流变相法合成ZnO包覆的尖晶石LiNi_(0.5)Mn_(1.5)O_4  

ZnO-coated spinel LiNi_(0.5)Mn_(1.5)O_4 synthesized via rheological method

作　　者：张胜利[1] 李维[1] 宋延华[1] 杨胜杰[1] 

机构地区：[1]郑州轻工业学院材料与化学工程学院,河南郑州450002

出　　处：《电池》2010年第4期205-206,共2页Battery Bimonthly

摘　　要：以CH3COOLi、Ni(CH3COO)2和Mn(CH3COO)2为原料,用流变相法合成了正极材料ZnO包覆的Li Ni0.5Mn1.5O4。XRD测试表明:该材料为尖晶石结构。电化学性能测试表明:包覆ZnO后,Li Ni0.5Mn1.5O4在3.5～4.9 V以0.1C充放电的首次放电比容量为137.68 mAh/g,第30次循环的放电比容量为133.78 mAh/g,循环稳定性得到了改善。Cathode material ZnO-coated LiNi0.5 M n1. 5 O4 was synthesized via rheological method with CH3 COOLi, Ni（ CH3 COO） 2 and Mn（CH3COO）2 as raw materials. XRD test showed that the material was spinel structure. Electrochemical performance tests showed that after coating ZnO, the initial specific discharge capacity of LiNi0.5 Mn1.5 O4 was 137.68 mAh/g when 0.1 C chargedischarge at 3.5 -4.9 V, the specific discharge capacity at the 30th cycle was 133.78 mAh/g,its cycle stabihty was improved.

关 键 词：尖晶石LiNi0.5Mn1.5O4 流变相法 ZnO包覆 

分 类 号：TM912.9[电气工程—电力电子与电力传动]