We now compare the reaction products predicted herein to those reported previously when studying bilayer electrolyte cells. Starting with the sulfide/chloride pairings, Rosenbach et al. studied the Li 6 PS 5 Cl/Li 3 InCl 6 interface using time-of-flight secondary ion mass spectroscopy and focused ion beam scanning electron microscopy, and detected the formation of an InS -chemical feature, potentially linked to In 2 S 3 or LiInS 2 . Studying the same interface, Lee et al. also identified In 2 S 3 , PS 3- 4 , P 2 S 5 signatures by XPS. These reports indicate the instability of this bilayer. The predictions for the Li 6 PS 5 Cl/Li 3 InCl 6 interface in this work identified similar decomposition products (Eq. 3, Figure , Table , Table ), such as InPS 4 , LiInS 2 , In 2 S 3 , and LiCl.