锂离子电池硅基负极材料的研究进展

Research Progress of Si-Based Anodes for Lithium-Ion Batteries

硅具有最高的理论比容量、丰富的地壳储量和较低的电压平台,被认为是最有潜力的下一代锂离子电池负极材料,但其在脱嵌锂过程中巨大的体积膨胀及导电性能差都严重影响其性能表现。本文着重聚焦了通过结构设计和复合化这两大方面来改善硅基负极材料性能的一些方案和解决思路,概述了硅基负极材料近年来的研究进展,并对其研究现状进行总结及展望。

Silicon has the highest theoretical specific capacity,abundant crustal reserves and low voltage platforms,which is considered as the most promising next-generation lithium-ion battery material,however,the huge volume expansion during the lithium ion intercalation/deintercalation process and poor electrical conductivity seriously affect its performance.In this paper,the methods and solutions to improve the properties of Si-based anode materials through structural design and composite are focused,and the research progress of Si-based anode materials in recent years is summarized,and the research status and prospects are summarized.