SnS/C nanocomposites for high-performance sodium ion battery anodes

Sodium-ion batteries have been considered as one of the most promising types of batteries, beyond lithium-ion batteries, for large-scale energy storage applications. However, their deployment hinges on the development of new anode materials, since it has been shown that many important anode material...

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Bibliographic Details
Published in:RSC advances 2018-01, Vol.8 (42), p.23847-23853
Main Authors: Yu, Seung-Ho, Jin, Aihua, Huang, Xin, Yang, Yao, Huang, Rong, Brock, Joel D, Sung, Yung-Eun, Abruña, Héctor D
Format: Article
Language:English
Subjects:
Anodes
Chemistry
Electrochemical analysis
Electrode materials
Energy storage
Lithium
Lithium-ion batteries
Nanocomposites
Reaction mechanisms
Rechargeable batteries
Sodium
Sodium-ion batteries
Storage batteries
Transmission electron microscopy
X-ray diffraction
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Summary:Sodium-ion batteries have been considered as one of the most promising types of batteries, beyond lithium-ion batteries, for large-scale energy storage applications. However, their deployment hinges on the development of new anode materials, since it has been shown that many important anode materials employed in lithium ion batteries, such as graphite and silicon, are inadequate for sodium-ion batteries. We have simply prepared novel SnS/C nanocomposites through a top-down approach as anode materials for sodium-ion batteries. Their electrochemical performance has been significantly improved when compared to bare SnS, especially in terms of cycling stability and rate capabilities. SnS/C nanocomposites exhibit excellent capacity retention, at various current rates, and deliver capacities as high as 400 mA h g even at the high current density of 800 mA g (2C). transmission electron microscopy, X-ray diffraction and X-ray absorption near edge structure studies have been performed in order to unravel the reaction mechanism of the SnS/C nanocomposites.
ISSN:2046-2069
2046-2069
DOI:10.1039/c8ra04421j