Highly flexible freestanding carbon nanofibers were electroplated with silver for use in supercapacitor applications. The brittle carbon nanofibers were encased within bendable silver shells to provide superior flexibility and resilience of the supercapacitors. The enhanced electrical conductivity derived from the silver shell structure dramatically increased the capacitance of the supercapacitor. The silver shell also conferred structural stability to the carbon core, thus furnishing stable, long-term electrode performance. Nearly 100% of the specific capacitance was retained after N = 10,000 galvanostatic charge-discharge cycles. The mechanical endurance or stability of the fabricated electrode was evaluated using 1,000 bending cycles, demonstrating that the electrode performance remained unchanged. Cyclic voltammetry and galvanostatic discharge curves were measured at various scan rates and current densities. The fabricated electrodes were characterized by scanning electron microscopy, X-ray photoelectron spectroscopy, and transmission electron microscopy, which clearly illustrated the carbon-core and silver-shell structure.

高度柔性的独立式碳纳米纤维电镀有银，用于超级电容器应用。脆性碳纳米纤维被包裹在可弯曲的银壳中，以提供超级电容器的卓越的柔韧性和回弹力。从银壳结构获得的增强的电导率极大地增加了超级电容器的电容。银壳还赋予碳核结构稳定性，从而提供稳定的长期电极性能。N后保留了几乎100％的比电容 = 10,000个恒电流充放电循环。使用1,000次弯曲循环评估所制造电极的机械耐久性或稳定性，证明电极性能保持不变。在各种扫描速率和电流密度下测量循环伏安法和恒电流放电曲线。制备的电极通过扫描电子显微镜，X射线光电子能谱和透射电子显微镜进行表征，清楚地说明了碳核和银壳结构。