Solid-State Supercapacitor Based on Activated Carbon Cloths Exhibits Excellent Rate Capability

Activated carbon cloth is used as an electrode, achieving an excellent areal capacitance of 88 mF/cm2 (8.8 mF/g) without the use of any other capacitive materials. Significantly, when it is incorporated as part of a symmetric solid‐state supercapacitor device, a remarkable charge/discharge rate capa...

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Bibliographic Details
Published in:Advanced materials (Weinheim) 2014-05, Vol.26 (17), p.2676-2682
Main Authors: Wang, Gongming, Wang, Hanyu, Lu, Xihong, Ling, Yichuan, Yu, Minghao, Zhai, Teng, Tong, Yexiang, Li, Yat
Format: Article
Language:English
Subjects:
Activated carbon
activated-carbon cloth
Capacitance
Capacitors
Charging
Cloth
Discharge
Electrodes
energy storage
rate capability
solid-state supercapacitors
Supercapacitors
ultrafast charging
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Summary:Activated carbon cloth is used as an electrode, achieving an excellent areal capacitance of 88 mF/cm2 (8.8 mF/g) without the use of any other capacitive materials. Significantly, when it is incorporated as part of a symmetric solid‐state supercapacitor device, a remarkable charge/discharge rate capability is observed; 50% of the capacitance is retained when the charging rate increases from 10 to 10 000 mV/s.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201304756