Manganese oxides are widely used as cathode materials in aqueous zinc‐ion batteries (AZIBs) due to their low cost, multiple oxidation states, and high theoretical specific capacity. However, the further development of Mn‐based oxides is severely hindered by poor structural reversibility and sluggish reaction kinetics. Herein, a microstructure strain strategy is proposed to regulate the microstructure of MnO6 in ZnMn2O4 (ZMO) through partial atomic substitution on tetrahedral sites. The Ni substitution of ZMO (ZNxMO) with enlarged crystal plane spacing, increased Mn─O bond binding energy, and enhanced oxygen vacancy defects exhibits superior structural stability and faster ion transport kinetics. Correspondingly, the ZN0.5MO/NCNTs cathode delivers a favorable high specific capacity of 239.2 mAh g−1 at 0.1 A g−1 with excellent rate performance as well as longer‐term cycle life (over 3000 cycles at 1.0 A g−1). The outstanding performance of ZNxMO is deeply rooted in its Zn2+‐transport friendly in asymmetric MnO6 channel and the structure reversibility during the Zn2+‐intercalation/deintercalation process. This study provides an excellent example of using a microstructure strain strategy to design stable and high‐specific capacity manganese‐based cathode materials for Zn storage.

中文翻译：

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通过调节高性能水系锌离子电池的四面体位点来调节 ZnMn2O4 尖晶石的微观结构应变

锰氧化物由于其低成本、多种氧化态和高理论比容量而被广泛用作水性锌离子电池（AZIB）的正极材料。然而，锰基氧化物的进一步发展受到结构可逆性差和反应动力学缓慢的严重阻碍。在此，提出了一种微观结构应变策略来调节MnO的微观结构6锌锰2氧4（ZMO）通过四面体位点上的部分原子取代。 ZMO的Ni取代(ZNXMO)具有扩大的晶面间距、增加的Mn─O键结合能和增强的氧空位缺陷，表现出优异的结构稳定性和更快的离子传输动力学。相应地，ZN0.5MO/NCNTs 正极具有 239.2 mAh g 的高比容量−10.1 A g 时−1具有优异的倍率性能以及较长的循环寿命（1.0 A g 下超过 3000 次循环）−1）。 ZN的优异表现XMO 深深扎根于其 Zn2+‐不对称MnO中的传输友好6Zn 过程中的通道和结构可逆性2+‐嵌入/脱嵌过程。这项研究提供了一个利用微观结构应变策略设计稳定且高比容量的锰基储锌正极材料的绝佳例子。