公开(公告)号：US20230335743A1

公开(公告)日：2023-10-19

申请号：US18333255

申请日：2023-06-12

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Zhenhua LI ,  Xinzhan WU ,  Qiang GUO ,  Xiayi WU ,  Hanli FU ,  Ziyu YANG ,  Xing LI ,  Shaojun NIU ,  Haizu JIN

IPC: H01M4/62 ,  H01M10/0525 ,  H01M4/04

CPC classification number: H01M4/624 ,  H01M10/0525 ,  H01M4/0404 ,  H01M2004/028

Abstract: A positive electrode composite material for a lithium ion secondary battery includes a positive electrode active material and a positive electrode additive. The positive electrode additive includes at least one of oxides, sulphides, peroxides, azides, or oxycarbides of sodium or potassium.

公开(公告)号：US20230307624A1

公开(公告)日：2023-09-28

申请号：US18315805

申请日：2023-05-11

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Hanli FU ,  Zhenhua LI ,  Jiawei XU ,  Ziyu YANG ,  Shuoyan XU ,  Qiang GUO ,  Xing LI ,  Shaojun NIU ,  Haizu JIN

IPC: H01M4/505 ,  H01M4/58 ,  H01M10/0525 ,  H01M10/054 ,  H01M4/131

CPC classification number: H01M4/505 ,  H01M4/5825 ,  H01M10/0525 ,  H01M10/054 ,  H01M4/131

Abstract: A secondary battery includes a negative electrode plate and a positive electrode plate. The negative electrode plate includes a negative electrode active material. The positive electrode plate includes a positive electrode active material. The negative electrode active material is selected from one or more of a silicon-based material and a tin-based material. The positive electrode active material has a molecular formula of M1xMnyM2zOaAb. M1 represents one or two of Mg and Al. M2 represents one or two of Co and Ni. A represents one or more of N, P, and S. 0