文献类型：期刊文献

英文题名：Sponge-like reduced graphene oxide/silicon/carbon nanotube composites for lithium ion batteries

作者：Fang, Menglu[1];Wang, Zhao[1];Chen, Xiaojun[2];Guan, Shiyou[1]

机构：[1]East China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai 200237, Peoples R China;[2]Jiujiang Tinci Mat Technol Co Ltd, R&D Dept, Jiujiang 332500, Peoples R China

年份：2018

卷号：436

起止页码：345

外文期刊名：APPLIED SURFACE SCIENCE

收录：;EI(收录号：20175004533545);WOS:【SCI-EXPANDED(收录号:WOS:000425723100038)】；

语种：英文

外文关键词：Sponge-like structure; Si; Composite; Lithium ion battery

摘要：Three-dimensional sponge-like reduced graphene oxide/silicon/carbon nanotube composites were synthesized by one-step hydrothermal self-assembly using silicon nanoparticles, graphene oxide and amino modified carbon nanotubes to develop high-performance anode materials of lithium ion batteries. Scanning electron microscopy and transmission electron microscopy images show the structure of composites that Silicon nanoparticles are coated with reduced graphene oxide while amino modified carbon nanotubes wrap around the reduced graphene oxide in the composites. When applied to lithium ion battery, these composites exhibit high initial specific capacity of 2552 mA h/g at a current density of 0.05 A/g. In addition, reduced graphene oxide/silicon/carbon nanotube composites also have better cycle stability than bare Silicon nanoparticles electrode with the specific capacity of 1215 mA h/g after 100 cycles. The three-dimension sponge-like structure not only ensures the electrical conductivity but also buffers the huge volume change, which has broad potential application in the field of battery. (C) 2017 Elsevier B.V. All rights reserved.