Refreshing the record of the electrocatalytic activity for bifunctional oxygen electrocatalysis is the first priority of developing next-generation rechargeable zinc-air batteries. A ΔE indicator to evaluate the bifunctional electrocatalytic activity has stagnated with a record of ΔE > 0.60 V for decades. Herein, a bifunctional oxygen electrocatalyst is developed to afford an ultrahigh bifunctional electrocatalytic activity of ΔE = 0.57 V and realize high-performance rechargeable zinc-air batteries. Specifically, atomically dispersed Fe-N-C sites and NiFeCe layered double hydroxides are integrated to afford a composite FeNC@LDH electrocatalyst, following the guidance of the data-driven analysis. The FeNC@LDH electrocatalyst demonstrates a record-breaking electrocatalytic activity of ΔE = 0.57 V, far exceeding the state-of-the-art level by ca. 60 mV. Practical ampere-hour-scale zinc-air batteries are constructed with a capacity of 6.4 Ah and cycle under 1.0 A and 1.0 Ah conditions. This work affords a record-breaking bifunctional electrocatalyst for ampere-hour-scale zinc-air batteries in future application scenarios.

刷新双功能氧电催化电催化活性的记录是开发下一代可充电锌空气电池的首要任务。几十年来，评估双功能电催化活性的Δ E指标一直停滞在 Δ E  > 0.60 V 的记录。在此，开发了一种双功能氧电催化剂，以提供ΔE = 0.57 V的超高双功能电催化活性 ，并实现高性能可充电锌空气电池。具体来说，按照数据驱动分析的指导，将原子分散的 Fe-NC 位点和 NiFeCe 层状双氢氧化物集成在一起，形成复合 FeNC@LDH 电催化剂。 FeNC@LDH电催化剂表现出破纪录的电催化活性，ΔE =  0.57 V，远远超过了最先进的水平约。 60毫伏。实用的安时级锌空气电池容量为 6.4 Ah，在 1.0 A 和 1.0 Ah 条件下循环。这项工作为未来应用场景中的安时级锌空气电池提供了破纪录的双功能电催化剂。