Figure 2. Schematics of the fabrication process of a branched CNC based supercapacitor and its optical images.

(a) First the CNC films are transferred to PDMS and released by dissolving AAO templates. Then the gel-electrolyte (as electrolyte-separator) is sandwiched between two CNC electrodes (as electrode-current collector) with 12µm thickness and solidifies after evaporation of water. Optical pictures demonstrating (b) transparent and (c) flexible natures of CNCs supercapacitor devices.