锂离子电池Sn-SBA15负极材料的复合电镀制备及其性能  

Composite Electroplating and Characterizations of Sn-SBA15 Anode for Lithium-Ion Batteries

作　　者：樊小勇[1] 许金梅[1] 庄全超[1] 江宏宏[1] 黄令[1] 姜艳霞[1] 董全峰[1] 孙世刚[1] 

机构地区：[1]固体表面物理化学国家重点实验室厦门大学化学系,福建厦门361005

出　　处：《电化学》2007年第1期25-29,共5页Journal of Electrochemistry

基　　金：国家"973"项目(2002CB211804)资助

摘　　要：应用复合电镀法制备Sn-SBA15电极.充放电测试得其初始放电(嵌锂)容量,达到1075mAh/g.充电(脱锂)容量为630mAh/g,经过50周循环后充放电容量均保持在400 mAh/g以上.XRD分析表明,Sn-SBA15电极具有四方晶型锡结构;而SEM观察到电极表面的蜂窝状结构.交流阻抗谱结果显示,Sn-SBA15电极表面有SEI膜的生成.Sn-SBA15 anode was prepared by composite electroplating. The first discharge and charge capacity was 1075mAh/g and 630mAh/g respectively. After fifty charge/discharge cycles, the charge and discharge capacity of Sn-SBA15 were retained above 400mAh/g. XRD patterns indicated that the Sn-SBA15 has tetragonal crystal type. SEM images showed that the Sn-SBA15 had a honeycombed surface. EIS results indicated that there was SEI film formed on the surface of Sn-SBA15 electrode.

关 键 词：复合电镀 锡 锂离子电池 循环伏安 EIS XRD SEM 

分 类 号：TM912[电气工程—电力电子与电力传动]