Title: Preparation of carbon material for supercapacitor by vacuumizing
Abstract: By vacuumizing method,BP2000 carbon owning large specific surface area was prepared in supercapacitor.The performance of the capacitor was studied by cyclic voltammograms,constant current charge/discharge methods and impedance test.The best time of vacuumizing was 30 min,the specific capacitance of carbon electrode was 260.1 F/g,more than that of original carbon electrode 200%;the specific capacitance of capacitor was 84.01 F/g that enhanced by 85.17% than that of no-vacuumizing;also the specific capacitance of 1 000 times declined 34.9% under current density of 3 A/g.These results show that the capacitor has the typical character of capacitance.
Publication Year: 2012
Publication Date: 2012-01-01
Language: en
Type: article
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