| abstract |
The invention provides a dual-strategy modified layered oxide sodium- ion battery positive electrode material and a preparation method and application thereof. The base layer transition metal oxide Na 0.67 Ni 0.33 Mn 0.67 O 2 is modified and obtained, and its chemical formula is Na 0.67 Ni 0.33‑x Mg x Mn 0.67 O 2 ‑n% ZrO 2 , 0<x<0.2, 0≤ n%≤3%, n% represents the mass percentage of ZrO2 in the cathode material of sodium ion battery. The positive electrode material provided by the invention has the advantages of high working voltage, stable structure, good cycle stability, good rate performance under high current density and the like, and has a good application prospect in the positive electrode material of sodium ion battery. |