Effective adsorption and catalysis are vital in developing high-efficient and stable lithium-sulfur (Li–S) batteries. Here, a coral-like porous composite containing molybdenum sulfide (rGO/MoS₂/C) as interlayer on the separator to mitigate polysulfide shuttling. Since the rGO/MoS₂/C composite exhibits promising electrolyte wetting properties with a large specific surface area, which can be fully utilized for the adsorption of lithium polysulfides (LiPSs). In addition, the molybdenum sulfide active site can effectively bind to and catalyze the conversion of LiPSs, further preventing the penetration of LiPSs. As a result, the assembled device shows excellent cycle stability with a low capacity decay of 0.022% per cycle over 1000 cycles (2.0C). In addition, the device still preserves a decent cycle ability even at low electrolyte and high sulfur loading conditions. This work presents a feasible strategy to anchor and accelerate the conversion of LiPSs by designing multifunctional transition metal sulfide composites with high adsorption properties and catalytic activity to achieve stable cycle of Li–S batteries.

有效的吸附和催化对于开发高效稳定的锂硫（Li–S）电池至关重要。_{在这里，含有硫化钼 (rGO/MoS 2} /C)的珊瑚状多孔复合材料作为分离器上的夹层，以减轻多硫化物的穿梭。由于 rGO/MoS ₂/C复合材料表现出良好的电解质润湿性能，具有较大的比表面积，可充分用于多硫化锂（LiPSs）的吸附。此外，硫化钼活性位点可以有效结合并催化LiPSs的转化，进一步阻止LiPSs的渗透。因此，组装的器件表现出优异的循环稳定性，在 1000 次循环 (2.0C) 中，每个循环的容量衰减仅为 0.022%。此外，即使在低电解质和高硫负载条件下，该器件仍然保持良好的循环能力。这项工作提出了一种可行的策略，通过设计具有高吸附性能和催化活性的多功能过渡金属硫化物复合材料来锚定和加速LiPSs的转化，以实现Li-S电池的稳定循环。