Heat Generation in Lithium/Iron Sulfide Cells

摘要

An analysis is presented of the heat generated in Li-Al/FeS-Cu sub 2 S during constant current cycling. The experimental results give the heat generation rates during 40-A charge and 30 to 100-A discharge of an engineering-size multiplate cell. The average heat-generation rate ranged between 5-30 W with rates up to 50% higher at the end of discharge. A correlation of the average heat-generation rate as a function of discharge current is presented. A comparison is made between the estimated and measured temperatures of a multi-cell high-temperature module. The comparison shows that the temperature history of a battery can be predicted with an accuracy greater than 98%. (ERA citation 06:023613)