Electrochemical characteristic of LiMn1.925M0.075O4 (M = Cr, Co) cathode materials synthesized by the microwave-induced combustion method

被引：21

作者：

Fu, Yen-Pei ^{[1
]}

Lin, Cheng-Hsiung

Su, Yu-Hsiu

Wu, She-Huang

机构：

[1] Natl Dong Hwa Univ, Dept Mat Sci & Engn, Hualien 974, Taiwan

[2] Wu Feng Inst Technol, Dept Chem Engn, Chiayi 621, Taiwan

[3] Natl Tsing Hua Univ, Dept Mat Sci & Engn, Hsinchu 300, Taiwan

[4] Ta Tung Univ, Dept Mat Engn, Taipei 104, Taiwan

来源：

JOURNAL OF POWER SOURCES | 2006年 / 159卷 / 01期

关键词：

LiMn2O4; powder; microwave-induced combustion; lithium-ion battery;

D O I：

10.1016/j.jpowsour.2006.04.034

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：

Spinel LiMn1.925M0.075O4 (M=Cr, Co) powders with small and uniform particle size were successfully synthesized by microwave-induced combustion. The LiMn1.925M0.075O4 (M = Cr, Co) samples were used as cathode materials for lithium-ion battery, which their discharge capacity and electrochemical characteristic properties were investigated in this study. The results revealed that The Li/LiMn1.925M0.075O4 (M = Cr, Co) cells showed lower capacity loss than Li/LiMn2O4 cell after 30 cycles. Moreover, Cr-substituted spinel exhibited a lower capacity loss than Co-substituted spinel. The initial capacity of LiMn2O4 and LiMn1.925M0.075O4 cells can be ranked as follows: LiMn2O4 > LiMn1.925Cr0.075O4 > LiMn1.925Co0.075O4. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：215 / 218

页数：4

共 15 条

[1] Preparation and electrochemical investigation of LiMn2-xMexO4 (Me:Ni, Fe, and x=0.5, 1) cathode materials for secondary lithium batteries [J].