storage and conversion. [8a,c,11] For example, Xu et al. summarized the advances of MOFs and their derivatives for electrochemical applications, including supercapacitors, batteries, and fuel cells. [11a] Besides, Zou et al. presented some engineering strategies to improve the performance of MOF-related materials for energy storage and conversion. [11i] However, few review articles focus on MOF-related materials as cathode materials for alkali metal ion batteries (LIBs, SIBs, and PIBs). Besides, the relationship between fundamental characteristics and electrochemical performance for MOF-related cathode materials is less discussed. Given the key role of the cathode materials in the batteries, in this review, we present design principles for promoting the electrochemical performance of MOF-related materials in terms of component/structure design, composite fabrication, and morphology engineering. Last, the challenges and perspectives about MOF-related cathode materials for alkali metal ion batteries are discussed.

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CNFs@Co-CoO (CNFs = carbon nanofibers) composite showing “gypsophila”-like morphology was designed and prepared for the first time with in situ grown PAN@ZIF-67 (PAN = polyacrylonitrile) as the precursor. Benefiting from its unique morphology, hierarchically porous structure, and high-activity Co-CoO catalyst centers, the composite shows a better electrochemical performance than pure CNFs as a cathode for Li–O2 batteries.

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