(a) Scheme of density-based separation of oxide SSB components using heavy liquids, such as the Clerici solution or aqueous solutions of polytungstate, (b) density-based separation of thiophosphate (top) and oxide (bottom) rich fractions from an intimately ground mixture of Li3PS4, LiMn2O4 and Li4Ti5O12, (c) diffraction patterns of the low-density fraction and the high-density fraction, showing strong amorphization of the low-density fraction of LiBr.