Formation of a stable carbon framework in a MnO yolk–shell sphere to achieve exceptional performance for a Li-ion battery anode

Shengbin Wang; Changlei Xiao; Yalan Xing; Huaizhe Xu; Shichao Zhang

doi:10.1039/C5TA03787E

Formation of a stable carbon framework in a MnO yolk–shell sphere to achieve exceptional performance for a Li-ion battery anode

Shengbin Wang,^a Changlei Xiao,^a Yalan Xing,^a Huaizhe Xu^b and Shichao Zhang*^a

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* Corresponding authors

^a School of Materials Science and Engineering, Beihang University, Beijing 100191, PR China
E-mail: csc@buaa.edu.cn
Fax: +86 01082338148
Tel: +86 01082339319

^b Department of Physics, Beihang University, PR China

Abstract

A 3D carbon framework has been introduced into a MnO yolk–shell structure, which functions as an electrical highway and a mechanical framework that improves the reaction kinetics, prevents MnO from fracturing and agglomerating, and limits most SEI formation to the carbon surface instead of on the MnO–electrolyte interface. As a result of this arrangement, the sample demonstrates a maximum reversible specific capacity of 1040 mA h g⁻¹ at rate of 0.2 A g⁻¹ with a long cycle life (without any decrease after 500 cycles), and an outstanding charge/discharge rate capability (513 mA h g⁻¹ at 4 A g⁻¹).

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Publication details

The article was received on 25 May 2015, accepted on 19 Jun 2015 and first published on 23 Jun 2015

Article type: Paper

DOI: 10.1039/C5TA03787E

Citation: J. Mater. Chem. A, 2015,3, 15591-15597

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Formation of a stable carbon framework in a MnO yolk–shell sphere to achieve exceptional performance for a Li-ion battery anode

S. Wang, C. Xiao, Y. Xing, H. Xu and S. Zhang, J. Mater. Chem. A, 2015, 3, 15591
DOI: 10.1039/C5TA03787E
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Journal of Materials Chemistry A

Formation of a stable carbon framework in a MnO yolk–shell sphere to achieve exceptional performance for a Li-ion battery anode

Abstract

Supplementary files

Publication details

Formation of a stable carbon framework in a MnO yolk–shell sphere to achieve exceptional performance for a Li-ion battery anode

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