LiNi0.6Co0.1Mn0.3O2正极材料的合成与性能

采用共沉淀-高温固相法制备LiNi0.6Co0.1Mn0.3O2锂离子正极材料，并使用X 射线衍射仪（XRD）和扫描电镜（SEM）技术分别表征其结构和形貌.然后将所得LiNi0.6Co0.1Mn0.3O2正极材料组装成扣式电池，并表征其电化学性能，探讨烧结温度和锂配量对其电化学性能的影响.结果表明：所得LiNi0.6Co0.1Mn0.3O2正极材料的放电比容量随烧结温度的升高而增大，且在900℃时表现出最佳的电化学性能.室温下，1C倍率下，锂配量(n(Li)/n(Ni+ Co+ Mn)=1.09)时，正极材料的首次放电容量为143.7 mAh/g，50次循环后，正极材料的放电比容量仍有141.3 mAh/g，容量保持率为98.3%.

Synthesis and characterization of LiNi 0.6Co0.1Mn0.3O2 cathode materials

In this paper, LiNi0.6Co0.1Mn0.3O2 materials were synthesized via co-precipitation and high temperature solid state reaction. The obtained materials were investigated by powder X-ray diffraction (XRD) technique and scanning electron microscopy (SEM). Then LiNi0.6Co0.1Mn0.3O2 materials were fabricated into a button cell and the electrochemical properties were investigated. The results show that the discharge capacity of LiNi0.6Co0.1Mn0.3O2 material increases with the increase of sintering temperature and shows the optimal electrochemical properties at 900℃. The initial discharge capacity of the n(Li)/n(Ni+Co+Mn)=1.09 material reaches 143.7mAh/g at 1C rate with lithium dosing of 1.09 at the room temperature, and the specific discharge capacity of the cathode material retains at 141.3 mAh/g with capacity retention ratio of 98.3%after 50 cycles.