Eco-Efficient Synthesis of LiFePO4 with Different Morphologies for Li-Ion Batteries

被引：47

作者：

Recham, N. ^{[1
]}

Armand, M. ^{[1
]}

Laffont, L. ^{[1
]}

Tarascon, J-M. ^{[1
]}

机构：

[1] Univ Picardie Jules Verne, Lab Reactiv & Chim Solides, CNRS, UMR6007, F-80039 Amiens, France

来源：

ELECTROCHEMICAL AND SOLID STATE LETTERS | 2009年 / 12卷 / 02期

关键词：

electrochemical electrodes; iron compounds; lithium compounds; secondary cells; RECHARGEABLE LITHIUM BATTERIES; HYDROTHERMAL SYNTHESIS; HOMOGENEOUS PRECIPITATION; ELECTRODE MATERIALS; CATHODE MATERIALS; UREA; PHOSPHATES; PARTICLES; OLIVINES;

D O I：

10.1149/1.3039090

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

LiFePO4 is presently the most studied electrode material for battery applications. It can be prepared via solution, although it requires well-controlled pH conditions to master the iron valence state in the newly created material. Here we report its synthesis via the use of "latent bases" capable of releasing a nitrogen base upon heating. This way of controlling the reaction pH enables, in the absence of excess Li, the preparation of Fe+3-free LiFePO4 powders having various morphologies and showing good electrochemical performance. This approach is shown to offer great opportunities for the low-temperature synthesis of various electrode materials.

引用

页码：A39 / A44

页数：6

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