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