SnO_2超细粉的制备与嵌锂性能  

Preparation and lithium insertion performance of nano-powder SnO_2

作　　者：齐智[1] 吴锋[1] 

机构地区：[1]北京理工大学化工与环境学院

出　　处：《电池》2005年第4期268-269,共2页Battery Bimonthly

基　　金：国家重点基础研究发展计划资助项目(2002CB211800);国家自然科学基金资助项目(90206043)

摘　　要：用液相沉淀法制备了纳米级的SnO2超细粉,通过X射线衍射及透射电镜(TEM)对其进行表征,并对其电化学嵌脱锂性质做了研究.结果表明:用液相沉淀法制备的SnO2晶体粒径分布较为均匀,分布范围为10～20 nm.该材料的首次嵌脱锂容量分别可以达到1 468 mAh/g和520 mAh/g.Nano-powder SnO2 was prepared by liquid deposition method, The rnatenal was characterized by XRD and transmission electron rnleroscopy （TEM） . Electrochernieal lithium insertion/ernersion character of the material was studied. It could be observed that the average erystallite size of the material prepared by liquid deposition method was in the region of 10-20 nm. The initial lithium insertion/ernersion eapaeities of the material increased to 1 468 rnAh/g and 520 mAh/g respectively.

关 键 词：SNO2 超细粉 锂离子电池 

分 类 号：TM911[电气工程—电力电子与电力传动]