不同温度烧结制备Li ［Li0.17 Ni0.17 Co0.10 Mn0.56］O2  

Preparing Li[Li_(0.17)Ni_(0.17)Co_(0.10)Mn_(0.56)]O_2 by sintered at different temperatures

作　　者：孟海星[1] 徐强[1] 金慧芬[2] 高俊奎[2] 

机构地区：[1]天津大学化工学院,天津300072 [2]天津力神电池股份有限公司,天津300384

出　　处：《电池》2014年第1期18-20,共3页Battery Bimonthly

摘　　要：将共沉淀反应与高温固相烧结相结合制备富锂层状正极材料Li[Li0.17 Ni0.17 Co0.10 Mn0.56]O2。用XRD、SEM、充放电和电化学阻抗谱（EIS）等方法研究烧结温度对产物电化学性能的影响。在850℃下烧结得到的材料，循环性能和倍率性能良好。以0.05 C（1.00 C＝250 mA/g）的电流在2.0～4.6 V放电，样品电池的首次放电比容量可达260.5 mAh/g。Li-rich layered oxide material Li[Li0.17 Ni0.17 Co0.10 Mn0.56 ]O2 was prepared by the combining of co-precipitation process and high temperature solid state sintering. Effects of sintering temperature on electrochemical performance of products were investi-gated by XRD,SEM,charge-discharge and electrochemical impedance spectroscopy（EIS）methods. The material sintered at 850 ℃had fine cycle performance and rate performance,when charged-discharged in 2.0~4.6 V with 0.05 C（1.00 C=250 mA/g）,the initial specific discharge capacity of sample cell was 260.5 mAh/g.

关 键 词：锂离子电池 烧结 富锂层状材料 放电比容量 

分 类 号：TM912.9[电气工程—电力电子与电力传动]