Analysis of surface films on lithium in various organic electrolytes

被引：69

作者：

Kominato, A ^{[1
]}

Yasukawa, E ^{[1
]}

Sato, N ^{[1
]}

Ijuuin, T ^{[1
]}

Asahina, H ^{[1
]}

Mori, S ^{[1
]}

机构：

[1] Mitsubishi Chem Corp, Tsukuba Res Ctr, Ibaraki, Osaka 30003, Japan

来源：

JOURNAL OF POWER SOURCES | 1997年 / 68卷 / 02期

关键词：

rechargeable lithium batteries; lithium electrodes; ethylene carbonate; dimethyl carbonate;

D O I：

10.1016/S0378-7753(97)02592-5

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 surface films formed on lithium metal in ethylene carbonase (EC)+dimethyl carbonate (DMC) containing LiPF6,, LiClO4, and LiN(SO2CF3,)(2), electrolytes were analysed by using Auger electron spectroscopy (AES), temperature-programmed decomposition mass spectrography (TPD-MS), FT-IR, ion chromatography (IC) and atomic adsorption spectroscopy (AAS). The morphology of the film was observed by using scanning electron microscopy (SEM). :The film formed in the LiPF6 solution exhibited spherical morphology and was found to contain LiF, lithium oxide compounds (most of which seems to be inorganic), (CH2OCO2Li)(2) and CH3OCO2Li. The films in LiClO4 and LIN(SO2CF3,)(2) were dendritic and contained the lithium oxide compounds, (CH2OCO2Li)(2) and Ch(3)OCO(2)Li. (C) 1997 Elsevier Science S.A.

引用

页码：471 / 475

页数：5

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