Cu3Si@Si core-shell nanoparticles synthesized using a solid-state reaction and their performance as anode materials for lithium ion batteries

Jianbin Zhou; Ning Lin; Ying Han; Jie Zhou; Yongchun Zhu; Jin Du; Yitai Qian

doi:10.1039/c5nr04456a

Cu3Si@Si core-shell nanoparticles synthesized using a solid-state reaction and their performance as anode materials for lithium ion batteries

Nanoscale. 2015 Oct 7;7(37):15075-9. doi: 10.1039/c5nr04456a.

Authors

Jianbin Zhou¹, Ning Lin, Ying Han, Jie Zhou, Yongchun Zhu, Jin Du, Yitai Qian

Affiliation

¹ Hefei National Laboratory for Physical Science at Microscale, University of Science and Technology of China, Hefei, 230026, P.R. China. ychzhu@ustc.edu.cn ytqian@ustc.edu.cn.

PMID: 26349812
DOI: 10.1039/c5nr04456a

Abstract

Cu3Si@Si core-shell nanoparticles with a Si shell coated over the Cu3Si core are synthesized by a solid-state reaction between CuCl and Si. The evaluation process of the core-shell structure shows a mechanism analogous to the Kirkendall effect. As anode materials for lithium ion batteries, Cu3Si@Si core-shell nanoparticles retained a capacity of 903.6 mA h g(-1) at the current density of 2 A g(-1) over 400 cycles.

Publication types

Research Support, Non-U.S. Gov't