Electrospun carbon nanofibers as anode materials for sodium ion batteries with excellent cycle performance

被引：286

作者：

Chen, Taiqiang ^{[1
]}

Liu, Yong ^{[1
]}

Pan, Likun ^{[1
]}

Lu, Ting ^{[1
]}

Yao, Yefeng ^{[1
]}

Sun, Zhuo ^{[1
]}

Chua, Daniel H. C. ^{[2
]}

Chen, Qun ^{[1
]}

机构：

[1] E China Normal Univ, Engn Res Ctr Nanophoton & Adv Instrument, Dept Phys, Shanghai Key Lab Magnet Resonance,Minist Educ, Shanghai 200062, Peoples R China

[2] Natl Univ Singapore, Dept Mat Sci & Engn, Singapore 117574, Singapore

来源：

JOURNAL OF MATERIALS CHEMISTRY A | 2014年 / 2卷 / 12期

基金：

中国国家自然科学基金;

关键词：

REDUCED GRAPHENE OXIDE; LITHIUM-ION; RATE CAPABILITY; ENERGY-STORAGE; ELECTROCHEMICAL INSERTION; NEGATIVE ELECTRODES; ASSISTED SYNTHESIS; CATHODE MATERIAL; HARD CARBONS; LOW-COST;

D O I：

10.1039/c3ta14806h

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A simple and scalable electrospinning process followed by thermal treatment was used to fabricate carbon nanofibers (CFs). The as-prepared CFs were investigated as anode materials for sodium ion batteries (SIBs). Remarkably, due to their weakly ordered turbostratic structure and a large interlayer spacing between graphene sheets, the CFs exhibit a dominant adsorption/insertion sodium storage mechanism that shows high reversibility. As a result, the CFs show excellent electrochemical performance, especially cycle stability (97.7% capacity retention ratio over 200 cycles). Reversible capacities of 233 and 82 mA h g(-1) are obtained for the CFs at a current density of 0.05 A g(-1) and even a high current density of 2 A g(-1), respectively. The excellent cycle performance, high capacity and good rate capability make the CFs promising candidates for practical SIBs.

引用

页码：4117 / 4121

页数：5

共 46 条

[1] Carbon microspheres obtained from resorcinol-formaldehyde as high-capacity electrodes for sodium-ion batteries [J].