面向实用化全固态锂离子电池的界面问题及调控策略
刘爱芳 , 赵世康 , 何敏 , 李宝毅 , 白雪丽 , 王峰 , 侯凯
现代化工 ›› 2026, Vol. 46 ›› Issue (7) : 18 -23.
面向实用化全固态锂离子电池的界面问题及调控策略
Interface issues and regulation strategies for practical all-solid-state lithium-ion batteries
本文系统综述了固态电池中关键界面问题的基本原理,包括固-固物理接触不良、空间电荷层效应以及电化学相容性差等,涵盖不同正极材料体系、电解质本身以及锂金属负极所面临的电解质分解、界面兼容性、稳定性及锂枝晶等挑战。总结了通过电解质材料掺杂改性、界面涂层技术以及增加界面润湿性等手段构建兼容的电解质/电极界面。最后,从基础研究和工程应用2个维度,展望了实现高能量密度、高安全性、长寿命全固态电池产业化的发展路径。
This paper systematically reviews the fundamental principles of key interface issues in solid-state batteries,including poor solid-solid physical contact,space charge layer effects,and poor electrochemical compatibility.It also covers challenges related to different cathode material systems,the electrolyte itself,and lithium metal anodes,such as electrolyte decomposition,interfacial compatibility,cycling stability and lithium dendrite formation.Based on this basis,strategies for constructing compatible electrolyte/electrode interfaces are summarized,including electrolyte material doping modification,interface coating technology,and enhancing interfacial wettability.Finally,from the perspectives of basic research and engineering applications,it prospects the development path for the industrialization of high-energy-density,high-safety,and long-life all-solid-state batteries.
solid electrolyte / interface engineering / solid-state battery / cycling stability
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国家自然科学基金项目(52474138)
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