Key points are not available for this paper at this time.
Ca2+/F− co-doping mitigates P2–O2 transition and Na+/vacancy ordering in P2-type Na2/3Ni1/3Mn2/3O2, which significantly improves the rate capability and cycling performance due to the synergy of Ca2+ and F−.
Mao et al. (Fri,) studied this question.