Hierarchical porous carbon co-doped with heterogeneous atoms has attracted much attention thanks to sizable internal void space accommodating electrolyte, high-density microporous structure physically confining polysulfides (LPS), and heterogeneous atoms serving as active sites to capture LPS. However, solely relying on carbon material defects to capture LPS proves ineffective. Hence, metal compounds must be introduced to chemisorb LPS. Herein, cobalt ions are in-situ grown on the polydopamine layer coated on the surface of biomass-derived S, N, P co-doped hierarchical porous carbon (SNP-PC). Then a layer of nitrogen-doped porous carbon (MPC) dotted with CoSe nanoparticles is acquired by selenizing. Thus, a strong-polar/weak-polar composite material of SNP-PC studded with CoSe nanoparticles is obtained (SNP-PC@MPC@CoSe). Button cells assembled with SNP-PC@MPC@CoSe-modified separator enable superb long-cycle stability and satisfactory rate performance. An excellent rate capacity of 796 mAh g⁻¹ at a high current rate of 4 C with an ultra-low capacity fading of 0.06% over 700 cycles can be acquired. More impressively, even in a harsh test condition of 5.65 mg cm⁻² sulfur loading and 4 μL mg⁻¹ ratio of electrolyte to active materials, the battery can still display a specific capacity of 980 mAh g⁻¹ (area capacity of ∼5.54 mAh cm⁻²) at 0.1 C. This work provides a promising route toward high-performance Li-S batteries.

由于可容纳电解质的较大的内部空隙空间、物理限制多硫化物（LPS）的高密度微孔结构以及作为捕获LPS的活性位点的异质原子，与异质原子共掺杂的分级多孔碳引起了广泛关注。然而，仅仅依靠碳材料缺陷来捕获 LPS 被证明是无效的。因此，必须将金属化合物引入化学吸附 LPS。在此，钴离子是原位的生长在涂在生物质衍生的 S、N、P 共掺杂分级多孔碳 (SNP-PC) 表面上的聚多巴胺层上。然后通过硒化获得一层点缀有CoSe纳米颗粒的氮掺杂多孔碳（MPC）。因此，获得了镶嵌有CoSe纳米粒子的SNP-PC的强极性/弱极性复合材料（SNP-PC@MPC@CoSe）。使用 SNP-PC@MPC@CoSe 改性隔膜组装的纽扣电池具有出色的长循环稳定性和令人满意的倍率性能。^{在 4 C 的高电流速率下，可以获得 796 mAh g -1}的优异倍率容量，在 700 次循环中具有 0.06% 的超低容量衰减。^{更令人印象深刻的是，即使在 5.65 mg cm -2}硫含量和 4 μL mg ^-1的严苛测试条件下在电解液与活性材料的比例下，电池在 0.1 C 时仍可显示出 980 mAh g ^-1的比容量（面积容量约为 5.54 mAh cm ^-2）。这项工作为高性能 Li-S 电池提供了一条有希望的途径.