Aiming at the issue that the organic cathode of aqueous zinc-organic batteries (AZOBs) is easy to dissolve, a solubility-limited dibenzo [a, c] dibenzo [5, 6:7, 8] quinoxalino [2, 3-i] phenazine-10, 21‑dione (TABQ-PQ) molecule is successfully designed and synthesized. The extended π-conjugated plane not only improves the π conjugation effect of TABQ-PQ but also enhances its π-π stacked interaction, resulting in low solubility and good structural stability. Furthermore, the TABQ-PQ cathode exhibits an H⁺-coordination charge-storage mechanism, along with high capacitance-controlling behavior, providing fast reaction kinetics. As expected, the TABQ-PQ delivers a superlong cycling life of over 30 000 cycles and a high discharge capacity of 140.7 mAh g^-1 at 20 A g^-1. This work sheds light on the design of solubility-limited organic electrodes for high-performance AZOBs.

针对水系锌有机电池（AZOBs）有机正极易溶解的问题，溶解度受限的二苯并[a,c]二苯并[5,6:7,8]喹喔啉[2,3-i] phenazine-10, 21-dione (TABQ-PQ) 分子设计合成成功。扩展的π-共轭平面不仅提高了TABQ-PQ的π共轭效应，而且增强了其π-π堆积相互作用，导致低溶解度和良好的结构稳定性。此外，TABQ-PQ 阴极具有 H ⁺配位电荷存储机制以及高电容控制行为，可提供快速反应动力学。正如预期的那样，TABQ-PQ 提供了超过 30 000 个循环的超长循环寿命和20 A g -1 下^{140.7 mAh g -1}的高放电容量. 这项工作阐明了用于高性能 AZOB 的溶解度受限有机电极的设计。