Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7730187 | Journal of Power Sources | 2016 | 7 Pages |
Abstract
A cylindrical hybrid supercapacitor is fabricated using activated carbon positive electrode and H2Ti12-xNbxO25 (0 â¤Â x â¤Â 0.6) negative electrode materials. The hybrid supercapacitor using H2Ti11.85Nb0.15O25 exhibits the best electrochemical performance. It has a capacitance of 78.4 F gâ1, charge transfer resistance (Rct) of 0.03 Ω, capacitance retention of 91.4% after 1000 cycles at 3.0 A gâ1 and energy density of 24.3 W h kgâ1 at a power density of 1794.6 W kgâ1. Therefore, the Nb doped HTO negative electrode material is a promising candidate as an energy storage system for electric vehicles (EVs).
Keywords
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Physical Sciences and Engineering
Chemistry
Electrochemistry
Authors
Jeong Hyun Lee, Hong-Ki Kim, Esther Baek, Michael Pecht, Seung-Hwan Lee, Young-Hie Lee,