fig6

Figure 6. (A) The crystal structure types of NaNi_1/3Fe_1/3Mn_1/3O₂ and NaNi_1/3Fe_1/3Mn_1/3-xZr_xO₂ (x = 0, 0.01, 0.02, 0.04). High-resolution transmission electron microscopy images of (B) NFM and (C) NFMZ2. (D) Cycling performance of all electrodes at 5 C. (E) The rate capability of all electrodes. (A-E) Reproduced with permission^[132]. Copyright 2024, Wiley. NFM: NaNi_1/3Fe_1/3Mn_1/3O₂.