•Researchers at the Government College for Women, Thiruvananthapuram, have devised a method to produce activated carbon, suitable for supercapacitor fabrication, from coconut husks, which are a major agricultural residue in Kerala.
•Supercapacitors, with significantly higher capacitance and energy storage capacity than conventional capacitors, have emerged as a vital component in quest for sustainable energy storage solutions. The prototype supercapacitors made of coconut husk-derived activated carbon to be four-times more efficient than the existing supercapacitors.
•The findings have been published in the American Sustainable Resource Management Journal.