Core–shell nano-structured carbon composites based on tannic acid for lithium-ion batteries

Chenbo Liao; Qingkai Xu; Chaolumen Wu; Daling Fang; Shengyang Chen; Shimou Chen; Jiangshui Luo; Lei Li

doi:10.1039/C6TA07359J

Core–shell nano-structured carbon composites based on tannic acid for lithium-ion batteries†

Chenbo Liao,^a Qingkai Xu,^a Chaolumen Wu,^a Daling Fang,^b Shengyang Chen,^a Shimou Chen,*^b Jiangshui Luo^c and Lei Li*^ad

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* Corresponding authors

^a Shanghai Electrochemical Energy Devices Research Center, School of Chemistry and Chemical Engineering, Shanghai Jiaotong University, Shanghai 200240, China
E-mail: lilei0323@sjtu.edu.cn

^b Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
E-mail: chenshimou@ipe.ac.cn

^c Department of Materials Engineering, KU Leuven, Leuven 3001, Belgium

^d Shanghai Key Laboratory of Electrical Insulation and Thermal Aging, School of Chemistry and Chemical Engineering, Shanghai Jiaotong University, Shanghai 200240, China

Abstract

Core–shell nano-structured carbon composites have been used as electrode materials in lithium-ion batteries (LIBs) with increasing attention. The large volume swing during lithiation/delithiation processes and poor electronic conductivity are two key issues in the newly-proposed electrode materials, which severely limit their practical applications in LIBs. In order to solve these problems, we report a facile and versatile method to prepare core–shell nano-structured carbon composites using low cost and widely available tannic acid as the carbon source. The carbon layers with controlled thicknesses of 6–12 nm and 1–3 nm were coated on the surface of Si and TiO₂ nanoparticles, respectively. Due to the carbon layers, both the Si@C and TiO₂@C nanocomposites used as anode materials in LIBs showed excellent electrochemical performances including good cycling stability and high rate capability. We believe that this method may be applicable to various carbon-coating nanocomposites.

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DOI: https://doi.org/10.1039/C6TA07359J
Article type: Paper
Submitted: 26 Aug 2016
Accepted: 04 Oct 2016
First published: 04 Oct 2016

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J. Mater. Chem. A, 2016,4, 17215-17224

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Core–shell nano-structured carbon composites based on tannic acid for lithium-ion batteries

C. Liao, Q. Xu, C. Wu, D. Fang, S. Chen, S. Chen, J. Luo and L. Li, J. Mater. Chem. A, 2016, 4, 17215 DOI: 10.1039/C6TA07359J

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Journal of Materials Chemistry A

Core–shell nano-structured carbon composites based on tannic acid for lithium-ion batteries†

Abstract

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Core–shell nano-structured carbon composites based on tannic acid for lithium-ion batteries

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