fig10

Figure 10. Powder X-ray diffraction pattern of the residue obtained by heating Li_1.5Mn_1.5O_3.5 at 750 ^oC in the air and the Le Bail fit. Black and green curves are experimental and calculated overlaid patterns. Blue and red curves are calculated as single peak patterns for Li₂MnO₃ and LiMn₂O₄, respectively. The theoretical peak positions are shown at the bottom, and the grey line is the difference curve.