公开(公告)号：WO2021022337A1

公开(公告)日：2021-02-11

申请号：PCT/AU2020/050812

申请日：2020-08-06

Applicant: UNIVERSITY OF TECHNOLOGY SYDNEY

Inventor： IACOPI, Francesca ,  AMJADI POOR, Mojtaba ,  SU, Dawei

IPC: H01G11/34 ,  H01G11/36 ,  H01G11/56 ,  H01G11/86

Abstract: A process for producing a solid-state supercapacitor, including the steps of: forming at least one pair of mutually spaced electrodes, each said electrode including a graphene surface layer; and introducing a gel electrolyte between the mutually spaced electrodes and onto the graphene surface layer of each electrode to form a double layer supercapacitor, wherein the gel electrolyte is water-based and does not include a redox agent; and applying a voltage across each pair of electrodes to generate an electric field strong enough to decompose water between the mutually spaced electrodes by hydrolysis and functionalise a surface of the electrodes to substantially increase capacitance of the supercapacitor in the absence of a redox agent, the increased capacitance arising from at least one of electrical double layer capacitance of the electrodes and redox reaction capacitance.