All‐Solid‐State Batteries: Nano‐Scale Complexions Facilitate Li Dendrite‐Free Operation in LATP Solid‐State Electrolyte (Adv. Energy Mater. 26/2021)

In article number 2100707, Christoph Scheurer and co-workers stabilize solid state electrolyte grains against Li dendrite nucleation and growth with a nanometer thin complexion. This naturally forming encapsulating layer serves as an effective electronic barrier while being permeable for Li ions. Future interfacial engineering could exploit a corresponding local separation of electronic and ionic flux at solid-solid interfaces for rational advances in all-solid-state batteries.