Vanadium oxides are promising cathode materials for Zn-ion batteries. However, they are always suffered from inferior performance because of intrinsic sluggish kinetics, poor conductivity and surface elements dissolution. In this work, porous composite of V₂O₃ nanoparticles embedded in carbon framework is fabricated by pyrolysis of a Vanadium-base MOF. Attributing to the abundant pores, high specific area and conductive carbon framework, the obtained hierarchical composite delivers a high specific capacity of 240 mAh g⁻¹ at 0.5 A g⁻¹ although the content of carbon is up to 50%, and exhibits a good rate performance with 86.6% retention when the current densities increased from 0.5 to 4 A g⁻¹. Moreover, the cycling performance of the composite is much better than that of commercial V₂O₃.

钒氧化物是很有前途的锌离子电池正极材料。然而，由于固有的动力学缓慢、导电性差和表面元素溶解，它们总是性能较差。在这项工作中，通过钒基 MOF 的热解制备了嵌入碳骨架中的V ₂ O _{3纳米粒子的多孔复合材料。}归因于丰富的孔隙、高比表面积和导电碳骨架，所获得的多级复合材料在 0.5 A g ^{-1下提供了 240 mAh g -1}的高比容量，尽管碳含量高达 50%，并表现出良好的性能。当电流密度从 0.5 增加到 4 A g ^{−1时，保留率为 86.6% 的倍率性能}. 此外，该复合材料的循环性能远优于商用V ₂ O ₃。