Characteristics of LiFePO4 obtained through a one step continuous hydrothermal synthesis process working in supercritical water

被引：43

作者：

Aimable, A. ^{[1
,2
]}

Aymes, D. ^{[1
]}

Bernard, F. ^{[1
]}

Le Cras, F. ^{[2
]}

机构：

[1] Univ Bourgogne, UMR 5209, CNRS, Inst Carnot Bourgogne, F-21078 Dijon, France

[2] DRT DTEN LCE, Commissariat Energie Atom, F-38000 Grenoble, France

来源：

SOLID STATE IONICS | 2009年 / 180卷 / 11-13期

关键词：

LiFePO4; Continuous hydrothermal synthesis; Supercritical water; Particle size; OLIVINE LIFEPO4; FINE-PARTICLE; OPTIMIZATION; PERFORMANCE; NANOPOWDERS; IMPURITIES; ELECTRODE; POWDERS; ENERGY; CARBON;

D O I：

10.1016/j.ssi.2009.02.019

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 olivine-like material LiFePO4 was prepared via a continuous hydrothermal synthesis process working from subcritical to supercritical water conditions. The influence of some processing parameters-temperature and reaction time-was investigated in terms of material purity, grain size and morphology. Supercritical conditions were found to be attractive to synthesize in one step a well-crystallized material without impurities. The primary particles size was in the nanometric range. They showed a natural tendency to form micron size agglomerates, which were supposed to be the cause of the limited capacity, as demonstrated through a cross study using laser particle size distribution analysis, electrochemical measurements and XRD at different Li contents. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：861 / 866

页数：6

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