Sn-Co-M-C(M=Zn,Fe)负极材料的制备及性能研究  

Preparation and Performance of Sn-Co-M-C(M=Zn,Fe) Composites as an Anode Material

作　　者：方国清[1] 刘伟伟[1] 贺诗词[1] 张茜[1] 郑军伟[1] 李德成[1] 

机构地区：[1]苏州大学化学电源研究所,江苏苏州215006

出　　处：《电化学》2012年第4期328-331,共4页Journal of Electrochemistry

基　　金：国家自然科学基金项目(No.200933005;No.20903077);国家973计划项目(No.2009CB220102)资助

摘　　要：以金属氧化物和蔗糖为原料,经混合球磨,高温碳热还原制备Sn-Co-M-C(M=Zn,Fe)复合负极材料.采用XRD、SEM测试样品结构,观察样品形貌.电化学性能测试表明,Sn-Co-Zn-C电极首次嵌锂比容量571 mAh·g-1,45次循环后比容量369 mAh·g-1,其比容量和循环寿命好.The anode materials of Sn-Co-M-C （M--Zn, Fe） composites were prepared by carbothermal re- duction method from metal oxides and sucrose in N2 atmosphere. Their structural and electrochemical proper-ties were studied by XRD, SEM and charge-discharge test. Among them, the Sn-Co-Zn-C composite showed higher specific capacity and good cycle performance. The initial special discharge capacity of 571 mAh·g^-1 could be obtained, while 369 mAh·g^-1 was still kept after 45 cycles.

关 键 词：碳热还原法 锂离子电池 负极材料 Sn基合金 

分 类 号：TM912.9[电气工程—电力电子与电力传动]