Low temperature preparation of optimized phosphates for Li-battery applications

被引：58

作者：

Delacourt, C

Wurm, C

Reale, P

Morcrette, M

Masquelier, C

机构：

[1] Univ Picardie, CNRS, UMR 6007, Lab Reactiv & Chim Solides, F-80039 Amiens 9, France

[2] Univ Roma La Sapienza, Dipartimento Chim, I-00185 Rome, Italy

来源：

SOLID STATE IONICS | 2004年 / 173卷 / 1-4期

关键词：

lithium batteries; phosphates; LiMnPO4;

D O I：

10.1016/j.ssi.2004.07.061

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：

We describe the thermodynamics and kinetics that govern the precipitation of pure powders of phosphates phases of interest for Li-battery applications. We found precise procedures for the formation of three distinct crystalline forms of FePO4.2H(2)O and of pure LiMnPO4. Our attempts to precipitate either LiCoPO4 or LiFePO4, on the other hand, failed. In this latter case, optimized electrodes for battery applications were synthesized through a chemical conductive carbon coating at the surface of LiFePO4 prepared by evaporation of an Fe-III-containing aqueous solution. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：113 / 118

页数：6

共 27 条

[1] Fine-particle lithium iron phosphate LiFePO4 synthesized by a new low-cost aqueous precipitation technique [J].