The galvanostatic charge-discharge profile of the coated textile supercapacitor was also investigated in Figure . Similar to screen-printed supercapacitors, coated textile-based supercapacitors also exhibited an almost symmetrical triangular shape indicating a good capacitive behaviour. It is noted that the charge-discharge time at 0.1 mAcm -2 took around 37 seconds which is more than the screen-printed supercapacitor of around 24 seconds. As we previously said, more active material accumulation occurs in the case of coating than in printing, it increases the capacitive performance as well as improves the charge-discharge duration. Similar to the screen-printed supercapacitor, the slight voltage drop at the beginning occurs due to the energy consumption of the device's equivalent series resistance (ESR). The ESR of the coated supercapacitor was ~8.62 Ω at a lower frequency (1 kHz) and decreased to ⁓ 2.19 Ω at a higher frequency range (50 kHz), indicated by the Nyquist plot, Figure with an overall device area of 1 cm 2 . The quasi-vertical straight line at low frequency in EIS also indicates good capacitive behaviour. We also investigated the long-term charge-discharge curves at a current density of 1 mA cm -2 to analyse the electrochemical stability of the supercapacitor. The MOF-coated supercapacitor maintained ⁓97.9% of its initial capacitance after 1,000 cycles, (Figure ). Inset represents the consistent CV profiles of the supercapacitor throughout the cycles. Figure shows the charge-discharge curves of the 990 th to 1000 th cycle in the GCD tests. The MOF-coated textile supercapacitor exhibited a high areal energy density of ~199.66 µWh cm -2 and a high power density of ~55291.54 µW cm -2 . The specific energy density and power densities were calculated as ~13.68 Wh kg -1 and ~3787.09 W kg -1 , respectively.