Synthesis of LiFePO4 micro and nanoparticles in supercritical water

被引：85

作者：

Lee, Jaewon ^{[1
]}

Teja, Amyn S. ^{[1
]}

机构：

[1] Georgia Inst Technol, Sch Chem & Biomol Engn, Atlanta, GA 30332 USA

来源：

MATERIALS LETTERS | 2006年 / 60卷 / 17-18期

关键词：

lithium iron phosphate (LiFePO4); supercritical synthesis; nanomaterials; powder technology;

D O I：

10.1016/j.matlet.2005.12.083

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Two synthesis routes for the production of LiFePO4 particles were investigated in water at subcritical and supercritical conditions. Micron and nano-sized particles of LiFCPO4 were obtained via both routes, with nano-sized particles predominating when temperature was above the critical temperature of water. Our results suggest that synthesis in supercritical water is attractive for obtaining nanometer-sized crystalline particles of LiFePO4 with a low degree of agglomeration. Electrochemical tests showed that this material exhibited improved capacity compared with LiFePO4 prepared via other methods. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：2105 / 2109

页数：5

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