Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5457167 | Solid State Communications | 2017 | 6 Pages |
Abstract
A High energy, asymmetric supercapacitor (ASC) has been constructed using porous manganese oxide (MnO2) nanostructures as positive electrode and reduced graphene oxide (RGO) as negative electrode in 1 M Na2SO4 electrolyte. The ASC device exhibits excellent electrochemical performance, when the device is assembled with optimal mass ratio. The energy density is 22.2 W h kgâ1 at a power density of 101 W kgâ1, when the device is cycled reversibly in the high potential range of 0-2 V. The asymmetric supercapacitor device also exhibits a superior cycling stability with 90% retention of the initial specific capacitance after 3000 cycles.
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Physical Sciences and Engineering
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Materials Science (General)
Authors
S. Shivakumara, N. Munichandraiah,