A 7Li NMR study of lithium insertion into lithium manganese oxide spinel

A 7Li NMR study of lithium insertion into lithium manganese oxide spinel

TitleA 7Li NMR study of lithium insertion into lithium manganese oxide spinel
Publication TypeJournal Article
Year of Publication2000
AuthorsMichael C Tucker, Jeffrey A Reimer, Elton J Cairns
JournalElectrochemical and Solid-State Letters
Volume3
Pagination463-466
Date Published08/2000
Abstract

7Li magic angle spinning nuclear magnetic resonance was used to observe coexisting cubic and tetragonal phases in Li1+xMn2O4. Cubic phase peaks are observed at 500-580 ppm vs. 1 M LiCL(aq); tetragonal phase peaks are observed around 100 ppm. Cycling Li1+xMn2O4 on the 3 V plateau does not result in significant changes in the cubic phase. A small amount of residual tetragonal phase accounting for ∼3% of the 7Li NMR intensity, however, is observed in spinel deep discharged to x=1 then returned to x=0.

DOI10.1149/1.1391180
Refereed DesignationRefereed