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ACS Appl Mater Interfaces. 2017 Jul 19;9(28):23723-23730. doi: 10.1021/acsami.7b05057. Epub 2017 Jul 3.

Graphene Decorated by Indium Sulfide Nanoparticles as High-Performance Anode for Sodium-Ion Batteries.

Author information

1
Department of Energy Engineering, Hanyang University , Seoul 133-791, South Korea.
2
Department of Nanotechnology and Advanced Materials Engineering & Sejong Battery Institute, Sejong University , Seoul 05006, South Korea.
3
Department of Chemical and Pharmaceutical Sciences, University of Ferrara , Via Fossato di Mortara 44121, Ferrara, Italy.

Abstract

We report a highly performing anode material for sodium-ion batteries (SIBs) composed of graphene decorated by indium sulfide (In2S3). The composite is synthesized by a facile hydrothermal pathway with subsequent annealing and is characterized by defined structure and well-tailored morphology, as is indeed demonstrated by X-ray diffraction and spectroscopy as well as high-resolution microscopy. These optimal characteristics allow the electrode to perform remarkably in sodium cell by achieving a maximum specific capacity as high as 620 mAh g-1 and the still-relevant value of 335 mAh g-1 at an extremely high current (i.e., 5 A g-1). The high storage capacity, the long cycle life, and the impressive rate capability of the composite may be attributed to the synergetic effect between uniform In2S3 nanoparticles and the graphene matrix. These features suggest that the In2S3-graphene is a viable choice for application as an anode material in high-performance SIBs.

KEYWORDS:

In2S3; SIBs; anode; graphene; nanocomposite

PMID:
28627876
DOI:
10.1021/acsami.7b05057

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