固态电池石榴石电解质与锂金属界面改善的综述  

Summary of interface improvement between garnet electrolyte and lithium metal in solid-state battery

作　　者：赵卫民 王淼 朱燕峰 ZHAO Weimin;WANG Miao;ZHU Yanfeng(College of Chemical Engineering and Safety,Binzhou University,Binzhou,Shandong 256600,China)

机构地区：[1]滨州学院化工与安全学院,山东滨州256600

出　　处：《电池》2024年第4期574-577,共4页Battery Bimonthly

基　　金：山东省自然科学基金重点项目(ZR202011050003)。

摘　　要：固态电池因高比能量、高安全性和宽使用温度范围等优势,具有广阔的应用前景。石榴石固态电解质具有较高的离子电导率、较宽的电化学窗口以及对锂金属稳定等特点,是构筑全固态锂金属电池较有发展前景的固态电解质之一。石榴石固态电解质与锂金属之间存在着接触不良、高界面阻抗等问题。对石榴石电解质/锂负极的界面特性及界面问题的成因进行分析,并总结电解质和锂金属表面处理以及引入界面层等调控策略,包括使用锂合金、去除电解质表面的污染物,以及使用原子层沉积、磁控溅射沉积、真空蒸镀等技术添加修饰层,为解决石榴石与锂负极的界面问题提供借鉴。Solid-state batteries,with their high specific energy,enhanced safety and extended operating temperature range,present a broad application prospect.Garnet solid electrolyte has emerged as one of the promising choices for building all-solid-state lithium metal batteries due to high ionic conductivity,wide electrochemical window and compatibility with lithium metal.There are issues such as insufficient interfacial contact and high impedance between garnet electrolyte and lithium metal.The interface characteristics of garnet electrolyte/lithium anode and the causes of interface issues are analyzed,control strategies of electrolyte and lithium metal surface treatment and introduction of interface layers are summarized,such as the use of lithium alloys,surface treatments for the electrolyte and the introduction of interfacial coating layers by atomic layer deposition,magnetron sputtering deposition and vacuum evaporation.These strategies provide a reference for addressing interface issues between garnet electrolyte and lithium anode.

关 键 词：固态电池 石榴石固态电解质 锂金属负极 锂枝晶 界面修饰 界面接触 表面处理 

分 类 号：TM911.15[电气工程—电力电子与电力传动] TM912.9