A two-dimensional nitrogen-rich carbon/silicon composite as high performance anode material for lithium ion batteries

被引：109

作者：

Mu, Tiansheng ^{[1
]}

Zuo, Pengjian ^{[1
]}

Lou, Shuaifeng ^{[1
]}

Pan, Qingrui ^{[1
]}

Li, Qin ^{[1
]}

Du, Chunyu ^{[1
]}

Gao, Yunzhi ^{[1
]}

Cheng, Xinqun ^{[1
]}

Ma, Yulin ^{[1
]}

Yin, Geping ^{[1
]}

机构：

[1] Harbin Inst Technol, MIIT Key Lab Crit Mat Technol New Energy Convers, Harbin 150001, Heilongjiang, Peoples R China

来源：

CHEMICAL ENGINEERING JOURNAL | 2018年 / 341卷

基金：

中国国家自然科学基金;

关键词：

2D carbon; Rich-nitrogen doping; Silicon anode; Lithium ion battery; LOW-GRADE SOURCES; SI NANOPARTICLES; SCALABLE PRODUCTION; SILICON NANOPARTICLES; SUPERIOR PERFORMANCE; GRAPHENE NANOSHEETS; STORAGE DEVICES; CARBON NANOTUBE; HYBRID; SHELL;

D O I：

10.1016/j.cej.2018.02.026

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The two-dimensional (2D) carbon material shows great superiority in improving the electrochemical performance of silicon-based anode for lithium ion batteries. We synthesize a nitrogen-rich carbon/silicon composite (NRC/Si) with a graphene-like structure by an amino-carboxyl self-assembly of the citric acid, melamine and Si-NH2. The NRC/Si composite with a two-dimensional structure can effectively buffer the volume change of silicon material during cycling. Moreover, the rich-nitrogen doping improves the electronic conductivity and facilitates the charge transfer during charge and discharge process. The NRC/Si as anode material for lithium ion batteries shows good cycle stability and rate capability, delivering a reversible capacity of 1000 mA h g(-1) after 300 cycles at 2 A g(-1) and 572 mA h g(-1) even at 5 A g(-1), respectively. In addition, the synthesis method of the NRC/Si composite is cost-effective, environmentally friendly and industrially scalable, which makes it very promising to obtain the high-performance anode materials in lithium ion batteries.

引用

页码：37 / 46

页数：10

共 65 条

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