Rational design of the sulfur cathode structure enables effective adsorption of polysulfides and accelerates the sulfur reduction reaction, which is of great significance to the practical application of lithium–sulfur batteries. Here, P-doped carbon foam (PCF) as a sulfur host for the lithium–sulfur battery cathode was successfully synthesized by a facile strategy. The tailored hierarchical pore structure combined with P doping not only facilitates Li⁺ diffusion but also enhances the adsorption and accelerates the catalytic conversion of lithium polysulfides, thus significantly improving lithium storage performance of the PCF/S cathode.

中文翻译：

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迈向高性能锂硫电池：使用 P 掺杂碳泡沫实现多硫化物的高效锚定和催化转化

硫正极结构的合理设计能够有效吸附多硫化物并加速硫还原反应，这对锂硫电池的实际应用具有重要意义。在这里，通过简便的策略成功合成了作为锂硫电池正极硫主体的掺磷碳泡沫（PCF）。量身定制的分级孔结构与P掺杂相结合，不仅促进了Li ⁺扩散，而且增强了吸附并加速了多硫化锂的催化转化，从而显着提高了PCF/S正极的储锂性能。