“…The ongoing surge in the demand for wearable and smart electronic devices has inspired the pursuit of high-performance flexible energy storage systems with cost-effectiveness, long cycle life, and shape diversity. The successfully developed energy storage systems include solar cells, chemical batteries, and supercapacitors. , Among them, supercapacitors have received much attention in the past few years due to their high power density, good reversibility, security, and environmental friendliness. − However, the commercialization and application of supercapacitors on wearable electronics are hindered by the poor flexibility and integration given that conventional supercapacitors are bulky and heavy. , Regarding the requisitions as stated above, a fabric-based flexible supercapacitor provides an ideal solution because textile substrates show excellent mechanical flexibility, light weight, and easy integration into daily-used garments. , Hu et al coated a single-walled carbon nanotube (SWCNT) ink on a fabric substrate to fabricate flexible electrodes and supercapacitors whose specific capacitance reached 80 F g –1 at a current density of 20 mA cm –2 . In addition to electrode substrates, − the textiles can also be used as separators , due to the intrinsically porous structure and insulating properties.…”