文献类型：期刊文献

中文题名：锂离子电池硅基负极材料的研究进展

英文题名：Research progress of Si-based anode for Li-ion batteries

作者：赵世勇[1];周敏[2];关士友[2]

机构：[1]张家港市国泰华荣化工新材料有限公司,江苏张家港215634;[2]华东理工大学材料科学与工程学院,上海200237

年份：2015

卷号：39

期号：5

起止页码：1096

中文期刊名：电源技术

外文期刊名：Chinese Journal of Power Sources

收录：CSTPCD;;Scopus;北大核心:【北大核心2014】；CSCD:【CSCD_E2015_2016】；

语种：中文

中文关键词：硅;负极;锂离子电池;循环性能

外文关键词：Si; anode; Li-ion batteries; cycling performance

摘要：电动汽车和先进电子设备对锂离子电池的能量密度提出了更高的要求。硅的理论比容量能够达到4 200 m Ah/g,被认为是一种很有前景的锂离子电池负极材料。但是,硅在充放电过程中巨大的体积变化(>300%)导致容量迅速衰减。近年来,研究者们采用不同方法改善了其循环性能,主要有:制备硅基复合材料;制备特殊形貌的硅基材料;选用更加合适的粘结剂、电解液、集流体和控制电压窗口。对这些方法进行了概述,并展望了硅作为高能量密度锂离子电池负极材料的应用前景。
The development of electrical vehicles and advanced electronic devices requires high-energy-density Li-ion batteries as power sources. Si possesses high theoretical capacity （4 200 mAh/g）, thus it is considered to be a promising anode material for Li-ion batteries. Unfortunately, the practical application is seriously hindered by the huge volume changes （〉300%） during Li insertion/extraction from Si, leading to rapid capacity fading upon cycling. Over the years, tremendous efforts have been made to overcome these issues and improve the overall cycling performance of Si anode, mainly including preparing Si-based composites, preparing Si with specific morphology, replacing the binder, electrolyte and current collector with more effective ones and controlling the operating voltage. The research progress of Si-based anode for Li-ion batteries was summarized and its prospects were also discussed.