Constructing stable and reversible manganese-based cathode is one of the key technologies of aqueous Zn/MnO₂ batteries (AZMBs). Herein, a rational strategy of fluorine doping is proposed to improve the reversibility and activity of MnO₂. According to the strong bonding induced by high electronegativity of fluorine, the integrity of frameworks can stabilize, and the ion diffusion kinetics is promoted. Meanwhile, the strong ‘pinning effect’ of fluorine effectively retains the electrochemical activity and guides the reversible electrochemical behavior, which plays a critical role in improving both the cycle life and energy efficiency. As expected, a significant specific capacity of 300 mAh/g at 0.6 C and impressive stability over 1,200 cycles at 5 C are achieved without obvious decay. Such high stable Zn/F–MnO₂ system may provide novel perspectives for designing high-performance AZMBs.

构建稳定且可逆的锰基正极是水系Zn/MnO ₂电池（AZMBs）的关键技术之一。在此，提出了一种合理的氟掺杂策略，以提高 MnO ₂的可逆性和活性. 根据氟的高电负性引起的强键合，框架的完整性可以稳定，并促进离子扩散动力学。同时，氟的强大“钉扎效应”有效地保持了电化学活性并引导可逆的电化学行为，这在提高循环寿命和能源效率方面起着至关重要的作用。正如预期的那样，在 0.6 C 下实现了 300 mAh/g 的显着比容量和在 5 C 下超过 1,200 次循环的令人印象深刻的稳定性，而没有明显的衰减。这种高度稳定的Zn/F-MnO ₂系统可以为设计高性能AZMBs 提供新的视角。