锂离子电池负极材料Fe_2O_3/石墨复合材料的水热合成和电化学性能研究  

Hydrothermal synthesis and electrochemical performance of Fe_2O_3 /graphite composite as an cathode material for lithium ionic battery

作　　者：陈双莉[1] 焦宝娟[2] 

机构地区：[1]西安建筑科技大学理学院,西安710055 [2]西安文理学院化学与化学工程学院,西安710065

出　　处：《化工新型材料》2014年第1期134-136,共3页New Chemical Materials

基　　金：西安市科技计划项目(CX12189WL19)

摘　　要：在230℃,利用水热法将纳米氧化铁担载于石墨上制备了Fe2O3/石墨复合材料,运用X射线衍射和扫描电镜对其形貌和结构进行了表征,并研究了目标物作为锂离子电池负极材料的电化学储锂性能。研究结果证明,经50次循环后,复合材料的嵌锂容量维持在425mAh/g,远高于相同条件下石墨的252mAh/g和Fe2O3的108mAh/g。Fe2O3/graphite composite was prepared by a facile hydrothermal method at 230℃. The morphology and structure were investigated by means of X-ray diffraction （XRD） and scanning electron microscopy （SEM）. The electrochemical performance of synthesized composite was studied as an cathode material for lithium ionic batteries. The electrochemical measurement results revealed that the composite had a excellent discharge capacity of 425 mAh/g higher than that 252 mAh/g of graphite and 108 mAh/g of Fe2O3 at the same current density after 50 cycles.

关 键 词：FE2O3 石墨复合 负极 锂离子电池 

分 类 号：TM912[电气工程—电力电子与电力传动]