Sealed Primary Lithium-Inorganic Electrolyte Cell
Quarterly rept. no. 11, 1 Sep-30 Nov 1976
MALLORY (P R) AND CO INC BURLINGTON MA LAB FOR PHYSICAL SCIENCE
Pagination or Media Count:
The hermetic LiSOCl2D cells presented an explosion hazard on abuse and a voltage delay problem after high temperature storage. The authors investigated both these problem areas and made significant progress in both. The authors have been examining the Li anode film which causes the voltage-delay problem using SEM. They gathered data on the morphology and the rate of film growth as a function of various electrolyte variables such as LiAlCl4 concentration, additives such as S2Cl2, and SO2. Based on the available data a tentative model was proposed to describe the Li film growth process. It was found earlier that film growth rate could be reduced by reducing the LiAlCl4 concentration in the electrolyte. The LiCl film morphology can be changed dramatically by the addition of SO2. During the last quarter the authors evaluated the effect of the above electrolyte variables on the voltage-delay characteristics of the LiSOCl2D cells. The authors found that the LiAlCl4 concentration affects both the voltage-delay and the intrinsic energy density of the LiSOCl2D cells. The 1.0 and 0.5 M LiAlCl4-SOCl2 was the best from both the voltage-delay and the energy density stand points.
- Physical Chemistry
- Electrochemical Energy Storage