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Updated: Mar 2, 2026

Characterization of Electrode Materials for Lithium Ion and Sodium Ion Batteries Using Synchrotron Radiation Techniques
Published on: November 11, 2013
A critical SiOx layer on Si porous structures to construct highly-reversible anode materials for lithium-ion
Yifan Chen1, Yangfan Lin, Ning Du
1State Key Laboratory of Silicon Materials, School of Materials Science & Engineering, Cyrus Tang Center for Sensor Materials and Applications Zhejiang University, Hangzhou, Zhejiang 310027, People's Republic of China. msezhanghui@zju.edu.cn.
Abstract:
A novel Si/SiOx porous structure with a SiOx coating layer of varying thicknesses was prepared via a simple annealing and acid washing process. When used as an anode material for lithium-ion batteries, the Si/SiOx porous structure with an ∼9 nm SiOx coating layer demonstrates significantly improved electrochemical performance with a high reversible discharge capacity of over 915 mA h g-1 after 500 long cycles at 1 A g-1. The lithiation mechanism of a SiOx layer of different thicknesses has also been investigated.

