MSb_2型金属间化合物作为锂离子电池负极材料的研究  

Study on the Metallic Compounds of MSb_2 as Anode Material for Lithium Ion Batteries

作　　者：蒋小兵[1] 赵新兵[1] 张丽娟[1] 曹高劭[1] 周邦昌[1] 邬正泰 

机构地区：[1]浙江大学材料科学与工程系,浙江杭州310027

出　　处：《材料科学与工程》2001年第1期60-62,28,共4页Materials Science and Engineering

基　　金：国家自然科学基金!资助项目(5 97710 32 ) ;教育部博士点基金资助!项目 (970 335 18)

摘　　要：采用真空悬浮熔炼与高能球磨制备了MSb2 (M =Co和Fe)型合金粉末 ,利用恒电流电池测试仪研究了其电化学性能。研究发现CoSb2 和FeSb2 电极的嵌 脱锂平台均在 0 8和 1 0V左右 ;在 2 0mA g电流密度下的首次嵌锂反应的可逆容量为 4 30mAh g ;电流密度为 10 0mA g条件下 ,CoSb2 首次嵌锂反应的可逆容量为 380mAh g ,FeSb2 首次嵌锂反应的可逆容量 34 0mAh g。所以 ,MSb2 型金属锑化物可以作为锂离子电池负极材料的侯选材料。Sb\|based inter\|metallic compounds(MSb\-2) were prepared by levitation melting and milled by high\|energy ball\|mill.Experiments show that the plateaus of lithium ion insertion and extraction were at about 0\^8 and 1\^0V. Their reversible capacities are all about 430mAh/g and their cycle lives are almost same during the cycling at the current density of 20mA/g.But at the current density of 100mA/g they both have a little difference in the cycle life.The materials show the superior properties and can be considered as a candidater for the anode materials of lithium ion batteries.

关 键 词：金属锑化物 负极材料 锂离子电池 锑合金粉末 电化学性能 

分 类 号：TM912[电气工程—电力电子与电力传动] TM24[一般工业技术—材料科学与工程]