1. Central Research Laboratory, Hitachi, Ltd., 1–280, Higashi-koigakubo, Kokubunji, Tokyo, 185, Japan;2. Technical Research Laboratory, Hitachi Maxell, Ltd., 1-1-88, Ushitora, Ibaraki, Osaka, 567, Japan
Abstract:
Two minima in the lithium ionic conductivity vs. composition curve in the lithium nitride-lithium iodide system are observed at Li5NI2 and Li7N2I. It is shown that ionic conductivity minimum at the stoichiometric Li5NI2 is caused by the increase in the lithium ion concentration.