Nueangnoraj, Khanin, Ruiz-Rosas, Ramiro, Nishihara, Hirotomo, Shiraishi, Soshi, Morallon, Emilia, Cazorla-Amorós, Diego, Kyotani, Takashi
Carbon–carbon asymmetric aqueous capacitor by pseudocapacitive positive and stable negative electrodes
Carbon. 2014, 67: 792-794. doi:10.1016/j.carbon.2013.10.011
URI: http://hdl.handle.net/10045/37286
DOI: 10.1016/j.carbon.2013.10.011
ISSN: 0008-6223 (Print)
Abstract: 
An asymmetric aqueous capacitor was constructed by employing zeolite-templated carbon (ZTC) as a pseudocapacitive positive electrode and KOH-activated carbon as a stable negative electrode. The asymmetric capacitor can be operated with the working voltage of 1.4 V, and exhibits an energy density that is comparable to those of conventional capacitors utilizing organic electrolytes, thanks to the large pseudocapacitance of ZTC. Despite relatively thick electrode (0.2 mm) configuration, the asymmetric capacitor could be well operated under a current density of 500 mA g −1.
Keywords:Asymmetric aqueous capacitor, Zeolite-templated carbon, Pseudocapacitive positive electrode, KOH-activated carbon, Stable negative electrode
Elsevier
info:eu-repo/semantics/article