A trade-off between migration and association energies for hydride-ion conductivity in the SrLiH3–CaLiH3–NaLiH2 system

Perovskite-type hydride-ion conductors were explored in the SrLiH 3 –CaLiH 3 –NaLiH 2 system, with Sr 0.8 Na 0.2 LiH 2.8 achieving the highest H − conductivity of 5.1 × 10 −6 S cm −1 at 25 °C.