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Spectroelectrochemical studies of thionyl chloride reduction in LiA1C1/sub 4/-SOC1/sub 2//Li cells

Conference · · Proc. - Electrochem. Soc.; (United States)
OSTI ID:6288504
In situ infrared spectroscopy of the reduction of SOC1/sub 2/ at a gold foil cathode has been used to measure the rates of utilization of SOC1/sub 2/ and briefly delayed formation of SO/sub 2/ in the initial stages of discharge. Formation of small amounts of SO/sub 2/C1/sub 2/ was also observed. Electron spin resonance studies utilized a flow-through cell to rapidly collect and freeze electrolytes following reduction at a gold wire or carbon fiber cathode. A radical identified as OC1S (g /SUB xx/ = 2.004, g /SUB yy/ =2.016, g /SUB zz/ = 2.008, A /SUB xx/ =57, A /SUB yy/ =29, A /SUB zz/ =25, as well as triplet state dimers of this radical, were the predominate ESR active species in discharged electrolyte. Warming the frozen electrolyte to room temperature for several minutes resulted in disappearance of these species and observation of radical sulfur species (g=2.003, g=2.019, g'=2.025).
Research Organization:
Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA
OSTI ID:
6288504
Report Number(s):
CONF-831086-
Conference Information:
Journal Name: Proc. - Electrochem. Soc.; (United States) Journal Volume: 84-1
Country of Publication:
United States
Language:
English