Solid‐State Batteries: Overcoming the Interfacial Limitations Imposed by the Solid–Solid Interface in Solid‐State Batteries Using Ionic Liquid‐Based Interlayers (Small 14/2020)

In article number 2000279, Maximilian Fichtner, Stefano Passerini, and co-workers demonstrate improved interfacial properties of a lithium lanthanium zirconate (LLZO) solid-electrolyte (SE)-based solid-state battery by employing ionic liquid interlayers at the electrode/electrolyte junctions. This strategy lowers the interfacial resistances and suppresses Li dendrite formation, thus enabling high Li reversibility with the SE. As a result, cells stacked in bipolar configuration deliver excellent electrochemical performance.