Superior cycle stability of nitrogen-doped graphene nanosheets as anodes for lithium ion batteries

被引：342

作者：

Li, Xifei ^{[1
]}

Geng, Dongsheng ^{[1
]}

Zhang, Yong ^{[1
]}

Meng, Xiangbo ^{[1
]}

Li, Ruying ^{[1
]}

Sun, Xueliang ^{[1
]}

机构：

[1] Univ Western Ontario, Dept Mech & Mat Engn, Nanomat & Energy Lab, London, ON N6A 5B9, Canada

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2011年 / 13卷 / 08期

基金：

加拿大自然科学与工程研究理事会;

关键词：

Graphene; Nitrogen doping; Anode; Cycle stability; Lithium ion batteries; CARBON NANOTUBE BUNDLES; STORAGE; CAPACITY; ENERGY; REDUCTION;

D O I：

10.1016/j.elecom.2011.05.012

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The specific capacity of nitrogen-doped graphene nanosheet (N-GNS) evidently increases with charge/discharge cycles, exhibiting superior electrochemical performance. N-GNS presented a specific capacity of 684 mAh g(-1) in the 501st cycles while only 452 mAh g(-1) in the 100th cycle, accounting for higher cycling stability and larger specific capacity in comparison to a pristine graphene and a commercialized graphite anode. The obtained significant improvement is attributed to the incorporated nitrogen to graphene planes with a result of more structural defects during cycling. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：822 / 825

页数：4

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