High-rate amorphous SnO2 nanomembrane anodes for Li-ion batteries with a long cycling life

Xianghong Liu; Jun Zhang; Wenping Si; Lixia Xi; Steffen Oswald; Chenglin Yan; Oliver G. Schmidt

doi:10.1039/C4NR04903A

High-rate amorphous SnO₂ nanomembrane anodes for Li-ion batteries with a long cycling life†

Xianghong Liu,*^a Jun Zhang,^b Wenping Si,^ac Lixia Xi,^d Steffen Oswald,^d Chenglin Yan*^ae and Oliver G. Schmidt^ac

* Corresponding authors

^a Institute for Integrative Nanosciences, IFW-Dresden, Helmholtzstrasse 20, 01069 Dresden, Germany
E-mail: xianghong.liu@ifw-dresden.de
Fax: +49 351 4659 782

^b School of Materials Science and Engineering, University of Jinan, Jinan 250022, China

^c Material Systems for Nanoelectronics, Chemnitz University of Technology, Reichenhainerstrasse 70, 09107 Chemnitz, Germany

^d Institute for Complex Materials, IFW-Dresden, Helmholtzstrasse 20, 01069 Dresden, Germany

^e School of Energy, Soochow University, 215006 Suzhou, Jiangsu, China
E-mail: c.yan@suda.edu.cn

Abstract

Amorphous SnO₂ nanomembranes as anodes for lithium ion batteries demonstrate a long cycling life of 1000 cycles at 1600 mA g⁻¹ with a high reversible capacity of 854 mA h g⁻¹ and high rate capability up to 40 A g⁻¹. The superior performance is because of the structural features of the amorphous SnO₂ nanomembranes. The nanoscale thickness provides considerably reduced diffusion paths for Li⁺. The amorphous structure can accommodate the strain of lithiation/delithiation, especially during the initial lithiation. More importantly, the mechanical feature of deformation can buffer the strain of repeated lithiation/delithiation, thus putting off pulverization. In addition, the two-dimensional transport pathways in between nanomembranes make the pseudo-capacitance more prominent. The encouraging results demonstrate the significant potential of nanomembranes for high power batteries.

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Article information

DOI: https://doi.org/10.1039/C4NR04903A
Article type: Paper
Submitted: 24 Aug 2014
Accepted: 29 Oct 2014
First published: 03 Nov 2014
This article is Open Access

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Nanoscale, 2015,7, 282-288

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High-rate amorphous SnO₂ nanomembrane anodes for Li-ion batteries with a long cycling life

X. Liu, J. Zhang, W. Si, L. Xi, S. Oswald, C. Yan and O. G. Schmidt, Nanoscale, 2015, 7, 282 DOI: 10.1039/C4NR04903A

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