Air self‐charging aqueous batteries promise to integrate energy harvesting technology and battery systems, potentially overcoming a heavy reliance on energy and the spatiotemporal environment. However, the exploitation of multifunctional air self‐charging battery systems using promising cathode materials and suitable charge carriers remains challenging. Herein, for the first time, we developed low‐temperature self‐charging aqueous Zn‐K hybrid ion batteries (AZKHBs) using a fully conjugated hexaazanonaphthalene (HATN)‐based porous aromatic framework as the cathode material, exhibiting redox chemistry using K+ as charge carriers, and regulating Zn‐ion solvation chemistry to guide uniform Zn plating/stripping. The unique AZKHBs exhibit the exceptional electrochemical properties in all‐climate. Most importantly, the large potential difference causes the AZKHBs discharged cathode to be oxidized using oxygen, thereby initiating a self‐charging process in the absence of an external power source. Impressively, the air self‐charging AZKHBs can achieve a maximum voltage of 1.15 V, an impressive discharge capacity (466.3 mA h g‐1), and exceptional self‐charging performance even at –40 °C. Therefore, the development of self‐charging AZKHBs offers a solution to the limitations imposed by the absence of a power grid in harsh environments or remote areas.

中文翻译：

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调节具有空气自充电能力的低温水系锌钾混合电池的氧化还原活性多孔芳香骨架的电子离域

空气自充电水电池有望整合能量收集技术和电池系统，有可能克服对能源和时空环境的严重依赖。然而，利用有前景的正极材料和合适的电荷载体开发多功能空气自充电电池系统仍然具有挑战性。在此，我们首次开发了低温自充电水性锌钾混合离子电池（AZKHBs），使用完全共轭六氮杂萘（HATN）基多孔芳香骨架作为阴极材料，表现出使用K+作为电荷的氧化还原化学载体，并调节锌离子溶剂化化学以指导均匀的镀锌/剥离。独特的 AZKHB 在所有气候条件下都表现出卓越的电化学性能。最重要的是，大的电位差导致AZKHBs放电的阴极被氧气氧化，从而在没有外部电源的情况下启动自充电过程。令人印象深刻的是，空气自充电 AZKHB 可以实现 1.15 V 的最大电压、令人印象深刻的放电容量 (466.3 mA hg-1) 以及即使在 –40 °C 下也具有出色的自充电性能。因此，自充电 AZKHB 的开发为恶劣环境或偏远地区缺乏电网带来的限制提供了解决方案。