Calcium manganite (CMO) holds great potential for OER/ORR catalysis. But, the weak interaction between the oxygen intermediates and reaction sites leads to sluggish catalytic kinetics. Herein, to trigger the exceptional catalytic activity of CMO, we propose a thermal-induced MnO₆ octahedral distortion strategy to advance the absorption capability of intermediate reactants. Refined structural analysis and theoretical calculation reveal that the strong Jahn-Teller distortion of MnO₆ is capable of optimizing the surface electron redistribution and accelerating the electron transfer between the oxygen and Mn sites, which significantly boosts the intrinsic oxygen catalytic activities of the distorted CMO (D-CMO). Notably, the D-CMO functions as excellent bifunctional oxygen electrocatalysts and enables a high-performance solid-state Zn-air battery with satisfactory mechanical strength. Specifically, the as-assembled battery displays a remarkable open circuit voltage of 1.46 V and high peak power density of 149 mW cm⁻², even outstripping noble-metal-based counterparts. Modulating the octahedral units to ignite the intrinsic oxygen catalytic activity provides enlightening clues to design perovskite-type air cathodes.

钙锰矿（CMO）在OER / ORR催化方面具有巨大潜力。但是，氧中间体与反应位点之间的弱相互作用导致催化动力学迟缓。在本文中，为了触发CMO的出色催化活性，我们提出了一种热诱导的MnO ₆八面体形变策略，以提高中间反应物的吸收能力。精细的结构分析和理论计算表明，MnO ₆有很强的Jahn-Teller变形能够优化表面电子的重新分布，并加速氧和Mn位点之间的电子转移，这显着提高了变形CMO（D-CMO）的固有氧催化活性。值得注意的是，D-CMO可以用作出色的双功能氧电催化剂，并可以实现具有令人满意的机械强度的高性能固态Zn-空气电池。具体地说，组装后的电池显示出1.46 V的显着开路电压和149 mW cm ^-2的高峰值功率密度，甚至超过了贵金属基电池。调节八面体单元以点燃固有的氧催化活性，为设计钙钛矿型空气阴极提供了启发性的线索。