Cobalt decorated nitrogen doped carbon nanofibers (Co, N-CNFs) were successfully fabricated by electrospinning technique based the cobalt based zeolitic-imidazolate frameworks-67 (ZIF-67)/PAN solution as precursor. The as-synthesize fibrous Co, N-CNFs membrane was employed as positive current collector containing Li₂S₆ catholyte solution for lithium sulfur batteries. Co, N-CNFs inhibited the dissolution of polysulfides shuttle effect and demonstrated as positive catalyst accelerating kinetic redox reaction of lithium polysulfides/sulfide. In addition, metallic cobalt achieves the purpose of reducing polarization and increasing specific capacity by promoting nucleation of lithium sulfide on the surface of Co, N-CNFs. Li₂S₆ catholyte impregnated Co, N-CNFs electrode (sulfur loading: 4.74 mg) exhibits the first discharge capacity of 1166 mA h g⁻¹ and matins at 938 mA h g⁻¹ after 300 cycles at 0.2 C, which is superior cycling performance than N-CNFs. Even at 7.11 mg sulfur loading, the composite electrode shows a high area capacity of 6.47 mA h cm⁻². Furthermore, a steady-state of lithium anode resulting through effective suppression of polysulfide shuttle effect is also demonstrated to contribute significantly to enhance electrochemical performance.

以钴基沸石-咪唑酸盐骨架67（ZIF-67）/ PAN溶液为前驱体，通过电纺技术成功制备了钴修饰的氮掺杂碳纳米纤维（Co，N-CNFs）。将合成的纤维状Co，N-CNFs膜用作包含锂硫电池的Li ₂ S ₆阴极电解液的正极集电器。Co，N-CNFs抑制了多硫化物穿梭效应的溶解，并被证明是促进多硫化锂/硫化物动力学还原反应的正催化剂。另外，金属钴通过促进Co，N-CNF表面上的硫化锂的成核作用，达到减少极化和增加比容量的目的。锂₂ S ₆阴极浸渍的Co，N-CNFs电极（硫负载：4.74 mg）在0.2 C下300次循环后显示出1166 mA hg ^-1的初次放电容量和938 mA hg ^-1的苦参碱，其循环性能优于N-CNFs 。即使在硫负荷为7.11mg的情况下，复合电极也显示出6.47mA·h·cm ^-2的高面积容量。此外，还证明了通过有效抑制多硫化物的穿梭效应而产生的锂阳极的稳定状态，可显着提高电化学性能。