fig8

Figure 8. (A) Schematic illustration of the Zr modification process and effects on a P2 cathode; (B) TEM characterizations of the Zr-modified P2 cathode; (C) Rate and cycling performance of P2-NaNM@Zr in comparison with the bare P2-Na_2/3Ni_1/3Mn_2/3O₂. Reproduced with permission, Copyright 2022^[149], Elsevier B.V.; (D) Schematic diagram of the oxygen loss suppressed by simultaneous dielectric surface coating and site-selective co-doping; (E) SEM and TEM characterizations of CaTiO₃-modified P2-Na_2/3Ni_1/3Mn_2/3O₂; (F) Voltage profiles and cycling performance of bare and CaTiO₃-modified P2-Na_2/3Ni_1/3Mn_2/3O₂. Reproduced with permission, Copyright 2023^[151], Wiley-VCH; (G) Schematic illustration of the lab ALD facility; (H) Simulated diagram and characterizations of the ALD coating of Al₂O₃ on the surface of Na_2/3Ni_1/3Mn_2/3O₂; (I) cycling performance of unmodified and Al₂O₃-coated Na_2/3Ni_1/3Mn_2/3O₂ cathodes. Reproduced with permission, Copyright 2022^[156], Wiley-VCH; (J) Schematic illustration of alucone coating introduced by MLD process on the surface of P2 oxides; (K) Nyquist spectra and charge-discharge curves of uncoated, Al₂O₃-coated, and alucone-coated P2-Na_0.66Mn_0.9Mg_0.1O₂; (L) Cycling and rate performance of these P2 cathodes. Reproduced with permission, Copyright 2020^[158], Wiley-VCH.