Fabrication of Ta2O5@C/F composite nanotubes as stable anode material for Lithium-ion batteries

被引：10
|
作者：
Wang, Shun [1 ]
Yao, Tairan [2 ]
Li, Baozong [1 ]
Li, Yi [1 ]
Yang, Yonggang [1 ]
机构：
[1] Soochow Univ, Coll Chem Chem Engn & Mat Sci, Dept Polymer Sci & Engn, Jiangsu Key Lab Adv Funct Polymer Design & Applic, Suzhou 215123, Peoples R China
[2] Tianjin Univ, Dept Chem Engn, Renai Coll, Tianjin, Peoples R China
来源：
MATERIALS LETTERS | 2020年 / 267卷
基金：
中国国家自然科学基金;
关键词：
Sol-gel preparation; Helical nanotubes; Composite materials; Lithium ion battery; NANOPARTICLES;
D O I：
10.1016/j.matlet.2020.127545
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this paper, helical mesoporous Ta2O5 nanotubes and Ta2O5/fluorine-doped carbon composite nanotubes (Ta2O5@C/F) (similar to 9 wt% of C and similar to 4 wt% of F) were prepared via a sol-gel method, using a chiral gelator as the template. Electrochemical studies showed that, the Ta2O5 nanotubes electrode and Ta2O5@C/F nanotubes electrode both possessed good Li-storage capability and cycling stability. The reversible capacity of Ta2O5@C/F was higher than that of Ta2O5, while the impedance of Ta2O5@C/F was lower than that of Ta2O5. These results indicated that the coating of fluorine-doped carbon layer could effectively improve the electrochemical performance of transition metal oxide anodes. (C) 2020 Elsevier B.V. All rights reserved.
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页数：4
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