A strategy to construct amphiphilic inner surfaces with hydrophilic N, S−O and C−S−C sites in porous carbon is presented for applications in Li₂S batteries. The amphiphilic porous carbon (APC) with high wettability, specific surface area, and polysulfide (PS) absorption ability is obtained through the pyrolysis of a glucose−thiourea resin with a nano‐CaCO₃ template. Furthermore, a Li₂S‐loaded APC is developed in which Li₂SO₄ is employed instead of CaCO₃. Li₂SO₄ is not only a reactant for Li₂S production, but also functions as a template to form mesopores. Sulfur blending in the Li₂S electrode successfully improves the electrode activation. The initial capacity decay is suppressed significantly after the Li₂S electrode is modified with a protective layer composed of polyethylene oxide and polybenzimidazole. The first discharge capacity reaches 1082 mAh g⁻¹ Li₂S (equivalent to 1554 mAh g⁻¹ S). The resultant Li₂S battery exhibits excellent cyclability. A discharge capacity as high as 565 mAh g⁻¹ is retained after 300 cycles at a discharge rate of 0.5 C. A rate capacity of 376 mAh g⁻¹ is achieved at 5 C.

中文翻译：

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Li2S负载的两亲多孔碳的原位合成和长寿命Li2S电池的Li2S电极改性

提出了一种在多孔碳中构建具有亲水性N，S-O和C-S-C位的两亲性内表面的策略，以用于Li ₂ S电池。具有高润湿性，比表面积和多硫化物（PS）吸收能力的两亲多孔碳（APC）是通过使用纳米CaCO ₃模板对葡萄糖硫脲树脂进行热解而获得的。此外，开发了使用Li ₂ S的APC，其中使用Li ₂ SO ₄代替CaCO ₃。Li ₂ SO ₄不仅是生产Li ₂ S的反应物，而且还起形成中孔的模板的作用。Li ₂中的硫共混S电极成功地改善了电极的活化性。用由聚环氧乙烷和聚苯并咪唑组成的保护层修饰Li ₂ S电极后，初始容量衰减得到显着抑制。第一放电容量达到1082mAh g ^-1 Li ₂ S（相当于1554mAh g ^-1  S）。所得的Li ₂ S电池表现出优异的循环性。300次循环后，以0.5 C的放电速率可保持高达565 mAh g ^-1的放电容量。在5 C时可获得376 mAh g ^-1的速率容量。