| Abstract: | The effects of FeS2 on the discharge characteristics of Li-B alloy/FeS2 thermal battery had been studied. Results showed that 2.5 % (mass fraction)Li2O would be needed to rule out the voltage pulse in the first part of discharge curves for the FeS2 powder of small particle size ( ＜ 44μm). After thermal decomposition, the FeS2 had transformed to Fe(1-x)S where x = 0. 024～ 0. 066. The deficiency of the cathode FeS2 would make discharge voltage decrease 0.4 V. In the discharge test at high temperature (600 ℃ ), the discharge voltage decreased fast with the acceleration of the thermal decomposition of FeS2. |
