Electrochemical STM observation of LiMn2O4 thin films prepared by pulsed laser deposition

被引：53

作者：

Inaba, M ^{[1
]}

Doi, T ^{[1
]}

Iriyama, Y ^{[1
]}

Abe, T ^{[1
]}

Ogumi, Z ^{[1
]}

机构：

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

来源：

JOURNAL OF POWER SOURCES | 1999年 / 81卷

关键词：

lithium-ion battery; lithium manganese oxide; STM; capacity fading;

D O I：

10.1016/S0378-7753(99)00215-3

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：

Spinel LiMn2O4 thin films were prepared by pulsed laser deposition. The surface morphology change of the Blm with potential cycling between 3.5 and 4.25 V was observed in 1 M LiClO4/PC by electrochemical scanning tunneling microscopy. After cycling, small round-shaped particles of 120-250 nm in diameter appeared on the surface. The number of the newly formed particles increased with repeated cycling while the size decreased,The observed morphology change suggested that the small particle were formed from the solution through a kind of dissolution/precipitation reactions. (C) 1999 Elsevier Science S.A. All rights reserved.

引用

页码：554 / 557

页数：4

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