锂离子电池用硅基材料的研究进展  

Research progress of silicon-based materials for lithium-ion batteries

作　　者：梁晓杜 丁玉峰 Liang Xiaodu;Ding Yufeng(Wuhan Institute of Marine Electric Propulsion,Wuhan 430064,China)

机构地区：[1]武汉船用电力推进装置研究所,武汉430064

出　　处：《船电技术》2024年第12期87-91,96,共6页Marine Electric & Electronic Engineering

摘　　要：硅基材料因其较高的理论比容量有望取代石墨负极。然而,其大规模应用仍受到限制。本文介绍了硅基材料的不足,包括体积膨胀大、固体电解质界面不稳定及导电性低。并以此为基础,综述了目前硅基材料的改性策略,包括硅材料的纳米化及构筑硅碳复合材料,最后展望了硅基材料的未来发展方向,并指出了当前所面临的挑战,对硅基负极材料的发展和应用具有指导意义。Silicon-based materials are expected to replace graphite anode due to its high theoretical specific capacity.However,large-scale application of this material is still limited.This paper introduces the shortcomings of silicon-based materials,including large volume expansion,unstable interface of solid electrolyte and low electrical conductivity.Based on this understanding,the paper reviews the current modification strategies of silicon-based materials,including nano-fabrication of silicon-based materials and the construction of silicon-based carbon composites.Finally,the future development direction of silicon-based materials is prospected,and the challenges faced are pointed out,which has guiding significance for the development and application of silicon-based anode materials.

关 键 词：锂离子电池 硅负极 纳米材料 硅碳复合材料 

分 类 号：TM912[电气工程—电力电子与电力传动]