Printed energy storage devices by integration of electrodes and separators into single sheets of paper

摘要

We report carbon nanotube thin film-based supercapacitors fabricated with printing methods, wherenelectrodes and separators are integrated into single sheets of commercial paper. Carbon nanotubenfilms are easily printed with Meyer rod coating or ink-jet printing onto a paper substrate due to thenexcellent ink absorption of paper. A specific capacity of 33 F/g at a high specific power of 250 000nW/kg is achieved with an organic electrolyte. Such a lightweight paper-based supercapacitor couldnbe used to power paper electronics such as transistors or displays.