Advanced symmetric supercapacitor of spinel NiCo2O4-incorporated 2D g-C3N4 electrodes in a PVA–KOH gel-electrolyte-based pouch cell

Key Points

• The synergistic nanocomposite significantly enhances supercapacitor performance in pouch cells, improving energy density.
• The incorporation of g-C3N4 with NiCo2O4 leads to a higher charge storage capability, creating an efficient energy device.
• The method utilized involved developing a gel-electrolyte-based pouch cell to optimize energy performance and stability.
• This advancement may enable broader applications in energy storage solutions, promising better efficiency and longevity.