Carbon Microtube Textile with MoS(2) Nanosheets Grown on Both Outer and Inner Walls as Multifunctional Interlayer for Lithium–Sulfur Batteries

The shuttle effect of soluble lithium polysulfides during the charge/discharge process is the key bottleneck hindering the practical application of lithium–sulfur batteries. Herein, a multifunctional interlayer is developed by growing metallic molybdenum disulfide nanosheets on both outer and inner walls of cotton cloth derived carbon microtube textile (MoS(2)@CMT). The hollow structure of CMT provides channels to favor electrolyte penetration, Li(+) diffusion and restrains polysulfides via physical confinement. The hydrophilic and conductive 1T‐MoS(2) nanosheets facilitate chemisorption and kinetic behavior of polysulfides. The synergic effect of 1T‐MoS(2) nanosheets and CMT affords the MoS(2)@CMT interlayer with an efficient trapping‐diffusion‐conversion ability toward polysulfides. Therefore, the cell with the MoS(2)@CMT interlayer exhibits enhanced cycling life (765 mAh g(−1) after 500 cycles at 0.5 C) and rate performance (974 mAh g(−1) at 2 C and 740 mAh g(−1) at 5 C). This study presents a pathway to develop low‐cost multifunctional interlayers for advanced lithium–sulfur batteries.