The pyrite FeS2 is regarded as the ideal cathode materials for lithium battery because of its excellent characteristic of environmental-benign, low-cost, large capacity volume, proper band gap, and high specific energy. The natural pyrite FeS2 with different purity were characterized by XRD, TG-DSC, BET and SEM techniques and their electritic properties were examined. The higher the purity of FeS2, the better its electritic capacity.%黄铁矿FeS2材料以其环保、价廉、克容量大、合适的禁带宽度，比能量高等优异特性被认为是锂电池的理想正极材料。文章就不同纯度的工业原料黄铁矿采用XRD，TG-DSC，BET，和SEM等技术进行了表征．并对其锂电性能进行了初步研究，不同纯度的黄铁矿其锂电性能有显著茇异，纯度越高，锂电性能越佳。
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