Characterization of a commercial size cylindrical Li-ion cell with a reference electrode

被引：76

作者：

Wu, QW ^{[1
]}

Lu, WQ ^{[1
]}

Prakash, J ^{[1
]}

机构：

[1] IIT, Dept Chem & Environm Engn, Ctr Electrochem Sci & Engn, Chicago, IL 60616 USA

来源：

JOURNAL OF POWER SOURCES | 2000年 / 88卷 / 02期

关键词：

lithium-ion batteries; reference electrode; lithium cobalt oxide; area specific impedance;

D O I：

10.1016/S0378-7753(00)00372-4

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：

A method of monitoring the performance of the cell components was developed to study the cycling behavior of the commercial size rechargeable lithium-ion cells. A lithium reference electrode was placed into the center of a full commercial cylindrical cell in an effort to monitor the electrochemical behavior of the cell and its component electrodes during cycling. This technique allowed the resolution of measured voltage into component cathode and anode voltages and hence the resolution of the total area-specific impedance (ASI) into cathode and anode ASI. The cathode was found to be the electrode limiting the power and capacity of the Li-ion cell. Further investigations also revealed that the increase in the cathode ASI is a main cause of power and energy degradation of the cell during cycling. (C) 2000 Elsevier Science S.A. All rights reserved.

引用

页码：237 / 242

页数：6

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