Characterization and electrochemical properties of LiMn2O4 thin films prepared by solution deposition

被引：0

作者：

Wu X. ^{[1
]}

He Z. ^{[1
]}

Xu M. ^{[2
]}

Li X. ^{[2
]}

Xiao Z. ^{[1
]}

机构：

[1] College of Chemistry and Chemical Engineering, Jishou University

[2] College of Metallurgical Science and Engineering, Central South University

来源：

Journal Wuhan University of Technology, Materials Science Edition | 2006年 / 21卷 / 03期

关键词：

Lithium manganese oxide; Lithium-ion battery; Solution deposition; Thin films;

D O I：

10.1007/BF02840879

中图分类号：

学科分类号：

摘要：

LiMn2O4 thin films were prepared by solution deposition using lithium acetate and manganese acetate as raw materials. The phase constitution and surface morphology were observed by X-ray diffraction and scanning electron microscopy. The electrochemical properties of the thin films were studied by cyclic voltammetry, charge-discharge experiments and impedance spectroscopy in 1 mol · L-1 LiPF6 / EC-DMC solution using lithium metal as both the counter and reference electrodes. The films prepared by this method are of spinel phase. The lattice parameter increases with the annealing temperature and annealing time. The film annealed at 750°C for 30 minutes has the highest capacity of 34.5 μAh · cm-2 · μm-1, and its capacity loss per cycle is 0.05% after being cycled 100 times.

引用

页码：54 / 56

页数：2

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