This work reveals a balance between the improved oxygen reduction reaction/oxygen evolution reaction activity of nitrogen doped carbon and the concomitant activity in the decomposition of the electrolyte of the Lithium-oxygen battery. The capacity and cyclability of Lithium-oxygen battery increase with the nitrogen content to a vertex, then decrease with higher nitrogen content. The largest capacity of 7250 mA g⁻¹ and the best long-term stability of 71 cycles over 420 h are found in a catalyst with proper content of nitrogen. It is also found nitrogen doping can improve the work function of the carbon material, making it more resistant to decomposition in the working conditions of Lithium-oxygen battery.

这项工作揭示了改善的氮掺杂碳的氧还原反应/氧释放反应活性与锂氧电池电解质分解中的伴随活性之间的平衡。锂氧电池的容量和可循环性随着氮含量达到顶点而增加，然后随着氮含量的增加而降低。在具有适当氮含量的催化剂中，发现最大容量为7250 mA g ^-1，在420小时内具有71个循环的最佳长期稳定性。还发现氮掺杂可以改善碳材料的功函数，使其在锂氧电池的工作条件下更耐分解。