Pyrolysis/gas chromatography/mass spectroscopy analysis of the surface film formed on graphite negative electrode

被引：47

作者：

Ogumi, Z ^{[1
]}

Sano, A ^{[1
]}

Inaba, M ^{[1
]}

Abe, T ^{[1
]}

机构：

[1] Kyushu Univ, Grad Sch Engn, Dept Energy & Hydrocarbon, Sakyo Ku, Kyoto 6068501, Japan

来源：

JOURNAL OF POWER SOURCES | 2001年 / 97-8卷

关键词：

graphite; surface film; pyrolysis/gas chromatography/mass spectroscopy; polymer;

D O I：

10.1016/S0378-7753(01)00529-8

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 chemical constituents of the protective surface film formed on graphite negative electrode in ethylene carbonate (EC)-based electrolyte solutions were analyzed by pyrolysis/gas chromatography/mass spectroscopy (Pyro/GC/MS). Oligomers that consist of oxyethylene units, such as ethylene glycol, di(ethylene glycol), and tri(ethylene glycol) methyl ester, were detected. These oligomers were formed by reductive decomposition of EC, and their presence suggested that the surface film contained polymer-like substances that have repeated oxyethylene units. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：156 / 158

页数：3

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