Volume 127, Issue 5 pp. 1510-1513
Zuschrift

A Hierarchical Tin/Carbon Composite as an Anode for Lithium-Ion Batteries with a Long Cycle Life

Dr. Xingkang Huang

Dr. Xingkang Huang

Department of Mechanical Engineering, University of Wisconsin-Milwaukee, 3200 North Cramer Street, Milwaukee, WI 53211 (USA)

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Dr. Shumao Cui

Dr. Shumao Cui

Department of Mechanical Engineering, University of Wisconsin-Milwaukee, 3200 North Cramer Street, Milwaukee, WI 53211 (USA)

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Dr. Jingbo Chang

Dr. Jingbo Chang

Department of Mechanical Engineering, University of Wisconsin-Milwaukee, 3200 North Cramer Street, Milwaukee, WI 53211 (USA)

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Peter B. Hallac

Peter B. Hallac

Global Technology & Innovation, Power Solutions, Johnson Controls, 5757 North Green Bay Avenue, Milwaukee, WI 53209 (USA)

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Christopher R. Fell

Christopher R. Fell

Global Technology & Innovation, Power Solutions, Johnson Controls, 5757 North Green Bay Avenue, Milwaukee, WI 53209 (USA)

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Yanting Luo

Yanting Luo

Global Technology & Innovation, Power Solutions, Johnson Controls, 5757 North Green Bay Avenue, Milwaukee, WI 53209 (USA)

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Bernhard Metz

Bernhard Metz

Global Technology & Innovation, Power Solutions, Johnson Controls, 5757 North Green Bay Avenue, Milwaukee, WI 53209 (USA)

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Junwei Jiang

Junwei Jiang

Global Technology & Innovation, Power Solutions, Johnson Controls, 5757 North Green Bay Avenue, Milwaukee, WI 53209 (USA)

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Patrick T. Hurley

Patrick T. Hurley

Global Technology & Innovation, Power Solutions, Johnson Controls, 5757 North Green Bay Avenue, Milwaukee, WI 53209 (USA)

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Prof. Junhong Chen

Corresponding Author

Prof. Junhong Chen

Department of Mechanical Engineering, University of Wisconsin-Milwaukee, 3200 North Cramer Street, Milwaukee, WI 53211 (USA)

Department of Mechanical Engineering, University of Wisconsin-Milwaukee, 3200 North Cramer Street, Milwaukee, WI 53211 (USA)Search for more papers by this author
First published: 10 December 2014
Citations: 36

Financial support for this work was provided by the U.S. Department of Energy (grant number DE-EE0003208) and Johnson Controls, Inc. The SEM imaging was conducted at the UWM Bioscience Electron Microscope Facility, and TEM analyses were conducted in the UWM Physics HRTEM Laboratory. The authors thank Dr. H. A. Owen, Dr. S. E. Hardcastle, and D. P. Robertson for their technical support with SEM, BET and Raman, and TEM analysis, respectively.

Abstract

Tin is a promising anode candidate for next-generation lithium-ion batteries with a high energy density, but suffers from the huge volume change (ca. 260 %) upon lithiation. To address this issue, here we report a new hierarchical tin/carbon composite in which some of the nanosized Sn particles are anchored on the tips of carbon nanotubes (CNTs) that are rooted on the exterior surfaces of micro-sized hollow carbon cubes while other Sn nanoparticles are encapsulated in hollow carbon cubes. Such a hierarchical structure possesses a robust framework with rich voids, which allows Sn to alleviate its mechanical strain without forming cracks and pulverization upon lithiation/de-lithiation. As a result, the Sn/C composite exhibits an excellent cyclic performance, namely, retaining a capacity of 537 mAh g−1 for around 1000 cycles without obvious decay at a high current density of 3000 mA g−1.

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