四氧化三铁/石墨烯复合锂离子电池负极材料制备及性能研究  

The Preparation and Electrochemical Properties of Fe3O4/Graphene Composite as Anode Materials for Li Ion Battery

作　　者：安玉良[1] 任玉杰 闫杭亮 马腾飞 袁霞[1] AN Yu-liang;REN Yu-jie;YAN Hang-liang;MA Teng-fei;YUAN Xia(College of Material Science and Engineering,Shenyang Ligong University,Shenyang 110159,China)

机构地区：[1]沈阳理工大学材料科学与工程学院,辽宁沈阳110159

出　　处：《化学与粘合》2020年第3期159-161,168,共4页Chemistry and Adhesion

基　　金：辽宁省自然科学基金项目(编号:201602653);沈阳理工大学材料加工工程重点学科开放基金项目(编号:20140302)。

摘　　要：采用水热法成功制备了Fe3O4/石墨烯复合材料,用XRD和SEM等手段对复合材料的结构和形貌进行表征,结果表明Fe3O4颗粒细小且分布均匀,与石墨烯交叠复合在一起,此结构能有效地提高两种材料的协同效应;通过恒流充放电测试对复合材料的电化学性能进行分析,结果表明Fe3O4/石墨烯的储锂性能优于单一的四氧化三铁和石墨烯,30次循环后,可逆容量为1086mAh·g^-1,且循环性能优异。The Fe3O4/grapheme composites are successfully prepared by hydrothermal method. The structure and morphology of the composites are characterized by XRD and SEM. The results show that the Fe3O4 nanoparticles are small and uniformly overlaps with graphene, and this structure can effectively promote their synergic effect. The electrochemical performance of the composites is analyzed by the constant current charge-discharge test. The electrochemical properties of the Fe3O4/graphene composite are better than that of the single Fe3O4 and graphene. After 30 cycles, the reversible capacity of Fe3O4/graphene composite is 1086 mAh·g-1, and the cycling performance is excellent.

关 键 词：锂离子电池 负极材料 石墨烯 四氧化三铁 

分 类 号：TM912[电气工程—电力电子与电力传动]