Room temperature solvent-free reduction of SiCl₄ to nano-Si for high-performance Li-ion batteries
2017
Liu, Zhiliang | Chang, Xinghua | Sun, Bingxue | Yang, Sungjin | Zheng, Jie | Li, Xingguo
SiCl₄ can be directly reduced to nano-Si with commercial Na metal under solvent-free conditions by mechanical milling. Crystalline nano-Si with an average size of 25 nm and quite uniform size distribution can be obtained, which shows excellent lithium storage performance, for a high reversible capacity of 1600 mA h g⁻¹ after 500 cycles at 2.1 A g⁻¹.
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