کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1272171 | 1497479 | 2014 | 9 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: High energy density PbO2/activated carbon asymmetric electrochemical capacitor based on lead dioxide electrode with three-dimensional porous titanium substrate High energy density PbO2/activated carbon asymmetric electrochemical capacitor based on lead dioxide electrode with three-dimensional porous titanium substrate](/preview/png/1272171.png)
• High-capacity 3D-Ti/PbO2 electrode is electrodeposited.
• The 3D-Ti/PbO2 electrode has large electrochemical active surface area.
• An AEC is developed by using 3D-Ti/PbO2 electrode as positive electrode.
• The 3D-Ti/PbO2/AC AEC exhibits a high level of energy density.
A PbO2/AC asymmetric electrochemical capacitor (AEC) with energy density as high as 49.4 Wh kg−1, power density of 433.2 W kg−1 and specific capacitance of 135.2 F g−1 was fabricated with PbO2 electrodeposited on three-dimensional porous titanium (3D-Ti/PbO2) and activated carbon. The high electrochemical active surface of 3D-Ti/PbO2 resulted in high specific capacity making it suitable for use as positive electrode in PbO2/AC AEC. The fabricated AEC demonstrated good power performance with an energy density conservation of 30 Wh kg−1 at power density of 2078 W kg−1. The fabricated AEC also showed excellent cycling stability with capacitance retention of 99.2% after 1000 cycles.
Journal: International Journal of Hydrogen Energy - Volume 39, Issue 30, 13 October 2014, Pages 17153–17161