材料科学
锂(药物)
导电体
金属有机骨架
金属锂
金属
纳米技术
复合材料
冶金
有机化学
吸附
电极
电解质
医学
化学
物理化学
内分泌学
作者
Jun Yin,Xin Lian,Zhigang Li,Mingren Cheng,Ming Liu,Jingyi Xu,Wei Li,Yunhua Xu,Na Li,Xian‐He Bu
标识
DOI:10.1002/adfm.202403656
摘要
Abstract 2D conductive metal–organic frameworks (2D c ‐MOFs) have attracted increasing attention as promising electrode materials for rechargeable batteries due to their designable periodic motifs, large specific surface areas, and prominent electrical conductivity. However, the development of 2D c ‐MOF electrode materials with functionality remains a significant challenge because of the limited electroactive ligand motifs available. Herein, a hexahydroxy‐substituted triazacoronene ligand (6OH‐TAC) is deliberately designed and synthesized, which coordinates with Cu 2+ ions to form an unprecedented 2D c ‐MOF (Cu‐TAC) with functionality sites of efficient lithium storage. The synergistic effect of TAC and CuO 4 enables Cu‐TAC as an anode for lithium‐ion batteries with a superior reversible capacity of 772.4 mAh g −1 at 300 mA g −1 , remarkable rate performance, and outstanding long‐term cyclability (83% capacity retention at 300 mA g −1 for 600 cycles). These metrics outperform almost all 2D c ‐MOF‐based electrodes, shedding light on new opportunities for energy storage devices.
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