Carbon coated SnO2 nanoparticles anchored on CNT as a superior anode material for lithium-ion batteries

Chunrong Ma; Weimin Zhang; Yu-Shi He; Qiang Gong; Haiying Che; Zi-Feng Ma

doi:10.1039/C5NR07996A

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Carbon coated SnO₂ nanoparticles anchored on CNT as a superior anode material for lithium-ion batteries†

Chunrong Ma,^a Weimin Zhang,*^ab Yu-Shi He,

^a Qiang Gong,^c Haiying Che^ab and Zi-Feng Ma*^ab

Author affiliations

* Corresponding authors

^a Shanghai Electrochemical Energy Devices Research Centre, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai, China
E-mail: wm_zhang@sjtu.edu.cn, zfma@sjtu.edu.cn

^b Sinopoly Battery Research Centre, Shanghai, China

^c School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China

Abstract

Hierarchically structured carbon coated SnO₂ nanoparticles well-anchored on the surface of a CNT (C–SnO₂/CNT) material were synthesized by a facile hydrothermal process and subsequent carbonization. The as-obtained C–SnO₂/CNT hybrid, when applied as an anode material for lithium ion batteries (LIBs), showed a high reversible capacity up to 1572 mA h g⁻¹ at 200 mA g⁻¹ with a superior rate capability (685 mA h g⁻¹ at 4000 mA g⁻¹). Even after 100 charge/discharge cycles at 1000 mA g⁻¹, a specific capacity of 1100 mA h g⁻¹ can still be maintained. Such impressive electrochemical performance can be mainly attributed to the hierarchical sandwiched structure and strong synergistic effects of the ultrafine SnO₂ nanoparticles and the carbon coating, and thus presents this material a promising anode material for LIBs.

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Article information

DOI: https://doi.org/10.1039/C5NR07996A
Article type: Paper
Submitted: 12 Nov 2015
Accepted: 16 Jan 2016
First published: 18 Jan 2016

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Nanoscale, 2016,8, 4121-4126

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Carbon coated SnO₂ nanoparticles anchored on CNT as a superior anode material for lithium-ion batteries

C. Ma, W. Zhang, Y. He, Q. Gong, H. Che and Z. Ma, Nanoscale, 2016, 8, 4121 DOI: 10.1039/C5NR07996A

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