The phase relationships and electrical conductivities of ternary iodide systems were studied by means of high-temperature X-ray and impedance spectroscopic methods. It was noted that, whereas the mutual solubility of LiI and MnI2 was negligible at any temperature, deficient NaCl-type mixed crystals, Li1-xM0.5xI, were formed at temperatures above 540K. However, these could not be quenched to room temperature. The solid solutions which were obtained exhibited high ionic conductivities. That is, 0.03S/cm at 570K (table 269).

H.D.Lutz, Z.Zhang, A.Pfitzner: Solid State Ionics, 1993, 62[1-2], 1-3

Table 269

Conductivity of LiI-MnI2