电泳法制备三维纳米硅/石墨烯锂离子电池负极材料  

Preparation of nano-silicon/reduced graphene oxide three-dimensional composite material for Li-ion battery anode by using electrophoresis

作　　者：刘昊[1] 李传涛[1] 董爱国[1] 郑志远[1] 张自力[1] LIU Hao;LI Chuan-tao;DONG Ai-guo;ZHENG Zhi-yuan;ZHANG Zi-li(Teaching Center for Experimental Physics,China University of Geosciences-Beijing,Beijing 100083,China)

机构地区：[1]中国地质大学(北京)物理实验教学中心

出　　处：《物理实验》2020年第1期1-5,共5页Physics Experimentation

摘　　要：采用直流电泳技术制备了具有多孔结构的纳米硅/石墨烯三维复合材料,并探究了其作为锂离子电池负极的电化学特性.结果表明:通过控制电泳工艺可以获得硅纳米粒子分散较为均匀的三维复合材料.作为锂离子电池负极,在放电电流密度为100mA/g时,该类复合材料的面容量可达到5.5mAh/cm^2.Porous nano-silicon/reduced graphene oxide three-dimensional composite material was prepared by using direct current electrophoresis technique,and their electrochemical properties were investigated as Li-ion battery anode.It was found that the nano-silicon/graphene three-dimensional composite material with uniform dispersion of Si nanoparticles could be obtained by controlling the process of the direct current electrophoresis.As Li-ion battery anode,this kind of composite had the area capacity as high as 5.5 mAh/cm^2 at the discharging current density of 100 mA/g.

关 键 词：电泳 锂离子电池 硅 石墨烯 负极材料 

分 类 号：TM911.3[电气工程—电力电子与电力传动]