Carbon-coated SnO2 riveted on a reduced graphene oxide composite (C@SnO2/RGO) as an anode material for lithium-ion batteries

Yao Dai; Fu Li; Yuan-Xiang Fu; Dong-Chuan Mo; Shu-Shen Lyu

doi:10.1039/D0RA10912F

Carbon-coated SnO₂ riveted on a reduced graphene oxide composite (C@SnO₂/RGO) as an anode material for lithium-ion batteries†

Yao Dai,^ae Fu Li,^de Yuan-Xiang Fu,^be Dong-Chuan Mo

^ce and Shu-Shen Lyu*^ce

Author affiliations

* Corresponding authors

^a School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou 510275, P. R. China
E-mail: lvshsh@mail.sysu.edu.cn

^b School of Chemical Engineering & Guizhou Provincial Key Laboratory of Energy Chemistry, Guizhou Institute of Technology, Guiyang, PR China

^c School of Materials, Sun Yat-sen University, Guangzhou 510275, P. R. China

^d School of Chemical Engineering and Technology, Sun Yat-sen University, Guangzhou, China

^e Guangdong Engineering Technology Research Centre for Advanced Thermal Control Material and System Integration (ATCMSI), Sun Yat-sen University, Guangzhou, P. R. China

Abstract

The research on graphene-based anode materials for high-performance lithium-ion batteries (LIBs) has been prevalent in recent years. In the present work, carbon-coated SnO₂ riveted on a reduced graphene oxide sheet composite (C@SnO₂/RGO) was fabricated using GO solution, SnCl₄, and glucose via a hydrothermal method after heat treatment. When the composite was exploited as an anode material for LIBs, the electrodes were found to exhibit a stable reversible discharge capacity of 843 mA h g⁻¹ at 100 mA g⁻¹ after 100 cycles with 99.5% coulombic efficiency (CE), and a specific capacity of 485 mA h g⁻¹ at 1000 mA g⁻¹ after 200 cycles; these values were higher than those for a sample without glucose (SnO₂/RGO) and a pure SnO₂ sample. The favourable electrochemical performances of the C@SnO₂/RGO electrodes may be attributed to the special double-carbon structure of the composite, which can effectively suppress the volume expansion of SnO₂ nanoparticles and facilitate the transfer rates of Li⁺ and electrons during the charge/discharge process.

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Article information

DOI: https://doi.org/10.1039/D0RA10912F
Article type: Paper
Submitted: 29 Dec 2020
Accepted: 23 Jan 2021
First published: 24 Feb 2021
This article is Open Access

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RSC Adv., 2021,11, 8521-8529

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Carbon-coated SnO₂ riveted on a reduced graphene oxide composite (C@SnO₂/RGO) as an anode material for lithium-ion batteries

Y. Dai, F. Li, Y. Fu, D. Mo and S. Lyu, RSC Adv., 2021, 11, 8521 DOI: 10.1039/D0RA10912F

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