Investigation of lithium thionyl chloride battery safety hazards. Quarterly technical progress report 29 Sep-31 Dec 81
Glass Li/SOCl2 cells have been designed and built which will be used to discharge and overdischarge flat electrodes in sufficient but not excess electrolyte. The cells will be used for generation of electrolyte samples for chemical spectroscopy and overdischarged cathodes for morphological studies. A metal cell has been designed and built for overdischarge of flat electrodes. E.S.R., Raman, FTIR, and UV/VIS fluorescence spectra have been taken of electrolyte at various stages of discharge and overdischarge. Two chemical species detectable with ESR are generated on discharge. The first resonance found also in electrolyte solutions saturated with sulfur, develops uniformly through discharge. The second as yet unidentified species becomes evident towards the second half of discharge increasing species becomes evident towards the second half of discharge increasing in concentration faster than sulfur. Following removal from the cell, the second species disappears as visible fluorescence increases in intensity the sulfur related peak remains. Raman and FTIR spectra show a profusion of emission and absorption peaks respectively. Analysis of this data is still in process. Preliminary optical studies of overdischarged cathode studies in cathode limited cells show that lithium dendrites do grow on the surface of carbon.
- Research Organization:
- GTE Communications Products Corp., Waltham, MA (USA). Power Systems Operation
- OSTI ID:
- 5790412
- Report Number(s):
- AD-A-129299/4
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
250901* -- Energy Storage-- Batteries-- Design & Development
CHEMICAL ANALYSIS
CRYSTALS
DENDRITES
ELECTRIC BATTERIES
ELECTROCHEMICAL CELLS
ELECTROLYTES
ELECTRON SPIN RESONANCE
EMISSION SPECTRA
FLUORESCENCE
HAZARDS
INFRARED SPECTRA
LITHIUM-CHLORINE BATTERIES
LUMINESCENCE
MAGNETIC RESONANCE
METAL-GAS BATTERIES
RAMAN SPECTRA
RESONANCE
SAFETY
SPECTRA
VISIBLE SPECTRA