A dual strategy of Mg²⁺ doping integrated with ZrO₂ surface modification is applied on P2-Na_0.67Ni_0.33Mn_0.67O₂ to optimize its electrochemical performance. The damaged P2–O2 phase transition as well as side reactions between cathode and electrolyte are both suppressed after dual-strategy modification, thus realizing stable high-voltage cathode and high energy density full cell for sodium ion batteries.

中文翻译：

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P2-Na0.67Ni0.33Mn0.67O2双策略修饰实现钠离子电池稳定高压正极和高能量密度全电池

^{将Mg 2+}掺杂与ZrO ₂表面改性相结合的双重策略应用于P2-Na _0.67 Ni _0.33 Mn _0.67 O ₂以优化其电化学性能。双策略改性后，损坏的P2-O2相变以及阴极与电解质之间的副反应均得到抑制，从而实现钠离子电池的稳定高压阴极和高能量密度全电池。