尖晶石型LiMn_2O_4电极材料的制备及性能研究  

Synthesis and electrochemical studies of spinel phase LiMn_2O_4

作　　者：杨文胜[1] 刘庆国[2] 

机构地区：[1]北京化工大学应用化学系,北京100029 [2]北京科技大学固体电解质实验室,北京100083

出　　处：《北京化工大学学报（自然科学版）》2000年第1期66-69,共4页Journal of Beijing University of Chemical Technology(Natural Science Edition)

摘　　要：以硝酸锰、硝酸锂和尿素为原料制备尖晶石型LiMn2O4锂离子电池电极材料,考察了Li和Mn的比例、尿素用量、预置炉温、焙烧温度及时间等工艺条件对合成产物的组成结构及电化学性能的影响。最佳工艺条件下制备的产物具有纯净的尖晶石结构,均一的颗粒度及优良的电化学性能。A new simplified technique has been described to synthesize LiMn 2O 4 directly from lithium nitrate, manganese nitrate and urea. The influence of the Li/Mn ratio, the amount of urea, the preset temperature of the furnace,the calcine temperature and time has been explored. The resultant LiMn 2O 4 synthesized under the optimum synthesis conditions shows perfect spinel structure, uniform particle size and excellent electrochemical performances.

关 键 词：锂离子电池 正极材料 尖晶石型 LIMN2O4 

分 类 号：TM912.203[电气工程—电力电子与电力传动] TM241.051[一般工业技术—材料科学与工程]