fig3

Figure 3. (A) Schematic diagram of MSC device based on Ti₃C₂T_x MXene interdigital electrode and AG/sweat electrolyte; (B) Cyclic voltammograms at different scan rates; (C) GCD curves and (D) the obtained capacitance at different current densities; (E) Comparison of EIS spectra of MSC devices with and without electrolytes and different types of electrolyte salts; (F) CV curves of the device bent at different angles; (G) Capacitance retention during the bending process of the device attached to the wrist area; (H) The cycling stability of the device at a certain current density (the inset shows the typical GCD curves); (I) CV curves of multiple MSCs connected in parallel and series. MSC: Micro-supercapacitor; AG: agarose; GCD: galvanostatic charge-discharge; EIS: electrochemical impedance spectroscopy; CV: cyclic voltammetry.