Electrochemical impedance and complex capacitance to interpret electrochemical capacitor

被引：84
作者：
Itagaki, Masayuki [1 ]
Suzuki, Satoshi [1 ]
Shitanda, Isao [1 ]
Watanabe, Kunihiro [1 ]
机构：
[1] Tokyo Univ Sci, Fac Sci & Technol, Dept Pure & Appl Chem, Noda, Chiba 2788510, Japan
来源：
ELECTROCHEMISTRY | 2007年 / 75卷 / 08期
关键词：
electrochemical impedance spectroscopy; complex capacitance; transmission line model; electrochemical capacitor;
D O I：
10.5796/electrochemistry.75.649
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
The electrochemical impedance Z and complex capacitance C for typical equivalent circuits were summarized systematically in order to support the frequency domain analysis of electric double layer capacitance (EDLC). In the present paper, the impedance and the complex capacitance were calculated in the case that the electrochemical response of porous electrode was presented by a transmission line model (TLM). The loci of Z and C on the complex were divided into the lumped constant and distributed constant ranges in low and high frequency ranges, respectively. The complex capacitance plot was superior to obtain the capacitance of porous electrode than the impedance plot.
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页码：649 / 655
页数：7
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