All‐Solid‐State Batteries: New Cost‐Effective Halide Solid Electrolytes for All‐Solid‐State Batteries: Mechanochemically Prepared Fe3+‐Substituted Li2ZrCl6 (Adv. Energy Mater. 12/2021)

In article number 2003190, Kyung-Wan Nam, Yoon Seok Jung and co-workers develop a new halide solid electrolyte, Fe3+-substituted Li2ZrCl6, that is mechanically sinterable, (electro)chemical-oxidation tolerant, and free of rare-earth metals. The outstanding performance of the all-solid-state batteries using LiCoO2 and LiNi0.88Co0.11Al0.01O2 is enabled by the use of the newly developed halide superionic conductors.