The rational design of a host material with strong adsorption and excellent electrical conductivity function for sulfur cathode to suppress the shuttle effects of soluble lithium polysulfide (LiPS) is crucial to advance the lithium–sulfur (Li–S) battery for future commercial applications. In this work, we designed a three-dimensional (3D) carbon fiber aerogel with graphene-like oxygenated carbon nitrogen (OCN) and TiO₂ (OCNF–TiO₂) as a sulfur anchoring material for Li–S battery and explored the regulating effects of TiO₂ on the electrochemical performances. The OCNF–TiO₂/S cathode presents an initial discharge-specific capacity of 1039 mAh/g (0.1C), a rate capacity of 690 mAh/g at 1C, a cycling performance with a capacitance retention of 72.1%, and the decay of 0.13% per cycle after 200 cycles at 0.5C.

合理设计具有强吸附性和优异导电功能的硫正极基质材料来抑制可溶性多硫化锂（LiPS）的穿梭效应，对于推进锂硫（Li-S）电池的未来商业应用至关重要。_{在这项工作中，我们设计了一种具有类石墨烯氧化碳氮（OCN）和TiO 2}（OCNF-TiO ₂）的三维（3D）碳纤维气凝胶作为Li-S电池的硫锚定材料，并探讨了其调节作用TiO ₂对电化学性能的影响。OCNF-TiO ₂ /S正极的首次放电比容量为1039mAh/g（0.1C），1C倍率容量为690mAh/g，循环性能电容保持率为72.1%，衰减性能良好。在 0.5C 下经过 200 个循环后，每个循环的损耗为 0.13%。