‘Corn-on-the-cob’ structured ZnS nanoparticles anchored on porous carbon nanofibers (ZnS/PCNFs) were rationally designed and prepared using preoxidized PVA/PTFE nanofibers as porous matrix precursors through subsequent solvothermal and carbonization. The obtained ZnS/PCNFs composite as anode material for lithium ion batteries exhibit a promising cycling performance with high reversible capacity of 718 mAh g⁻¹ at 0.2 A g⁻¹ after 150 cycles and excellent rate capability with discharge capacity of 438 mAh g⁻¹ at 2 A g⁻¹. The prominent battery performance of ZnS/PCNFs electrode might be ascribed to the distinct hybrid structure, where the uniformly arranged nanosized ZnS ‘corns’ endowed the hybrid with excellent lithium capacitive performance, and the rationally designed PCNFs ‘cob’ with large specific surface area not only improved the conductivity but also enhanced the diffusion of electrolyte and ion movement within the hybrid.

使用预氧化的PVA / PTFE纳米纤维作为多孔基质前体，通过随后的溶剂热和碳化，合理设计和制备了锚定在多孔碳纳米纤维（ZnS / PCNFs）上的“玉米芯”结构的ZnS纳米颗粒。获得的作为锂离子电池负极材料的ZnS / PCNFs复合材料具有良好的循环性能，在150次循环后，在0.2 A g ^-1下具有718 mAh g ^-1的高可逆容量，放电容量为438 mAh g ^-1时具有出色的倍率能力在2 A g ^-1。ZnS / PCNFs电极杰出的电池性能可能归因于独特的混合结构，其中均匀排列的纳米ZnS“玉米”赋予了混合电池优异的锂电容性能，而合理设计的具有较大比表面积的PCNFs“芯”却没有。不仅提高了电导率，而且还增强了混合液中电解质的扩散和离子的运动。