Research Article

Studies on Formation and Decomposition of the Layered Cobaltite LixNayCoO2

Table 1

Indexing of reflections for electron-diffraction pattern (Figure 7).

d exp, ÅSymbold hex, Å (γ-NaCoO2, P63/mmc) 𝑑 𝑅 , Å (LiCoO2, R3m)d hex, Å (Li0.42Na0.36CoO2, P63/mc)

The reflections of (101)*cross-sections

2.44● ○2.46 (010)2.43 (010), I = 02.46 (010)
2.43● ○2.40 (10-1)2.40 (1-1-1)2.44 (10-1)
2.40 (1-1-1)2.40 (1-1-1), twin. reflect.2.44 (1-1-1)
0.8210.821 (030)0.811 (030)0.820 (030)

The reflections of adjacent Laue zone

2.3112.299 (10-2)2.31 (10-3)
2.299 (10-2), twin. reflect.
2.0822.033 (1-1-3)
1.9732.00 (1-1-4)
2.00 (1-1-4), twin. reflect.
1.4141.405 (1-20)1.416 (1-20)
1.405 (1-20), twin. reflect.
1.36851.375 (1-2-2)1.367 (1-2-4)
1.34861.346 (1-2-3)
1.34771.346 (2-1-3)
1.21581.220 (022)
1.21591.212 (021)1.210 (02-3)
1.153101.150 (-204)