Hydrothermal synthesis of FeS2 for lithium batteries

作者：Feng, Xu; He, Xiangming^*; Pu, Weihua; Jiang, Changyin; Wan, Chunrong

来源：Ionics, 2007, 13(5): 375-377.

DOI：10.1007/s11581-007-0136-5

• pyrite
• marcasite
• lithium cell
• cathode material
• hydrothermal synthesis

Nanocrystalline FeS2 cathode material of lithium cell was synthesized from cheap materials of FeSO4, Na2S2O3, and sulfur by a hydrothermal process. The scanning electron microscopy analysis showed the obtained material was nano-sized, about 500 nm. The X-ray powder diffraction analysis showed that the synthetic FeS2 material had two phases of the crystalline structure, pyrite and marcasite. The phase of marcasite seems to have no negative effect on the electrochemical performance of the material. The synthetic FeS2 showed a significant improvement of electrochemical performance for Li/FeS2 cells.

• 出版日期2007-10
• 单位清华大学