Sodium ion ordering of Na0.77CoO2 under competing multi-vacancy cluster, superlattice and domain formation

F. -T. Huang, G. J. Shu, M. -W. Chu +4

Hexagonal superlattice formed by sodium multi-vacancy cluster ordering in Na${}_{0.77}$CoO${}_2$ has been proposed based on synchrotron X-ray Laue diffraction study on electrochemicall…