Electrospun Sb2Se3@C nanofibers with excellent lithium storage properties

Sb2Se3@C nanofibers are obtained by electrospinning method. When tested as the anode for lithium-ion batteries, the Sb2Se3@C nanofibers annealed at 600 °C delivers a remarkably good cycling performance of 625 mAh/g at 100 mA/g after 100 cycles. [Display omitted] Antimony-based materials have become...

Full description

Saved in:
Bibliographic Details
Published in:Chinese chemical letters 2020-03, Vol.31 (3), p.909-914
Main Authors: Dong, Yan, Feng, Yuezhan, Deng, Jiwei, He, Pengbin, Ma, Jianmin
Format: Article
Language:English
Subjects:
Anode
Electrospinning
Li-ion battery
Nanofibers
Sb2Se3
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Sb2Se3@C nanofibers are obtained by electrospinning method. When tested as the anode for lithium-ion batteries, the Sb2Se3@C nanofibers annealed at 600 °C delivers a remarkably good cycling performance of 625 mAh/g at 100 mA/g after 100 cycles. [Display omitted] Antimony-based materials have become promising anodes within lithium-ion batteries (LIBs) due to their low cost and the high theoretical capacity. However, there is a potential to further enhance the electrochemical performance of such antimony-based materials. Herein, Sb2Se3@C nanofibers (Sb2Se3@CNFs) are designed and obtained via a novel electrospinning method. Upon electrochemically testing as an anode within LIBs, the Sb2Se3@CNFs (annealed at 600 °C) delivers a remarkably good cycling performance of 625 mAh/g at 100 mA/g after 100 cycles. Moreover, it still remains at 490 mAh/g after 500 cycles with an applied current density of 1.0 A/g. The excellent performance of the Sb2Se3@CNFs can be attributed to the fact that the N-doped C matrices not only remit the volume expansion of materials, but also enhance the electrical and ionic conductivity thusly increasing the lithium-ion diffusion. The obtained Sb2Se3@CNFs are promising anode for LIBs in the future.
ISSN:1001-8417
1878-5964
DOI:10.1016/j.cclet.2019.11.039