Issue 45, 2019

Hollow carbon nanofibers as high-performance anode materials for sodium-ion batteries

Abstract

Hollow carbon nanofibers (HCNFs) are successfully fabricated by pyrolyzation of a polyaniline hollow nanofiber precursor. The as-prepared HCNFs as sodium storage anode materials exhibit a high reversible charge capacity of 326 mA h g−1 at 20 mA g−1, high rate capability (85 mA h g−1 at 1.6 A g−1) and superior cycling stability (a capacity retention of 70% even after 5000 cycles at 1.6 A g−1). Such a high performance of HCNFs can be ascribed to the special hollow structure characteristics; they possess a well fabricated electronic transport path and can shorten the ion diffusion distance. Therefore, the HCNFs can be regarded as promising anode materials for advanced sodium ion batteries (SIBs).

Graphical abstract: Hollow carbon nanofibers as high-performance anode materials for sodium-ion batteries

Supplementary files

Article information

Article type
Paper
Submitted
05 Sep 2019
Accepted
15 Oct 2019
First published
15 Oct 2019

Nanoscale, 2019,11, 21999-22005

Hollow carbon nanofibers as high-performance anode materials for sodium-ion batteries

H. Han, X. Chen, J. Qian, F. Zhong, X. Feng, W. Chen, X. Ai, H. Yang and Y. Cao, Nanoscale, 2019, 11, 21999 DOI: 10.1039/C9NR07675A

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