The lithium–sulfur (Li–S) batteries are promising because of the high energy density, low cost, and natural abundance of sulfur material. Li–S batteries have suffered from severe capacity fading and poor cyclability, resulting in low sulfur utilization. Herein, S-DHCS/CNTs are synthesized by integration of a double-hollow carbon sphere (DHCS) with carbon nanotubes (CNTs), and the addition of sulfur in DHCS by melt impregnations. The proposed S-DHCS/CNTs can effectively confine sulfur and physically suppress the diffusion of polysulfides within the double-hollow structures. CNTs act as a conductive agent. S-DHCS/CNTs maintain the volume variations and accommodate high sulfur content 73 wt%. The designed S-DHCS/CNTs electrode with high sulfur loading (3.3 mg cm⁻²) and high areal capacity (5.6 mAh mg cm⁻²) shows a high initial specific capacity of 1709 mAh g⁻¹ and maintains a reversible capacity of 730 mAh g⁻¹ after 48 cycles at 0.2 C with high coulombic efficiency (100%). This work offers a fascinating strategy to design carbon-based material for high-performance lithium–sulfur batteries.

锂硫（Li–S）电池因其高能量密度，低成本和自然的硫物质含量而很有前途。Li-S电池容量严重下降，循环能力差，导致硫利用率低。在此，通过将双空心碳球（DHCS）与碳纳米管（CNT）整合，并通过熔融浸渍在DHCS中添加硫来合成S-DHCS / CNT。所提出的S-DHCS / CNT可以有效地限制硫并物理上抑制多硫化物在双空心结构内的扩散。CNT充当导电剂。S-DHCS / CNT保持体积变化并容纳73 wt％的高硫含量。设计的S-DHCS / CNTs电极具有高硫负荷（3.3 mg cm ^-2）和高面容量（5.6 mAh mg cm^-2）显示出1709 mAh g ^-1的高初始比容量，并且在0.2 C下经过48次循环后以库仑效率（100％）保持了可逆容量730 mAh g ^-1。这项工作为设计高性能锂硫电池的碳基材料提供了一种引人入胜的策略。