Lithium ion conduction in lithium nitride single crystals and sinters

✍ Scribed by U.v. Alpen; M.F. Bell; T. Gladden

• Publisher: Elsevier Science
• Year: 1979
• Tongue: English
• Weight: 568 KB
• Volume: 24
• Category: Article
• ISSN: 0013-4686
• DOI: 10.1016/0013-4686(79)80002-x

✦ Synopsis

a

~ Although single crystal lithium nitride is a good lithium ion conductor, its application would require the preparation of a suitable sintered material which retained the outstanding properties of the single crystal. This paper describea our attempts to prepare such sinters and the measurements we have carried out to characterize their bulk electrochemical properties.

INTRODUCl'ION

In a number of papers [l,2], it has been shown that high quality lithium nitride ls a good lithium ion conductor. Thus, the result@] obtained previously at this institute showed that, in this anisotropic material, the ionic conductivity in the best crystallographic ie perpendicular to the c-axis is around 10m3 W' cm-' at room temperature. In addition, the material is stable in contact with elemental lithium and the partial electronic conductivity is negligible at room temparature. The free energy of formation of this material as abtained from an analysis of the decom-