公开(公告)号：US20210367233A1

公开(公告)日：2021-11-25

申请号：US17272177

申请日：2019-08-28

Applicant: BYD COMPANY LIMITED

Inventor： Yongqing GAN ,  Shicai LI ,  Dongjie HU ,  Xiao SHI ,  Wei SONG

IPC: H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M4/36 ,  H01M4/62

Abstract: A ternary cathode material, a preparation method thereof, and a lithium ion battery are provided. The ternary cathode material comprises a micron-sized single-crystalline particle structure of LiNi1-x-y-zCoxMnyMzO2, wherein 0.6 a2/(a2+x2+y2+z2); and M comprises at least one selected from Al, Mg, Ti, Ga, Nb, Zr, W, Mo and Ta.

公开(公告)号：US20210296637A1

公开(公告)日：2021-09-23

申请号：US16321593

申请日：2017-07-25

Applicant: BYD COMPANY LIMITED

Inventor： Jing XIE ,  Zizhu GUO ,  Yongjun MA ,  Guangui YI ,  Wei SONG ,  Biao LI

IPC: H01M4/36 ,  H01M4/133 ,  H01M4/1393 ,  H01M4/1395 ,  H01M10/0525 ,  H01M4/134 ,  H01M4/02

Abstract: The present disclosure provides a negative electrode material and a preparation method thereof, a negative electrode and an all-solid-state lithium-ion battery. The negative electrode material includes a negative electrode active substance and a coating layer on the surface of the negative electrode active substance, the coating layer including a polymer electrolyte and a sulfide solid electrolyte.