Hollow Silica Spheres Embedded in a Porous Carbon Matrix and Its   Superior Performance as the Anode for Lithium-Ion Batteries

doi:10.1002/ppsc.201500218

CORC > 北京大学 > 地球与空间科学学院

	Hollow Silica Spheres Embedded in a Porous Carbon Matrix and Its Superior Performance as the Anode for Lithium-Ion Batteries
	Cao, Xi ; Chuan, Xiuyun ; Li, Shuang ; Huang, Dubin ; Cao, Guozhong
刊名	PARTICLE & PARTICLE SYSTEMS CHARACTERIZATION
	2016
关键词	anodes hollow silica spheres lithium-ion batteries porous carbon ELECTROCHEMICAL PROPERTIES HIGH-CAPACITY STORAGE COMPOSITE NANOSHEETS ELECTRODE SIO2 NANOSTRUCTURE NANOCOMPOSITE NANOPARTICLES
DOI	10.1002/ppsc.201500218
英文摘要	Silica (SiO2) is regarded as one of the most promising anode materials for lithium-ion batteries due to the high theoretical specific capacity and extremely low cost. However, the low intrinsic electrical conductivity and the big volume change during charge/discharge cycles result in a poor electrochemical performance. Here, hollow silica spheres embedded in porous carbon (HSS-C) composites are synthesized and investigated as an anode material for lithium-ion batteries. The HSS-C composites demonstrate a high specific capacity of about 910 mA h g(-1) at a rate of 200 mA g(-1) after 150 cycles and exhibit good rate capability. The porous carbon with a large surface area and void space filled both inside and outside of the hollow silica spheres acts as an excellent conductive layer to enhance the overall conductivity of the electrode, shortens the diffusion path length for the transport of lithium ions, and also buffers the volume change accompanied with lithium-ion insertion/extraction processes.; National Science Foundation (NSF) [DMR-1505902]; National Natural Science Foundation of China [51274015]; China Scholarship Council (CSC); SCI(E); EI; ARTICLE; gzcao@u.washington.edu; 2; 110-117; 33
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/437713]
专题	地球与空间科学学院
推荐引用方式 GB/T 7714	Cao, Xi,Chuan, Xiuyun,Li, Shuang,et al. Hollow Silica Spheres Embedded in a Porous Carbon Matrix and Its Superior Performance as the Anode for Lithium-Ion Batteries[J]. PARTICLE & PARTICLE SYSTEMS CHARACTERIZATION,2016.
APA	Cao, Xi,Chuan, Xiuyun,Li, Shuang,Huang, Dubin,&Cao, Guozhong.(2016).Hollow Silica Spheres Embedded in a Porous Carbon Matrix and Its Superior Performance as the Anode for Lithium-Ion Batteries.PARTICLE & PARTICLE SYSTEMS CHARACTERIZATION.
MLA	Cao, Xi,et al."Hollow Silica Spheres Embedded in a Porous Carbon Matrix and Its Superior Performance as the Anode for Lithium-Ion Batteries".PARTICLE & PARTICLE SYSTEMS CHARACTERIZATION (2016).