Printable carbon-based supercapacitors reinforced with cellulose and conductive polymers

•We have demonstrated a method for the sustainable, large-scale printing of supercapacitors using cellulose and conducting polymers.•Printable conductive polymer, cellulose and carbon inks for supercapacitors provide superior characteristics compared to those previous.•Minimal amount of PEDOT:PSS (10%) incorporated for optimal performance and cost effectiveness.•Evidence to support PEDOT:PSS and cellulose act as a glue for the inks.