Counterintuitively, equilibrium [V Li ] under Li-rich conditions are higher than those under Li-poor conditions (∼ 8 × 10 15 cm -3 vs ∼ 6 × 10 14 cm -3 ) despite the existence of neutral V Cl under Li-rich conditions. Incidentally, interstitial Li (Li i ) will not be the dominant charge carrier over the entirety of the chemical potential range, which is echoed by previous literature , despite its lower migration barrier. Despite this, it is expected that Li i will be present, albeit in small quantities in undoped Li 3 OCl (∼ 7×10 13 cm -3 ) in a combined Schottky-Frenkel defect: