PEO/garnet composite electrolytes for solid-state lithium batteries: From “ceramic-in-polymer” to “polymer-in-ceramic”

PEO/garnet composite electrolytes from “ceramic-in-polymer” to “polymer-in-ceramic” are prepared by hot-pressing technology without introducing any solvent. The resultant electrolytes exhibit excellent electrochemical properties and the assembled batteries deliver high cycling stability and stable interface with Li anode, demonstrating a promising strategy for a safe, high-performance and solid-state Lithium batteries.298