LiFePO4 cathode power with high energy density synthesized by water quenching treatment

被引：22

作者：

Gao, Xu-guang ^{[1
]}

Hu, Guo-rong ^{[1
]}

Peng, Zhong-dong ^{[1
]}

Du, Ke ^{[1
]}

机构：

[1] Cent S Univ, Sch Met Sci & Engn, Changsha 410083, Peoples R China

来源：

ELECTROCHIMICA ACTA | 2009年 / 54卷 / 21期

基金：

美国国家科学基金会;

关键词：

Lithium ion battery; Cathode material; LiFePO4; C-LiFePO4; Water quenching treatment; ELECTROCHEMICAL PROPERTIES; PHOSPHO-OLIVINES;

D O I：

10.1016/j.electacta.2008.12.024

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

A water quenching (WQ) method was developed to synthesize LiFePO4 and C-LiFePO4. Our results indicate that this synthesis method ensures improved electrochemical activity and small crystal grain size. The synthetic conditions were optimized using orthogonal experiments. The LiFePO4 sample prepared at the optimized condition showed a maximum discharge capacity of 149.8 mAh g(-1) at a C/10 rate. C-LiFePO4 with a low carbon content of 0.93% and a high discharge specific capacity of 163.8 mAh g(-1) has also been obtained using this method. Water quenching treatment shows outstanding improvement of the electrochemical performance of LiFePO4. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：4777 / 4782

页数：6

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