Application of O-Co3S4/CP capable of adsorbing lithium polysulfide as positive electrode material of lithium-sulfur battery

The invention discloses application of an O-Co3S4/CP material capable of adsorbing lithium polysulfide as a positive electrode material of a lithium-sulfur battery. The O-Co3S4/CP material comprises carbon paper and oxygen-doped cobaltosic sulfide, the oxygen-doped cobaltosic sulfide grows on a fiber skeleton of the carbon paper and is of a hollow sheet scabbard-shaped structure; and the oxygen content of the O-Co3S4/CP material is 10 to 35 at%. The experimental preparation method is simple, mild and environment-friendly, oxygen doping can be carried out in situ while vulcanization is carried out, the prepared material has good adsorption performance on lithium polysulfide when the material is used as the positive electrode material of the lithium-sulfur battery, and the assembled lithium-sulfur battery has good cycle stability. 本申请公开了一种可吸附多硫化锂的O-Co3S4/CP材料作为锂硫电池正极材料的应用，所述O-Co3S4/CP材料包括碳纸和氧掺杂的四硫化三钴；所述氧掺杂的四硫化三钴生长在碳纸的纤维骨架上，呈空心片状的剑鞘形结构；所述O-Co3S4/CP材料的氧含量为10～35at％。本实验制备方法简单温和，环境友好，能够在硫化的同时原位进行氧掺杂，作为锂硫电池正极材料应用时所制备