公开(公告)号：US20200006766A1

公开(公告)日：2020-01-02

申请号：US16392113

申请日：2019-04-23

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Qi WU ,  Jinhua HE ,  Changyin JI ,  Tao QIAO ,  Kelun WANG

IPC: H01M4/525 ,  H01M4/505 ,  H01M10/0525 ,  C01G53/00

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 μm-20 μm, BET of 0.2 m2/g-1 m2/g, and the number σ of primary particles per unit area of the secondary particles is 5 particles/μm2-100 particles/μm2. 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