Accelerating rate calorimetry study on the thermal stability of lithium intercalated graphite in electrolyte II. Modeling the results and predicting differential scanning calorimeter curves

被引：199

作者：

Richard, MN ^{[1
]}

Dahn, JR ^{[1
]}

机构：

[1] Dalhousie Univ, Dept Phys, Halifax, NS B3J 3H5, Canada

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 1999年 / 146卷 / 06期

关键词：

D O I：

10.1149/1.1391894

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Accelerating rate calorimeter (ARC) results for mesocarbon microbead electrodes in electrolyte and a reaction mechanism to qualitatively understand the results have been previously reported in the preceding companion paper. Here, a mathematical model, based on the previously proposed mechanism, is developed in order to calculate self-heating rate profiles. The calculated self-hearing rate profiles reproduce qualitatively the experimentally measured trends. The mathematical model for the self-heating of this anode material in electrolyte can be used to calculate differential scanning calorimeter (DSC) profiles. Using adjustable parameters, determined and fixed by comparisons to ARC experiments, the calculated DSC profiles approximate the measured DSC profiles, suggesting the reaction kinetics are correctly represented by the model. (C) 1999 The Electrochemical Society. S0013-4651(98)10-029-0. All rights reserved.

引用

页码：2078 / 2084

页数：7

共 11 条

[1]

[Anonymous], 1992, QUANTUM MECH

[2] THE STUDY OF ELECTROLYTE-SOLUTIONS BASED ON ETHYLENE AND DIETHYL CARBONATES FOR RECHARGEABLE LI BATTERIES .2. GRAPHITE-ELECTRODES [J].

AURBACH, D ;

EINELI, Y ;

MARKOVSKY, B ;

ZABAN, A ;

LUSKI, S ;

CARMELI, Y ;

YAMIN, H .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1995, 142 (09) :2882-2890

[3] THERMAL-STABILITY OF LIXCOO2, LIXNIO2 AND LAMBDA-MNO2 AND CONSEQUENCES FOR THE SAFETY OF LI-ION CELLS [J].

DAHN, JR ;

FULLER, EW ;

OBROVAC, M ;

VONSACKEN, U .

SOLID STATE IONICS, 1994, 69 (3-4) :265-270

[4]

Du Pasquier A, 1998, J ELECTROCHEM SOC, V145, P472

[5]

Laidler K. J., 1987, CHEM KINETICS

[6] Accelerating rate calorimetry study on the thermal stability of lithium intercalated graphite in electrolyte I. Experimental [J].

Richard, MN ;

Dahn, JR .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1999, 146 (06) :2068-2077

[7]

RICHARD MN, 1998, THESIS DALHOUSIE U H

[8]

TURNER B, 1997, CALORIMETRIC EVALUAT

[9] COMPARATIVE THERMAL-STABILITY OF CARBON INTERCALATION ANODES AND LITHIUM METAL ANODES FOR RECHARGEABLE LITHIUM BATTERIES [J].

VONSACKEN, U ;

NODWELL, E ;

SUNDHER, A ;

DAHN, JR .

JOURNAL OF POWER SOURCES, 1995, 54 (02) :240-245

[10] COMPARATIVE THERMAL-STABILITY OF CARBON INTERCALATION ANODES AND LITHIUM METAL ANODES FOR RECHARGEABLE LITHIUM BATTERIES [J].

VONSACKEN, U ;

NODWELL, E ;

SUNDHER, A ;

DAHN, JR .

SOLID STATE IONICS, 1994, 69 (3-4) :284-290

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