Metal-organic frameworks (MOFs) with intrinsic pores and redox organic ligands/metallic ions have been viewed as the promising anodes with high capacity in lithium ion batteries (LIBs). However, conventional MOFs faces the disadvantages of poor electron conductivity and weak coordinate bond between organic ligands and central metal ions, inhibiting the application in LIBs. In this study, a conductive MOFs of Ni₃(HITP)₂ has been fabricated by reacting the strong-field ligand of 2,3,6,7,10,11-hexaiminotriphenylene (HITP) with Ni²⁺. The as-prepared Ni₃(HITP)₂ presents the spindle-like shape that are regular arranged by multi-nano fibers. While utilized in LIBs, Ni₃(HITP)₂ can deliver the reversible capacity of 703 mAh g⁻¹ at 50 mA g⁻¹ with almost no capacity fading. According to the theoretical calculation and XPS results, both amino groups in ligand and Ni²⁺ ions have participated in the redox reaction during the charge/discharge processes. The superior Li⁺ storage performance of Ni₃(HITP)₂ are contributed by the intercalation capacity of the redox groups and capacitance of the molecular pores.

具有固有孔和氧化还原有机配体/金属离子的金属有机骨架（MOF）已被视为锂离子电池（LIB）中具有高容量的有前途的阳极。然而，常规的MOF面临着电子传导性差和有机配体与中心金属离子之间弱的配位键的缺点，从而限制了其在LIB中的应用。在这项研究中，通过使2,3,6,7,10,11-六亚氨基三亚苯基（HITP）的强场配体与Ni ²⁺反应，制备了Ni ₃（HITP）₂的导电MOF 。所制备的Ni ₃（HITP）₂具有纺锤状形状，其由多纳米纤维规则排列。在LIB中使用时，Ni ₃（HITP）₂可以在50 mA g ^-1下提供703 mAh g ^-1的可逆容量，几乎没有容量衰减。根据理论计算和XPS结果，在充电/放电过程中，配体中的氨基和Ni ²⁺离子均参与了氧化还原反应。Ni ₃（HITP）₂的优异Li ⁺储存性能归因于氧化还原基团的嵌入能力和分子孔的电容。