Preparation of nano-networks of MnO2shell/Ni current collector core for high-performance supercapacitor electrodes

02 engineering and technology 0210 nano-technology 7. Clean energy
DOI: 10.1039/c1jm13894d Publication Date: 2011-11-10T10:29:08Z
ABSTRACT
A novel architecture of nickel current collector (NCC) is fabricated cost-effectively by electrospinning. An ultrathin MnO2 coating is electrodeposited on to the NCC and the resultant nano-networks of MnO2 shell/NCC core are used as supercapacitor electrodes. Excellent electrochemical performance is revealed at a high charge/discharge rate. The cyclic voltammetry measurements show that the current is stable even at a scan rate as fast as 200 mV s−1. A capacitance of 214 F g−1 is obtained by galvanostatic testing at a current density as large as 20 A g−1, which is much higher than that of MnO2 coated Ni foam.
SUPPLEMENTAL MATERIAL
Coming soon ....
REFERENCES (33)
CITATIONS (86)
EXTERNAL LINKS
PlumX Metrics
RECOMMENDATIONS
FAIR ASSESSMENT
Coming soon ....
JUPYTER LAB
Coming soon ....