Lithium‑sulfur batteries (LSBs) have been investigated as promising electrochemical energy storage owing to their high theoretical energy density. However, practical applications of LSBs are still hindered by rapid capacity decay and short cycle life, especially at high rates. Here, highly hierarchical sparse Co-nanowire/carbon nanofiber/sulfur arrays (CoNws/CNFs/S) were fabricated inside porous alumina template using a combination of electrodeposition, polymer pyrolysis, and infiltration methods. As a consequence, the sulfur host structure made with CoNWs/CNFs can deliver high rate capability and cycle stability with a high capacity of 1010 mAh g-1 and a low capacity fading rate of 0.3% per cycle (after 200 cycles under a rate of 1C). Our result suggests that designing hybrid coaxial architecture could represent an attractive path to improve high power density LSBs.

锂硫电池（LSB）由于其高理论能量密度而被研究为有前途的电化学储能。然而，LSB的实际应用仍然受到容量快速衰减和循环寿命短的阻碍，尤其是在高倍率下。在这里，使用电沉积、聚合物热解和渗透方法的组合，在多孔氧化铝模板内制造了高度分层的稀疏 Co-nanowire/碳纳米纤维/硫阵列 (CoNws/CNFs/S)。因此，由 CoNWs/CNFs 制成的硫主体结构可以提供高倍率性能和循环稳定性，具有 1010 mAh g-1 的高容量和每循环 0.3% 的低容量衰减率（在 200 次循环后1C)。