Lithium electrodes with and without CO2 treatment: Electrochemical behavior and effect on high rate lithium battery performance

被引：21

作者：

Gan, H

Takeuchi, ES

机构：

[1] Wilson Greatbatch Ltd., Clarence, NY 14031

来源：

JOURNAL OF POWER SOURCES | 1996年 / 62卷 / 01期

关键词：

lithium carbonate; voltage delay; solid-electrolyte interphase; lithium batteries;

D O I：

10.1016/S0378-7753(96)02405-6

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：

The ionic resistivity and integrity of a solid-electrolyte interphase (SEI) him on a lithium electrode surface was investigated. The preformed lithium carbonate film on the surface of the lithium electrode was found to improve the electrode behavior by maintaining a low ionic resistance. In lithium/silver vanadium oxide batteries, voltage delay can be eliminated with the use of a lithium anode pretreated with CO2. An SEI consisting of lithium carbonate appears to be responsible. Unlike the surface film formed from lithium-electrolyte reactions, the lithium carbonate film is relatively strong and can withstand high current density pulses (similar to 20 mA/cm(2)) without significant damage. An ion exchange mechanism involving the carbonate anion is proposed.

引用

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页码：45 / 50

页数：6

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