The Effect of Ge on the Electrochemical Performance of Sn/C Nanocomposite Anode Materials for Lithium Ion Batteries

Abstract:

nanosized Sn-Ge/C composite powders were successfully prepared by rocking vibratory ball milling method, and characterized with X-ray powder diffraction and laser particle size analysis method. The electrochemical performance of the nanocomposite anodes was investigated by charge-discharge tests. The results show that Ge exhibits as the elemental form in the nanocomposites. The capacity of nanocomposite anodes can be enhanced by the introduction of micro-sized Ge powders. The Sn₉₀Ge₁₀/C nanocomposite anodes deliver the optimum electrochemical performance, including discharge capacity and cycling stability. However, the relatively fast capacity fade of the nanocompsoite anodes need to be further improved.

• Periodical: Advanced Materials Research (Volume 1094)
• Pages: 229-233
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1094.229
• Online since: March 2015
• Authors: Jian Qiu Deng*, Jin Pan, Tian Chen, Hai Qing Qin, Wen Ping Liu, Qing Rong Yao, Zhong Min Wang, Huai Ying Zhou
• Keywords: Anode, Electrochemical Performance, Lithium Ion Batteries, Sn-C Nanocomposite

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