Hydrothermal synthesis of FeS2 for lithium batteries

被引：53
|
作者：
Feng, Xu [1 ]
He, Xiangming [1 ]
Pu, Weihua [1 ]
Jiang, Changyin [1 ]
Wan, Chunrong [1 ]
机构：
[1] Tsing Hua Univ, Inst Nucl & New Energy Technol, Beijing 100084, Peoples R China
来源：
IONICS | 2007年 / 13卷 / 05期
关键词：
pyrite; marcasite; lithium cell; cathode material; hydrothermal synthesis;
D O I：
10.1007/s11581-007-0136-5
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
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.
引用
收藏
页码：375 / 377
页数：3
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