One-step synthesis LiMn2O4 cathode by a hydrothermal method

被引：68

作者：

Wu, H. M. ^{[1
]}

Tu, J. P. ^{[1
]}

Yuan, Y. F. ^{[1
]}

Chen, X. T. ^{[1
]}

Xiang, J. Y. ^{[1
]}

Zhao, X. B. ^{[1
]}

Cao, G. S. ^{[1
]}

机构：

[1] Zhejiang Univ, Dept Mat Sci & Engn, Hangzhou 310027, Peoples R China

来源：

JOURNAL OF POWER SOURCES | 2006年 / 161卷 / 02期

关键词：

spinel LiMn2O4; hydrothermal method; lithium ion batteries; cathode;

D O I：

10.1016/j.jpowsour.2006.05.011

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 powders have been successfully synthesized by a hydrothermal method directly, which is no any pretreatment and following treatment in the process. The structure and morphology of the powders were studied in detail by means of X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM) and thermogravimetric analysis (TGA). The data reveal that the products have well-defined stable spinel structure, and the particles show distinctive crystal faces with 50-300 mn in particle sizes. The electrochemical characteristics of the spinel materials are measured in the coin-type cells in a potential range of 3.2-4.35 V versus Li/Li+. The as-synthesized LiMn2O4 delivers reversible capacity of about 121 mAh g(-1) at a current density of 1/10 C. Cycled the cell to 40 cycles, the capacity remains at about I I I mAh g-1 at 1/2 C. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：1260 / 1263

页数：4

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