13October2019

Nano-Micro Letters

Bi2Se3/C Nanocomposite as a New Sodium-Ion Battery Anode Material

Lixin Xie1, Ze Yang1, Jingying Sun1, Haiqing Zhou1, Xiaowei Chi2, Hailong Chen3, Andy X. Li4, Yan Yao2, Shuo Chen1,*

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Nano-Micro Lett. (2018) 10: 50

First Online: 04 April 2018 (Communication)

DOI:10.1007/s40820-018-0201-9

*Corresponding author. E-mail: schen34@uh.edu

 

Abstract

 


Toc

Bi2Se3 was studied as a novel sodium-ion battery anode material because of its high theoretical capacity and high intrinsic conductivity. Integrated with carbon, Bi2Se3/C composite shows excellent cyclic performance and rate capability. For instance, the Bi2Se3/C anode delivers an initial capacity of 527 mAh g−1 at 0.1 A g−1 and maintains 89% of this capacity over 100 cycles. The phase change and sodium storage mechanism are also carefully investigated.


 

Keywords

Bi2Se3; Sodium-ion battery; High-energy ball milling; Sodium storage mechanism

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