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One-Step Fabrication of Fe-Si-O/Carbon Nanotube Composite Anode Material with Excellent High-Rate Long-Term Cycling Stability

Published online by Cambridge University Press:  26 January 2017

Yun-Kai Sun ,
Xue Bai ,
Tao Li ,
Gui-Xia Lu ,
Yong-Xin Qi ,
Ning Lun ,
Yun Tian  and
Yu-Jun Bai
Yun-Kai Sun*
Affiliation:
Key Laboratory for Liquid−Solid Structural Evolution and Processing of Materials (Ministry of Education), Shandong University, Jinan 250061, PR China
Xue Bai*
Affiliation:
Key Laboratory for Liquid−Solid Structural Evolution and Processing of Materials (Ministry of Education), Shandong University, Jinan 250061, PR China
Tao Li
Affiliation:
Key Laboratory for Liquid−Solid Structural Evolution and Processing of Materials (Ministry of Education), Shandong University, Jinan 250061, PR China
Gui-Xia Lu
Affiliation:
Key Laboratory for Liquid−Solid Structural Evolution and Processing of Materials (Ministry of Education), Shandong University, Jinan 250061, PR China
Yong-Xin Qi
Affiliation:
Key Laboratory for Liquid−Solid Structural Evolution and Processing of Materials (Ministry of Education), Shandong University, Jinan 250061, PR China
Ning Lun
Affiliation:
Key Laboratory for Liquid−Solid Structural Evolution and Processing of Materials (Ministry of Education), Shandong University, Jinan 250061, PR China
Yun Tian*
Affiliation:
Key Laboratory for Liquid−Solid Structural Evolution and Processing of Materials (Ministry of Education), Shandong University, Jinan 250061, PR China
Yu-Jun Bai*
Affiliation:
Key Laboratory for Liquid−Solid Structural Evolution and Processing of Materials (Ministry of Education), Shandong University, Jinan 250061, PR China
*
† Presenter E-mail: [email protected] (Y.-K. Sun)
*E-mail: [email protected] (Y.-J. Bai), [email protected] (Y. Tian)
*E-mail: [email protected] (Y.-J. Bai), [email protected] (Y. Tian)
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Abstract

The composite Li-ion battery anode material of Fe2SiO4, Fe3O4, Fe3C (Fe-Si-O) and carbon nanotubes was prepared by a simple one-step reaction between ferrocene and tetraethyl orthosilicate. When cycled at 100 mA g-1, this material exhibited ever-increasing capacities and reached 588 mAh g-1 at the 280th cycle. At 500 mA g-1, a reversible capacity of 350 mAh g-1 was retained for 600 cycles. Compared with Fe3O4 materials, the Fe-Si-O/CNT exhibited superior long-term high-rate performance, which could mainly result from its enhanced stability and conductivities by introducing silicates and CNTs during the one-step synthesis.

Keywords

energy storageoxideLi
Type
Articles
Information
MRS Advances , Volume 2 , Issue 21-22: Energy and Sustainability , 2017 , pp. 1157 - 1163
Copyright
Copyright © Materials Research Society 2017 

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References

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