硅基锂离子电池负极材料研究进展

Review on Silicon-Based Anode Materials for Lithium-Ion Battery

作为锂离子电池负极材料,硅基材料具有较高的理论比容量、适中的嵌/脱锂电位、与电解液反应活性低等特点,成为最有前景的锂离子电池负极材料之一。然而由于其巨大的体积效应和较低的导电性导致其商业化应用具有相当的挑战性。本文综述了近年来为改善硅基材料的缺点而做的一些研究,展望了硅基材料作为锂离子电池负极材料的发展趋势。

Silicon, one of the most promising high-capacity anode materials of lithium ion batteries, has high theoretical specific capacity, moderate insertion/removal potential for lithium and low reactivity with electrolyte. However, it suffers from the huge volume effect, which leads to its poor electrochemical performance. In the present paper, some investigations and the preparation methods about overcoming the shortcomings of silicon based materials in recent years are reviewed, including silicon nanoparticles, silicon composites, and other related materials for lithium ion battery. The development trend and the prospect of silicon based anode materials for lithium ion batteries are also analyzed.