Operational Characteristics of Lithium Cells

As a rule, a decrease in the discharge temperature results in a decrease in the discharge voltage (following an increase in the polarization and ohmic losses) and a decrease in capacity. 

The maximum power density is also developed in cells with liquid oxidants 50-100 W/kg and 70-200 W/dm. The minimum power density is characteristic for lithium iodine cells designed for continuous operation for 10 years and more. 

Primary lithium cells compare favorably with cells with aqueous electrolytes because of their very good shelf life in other words, very low self-discharge. The best shelf life is characteristic for lithium iodine cells, in which the capacity loss under storage for 10 years at the temperature of 40°C does not exceed 10% The guaranteed shelf life (under due conditions) of lithium cells with other electrochemical systems is 

5-15 years, which corresponds to the annual capacity loss because of self-discharge of 0.5-3%. 

All lithium cells are absolutely airproof, which provides their operation in any space attitude. Most of lithium cells possess sufficient mechanic strength and can be used in military, aerospace, and other critical equipment. 

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