. W. Holmes, L. Chow
Rok vydání: 1984
Předmět:
Zdroj: Journal of The Electrochemical Society. 131:229-234
ISSN: 1945-7111
0013-4651
DOI: 10.1149/1.2115554
Popis: The discharge capacity of Li/SO/sub 2/ cells was examined at high current and temperatures. D cells rated at 8 Ah delivered over 7 Ah at 5A current and 55/sup 0/C, while cells discharged at 72/sup 0/C gave 7 Ah at 3A. The cells were analyzed for residual lithium and sulfur dioxide. Spent cathodes were analyzed by infrared spectroscopy. A parasitic reaction was found in which Li/sub 2/S/sub 2/O/sub 6/ and S were formed, presumably by reaction of Li/sub 2/S/sub 2/O/sub 4/ with SO/sub 2/. This reaction became noticeable only under extreme combination of high rate and temperature.
Databáze: OpenAIRE