Electrochemically characterized energy storage properties of Ni foam/poly (EGDMA-Co-VPCA)/SWCNT composite electrode produced by surface polimerization method

• Published in: Materials letters Vol. 299; p. 130100
• Main Authors: Yildirim, H., Tokgoz, S.R., Peksoz, A., Kara, A.
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 15.09.2021; Elsevier BV
• Subjects: Capacitance retention; Carbon nanotubes; Charge–discharge; Discharge; Electrochemical impedance spectroscopy; Electrodes; Energy storage; Flux density; Materials science; Metal foams; Polymeric composites; Substrates; Polymeric composites; Carbon nanotubes; Capacitance retention; Charge–discharge; Energy storage
• ISSN: 0167-577X; 1873-4979
• DOI: 10.1016/j.matlet.2021.130100

•New Ni foam/poly (EGDMA-co-VPCA)/SWCNT composite electrode is successfully produced.•Excellent energy storage capacity with high specific capacitance of 100 F/g at 5 A/g.•High power density of 3285.0 W/kg at 8.5 Wh/kg energy density.•Capacitive retention of 77.7% after 5000 charge–discharge cycles and high chemical stability.•Higher energy storage properties than the earlier reports in the literature. Poly (EGDMA-co-VPCA)/SWCNT composite film is successfully synthesized on Ni foam substrate by surface polymerization technique. Energy storage properties of Ni foam/poly (EGDMA-co-VPCA)/SWCNT composite electrode are investigated via cyclic voltammetry, galvanostatic charge–discharge and electrochemical impedance spectroscopy. The as-prepared Ni foam/poly (EGDMA-co-VPCA)/SWCNT composite electrode exhibits high specific capacitance of 100 F/g at 5 A/g, high power density of 3285.0 W/kg at 8.5 Wh/kg energy density, capacitive retention of 77.7% after 5000 charge–discharge cycles and excellent chemical stability.