Review on Interface and Interphase Issues in Sulfide Solid-State Electrolytes for All-Solid-State Li-Metal Batteries

All-solid-state batteries have emerged as promising alternatives to conventional Li-ion owing their higher energy density and safety, which stem from use of inorganic solid-state electrolytes instead flammable organic liquid electrolytes. Among various candidates, sulfide are particularly for the development high-energy all-solid-state Li metal because high ionic conductivity deformability. However, a significant challenge remains inherent instability in contact with electrodes forms unstable interfaces interphases, leading degradation battery performance. In this review article, we provide an overview key issues interphases electrolyte systems well recent progress understanding such interface interphase formation potential solutions stabilize them. addition, perspectives on future research directions field.