Despite the high theoretical specific capacity of 1675 mAh g⁻¹, lithium–sulfur batteries (LSBs) are still far away from wide commercialization due to the poor sulfur/Li₂S electroconductivity and the polysulfides shuttle effect. In order to alleviate the active materials shuttling, separators in LSBs are required to guarantee the fast lithium‐ion transfer as well as the strong polysulfides immobilization. Therefore, various functional materials have been employed to modify the separator to achieve this goal. Among them, metal–organic frameworks (MOFs) with easy morphology design and high ionic or electronic conductivity have been widely investigated. This review summarizes the recent advances of MOF‐based interlayer for LSBs separator functionalization. Original MOFs, MOF derivatives, and MOF composites are included in this discussion. The mechanism of the enhancement of the electrochemical performance of each modified separator is explicated. Furthermore, the prospect of this promising area is provided.

中文翻译：

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基于MOF的多功能隔膜材料，用于高级锂硫电池

尽管理论比容量高达1675 mAh g ^-1，但锂/硫电池（LSB）仍因硫/锂₂贫乏而无法实现广泛的商业化S具有导电性和多硫化物的穿梭作用。为了减轻活性物质的漂移，需要在LSB中使用隔板，以确保锂离子的快速转移以及牢固的多硫化物固定化。因此，已采用各种功能材料来修改隔板以实现该目的。其中，具有易于形态设计和高离子或电子导电性的金属有机骨架（MOF）已得到广泛研究。这篇综述总结了基于MOF的中间层用于LSB分离器功能化的最新进展。原始MOF，MOF衍生物和MOF复合材料包含在此讨论中。阐述了每种改性隔板的电化学性能增强的机理。此外，提供了该有希望的领域的前景。