High concentration LiBr is beneficial to enhance the Br⁻ oxidation rate, displaying stable low voltage plateau during charging process for lithium–oxygen batteries. However, the sufficient cyclic performance is generally restricted by uncontrollable high level Br₃⁻, resulting in the low energy efficiency and shuttle effect. Herein, a nanoreactor, red-ox mediators shuttling suppressor and lithium-metal protector with the combination of the high concentration and shuttle-free LiBr are successfully constructed by anchoring the Br₃⁻ to carbonized ZIF-8 supported on reduced graphene oxide substrate (ZC-rGO). ZnO-decorated/nitrogen-doped 3D carbon framework of ZC-rGO cathode can accurately capture Br₃⁻ by space confinement effects and/or chemisorption, which is beneficial to improve the oxidation of discharge products (Li₂O₂) and avoid the anode corrosion. The Li–O₂ battery demonstrates enormous advantages of the RMs in comparation with the typical rGO-based batteries, such as better cycling performance (>90 cycles) and more stable overpotential (<1.0 V). The proposed strategy in this study opens up a new way of inhibiting the shuttle effect of RMs in Li–O₂ batteries and other halogen batteries.

高浓度的LiBr是有益于增强溴^-氧化速率，锂氧电池充电过程期间显示稳定的低电压平台。然而，充分的循环性能通常由不可控制的高级别限制溴₃ ^- ，导致低的能效和梭效应。在此，纳米反应器，红牛介质穿梭抑制器和锂的金属保护器与高浓度和LiBr自由穿梭的组合被成功地通过锚定构造的溴₃ ^-至碳化ZIF-8支撑还原氧化石墨烯衬底上（ZC -rGO）。ZC-RGO阴极的ZnO的装饰/氮掺杂的3D碳骨架可以准确地捕捉溴₃ ^-通过空间限制效应和/或化学吸附作用，这有利于改善放电产物（Li ₂ O ₂）的氧化并避免阳极腐蚀。与基于rGO的典型电池相比，Li–O ₂电池展示了RM的巨大优势，例如，更好的循环性能（> 90个循环）和更稳定的过电势（<1.0 V）。这项研究中提出的策略开辟了一种新的方式来抑制RM在Li-O ₂电池和其他卤素电池中的穿梭效应。