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Updated: Sep 24, 2025
Characterization of Electrode Materials for Lithium Ion and Sodium Ion Batteries Using Synchrotron Radiation Techniques
Published on: November 11, 2013
Structure and conductivity enhanced treble-shelled porous silicon as an anode for high-performance lithium-ion
Yangfan Lin1, Hanqing Lin1, Jingwei Jiang1
1State Key Lab of Silicon Materials, School of Materials Science and Engineering, Zhejiang University Hangzhou 310027 People's Republic of China dna1122@zju.edu.cn +86-571-87952322 +86-571-87953190.
Abstract:
Silicon is regarded as the next generation anode material for lithium-ion batteries because of its high specific capacity, low intercalation potential and abundant reserves. However, huge volume changes during the lithiation and delithiation processes and low electrical conductivity obstruct the practical applications of silicon anodes. In this study, a treble-shelled porous silicon (TS-P-Si) structure was synthesized via a three-step approach. The TS-P-Si anode delivered a capacity of 858.94 mA h g-1 and a capacity retention of 87.8% (753.99 mA h g-1) after being subjected to 400 cycles at a current density of 400 mA g-1. The good cycling performance was due to the unique structure of the inner silicon oxide layer, middle silver nano-particle layer and outer carbon layer, leading to a good conductivity and a decreased volume change of this silicon-based anode.
