Fe3O4／C的制备与电化学性能研究  

Electrochemical Performance of Fe_3O_4/C Composites as Negative Material for Lithium-Ion Batteries

作　　者：蔡俊杰[1] 姚姝[1] 李泽胜[1] 孟辉[1] 沈培康[1] 

机构地区：[1]中山大学光电材料与技术国家重点实验室,广东省低碳化学与过程节能重点实验室,物理科学与工程技术学院,广东广州510275

出　　处：《电化学》2013年第1期89-92,共4页Journal of Electrochemistry

基　　金：国家自然科学基金(No.21073241,No.U1034003)资助

摘　　要：应用共沉淀法并以原位聚合苯胺包覆Fe3O4作碳源制备Fe3O4/C的复合材料.XRD、SEM、TEM等测试显示,样品中Fe3O4纳米颗粒(40～80 nm)均匀分散在无定形碳的内部.在50 mA.g-1电流密度下,经过30次循环充放电测试,该材料的容量仍保持在1000 mAh.g-1左右.The Fe3O4/Carbon composites have been synthesized through coprecipitation pathway and by insitu aniline polymerization as a carbon source. Structural characterization and morphological study of the composites were investigated by using XRD, SEM and TEM techniques. The results showed that the nanosized Fe3O4 particles（40 - 80 nm） were encapsulated in the amorphous carbon. During the electrochemical tests, the Fe3O4/C composites exhibited high capaticity and excellent cycle ability, the retention of capaticity was about 1000 mAh·g^-1 after 30 cycles of charge/discharge tests at 50 mA·g^-1

关 键 词：FE3O4 负极材料 锂离子电池 无定形碳 

分 类 号：O646[理学—物理化学] TM912.9[理学—化学]