公开(公告)号：US20220037660A1

公开(公告)日：2022-02-03

申请号：US17400130

申请日：2021-08-12

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Jinyou Zhu ,  Yongsheng Guo ,  Chengdu Liang ,  Qian Liu ,  Wenguang Lin

IPC: H01M4/525 ,  H01M10/054 ,  C01G49/00 ,  C01G53/00

Abstract: The present application discloses a positive electrode active material satisfying the chemical formula LxNayMzCuαFeβMnγO2+δ−0.5ηXη and a preparation method therefor, a sodium ion battery and an apparatus including such battery, wherein L is a doping element at alkali metal site, M is a doping element at transition metal site, and X is a doping element at oxygen site, 0≤x