Site Occupation of Ga and Al in Stabilized Cubic Li7–3(x+y)Ga x Al y La3Zr2O12 Garnets As Deduced from 27Al and 71Ga MAS NMR at Ultrahigh Magnetic Fields

Li-containing garnets, which are stabilized in their cubic modification by doping with Al or Ga, show very high Li-ion conductivities. This property qualifies them to be used as solid electrolytes in advanced all-solid-state batteries. The relation between local structures and dynamic properties, however, is still not fully understood. Here, cubic mixed-doped Li7–3(x+y)Ga x Al y La3Zr2O12 garnet solid solutions with different portions of Al and …