| 摘要 |
The positive-electrode material of the lithium secondary battery according to the present invention includes a first positive-electrode active material, and a second positive-electrode active material, the first positive-electrode active material denoted by a composition formula Li1.1+xNiaM1bM2cO2 (M1 denoting Mo or W, M2 denoting Co, or Co and Mn, −0.07≦̸x≦̸0.1, 0.7≦̸a<0.98, 0.02≦̸b≦̸0.06, 0<c≦̸0.28), the second positive-electrode active material denoted by a composition formula Li1.03+xNiaTibM3c02 (M3 denoting Co, or Co and Mn, −0.03≦̸x≦̸0.07, 0.7≦̸a≦̸0.8, 0.05≦̸b≦̸0.1, 0.1≦̸c≦̸0.25), wherein the percentage of the first positive-electrode active material relative to the sum of the first positive-electrode active material and the second positive-electrode active material is greater than or equal to 30% in mass ratio.
|
