Analysis of the lithium sulfur dioxide system at ultra-high rate discharges. Final report, 27 September 1979-30 September 1980
The major objective of this program was to study the effects of electrolytes in Li/SO2 cells, for use in high rate abusive discharge conditions. Five electrolytes were investigated based on previous differential thermal analysis (DTA) results. A standard type electrolyte using acetonitrile (AN) was included in the program for comparison. The work was performed at Duracell International Inc. using LO26SX cells made at the Lithium Systems Division in North Tarrytown, New York. The cells were filled and tested at the Laboratory for Physical Science in Burlington, Massachusetts. Two electrolytes, AN(standard) and AN/PC (90/10) were found satisfactory for use in high rate abuse discharge conditions. Cells with AN/AA (90/10) electrolyte were satisfactory when fresh but these cells evolved CO2 on storage at 55 C and 72 C which led to severe cell-leakage. The remaining electrolytes, AN/BL/DME (85/10/5), PC/DME (50/50) and BL/DME (50/50), were regarded unsatisfactory for use in Li/SO2 cells for high rate abusive discharge conditions. The use of copper foil as the anode substrate was studied in LO26SX cells filled with the standard AN electrolyte. These cells were effective in reducing the sharp voltage reversal during abusive forced discharge at 2.0A at -30 C. The abuse resistance of these cells was at least as good as that of the standard cells.
- Research Organization:
- Duracell International, Inc., Burlington, MA (USA). Lab. for Physical Science
- OSTI ID:
- 5775847
- Report Number(s):
- AD-A-095549
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
LITHIUM-SULFUR BATTERIES
ELECTROLYTES
PERFORMANCE
DIFFERENTIAL THERMAL ANALYSIS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
NITRILES
SULFUR DIOXIDE
CHALCOGENIDES
ELECTRIC BATTERIES
ELECTROCHEMICAL CELLS
METAL-NONMETAL BATTERIES
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SULFUR COMPOUNDS
SULFUR OXIDES
THERMAL ANALYSIS
250903* - Energy Storage- Batteries- Materials
Components
& Auxiliaries