公开(公告)号：US20210280860A1

公开(公告)日：2021-09-09

申请号：US17255188

申请日：2019-06-19

Applicant: BYD COMPANY LIMITED

Inventor： Zhengfu JIANG ,  Shicai LI ,  Xiaopeng JIAO ,  Yongqing GAN ,  Xiao SHI

IPC: H01M4/38 ,  H01M10/0525 ,  H01M4/134 ,  H01M4/36 ,  H01M4/62

Abstract: An anode material includes a core-shell structured composite material. The core-shell structured composite material includes a core material, an inner shell material, and an outer shell material. The core material includes graphite particles. The inner shell material includes a continuous phase and a dispersing phase. The dispersing phase includes nano silicon particles, the continuous phase includes carbon, and the outer shell material includes lithium metal. A chemical formula of the nano silicon-based particles is SiOx, 0

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.