Nonaqueous sol-gel synthesis of high-performance LiFePO4

被引：120

作者：

Yang, JS ^{[1
]}

Xu, JJ ^{[1
]}

机构：

[1] Rutgers State Univ, Dept Ceram & Mat Engn, Piscataway, NJ 08854 USA

来源：

ELECTROCHEMICAL AND SOLID STATE LETTERS | 2004年 / 7卷 / 12期

关键词：

D O I：

10.1149/1.1819893

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

A simple, versatile nonaqueous sol-gel method for the synthesis of carbon-coated LiFePO4 as high-performance cathode is reported. The method consists of two simple steps: (i) dissolve lithium acetate, iron(II) acetate and phosphoric acid in ethylene glycol to form a molecularly homogeneous, monolithic organo-gel and (ii) directly heat the gel in nitrogen atmosphere to form carbon-coated, phase-pure LiFePO4. The LiFePO4 formed consists of 200-300 nm particles with rather uniform size distribution and with 1-4 wt % surface carbon coating formed in situ. The favorable physical characteristics of the synthesized LiFePO4 give rise to excellent rate performance. (C) 2004 The Electrochemical Society.

引用

页码：A515 / A518

页数：4

共 23 条

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