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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 9    No. 3    September 1999

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Effects of cathode materials on discharge characteristics of Li-B alloy/FeS2 thermal battery
Liu Zhijian(刘志坚)1 Duan Wei(段 伟) 1 Li Zhiyou(李志友) 1 Huang Yinghua(黄英华) 2 Qu Xuanhui(曲选辉) 1 Huang Baiyun(黄伯云) 1

1.Powder Metallurgy Institute,Central South University of Technology, Changsha 410083, P.R.China;
2. Jinzhu Powder Injection Manufacture Co. Ltd.Jinan 250033, P.R.China

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 FeS2had 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.

 

Key words: LiB; FeS2; thermal batteries; cathode effect

ISSN 1672-7029
CN 43-1423/U

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