锂离子电池硅基负极材料研究进展

Research progress of silicon based anode materials for lithium ion batteries

硅材料由于其高容量和地壳中的高储量,成为近年来的研究热门。但硅材料的商业化还存在一些问题,主要是由于硅材料的体积效应导致的循环性能差和较低的电导率。本文综述了近年来对硅材料改性的一些方法,如:硅材料纳米化、碳包覆、合金化、预锂化,及与硅材料相匹配的粘结剂和电解液添加剂的研究等,并对硅材料的研究现状进行了总结和展望。

Because of its high capacity and high reserves in the earth’s crust,silicon materials have become a hot research topic in recent years.However,there are still some problems in the commercialization of silicon materials,mainly due to the poor cycle performance and low electrical conductivity caused by the volume effect of silicon materials.This article reviews some of the methods used to modify silicon materials in recent years,such as:silicon nanomaterials,carbon coating,alloying,pre-lithiation,and research on binders and electrolyte additives that match silicon materials,etc.And the research status of silicon materials is summarized and prospected.