Highly Nanoporous Nickel Foam as Current Collectors in 3D All-Solid-State Microsupercapacitors.

ABSTRACT: This study reports a streamlined method for producing a highly nanoporous current collector with a substantial specific surface area, serving as an electrode for microsupercapacitors (MSCs). Initially, commercial Ni foams are patterned into an interdigitated structure by laser cutting. Subsequently, the Ni foams are infused with NiO nanopowders through dip coating, sintering, and reduction in an H₂ atmosphere, followed by the growth of MnO₂ through a redox reaction. The incorporation of NiO within this three-dimensional Ni current collector results in notable porosity within the range of approximately 200-600 nm. Such a 3D, highly nanoporous electrode dramatically increases the specific surface area by 30 times and substantially boosts the amount of active material de

SUBMITTER: Wardhana BS 

PROVIDER: S-EPMC11375808 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature