Interplay between Li 3 YX 6 (X = Cl or Br) solid electrolytes and the Li metal anode

摘要: The interplay between solid electrolytes and electrodes is of vital importance to the performance all-solid-state Li batteries. Recently, halide superionic conductors have emerged as a new family high-performance electrolytes, but their compatibility with metal, i.e., anode highest theoretical capacity, has not been systematically studied. Here, we investigate interaction metal two representative electrolytes: Li3YCl6 Li3YBr6. Both materials are found form interphases Li, similar most electrolytes. However, observed here contain electronic conducting components, which detrimental Li. By elucidating this phenomenon, present study provides guiding principles for improving