公开(公告)号：US20240363838A1

公开(公告)日：2024-10-31

申请号：US18636663

申请日：2024-04-16

申请人： Guizhou Zhenhua E-CHEM Inc.

发明人： Jin HUANG ,  Ye YU ,  Lijuan WANG ,  Chaoyi ZHOU ,  Qianxin XIANG ,  Shiyun DENG ,  Jing WEI ,  Xianjin WANG

IPC分类号： H01M4/36 ,  C01G53/00 ,  H01M4/02 ,  H01M4/48 ,  H01M4/525 ,  H01M4/58 ,  H01M10/0525

CPC分类号： H01M4/366 ,  C01G53/50 ,  H01M4/483 ,  H01M4/525 ,  H01M4/5825 ,  H01M10/0525 ,  C01P2004/03 ,  C01P2004/84 ,  C01P2006/40 ,  H01M2004/028

摘要： Double-coated high-nickel lithium-ion cathode material, including a cathode material substrate, a first coating layer coated on a surface of the cathode material substrate, and a second coating layer coated on a surface of the first coating layer; wherein the first coating layer and the second coating layer are prepared by successively coating the cathode material substrate with a metal oxide and a boron-containing compound. The high-nickel cathode material for lithium-ion batteries of the present invention has a stable structure and interface, is relatively stable in the air, and is convenient for large-scale production. The prepared battery has low gas production and high safety.