公开(公告)号：US20250023023A1

公开(公告)日：2025-01-16

申请号：US18894094

申请日：2024-09-24

Applicant: BYD COMPANY LIMITED

Inventor： Liping GE ,  Rong HAO ,  Minghao ZHUANG ,  Yecheng TIAN ,  Bizhe SU

IPC: H01M4/36 ,  H01M4/02 ,  H01M4/505 ,  H01M4/525 ,  H01M4/583 ,  H01M10/052

Abstract: An electrode, a lithium battery, and a motor vehicle are provided. The electrode includes a current collector and an electrode active material layer arranged on at least one side surface of the current collector. The electrode active material layer includes at least two electrode active material sub-layers. The electrode active material sub-layers meet: n×δi≤10000, n≥2, and δi≤5000; and Hi-1

公开(公告)号：US20230352671A1

公开(公告)日：2023-11-02

申请号：US18041663

申请日：2021-08-13

Applicant: BYD COMPANY LIMITED

Inventor： Na CHEN ,  Yecheng TIAN ,  Sanzhi CHEN ,  Rong HAO ,  Yi PAN

IPC: H01M4/505 ,  H01M4/04 ,  H01M4/58 ,  H01M4/525 ,  H01M4/131 ,  C01G53/00

CPC classification number: H01M4/505 ,  H01M4/0404 ,  H01M4/0471 ,  H01M4/5825 ,  H01M4/525 ,  H01M4/131 ,  C01G53/50 ,  H01M2004/021

Abstract: Disclosed are a mixed positive electrode material, a positive electrode plate and a manufacturing method therefor, and a battery. The mixed positive electrode material includes: a ternary material and a phase change material, where the phase change material undergoes a phase change in a charging/discharging voltage range of the ternary material, the ternary material has a single crystal structure, and the phase change material has a single crystal structure or an aggregate structure; a mass fraction ratio of the ternary material to the phase change material is 70:30 to 99.8:0.2; and the ternary material has a nanohardness of 0.001-5 Gpa, and the phase change material has a nanohardness of 0.01-10 GPa.

公开(公告)号：US20240429363A1

公开(公告)日：2024-12-26

申请号：US18830153

申请日：2024-09-10

Applicant: BYD COMPANY LIMITED

Inventor： Bizhe SU ,  Rong HAO ,  Minghao ZHUANG ,  Liping GE ,  Yecheng TIAN

IPC: H01M4/13 ,  H01M4/02 ,  H01M4/62 ,  H01M10/052 ,  H01M10/0567 ,  H01M10/0569

Abstract: A battery includes a positive electrode plate, a negative electrode plate, an electrolyte solution, and a separator between the positive electrode plate and the negative electrode plate. The positive electrode plate includes a positive current collector and a positive material layer disposed on the positive current collector. The negative electrode plate includes a negative current collector and a negative material layer disposed on the negative current collector. The positive electrode plate and the negative electrode plate are configured to have a strong liquid retention capability for the electrolyte solution that can reduce the occurrence of lithium plating during charging.

公开(公告)号：US20230163280A1

公开(公告)日：2023-05-25

申请号：US18154660

申请日：2023-01-13

Applicant: BYD COMPANY LIMITED

Inventor： Na CHEN ,  Zewen RUAN ,  Yecheng TIAN ,  Xuanwei DENG ,  Nan ZHANG

IPC: H01M4/36 ,  H01M4/525 ,  H01M4/505 ,  C01G53/00

CPC classification number: H01M4/366 ,  H01M4/525 ,  H01M4/505 ,  C01G53/50 ,  H01M2004/028

Abstract: The present disclosure provides a cathode material including multiple composite secondary particles, each of the composite secondary particles including multiple primary cathode material particles, where the composite secondary particles meet: 0.9≤0.1D/A+B*C≤20 (Relation 1). In which A represents a particle size D50 of the primary cathode material particles, unit: μm; B represents a particle size D50 of the composite secondary particles, unit: μm; C represents a specific surface area of the composite secondary particles, unit: m2/g; and D represents a number of the primary cathode material particles in each of composite secondary particles.