Design Interface Reactions in All-Solid-State Batteries

Solid state battery is a mechanically more coupled device than the commercial liquid electrolyte Li-ion batteries. Mechanical constriction effect strongly modulates the electrochemical stability at all interfaces in a solid-state battery. This effect introduces some unique dynamical evolution of interface reactions upon battery cycling, understanding of which is challenging but also giving us an opportunity to design the battery performance beyond commercial Li-ion batteries. The talk will discuss the design of such a dynamic process at the electrolyte-electrode interfaces for a stable cycling of solid state batteries. The importance of the self-limiting interface reactions due to dynamic voltage stability will be emphasized.