Table 1 Li/M mixing from Rietveld refinement analysis (details in the Supporting Information).

From: Lithium containing layered high entropy oxide structures

 

Lithium site

Metal site

Li

Na

Metal

Li

Metal

Li(NiCoMn)O2

0.96

0

0.04

0.15

0.85

Li(NiCoMnAl)O2

0.968

0

0.032

0.27

0.73

Li(NiCoMnAlZn)O2

0.965

0

0.035

0.26

0.74

Li(NiCoMnAlFe)O2

0.966

0

0.034

0.25

0.75

Li0.8Na0.2(NiCoMnAlFe)O2

0.8

0.2

0

0.11

0.89

  1. The values are given in fractions of 1. Both Li(NiCoMn)1O2 and Li0.8Na0.2(NiCoMnAlFe)1O2 showed the lowest degree of cation mixing. The different positions are indicated in the crystal structure in Fig. 2.