This rationale explains why sulfide ionic conductors often exhibit low activation barriers and higher ionic conductivity compared to more ionic oxides . Several notable examples exist where the modification of the anion framework and the alteration of the strength of local bonding interactions exert a discernible influence on the ionic conductivity of specific compounds. These instances include LISICONs such as Li 3.2 Ge 0.25 P 0.75 (O/S) 4 , NASICONs represented by (Li/Na)Ti 2 (PS 4 ) 3 , argyrodites exemplified by Li 6 P(O/S) 5 Cl) and Li 6 P(S/Se) 5 I, as well as rare-earth halides, denoted as Li 3 Er(Cl/I) 6 , and sodium thiophosphates characterized as Na 3 P(S/Se) 4 .