Abstract: The present disclosure relates to a ternary positive electrode material and a battery using the ternary positive electrode material. The ternary positive electrode material includes secondary particles composed of primary particles. The secondary particles have an average particle diameter D50 of 6 ?m-20 ?m, BET of 0.2 m2/g-1 m2/g, and the number ? of primary particles per unit area of the secondary particles is 5 particles/?m2-100 particles/?m2. The ternary positive electrode material has a formula of Li1+a[NixCoyMnzM1bM2c]O2?dNd, where element M1 and element M2 are each independently selected from at least one of Al, Zr, Ti, Mg, Zn, B, Ca, Ce, Te and Fe, element N is selected from at least one of F, Cl and S, and 0<x<1, 0<y?0.3, 0?z?0.3, ?0.1<a<0.2, 0?b<0.3, 0?c<0.3, 0?d<0.2, 0?b+c?0.3, x+y+z+b=1. The formed secondary particles have high compactness, thereby effectively improving the structural stability and the cycling performance at high or low temperature.

Abstract: The present disclosure relates to a ternary positive electrode material and a battery using the ternary positive electrode material. The ternary positive electrode material includes secondary particles composed of primary particles. The secondary particles have an average particle diameter D50 of 6 ?m-20 ?m, BET of 0.2 m2/g-1 m2/g, and the number ? of primary particles per unit area of the secondary particles is 5 particles/?m2-100 particles/?m2. The ternary positive electrode material has a formula of Li1+a[NixCoyMnzM1bM2c]O2-dNd, where element M1 and element M2 are each independently selected from at least one of Al, Zr, Ti, Mg, Zn, B, Ca, Ce, Te and Fe, element N is selected from at least one of F, Cl and S, and 0<x<1, 0<y?0.3, 0?z?0.3, ?0.1<a<0.2, 0?b<0.3, 0?c<0.3, 0?d<0.2, 0?b+c?0.3, x+y+z+b=1. The formed secondary particles have high compactness, thereby effectively improving the structural stability and the cycling performance at high or low temperature.