Figure 4
(a) A 3D rendering of the single-energy tomogram of the imaged LixTa0.3Mn0.4O2 cathode particles. Panels (b) and (c) are the 2D and 3D visualizations of the Mn valence-state distribution, respectively. (d) Mn K edge X-ray absorption spectra over the regions of interest labeled in panel (b). (e) The relative probability distribution of the Mn K-edge energy over the two particles as labeled in panel (c). |