Three-electrode button cell for EIS investigation of graphite electrode

被引：46

作者：

Martinent, A ^{[1
]}

Le Gorrec, B ^{[1
]}

Montella, C ^{[1
]}

Yazami, R ^{[1
]}

机构：

[1] Ecole Natl Super Electrochim & Electromet Grenobl, Lab Electrochim & Physicochim Mat & Interfaces, UMR 5631 CNRS INPG, UJF, St Martin Dheres, France

来源：

JOURNAL OF POWER SOURCES | 2001年 / 97-8卷

关键词：

electrochemical impedance spectroscopy (EIS); passivation film; graphite electrode; lithium;

D O I：

10.1016/S0378-7753(01)00592-4

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Electrochemical impedance spectroscopy (EIS) has been used to study the graphite composite electrode/electrolyte interface in a newly designed three-electrode button-type cell. In order to follow the formation of the passivation film on graphite, several spectra have been plotted during the first reduction of the electrochemical system. Typical impedance spectra exhibit a high-frequency (HF) impedance loop, which does not evolve much over the scanned potential range. A middle-frequency (MF) loop appears as the cathodic polarization of the carbon electrode increases, whose characteristics are potential dependent. In the lower frequency (LF) region, a near vertical straight line is observed. The attributions of each frequency region are discussed in the present paper. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：83 / 86

页数：4

共 11 条

[1] Failure and stabilization mechanisms of graphite electrodes [J].