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.

中文翻译：

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用于高性能锂离子电池的室温下无​​溶剂的SiCl ₄还原为纳米Si

在无溶剂条件下，通过机械研磨，可以用市售的Na金属将SiCl ₄直接还原为纳米Si。在2.1 A g ^-1下经过500次循环后，具有1600 mA hg ^-1的高可逆容量，可以获得平均粒径为25 nm且具有相当均匀的尺寸分布的晶体纳米硅，该晶体显示出优异的锂存储性能。