Effect of Fe addition on cycle performance of FeS 2 cathode for Li/FeS 2 battery

초록

The effect of Fe addition on the cycle performance of FeS 2 cathode for Li/FeS 2 cell was investigated. In Li/FeS 2 cell without Fe addition, a large voltage drop was observed in the initial discharge process, and the cell showed poor cycle performance during 40 charge/discharge cycles. On the other hand, the Li/FeS 2 cell with 10 wt-%Fe delivered a higher discharge capacity of ∼670 mAh g -1 FeS 2 in the first discharge and exhibited better cycle performance than the cell without Fe addition. The rate capability of the cell was also greatly improved by the addition of Fe in the FeS 2 cathode. © 2012 W. S. Maney & Son Ltd.

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