Enhanced electrochemical performance of mesoparticulate LiMnPO4 for lithium ion batteries

被引：156

作者：

Kwon, NH ^{[1
]}

Drezen, T

Exnar, I

Teerlinck, I

Isono, M

Graetzel, M

机构：

[1] Swiss Fed Inst Technol, Inst Chem Sci & Engn, Lab Photon & Interface, CH-1015 Lausanne, Switzerland

[2] Swiss Fed Inst Technol, Lab High Power Lithium, CH-1015 Lausanne, Switzerland

[3] Toyota Motor Europe NV SA, B-1930 Zaventem, Belgium

[4] Toyota Motor Co Ltd, Mat Engn Div, Toyota, Aichi 4718571, Japan

来源：

ELECTROCHEMICAL AND SOLID STATE LETTERS | 2006年 / 9卷 / 06期

关键词：

D O I：

10.1149/1.2191432

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

LiMnPO4 was synthesized using a sol-gel method and tested as a cathode material for lithium ion batteries. After calcination at temperatures between 520 and 570 degrees C particle sizes in the range of 140 to 160 nm were achieved. Subsequent dry ballmilling reduced the diameter to 130 +/- 10 nm. Reversible capacities of 156 mAh/g at C/100 and 134 mAh/g at C/10 were measured. At 92 and 79% of the theoretical values, respectively, these are the highest values reported to data for this material. At faster charging rates, the electrochemical performance was found to be improved when smaller particles were used.

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页码：A277 / A280

页数：4

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