公开(公告)号：US20250023043A1

公开(公告)日：2025-01-16

申请号：US18902094

申请日：2024-09-30

Applicant: BYD Company Ltd.

Inventor： Yecheng Tian ,  Rong Hao ,  Minghao Zhuang ,  Liping Ge ,  Bizhe Su

IPC: H01M4/525 ,  H01M4/02 ,  H01M4/04 ,  H01M4/505 ,  H01M10/052 ,  H01M50/474

Abstract: A positive electrode material and an application thereof are provided. The positive electrode material comprises a secondary particle formed by stacking a plurality of primary particles. The positive electrode material further comprises a rock-salt phase cladding layer disposed on a surface of the secondary particle. A ratio of a particle size of the secondary particle to an average particle size of the primary particles is greater than or equal to 1.5; and the primary particles and the rock-salt phase cladding layer respectively comprise a nickel-based active material.