蔗糖辅助燃烧法制备纳米锂离子电池正极材料Li_(1.1)Mn_2O_4  

PREPARATION OF NANOSIZED Li_(1.1)Mn_2O_4 CATHODE MATERIAL FOR LITHIUM-ION BATTERY VIA SUCROSE-AIDED COMBUSTION METHOD

作　　者：毛景[1] 代克化[1] 骆文彬[1] 翟玉春[1] 

机构地区：[1]东北大学材料与冶金学院,辽宁沈阳110004

出　　处：《华南师范大学学报（自然科学版）》2009年第A02期28-30,共3页Journal of South China Normal University(Natural Science Edition)

摘　　要：采用蔗糖辅助燃烧法制备了富锂型锂离子电池正极材料Li1.1Mn2O4,XRD表明合成的Li1.1Mn2O4样品具有完整的尖晶石结构.SEM显示样品是由纳米粒子组成.0.5 C初始放电比容量为115 mAh/g,10 C放电比容量可达109 mAh/g.10 C倍率下循环200次容量保持率为90%.实验结果表明该材料倍率和循环性能均优良.Li-rich Li1.1Mn2O4 was synthesized via sucrose- aided combustion method. XRD pattern shows that the material has pure spinel structure. SEM image indicates that the material is composed of nanoparticies. The discharge eapacity of this material is 115 mAh/g at 0. 5 C rate and 109 mAh/g at 10 C rate, respectively. Cycling at 10 C rate is associated with nearly 90% power retention after 200 cycles. The results suggest that the material exhibits high rate capability and good cyclic performanee at room temperature. words：

关 键 词：锂离子电池 LIMN2O4 燃烧合成 正极材料 

分 类 号：TM912.9[电气工程—电力电子与电力传动]