Controllable synthesis of hollow copper oxide encapsulated into N-doped carbon nanosheets as high-stability anodes for lithium-ion batteries

doi:10.1039/c7ta08236c

	Controllable synthesis of hollow copper oxide encapsulated into N-doped carbon nanosheets as high-stability anodes for lithium-ion batteries
	Tan, Yingbin 1; Jia, Zhiqing 1,2; Sun, Jiyang 1,2; Wang, Yongzhe 1; Cui, Zhonghui 1; Guo, Xiangxin 1
刊名	Journal of Materials Chemistry A
	2017
卷号	5 期号:46 页码:24139-24144
ISSN号	20507488
DOI	10.1039/c7ta08236c
英文摘要	Copper oxide is one of the promising anode materials for lithium-ion batteries (LIBs) due to its high energy density. However, it suffers from fast capacity fading and poor cycling stability, arising from the low electrical conductivity and the large volume expansion. Herein, we report a chemical vapor and solid deposition strategy for the synthesis of hollow copper nanoparticles supported by N-doped carbon nanosheets (Cu@NCSs) on Cu foil, adopting a polymer as the carbon source. After successive oxidation treatment, the construction of hollow copper oxide encapsulated into N-doped carbon nanosheets (CuO@NCSs) is achieved. The resulting products are used as anodes in LIBs, displaying a capacity of 688 mA h g-1over 1000 cycles at 2 A g-1and a capacity of 400 mA h g-1at 4 A g-1. Such superior performance is attributed to the well-designed hollow CuO@NCS composites, which not only improve the electrical conductivity of electrode materials, but also allow easy penetration of electrolyte and mitigation of the volume expansion. © The Royal Society of Chemistry 2017.
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/25698]
专题	中国科学院上海硅酸盐研究所
作者单位	1.State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai; 200050, China; 2.University of Chinese Academy of Sciences, Beijing; 100039, China
推荐引用方式 GB/T 7714	Tan, Yingbin,Jia, Zhiqing,Sun, Jiyang,et al. Controllable synthesis of hollow copper oxide encapsulated into N-doped carbon nanosheets as high-stability anodes for lithium-ion batteries[J]. Journal of Materials Chemistry A,2017,5(46):24139-24144.
APA	Tan, Yingbin,Jia, Zhiqing,Sun, Jiyang,Wang, Yongzhe,Cui, Zhonghui,&Guo, Xiangxin.(2017).Controllable synthesis of hollow copper oxide encapsulated into N-doped carbon nanosheets as high-stability anodes for lithium-ion batteries.Journal of Materials Chemistry A,5(46),24139-24144.
MLA	Tan, Yingbin,et al."Controllable synthesis of hollow copper oxide encapsulated into N-doped carbon nanosheets as high-stability anodes for lithium-ion batteries".Journal of Materials Chemistry A 5.46(2017):24139-24144.