Large-scale adoption of electric vehicles requires batteries with higher energy density, lower cost, and improved safety compared to state-of-the-art (SOA) Li-ion technology. While there are efforts to discover new electrolytes with high conductivity, there are several existing solid electrolytes that have some of the necessary attributes to enable solid-state batteries. Ceramic electrolytes represent one class of solid electrolyte that exhibits the unprecedented combination of stability against Li, high ionic conductivity, and adequate mechanical properties to suppress Li dendrite formation, among several other key features. Owing to the recent attention ceramic electrolytes have garnered, this presentation summarizes key findings, highlights the challenges, and discusses the future outlook for solid-state Li-ion conducting electrolytes. The following aspects will be discussed: 1) Li-ion conductivity, 2) phase stability, 3) chemical and electrochemical stability, 4) mechanical properties, and 5) cell integration.