采用高温固相合成法制备了Li[Ni(1-x)/3Mn(1-x)/3Co(1-x)/3MOx]O2(x=0,0.005,0.01,0.02).对它们进行了XRD,SEM,循环伏安及充放电容量测试,结果发现,掺杂x=0.01Mo的样品具有较高的嵌锂容量和良好的循环稳定性,在20mA/g放电电流密度和2.3~4.6V的电压范围内具有211.6mAh/g的首次放电比容量,循环50周后放电比容量仍能达到185.9mAh/g,容量损失为12.1%.
Layered Li[Ni(1-x)/3Mn(1-x)/3Co(1-x)/3Mox]O2 materials (x=0, 0.005, 0.01, 0.02) were prepared by a solid-state pyrolysis method. Experiments of XRD, SEM, cyclic voltammetry and charge/discharge cycling were carried out. It indicated that when x=0.01, the sample showed the highest first discharge capacity of 211.6 mAh·g^-1 at a current density of 20 mA/g in the voltage range 2.3-4.6 V, and stable cycleability by possessing 185.9 mAh·g^-1 after 50 cycles, and the capacity fade was only 12.1%. The Mo-doped samples exhibited higher discharge capacity and better cycleability at room temperature.