Hollow nanostructures are extremely attractive in energy storage and show broad application prospects. But the preparation method is accompanied by a complicated process. In this article, the CoZn–based hollow nanoboxes with electrochemical synergy are prepared in a simple way. This structure can effectively shorten the transmission distance of ions and electrons, and alleviate the volume expansion during the cycle. In particular, bimetallic oxides are rich in oxygen vacancies, providing more active sites for electrochemical reactions. In addition, the stepwise oxidation–reduction reaction can also improve the volume change of the electrode material. According to the kinetic analysis and density functional theory (DFT) calculation, it is confirmed that the synergistic effect of the bimetallic oxide can accelerate the reaction kinetics. Based on these characteristics, the electrode exhibits stable cycle performance and long cycle life in alkali metal ion batteries, and can provide reversible capacities of 302.1 (LIBs, 2000 cycles), 172.5 (SIBs, 10000 cycles) and 109.6 (PIBs, 5000 cycles) mA h g^–1 at a current density of 1.0 A g^–1, respectively. In addition, by assembling (LiCoO₂//CoZn–O₂) and (Na₃V₂(PO₄)₃//CoZn–O₂) full–cells, the practical application value is demonstrated. The sharing of this work introduces a simple way to synthesize hollow nanoboxes, and shows excellent electrochemical performance, which can also be expanded in other areas.

中空纳米结构在储能方面极具吸引力，具有广阔的应用前景。但该制备方法伴随着复杂的过程。在本文中，以简单的方式制备了具有电化学协同作用的 CoZn 基中空纳米盒。这种结构可以有效缩短离子和电子的传输距离，缓解循环过程中的体积膨胀。特别是双金属氧化物富含氧空位，为电化学反应提供了更多的活性位点。此外，逐步氧化还原反应还可以改善电极材料的体积变化。根据动力学分析和密度泛函理论（DFT）计算，证实双金属氧化物的协同作用可以加速反应动力学。^{–1 分别}在 1.0 A g ^–1的电流密度下。此外，通过组装（LiCoO ₂ //CoZn-O ₂）和（Na ₃ V ₂ (PO ₄ ) ₃ //CoZn-O ₂）全电池，展示了实际应用价值。这项工作的分享介绍了一种合成中空纳米盒的简单方法，并显示出优异的电化学性能，也可以在其他领域进行扩展。