Zhang Bing, Li Shikang, Qureshi M Shafin H, Mia Ukil, Ge Zhenghui, Song Aiping
College of Mechanical Engineering, Yangzhou University, Yangzhou 225127, China.
State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an 710049, China.
Polymers (Basel). 2022 Dec 1;14(23):5250. doi: 10.3390/polym14235250.
Three-dimensional (3D) printing has been widely utilized to fabricate free-standing electrodes in energy-related fields. In terms of fabrication, the two most challenging limitations of 3D printed electrodes are the poor printing resolution and simple structural dimension. Here we proposed a novel process to fabricate molybdenum disulfide-polyvinylidene fluoride (MoS-PVDF) hierarchical electrodes for energy storage applications. The 20-layer microscale PVDF films with a stable fiber width of 8.3 ± 1.2 μm were fabricated by using electrohydrodynamic (EHD) printing. MoS nanostructures were synthesized and assembled on the microscale PVDF fibers by using hydrothermal crystal growth. The structural and material investigations were conducted to demonstrate the geometrical morphology and materials component of the composite structure. The electrochemical measurements indicated that the MoS-PVDF electrodes exhibited the typical charge-discharge performance with a mass specific capacitance of 60.2 ± 4.5 F/g. The proposed method offers a facile and scalable approach for the fabrication of high-resolution electrodes, which might be further developed with enhanced specific capacitance in energy storage fields.
三维（3D）打印已被广泛应用于能源相关领域中独立电极的制造。在制造方面，3D打印电极面临的两个最具挑战性的限制是打印分辨率低和结构尺寸单一。在此，我们提出了一种新颖的工艺来制造用于储能应用的二硫化钼-聚偏氟乙烯（MoS-PVDF）分级电极。通过使用电流体动力学（EHD）打印技术制备了具有稳定纤维宽度8.3±1.2μm的20层微尺度PVDF薄膜。利用水热晶体生长法在微尺度PVDF纤维上合成并组装了MoS纳米结构。通过结构和材料研究来展示复合结构的几何形态和材料组成。电化学测量表明，MoS-PVDF电极表现出典型的充放电性能，质量比电容为60.2±4.5F/g。所提出的方法为高分辨率电极的制造提供了一种简便且可扩展的途径，在储能领域可能会随着比电容的提高而得到进一步发展。
