In some embodiments, a solid electrolyte may exhibit a crystalline structure. The solid electrolyte may exhibit a variety of crystal forms, including single crystal and polycrystal. In embodiments where the solid electrolyte includes crystalline material, the solid electrolyte may take on different crystal forms, depending on the specific material configuration of the solid electrolyte. FIG. 6 provides a schematic illustration of a first example crystal structure 600 of a solid electrolyte. It will be appreciated that the crystal structure 600 illustrated may correspond to a ceria or zirconium crystal structure, which is provided here as an example only, and that other crystal structures are possible. For example, in embodiments, the solid electrolyte may comprise a perovskite ceramic, a ceramic having a perovskite structure, a zirconium ceramic, a ceria-gadolinia ceramic, an alumina ceramic, any variant of these, including any doped variant, and any combination of these.
