电源技术2013，Vol.37Issue(6)：944-946,3.
致密球形正极材料LiNi0.6Co0.2Mn0.2O2的制备及性能
Preparation and performance of LiNi0.6Co0.2Mn0.2O2 as high density and spherical cathode material
李平 1许国峰 1崔菲菲2
作者信息
- 1. 中国电子科技集团公司第十八研究所,天津300384
- 2. 海军装备部,北京100841
- 折叠
摘要
Abstract
High tap-density spherical precursor Ni0.6Co0.2Mn0.2(OH)2 was synthesized by chemistry co-precipitation method as raw material,which was then blended with Li2CO3 and incinerated,and gained the LiNi0.6Co0.2Mn0.2O2 with high tap-density.The influence of different synthesizing conditions on the materials characteristic was investigated.The product synthesized with best condition has tap-density of D≥2.5 g/cma,and middle particle of D50≈10 μm.The X-ray diffraction (XRD) indicates that the material can be indexed by a hexagonal α-NaFeO2 layer structure.The scanning electron microscope (SEM) indicates that the material has favorable spherical pattern.The initial discharge specific capacity is 172.1 mAh/g at 2.75-4.30 V,and the rate of the charge-discharge is 90.1％ for the first time.Up to 10 cycles,the discharge specific capacity is 171.3 mAh/g,and the rate of the charge-discharge is 99.7％.关键词
正极材料/LiNi0.6Co0.2Mn0.2O2/前驱体/高致密/共沉淀法Key words
cathode material/ LiNi0.6Co0.2Mn0.2O2/ precursor/ high density/ co-precipitation method分类
信息技术与安全科学引用本文复制引用
李平,许国峰,崔菲菲..致密球形正极材料LiNi0.6Co0.2Mn0.2O2的制备及性能[J].电源技术,2013,37(6):944-946,3.
