Jie Yan, Yutao Cui, Mo Xie, Guo-Zhan Yang, De-Shan Bin,* and Dan Li*
Abstract: Heteroaromatic-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 CuO4 unit 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 CuO4 unit, the 2D conductive MOF, named Cu-HHTQ (HHTQ = 2,3,7,8,12,13- hexahydroxytricycloquinazoline), can facilitate the Li+/e[1] transport and ensure a resilient electrode, resulting in a high capacity of 657.6 mAh g[1]1 at 600 mA g[1]1 with 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.
