锂电池正极材料CuFeS_2的电化学性能研究

Study on the Electrochemical Performance of Lithium Batteries Cathode Materials CuFeS_2

本文利用溶剂热方法制备的CuFeS2粉体作为锂电池正极材料装配电池进行电化学性能测试。结果表明,电池在电流密度为C/5 0时,20℃的一次放电容量达到了1100mAh/g;80℃时放电容量达到了1850mAh/g。电流密度为C/2时,放电容量为510mAh/g。-20℃时放电容量仍可达到475mAh/g。此外,对电池的放电机理也进行了探讨。

In this paper, CuFeS2 powder prepared by hydrothermal method is taken as cathode materials of lithium battery assembly battery for electrochemical performance test. The result shows that the battery in the current density is C/50, a discharge capacity of 20℃ reached l l00mAh/g; 80℃ discharge capacity reached 1850mAh/g. When current density was C/2, the discharge capacity is 510mAh/g. -20℃ discharge capacity can reach 475mAh/g. In addition, the battery discharge mechanism is also discussed.