fig2

Figure 2. (A) The SAED patterns of the P2 + O3 NaLiMNC composite: O3-type structure and P2-type structure; The STEM images: HADDF andABF images of P2 + O3 NaLiMNC composite; the blue and red rectangle represent O3 structure and P2 structure areas (Reproduced with permission from Ref.[73]. Copyright 2015, John Wiley and Sons); (B) In-situ XRD patterns collected during the first charge/discharge of NNFM-0.78 cell under 0.1 Cover a voltage range of 2.5-4.0 V, with the corresponding electrochemical charge-discharge profile (Reproduced with permission from Ref.[74]. Copyright 2017, American Chemical Society); (C) XRD patterns of