30.06.2020 •

A Novel Slicing Method for Thin Supercapacitors

Thin and flexible supercapacitors with low cost and uniform thicknesses were fabricated by a new and efficient slicing method. The morphology of the thin supercapacitors was analyzed by scanning electron microscopy and laser scanning confocal microscopy, which revealed uniform thicknesses and well-formed interfaces between the electrode and the gel electrolyte. Tunable output voltages and energies were realized with a maximum specific capacitance of 248.8 F g-1 or

150.8 F cm-3. The devices showed a maintained 96% of the maximum specific capacitance after 300 cycles, and 91% specific capacitance retention when bent to a maximum angle of 180°.

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