公开(公告)号：US20240421296A1

公开(公告)日：2024-12-19

申请号：US18815853

申请日：2024-08-27

Applicant: BEIJING EASPRING MATERIAL TECHNOLOGY CO., LTD.

Inventor： Zongpu SHAO ,  Yafei LIU ,  Haoran YANG ,  Juntao HU ,  Yanbin CHEN

IPC: H01M4/525 ,  C01G53/00 ,  H01M4/02 ,  H01M4/04 ,  H01M4/36 ,  H01M4/505 ,  H01M10/054

Abstract: The present application relates to the technical field of sodium-ion batteries. Provided are a sodium-ion cathode material, a preparation method and use thereof, a sodium-ion battery, a sodium-ion battery pack, and a device. The sodium-ion cathode material includes a matrix and a coating layer coated on the matrix. The matrix has a composition represented by formula I: Na1−x[NiyMnzMu]TivO2 formula I. The coating layer has a composition represented by formula II: Na2−βTi6−αM′αO13 formula II. The sodium-ion cathode material has characteristics of high ionic and electronic conductivity, strong structural stability, and strong chemical stability. At the same time, applying the composite cathode material to the sodium-ion batteries can effectively improve electrochemical performance of the battery.

公开(公告)号：US20240421302A1

公开(公告)日：2024-12-19

申请号：US18815861

申请日：2024-08-27

Applicant: BEIJING EASPRING MATERIAL TECHNOLOGY CO., LTD.

Inventor： Zongpu SHAO ,  Yafei LIU ,  Yanbin CHEN

IPC: H01M4/58 ,  C01G49/00 ,  H01M4/02 ,  H01M4/04 ,  H01M4/36 ,  H01M4/583 ,  H01M10/0525

Abstract: Provided are an olivine composite cathode material, a preparation method, and a lithium-ion battery. The composite cathode material includes a matrix and a composite phase. The matrix has a composition represented by formula I: LixM1yMnzFe1-z-uM2u(PO4)w(ROa)bCv, where 0.5≤x