A New Benchmark Capacitance for Supercapacitor Anodes by Mixed-Valence Sulfur-Doped V6O13−x

A New Benchmark Capacitance for Supercapacitor Anodes by Mixed-Valence Sulfur-Doped V6O13−x

A new pseudocapacitor anode, sulfur‐doped V6O13−x, is reported. It achieves a benchmark capacitance of 1353 F/g (0.72 F/cm2) at a current density of 1.9 A/g (1 mA/cm2) in 5 M LiCl solution. The charges are stored chemically in the electrode via reversible redox reactions that involve multiple oxidat...

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Veröffentlicht in:Advanced materials (Weinheim) 2014-09, Vol.26 (33), p.5869-5875
Hauptverfasser: Zhai, Teng, Lu, Xihong, Ling, Yichuan, Yu, Minghao, Wang, Gongming, Liu, Tianyu, Liang, Chaolun, Tong, Yexiang, Li, Yat
Format: Artikel
Sprache:eng
Schlagworte:
anode
mixed-valence
sulfur doping
supercapacitors
vanadium oxide
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Zusammenfassung:A new pseudocapacitor anode, sulfur‐doped V6O13−x, is reported. It achieves a benchmark capacitance of 1353 F/g (0.72 F/cm2) at a current density of 1.9 A/g (1 mA/cm2) in 5 M LiCl solution. The charges are stored chemically in the electrode via reversible redox reactions that involve multiple oxidation states of vanadium (V3+, V4+ and V5+).
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201402041