Lithium-sulfur batteries is promising for the next-generation advanced energy storage systems, which have attracted a great deal of attention in recent years. However, the majority of substrates with both high electronic conductivity and full coverage of adsorption-catalysis synergy are difficult to achieve. Here, porous Mo₂C nanofibers are successfully synthesized via using carbon fiber as a hard template, which Mo₂C nanofibers as substrates exhibit high electron conductivity and fully covered adsorption sites. The cathode delivers an initial discharge capacity of ≈1080 mA h g⁻¹ (at 0.1 C), and shows highly exposed (121) plane of Mo₂C for anchoring and catalyzing Li₂S. The excellent electrochemical performance indicates that the design offers a sample and practical avenue to develop highly-stable lithium-sulfur batteries.

锂硫电池有望用于下一代先进的储能系统，近年来引起了广泛关注。然而，大多数具有高电子电导率和吸附-催化协同作用的完全覆盖的底物难以实现。在这里，通过使用碳纤维作为硬模板成功合成了多孔Mo ₂ C纳米纤维，Mo ₂ C纳米纤维作为基材具有高电子传导性和完全覆盖的吸附位点。阴极的初始放电容量为≈ 1080 mA h g ^{− 1}（在 0.1 C 下），并显示出高度暴露的 Mo ₂ C （121）面，用于锚定和催化 Li ₂S. 优异的电化学性能表明该设计为开发高稳定性锂硫电池提供了一个样本和实用途径。