The α-type rock-salt material was prepared from Li2CO3 and Fe2O3. It was found that the Li could be exchanged for Ag in silver nitrate. A substituted rock salt, AgxLi1-xFeO2, was initially produced, but the ultimate product of the ion-exchange process was α-AgFeO2. By using transient electrochemical measurements, the diffusion coefficient of Ag in AgxLiFeO2 was found to be about 5 x 10-8cm2/s.

R.W.Hardeman, D.J.Fray: Solid State Ionics, 1988, 27[3], 151-6