Issue 1, 2017

Greigite Fe3S4 as a new anode material for high-performance sodium-ion batteries

Abstract

Transition metal dichalcogenide materials have been considered as promising anode materials for rechargeable sodium-ion batteries because of their high specific capacity and low cost. Here, we demonstrate an iron sulfide Fe3S4 as a new anode material for a rechargeable sodium-ion battery. The involved conversion mechanism has been proved when the as-prepared Fe3S4 was used as the host material for sodium storage. Remarkably, a compound FeSx with quantum size generated by conversion reaction overcame the kinetic and thermodynamic constraints of chemical conversion to achieve superior cycling and rate capability. As a result, the as-prepared Fe3S4 electrode delivers a high reversible specific capacity of 548 mA h g−1 at 0.2 A g−1, together with an excellent cycling stability of 275 mA h g−1 after 3500 cycles at 20 A g−1.

Graphical abstract: Greigite Fe3S4 as a new anode material for high-performance sodium-ion batteries

Supplementary files

Article information

Article type
Edge Article
Submitted
21 Jun 2016
Accepted
31 Jul 2016
First published
01 Aug 2016
This article is Open Access

All publication charges for this article have been paid for by the Royal Society of Chemistry
Creative Commons BY license

Chem. Sci., 2017,8, 160-164

Greigite Fe3S4 as a new anode material for high-performance sodium-ion batteries

Q. Li, Q. Wei, W. Zuo, L. Huang, W. Luo, Q. An, V. O. Pelenovich, L. Mai and Q. Zhang, Chem. Sci., 2017, 8, 160 DOI: 10.1039/C6SC02716D

This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. You can use material from this article in other publications without requesting further permissions from the RSC, provided that the correct acknowledgement is given.

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