Abstract : Owing to the lower cost and easy accessibility of potassium, potassium‐ion batteries are considered as potential substitutes for lithium‐ion batteries. A porous carbon monolith with ultrahigh pyridinic N content is successfully synthesized by Yu Chen, Chenglin Yan, and co‐workers in article1702268, which exhibits excellent electrochemical performance, especially in terms of reversible capacity, for both K + half‐cells and full‐cells.