公开(公告)号：US12009513B2

公开(公告)日：2024-06-11

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 ,  H01M4/134 ,  H01M4/36 ,  H01M4/62 ,  H01M10/0525

CPC classification number: H01M4/386 ,  H01M4/134 ,  H01M4/366 ,  H01M4/382 ,  H01M4/625 ,  H01M10/0525

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

公开(公告)号：US10177382B2

公开(公告)日：2019-01-08

申请号：US15129987

申请日：2015-04-28

Applicant: BYD COMPANY LIMITED

Inventor： Xiaoyan Han ,  Shicai Li ,  Zhongchun Zhang

IPC: H01M4/62 ,  H01M10/0525 ,  C01B25/45 ,  C01G53/00 ,  C08K3/32 ,  C08K9/06 ,  H01M10/42 ,  H01M4/1391 ,  H01M4/1397 ,  H01M4/505 ,  H01M4/525 ,  H01M4/58 ,  H01M4/131 ,  H01M4/136 ,  H01M10/052 ,  H01M4/36 ,  H01M4/485 ,  H01M4/02

Abstract: An additive for a positive electrode material includes an internal component and an external component. The internal component contains a silane coupling agent modified inorganic lithium salt. The external component is formed on a surface of the internal component and contains a polymer with a low melting point. The internal component and the external component form a core-shell structure together, and the shell has a porosity of 0.01% to 20%. A positive electrode material and a lithium-ion battery including the additive, and method of preparing the lithium-ion battery are also provided.

公开(公告)号：US11996555B2

公开(公告)日：2024-05-28

申请号：US17272177

申请日：2019-08-28

Applicant: BYD COMPANY LIMITED

Inventor： Yongqing Gan ,  Shicai Li ,  Dongjie Hu ,  Xiao Shi ,  Wei Song

IPC: H01M4/505 ,  H01M4/02 ,  H01M4/36 ,  H01M4/525 ,  H01M4/62 ,  H01M10/0525

CPC classification number: H01M4/505 ,  H01M4/366 ,  H01M4/525 ,  H01M4/62 ,  H01M10/0525 ,  H01M2004/028

Abstract: A ternary cathode material, a preparation method thereof, and a lithium ion battery are provided. The ternary cathode material comprises a micron-sized single-crystalline particle structure of LiNi1-x-y-zCoxMnyMzO2, wherein 0.6 a2/(a2+x2+y2+z2); and M comprises at least one selected from Al, Mg, Ti, Ga, Nb, Zr, W, Mo and Ta.

公开(公告)号：US20170133684A1

公开(公告)日：2017-05-11

申请号：US15129987

申请日：2015-04-28

Applicant: BYD COMPANY LIMITED

Inventor： Xiaoyan Han ,  Shicai Li ,  Zhongchun Zhang

IPC: H01M4/62 ,  C08K3/32 ,  C01G53/00 ,  C08K9/06 ,  H01M10/0525 ,  C01B25/45

CPC classification number: H01M4/62 ,  C01B25/45 ,  C01G53/42 ,  C01G53/50 ,  C01P2004/03 ,  C01P2006/40 ,  C08K3/32 ,  C08K9/06 ,  C08K2003/328 ,  C08K2201/003 ,  H01M4/131 ,  H01M4/136 ,  H01M4/1391 ,  H01M4/1397 ,  H01M4/366 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M4/5825 ,  H01M4/622 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/4235 ,  H01M2004/028

Abstract: An additive for a positive electrode material includes an internal component and an external component. The internal component contains a silane coupling agent modified inorganic lithium salt. The external component is formed on a surface of the internal component and contains a polymer with a low melting point. The internal component and the external component form a core-shell structure together, and the shell has a porosity of 0.01% to 20%. A positive electrode material and a lithium-ion battery including the additive, and method of preparing the lithium-ion battery are also provided.