Lithium - Inorganic Electrolyte Batteries.
Abstract
This is the Final Report on ECOM Contract DAAB07-74-C-0030. It contains the results of work for the period September 1973-September 1977. This report summarizes our research and development effort on the Li/thionyl chloride battery system. The work on this program has centered along two lines: We have investigated the reaction stoichiometry of the cell discharge via chemical analysis of the reaction products; we have also investigated the problem of Li/SOCl2 cell passivation during storage at 71 C (160 F), with a particular view to finding practical solutions. Analytical measurements were carried out on complete Li/SOCl2 cells. Qualitative tests identified three discharge products, LiCl, S and SO2. Quantitative analyses were performed for these species. Of the several stoichiometries that can be written, the one most closely corresponding to the data is: 4Li + 2SOCl2 yields 4LiCl + S + SO2. The analytical data for LiCl and S correspond to this reaction. The SO2 is, however, twice the value predicted by this reaction. A reaction between S and SOCl2 which generates SO2 during the analysis may account for this. No other simple reaction stoichiometry corresponds to these analyses. Near UV spectrophotometry was investigated as an analytical tool for the SOCl2 system. The results of these experiments indicate that UV spectrophotometric techniques are a useful method for studying the Li/SOCl2 system and, further, that it is possible to study the mechanism of SOCl2 reduction in dilute solutions of organic solvents.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1978
- Accession Number
- ADA053378
Entities
People
- David E. Toland
- Gerhard L. Holleck
- Joseph R. Driscoll
- Peter Gudrais
- S. Barry Brummer