公开(公告)号：US20240145715A1

公开(公告)日：2024-05-02

申请号：US18404671

申请日：2024-01-04

Applicant: BYD COMPANY LIMITED

Inventor： Bin CHENG ,  Yi PAN ,  Minghao ZHUANG ,  Ruoyi DENG ,  Pengyu WU

IPC: H01M4/62 ,  H01M4/131 ,  H01M4/36 ,  H01M4/505 ,  H01M4/525 ,  H01M10/42

CPC classification number: H01M4/62 ,  H01M4/131 ,  H01M4/364 ,  H01M4/505 ,  H01M4/525 ,  H01M10/4235 ,  H01M2004/028

Abstract: A battery positive electrode material including lithium ferromanganese phosphate particles and active particles dispersed in voids between the lithium ferromanganese phosphate particles. The active particles include one or more of lithium nickel cobalt manganate particles, lithium nickel cobalt aluminate particles, lithium-rich manganese-based material particles, lithium cobaltate particles, spinel lithium manganate LiMn2O4 particles and layered lithium manganate LiMnO2 particles. The ratio of the median particle diameter of lithium ferromanganese phosphate to that of the active particles is between 3 and 8. In the battery positive electrode material, the content of percentage by weight of the lithium ferromanganese phosphate is between 70% and 90%, and the content of percentage by weight of the active particles is between 10% and 30%.

公开(公告)号：US20240186490A1

公开(公告)日：2024-06-06

申请号：US18394462

申请日：2023-12-22

Applicant: BYD COMPANY LIMITED

Inventor： Bin CHENG ,  Yi PAN ,  Minghao ZHUANG ,  Yuzhen YE ,  Ruoyi DENG

IPC: H01M4/36 ,  C01B25/45 ,  H01M4/58 ,  H01M4/587

CPC classification number: H01M4/366 ,  C01B25/45 ,  H01M4/5825 ,  H01M4/587 ,  C01P2004/86 ,  C01P2006/40

Abstract: A battery positive electrode material includes a core and a first shell layer arranged on a surface of the core. The core includes LiMnxFe1-xPO4. The first shell layer includes LiMnyFe1-yPO4, where 0