Zeolitic imidazolate framework-derived carbon (ZC) material and ZC-sulfur (ZC-S) composite were prepared successfully via a solution method accompanied by facile carbonization and subsequent sulfur impregnation. The ZC and ZC-S materials kept the basic polyhedral morphology of the zeolitic imidazolate framework crystals. Sulfur is homogeneously distributed over and in the ZC porous matrix with a 51.0% sulfur mass content in ZC-S composite. The ZC material exhibits good electrochemical performances in lithium-ion batteries. After 100 cycles at 0.1 A g⁻¹, a reversible discharge capacity of 619 mAh g⁻¹ is still retained, which is benefitted by the micro/mesopores and specific surface area of the synthesized ZC material. When integrated into lithium-sulfur batteries as a cathode, the ZC-S composite exhibits stable discharge capacity of 850 mAh g⁻¹ after 100 cycles at 0.1 C (1 C = 1670 mA g⁻¹). The increased electrochemical properties of the ZC-S electrode compared to the pristine S electrode may be attributed to the advantageous effects of the ZC porous matrix, which serve as a conductive frame promoting electron and lithium ion transportation and provide abundant active sites to increase electrochemical activity and ensnare soluble polysulfides efficiently.

通过溶液法伴有容易的碳化和随后的硫浸渍，成功地制备了由沸石衍生的咪唑酸酯骨架碳（ZC）材料和ZC-硫（ZC-S）复合材料。ZC和ZC-S材料保持了沸石咪唑盐骨架晶体的基本多面体形态。硫均匀分布在ZC多孔基质中和ZC-S复合材料中，硫质量含量为51.0％。ZC材料在锂离子电池中表现出良好的电化学性能。在0.1 A g ^-1下循环100次后，可逆放电容量为619 mAh g ^-1仍然保留有残余金属，这得益于合成ZC材料的微孔/中孔和比表面积。当作为阴极集成到锂硫电池中时，ZC-S复合材料在0.1 C（1 C = 1670 mA g ^-1）下经过100次循环后，显示出850 mAh g ^-1的稳定放电容量。与原始S电极相比，ZC-S电极增强的电化学性能可归因于ZC多孔基质的有利作用，该基质可作为促进电子和锂离子传输的导电框架并提供丰富的活性位点以增加电化学活性并有效地诱捕可溶性多硫化物。