Fig. 2: Interlayer spacing of synthesized cathodes.

XRD patterns and Rietveld refinement plots of a CuMgTi-533, b CuMgTi-552, c CuMgTi-571, and d NaMNO2 samples. e The detailed atomic model of interlayer spacing (do-o) in P2-type layered structure is presented on the left. The values of lattice parameter c and interlayer spacing for four samples are presented on the right.