公开(公告)号：US12145860B2

公开(公告)日：2024-11-19

申请号：US17259106

申请日：2019-07-10

Applicant: BYD COMPANY LIMITED

Inventor： Dongjie Hu ,  Hao Wei

IPC: H01M10/0525 ,  C01G53/00 ,  H01M4/36 ,  H01M4/38 ,  H01M4/505 ,  H01M4/02 ,  H01M4/525

Abstract: A cathode material, a preparation method thereof, a lithium ion battery and a vehicle are provided. The cathode material comprises elemental sulfur and secondary particles formed by packing primary particles, wherein the secondary particles have a hollow structure, and the elemental sulfur fills in gaps among the primary particles and in the hollow structure. The primary particles comprise a lithium oxide, wherein the lithium oxide comprises δLiNimConX(1-m-n)O2:(1−δ)Li2MO3, 0≤δ≤1, X comprises at least one selected from Mn, Al, Nb, and Fe, M comprises at least one of Mn, Al, Nb, Fe, Co, and Ni, 0≤m

公开(公告)号：US12148920B2

公开(公告)日：2024-11-19

申请号：US17259098

申请日：2019-07-10

Applicant: BYD COMPANY LIMITED

Inventor： Dongjie Hu ,  Hao Wei

IPC: H01M4/131 ,  H01M4/136 ,  H01M4/36 ,  H01M4/38 ,  H01M4/52 ,  H01M4/525 ,  H01M4/62 ,  H01M10/0525

Abstract: A cathode material, a preparation method thereof, and a lithium ion battery are provided. The cathode material comprises cathode material particles comprising a central area, an intermediate layer, and a surface layer, wherein the intermediate layer is located between the central area and the surface layer; and the central area comprises a lithium oxide, the intermediate layer comprises elemental sulfur, and the surface layer comprises elemental sulfur and elemental carbon, in which the lithium oxide comprises δLiNimConX(1-m-n)O2·(1−δ)Li2MO3, where 0≤δ≤1, X includes at least one selected from Mn, Al, Nb, and Fe, M includes at least one selected from Mn, Al, Nb, Fe, Co, and Ni, 0≤m

公开(公告)号：US12145859B2

公开(公告)日：2024-11-19

申请号：US17259100

申请日：2019-07-10

Applicant: BYD COMPANY LIMITED

Inventor： Dongjie Hu ,  Hao Wei

IPC: H01M4/131 ,  C01G53/00 ,  H01M4/136 ,  H01M4/36 ,  H01M4/38 ,  H01M4/505 ,  H01M4/52 ,  H01M4/525 ,  H01M10/0525 ,  H01M4/02

Abstract: A cathode material, a preparation method thereof, a lithium ion battery and a vehicle are provided. The cathode material comprises cathode material particles comprising a central area, and a surface layer area, wherein the central area comprises lithium oxide, and the surface layer area comprises lithium oxide and elemental sulfur, in which the lithium oxide comprises δLiNimConX(1-m-n)O2·(1−δ)Li2MO3, where 0≤δ≤1, X comprises at least one selected from Mn, Al, Nb, and Fe, M comprises at least one selected from Mn, Al, Nb, Fe, Co, and Ni, 0≤m