二维硅烯纳米片作为锂离子电池负极材料研究进展

Research Progress of Silicene Nanosheets as Anode Materials for Lithium-ion Batteries

硅材料被公认为最具有商业化前景的高容量锂离子电池负极之一,但其锂化膨胀率过高的问题成为阻碍应用的瓶颈。基于层状结构和特殊价键形式的新型二维材料—硅烯成为负极材料理想的硅源,为从根本上破解锂离子电池能量密度偏低的难题提供新途径。本文综述了硅烯纳米片作为锂离子电池负极的研究进展,分别就硅烯纳米片的特性、硅烯纳米片的制备工艺做了相应的介绍。

Silicon has emerged as one of the most promising anode materials for lithium-ion batteries,however,its practical application is hindered by its large volume variation during lithiation reaction.Recently,the silicene,a novel two-dimensional material with special valence bond,are considered to be a perfect alternative for the traditional silicon materials to increase the energy density of lithium-ion batteries significantly.This article reviews the research progress of the silicene nanosheets as the anode for lithium-ion batteries,focusing on the electrochemical properties and the main achievements in the synthesis of silicene nanosheets respectively.