电池2017，Vol.47Issue(6)：328-331,4.DOI:10.19535/j.1001-1579.2017.06.003
三维纳米硅/多孔碳的储锂性能
Lithium storage performance of 3D nano-silicon/porous carbon
摘要
Abstract
Three-dimensional(3D) silicon/porous carbon composite was synthesized via a one-step facile approach assisted by chemical vapor deposition (CVD),using nano-silicon as active material and acetylene as carbon source.The porous amorphous carbon coated nano-silicon composite with 3D electrical conducting network was characterized by transmission electron microscopy (TEM) and thermogravimetric analysis (TGA).The composite used for lithium storage kept a reversible capacity of 1 270 mAh/g (0.01-1.00 V,200 mA/g) after 100 cycles calculated based on silicon.The improved energy density and cycling performance could be mainly attributed to the in-situ formed porous amorphous carbon layer of the 3D network with better buffering and electron/ion conductivity properties.关键词
锂离子电池/硅/碳复合材料/三维导电网络/化学气相沉积Key words
Li-ion battery/silicon/carbon composite/three-dimensional(3D) network/chemical vaper deposition(CVD)分类
信息技术与安全科学引用本文复制引用
罗金华,倪伟..三维纳米硅/多孔碳的储锂性能[J].电池,2017,47(6):328-331,4.基金项目
国家自然科学基金(51403193) （51403193）
