Abstract
AbstractHeteroaromatic‐conjugated aromatic molecules have inspired numerous interests in rechargeable batteries like Li‐ion batteries, but were limited by low conductivity and easy dissolution in electrolytes. Herein, we immobilize a nitrogen‐rich aromatic molecule tricycloquinazoline (TQ) and CuO4unit into a two‐dimensional (2D) conductive metal–organic framework (MOF) to unlock their potential for Li+storage. TQ was identified redox activity with Li+for the first time. With a synergistic effect of TQ and CuO4unit, the 2D conductive MOF, named Cu‐HHTQ (HHTQ=2,3,7,8,12,13‐hexahydroxytricycloquinazoline), can facilitate the Li+/e−transport and ensure a resilient electrode, resulting in a high capacity of 657.6 mAh g−1at 600 mA g−1with extraordinary high‐rate capability and impressive cyclability. Our findings highlight an efficient strategy of constructing electrode materials for energy storage with combining multiple redox‐active moieties into conductive MOFs.
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