Modeling side reactions in composite LiyMn2O4 electrodes

被引：141

作者：

Darling, R ^{[1
]}

Newman, J

机构：

[1] Univ Calif Berkeley, Lawrence Berkeley Lab, Environm Energy Technol Div, Berkeley, CA 94720 USA

[2] Univ Calif Berkeley, Dept Chem Engn, Berkeley, CA 94720 USA

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 1998年 / 145卷 / 03期

关键词：

D O I：

10.1149/1.1838376

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

A Li/1 M LIClO4 in propylene carbonate (PC)/Li8Mn2O4 cell is used to investigate the influence of side reactions on the current-potential behavior of intercalation electrodes. Slow cyclic voltammograms and self-discharge data are combined to estimate, simultaneously, the reversible potential vs state-of-charge curve for the host material and the kinetic parameters for the side reaction. This information is then used, together with estimates of the solid-state diffusion coefficient and main reaction exchange current density, in a mathematical model of the system. Predictions from the model compare favorably with continuous cycling results and galvanostatic experiments with periodic current interruptions.

引用

页码：990 / 998

页数：9

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