A new composite sulfur cathode with high sulfur loading for all-solid-state lithium sulfur (LiS) battery, along with an in-situ coating process for preparing this composite cathode, is proposed in this manuscript. This composite cathode includes carbonized cotton fibers as the electron conductive skeleton, sulfide electrolyte coating on the carbon fibers as the Li-ion conductor, and elemental sulfur as the active material. The in-situ coating of sulfide electrolyte is carried out via a liquid-phase process, which results in a close contact between carbon fiber and the sulfide electrolyte. The subsequent mixing and heating treatment with elemental sulfur form a composite cathode with good electrochemical performance. In the assembled all-solid-state LiS battery with Li₆PS₅Cl electrolyte and lithium metal anode, the composite cathode delivers a super high discharge capacity of 32.8 mAh.

本文提出了一种用于全固态锂硫（Li S）电池的具有高硫负载量的新型复合硫阴极，以及原位涂覆工艺来制备该复合阴极。该复合阴极包括碳化的棉纤维作为电子导电骨架，在碳纤维上的硫化物电解质涂层作为锂离子导体，以及元素硫作为活性材料。硫化物电解质的原位涂覆通过液相过程进行，这导致碳纤维和硫化物电解质之间的紧密接触。随后与元素硫的混合和热处理形成具有良好电化学性能的复合阴极。在装配有Li ₆ PS _5的全固态Li S电池中Cl电解质和锂金属阳极，复合阴极可提供32.8 mAh的超高放电容量。