Figure 8
(a) RGB image of a large (about 1 mm × 5 mm) region of a LiNi0.5Mn1.5O4 electrode charged to 4.783 V with Ni (red), Mn (green) and transmission (blue). (b, c) Relative intensity maps of Mn and Ni from the selected region marked in (a), 0.5 mm × 0.5 mm in size, selected for XANES mapping. (d) Phase distribution of the Ni oxidation state in the selected region obtained by linear combination (LC) fitting. (e) Single-pixel XANES at the selected spots marked in (d) and the correlated LC fit. Adapted from Boesenberg et al. (2015). Reprinted with permission from Boesenberg et al. (2015). Copyright 2015 American Chemical Society. |