Theoretical analysis for obtaining physical properties of composite electrodes

被引：24

作者：

Gomadam, PM

Weidner, JW ^{[1
]}

Zawodzinski, TA

Saab, AP

机构：

[1] Univ S Carolina, Dept Chem Engn, Ctr Electrochem Engn, Columbia, SC 29208 USA

[2] Los Alamos Natl Lab, Los Alamos, NM 87545 USA

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 2003年 / 150卷 / 08期

关键词：

D O I：

10.1149/1.1586301

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

A theoretical analysis is presented that allows in situ measurements of the physical properties of a composite electrode, namely, the electronic conductivity, the ionic conductivity, the exchange-current density, and the double-layer capacitance. Use is made of the current-voltage responses of the composite electrode to dc and ac polarizations under three different experimental configurations. This analysis allows the physical properties to be obtained even when the various resistances in the composite (e.g., ionic, electronic, and charge-transfer) are of comparable values. (C) 2003 The Electrochemical Society.

引用

收藏

页码：E371 / E376

页数：6

相关论文

共 15 条

[1] Computer simulations of the impedance response of lithium rechargeable batteries [J].

Doyle, M ;

Meyers, JP ;

Newman, J .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2000, 147 (01) :99-110

[2] Estimation of diffusion coefficient of lithium in carbon using AC impedance technique [J].

Guo, QZ ;

Subramanian, VR ;

Weidner, JW ;

White, RE .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2002, 149 (03) :A307-A318

[3] The impedance response of a porous electrode composed of intercalation particles [J].

Meyers, JP ;

Doyle, M ;

Darling, RM ;

Newman, J .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2000, 147 (08) :2930-2940

[4] PROTON DIFFUSION IN NICKEL-HYDROXIDE FILMS - MEASUREMENT OF THE DIFFUSION-COEFFICIENT AS A FUNCTION OF STATE OF CHARGE [J].

MOTUPALLY, S ;

STREINZ, CC ;

WEIDNER, JW .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1995, 142 (05) :1401-1408

[5]

Newman J., 1991, ELECTROCHEMICAL SYST

[6] Microelectrode techniques for in situ measurements on electrical conductance of a carbon particle and its composite film during electrochemical lithium insertion/extraction [J].

Nishizawa, M ;

Koshika, H ;

Uchida, I .

JOURNAL OF PHYSICAL CHEMISTRY B, 1999, 103 (01) :192-196

[7] Microelectrode-based characterization systems for advanced materials in battery and sensor applications [J].

Nishizawa, M ;

Uchida, I .

ELECTROCHIMICA ACTA, 1999, 44 (21-22) :3629-3637

[8] Double-layer capacitance in a dual lithium ion insertion cell [J].

Ong, IJ ;

Newman, J .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1999, 146 (12) :4360-4365

[9] Determination of ionic and electronic resistivities in carbon/polyelectrolyte fuel-cell composite electrodes [J].

Saab, AP ;

Garzon, FH ;

Zawodzinski, TA .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2002, 149 (12) :A1541-A1546

[10] IN-SITU CONDUCTIVITY MEASUREMENTS DURING LITHIUM INTERCALATION DEINTERCALATION ON V2O5 THIN-FILM BY USING INTERDIGITATED MICROARRAY ELECTRODES [J].

SHIBUYA, M ;

YAMAMURA, S ;

MATSUE, T ;

UCHIDA, I .

CHEMISTRY LETTERS, 1995, (08) :749-750