Summary of interface improvement between garnet electrolyte and lithium metal in solid-state battery
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.
solid-state batterygarnet solid electrolytelithium metal anodelithium dendriteinterface modificationinterface contactsurface treatment