Figure 6: 3D STEM tomography.
From: Phase evolution for conversion reaction electrodes in lithium-ion batteries
(a) A reconstructed NiO nanosheet with 50% SOC during charging process, and the green arrows exemplify the Ni nanoparticles that are imbedded in the NiO matrix as a result of heterogeneous nucleation. (b) A reconstructed NiO nanosheet in the fully discharged state. The electrochemically reduced Ni forms a bent porous metallic framework. The rotation operations are indicated in the figures. See Supplementary Information for complete movies (Movies 1 and 4). The scale bars are 20 nm and 50 nm in (a) and (b), respectively.
