公开(公告)号：US11569496B2

公开(公告)日：2023-01-31

申请号：US16010947

申请日：2018-06-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jiahua Liang ,  Shengan Xia ,  Fengchao Xie

IPC: H01M4/36 ,  H01M4/133 ,  H01M4/587 ,  H01M10/0525 ,  H01M4/1393 ,  C01B32/05 ,  C01B32/21 ,  H01M4/02

Abstract: A lithium-ion rechargeable battery negative electrode active material and a preparation method thereof, a lithium-ion rechargeable battery negative electrode plate, and a lithium-ion rechargeable battery are provided. The negative electrode active material includes a carbon core and a coating layer formed on a surface of the carbon core, a material of the coating layer includes amorphous carbon and a doping element, and the doping element includes element nitrogen. The lithium-ion rechargeable battery negative electrode active material has the carbon core, and the coating layer that includes the doping element and the amorphous carbon is provided on the surface of the carbon core.

公开(公告)号：US20250070140A1

公开(公告)日：2025-02-27

申请号：US18945280

申请日：2024-11-12

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jiahua Liang ,  Shengan Xia ,  Fengchao Xie

IPC: H01M4/36 ,  C01B32/05 ,  C01B32/21 ,  H01M4/02 ,  H01M4/133 ,  H01M4/1393 ,  H01M4/587 ,  H01M10/0525

Abstract: A lithium-ion rechargeable battery negative electrode active material and a preparation method thereof, a lithium-ion rechargeable battery negative electrode plate, and a lithium-ion rechargeable battery are disclosed. The negative electrode active material includes a carbon core and a coating layer formed on a surface of the carbon core, a material of the coating layer includes amorphous carbon and a doping element, and the doping element includes element nitrogen. The lithium-ion rechargeable battery negative electrode active material has the carbon core, and the coating layer that includes the doping element and the amorphous carbon is provided on the surface of the carbon core.

公开(公告)号：US12170365B2

公开(公告)日：2024-12-17

申请号：US18147618

申请日：2022-12-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jiahua Liang ,  Shengan Xia ,  Fengchao Xie

IPC: H01M4/36 ,  C01B32/05 ,  C01B32/21 ,  H01M4/02 ,  H01M4/133 ,  H01M4/1393 ,  H01M4/587 ,  H01M10/0525

Abstract: A lithium-ion rechargeable battery negative electrode active material and a preparation method thereof, a lithium-ion rechargeable battery negative electrode plate, and a lithium-ion rechargeable battery are disclosed. The negative electrode active material includes a carbon core and a coating layer formed on a surface of the carbon core, a material of the coating layer includes amorphous carbon and a doping element, and the doping element includes element nitrogen. The lithium-ion rechargeable battery negative electrode active material has the carbon core, and the coating layer that includes the doping element and the amorphous carbon is provided on the surface of the carbon core.

公开(公告)号：US20230197939A1

公开(公告)日：2023-06-22

申请号：US18147618

申请日：2022-12-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jiahua Liang ,  Shengan Xia ,  Fengchao Xie

IPC: H01M4/36 ,  H01M4/133 ,  H01M4/587 ,  H01M10/0525 ,  H01M4/1393 ,  C01B32/05 ,  C01B32/21

CPC classification number: H01M4/366 ,  H01M4/133 ,  H01M4/587 ,  H01M10/0525 ,  H01M4/1393 ,  C01B32/05 ,  C01B32/21 ,  C01P2002/02 ,  C01P2002/54 ,  C01P2004/84 ,  C01P2006/40 ,  H01M2004/027

Abstract: A lithium-ion rechargeable battery negative electrode active material and a preparation method thereof, a lithium-ion rechargeable battery negative electrode plate, and a lithium-ion rechargeable battery are disclosed. The negative electrode active material includes a carbon core and a coating layer formed on a surface of the carbon core, a material of the coating layer includes amorphous carbon and a doping element, and the doping element includes element nitrogen. The lithium-ion rechargeable battery negative electrode active material has the carbon core, and the coating layer that includes the doping element and the amorphous carbon is provided on the surface of the carbon core.

公开(公告)号：US20230170475A1

公开(公告)日：2023-06-01

申请号：US18147609

申请日：2022-12-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jiahua Liang ,  Shengan Xia ,  Fengchao Xie

IPC: H01M4/36 ,  H01M4/133 ,  H01M4/587 ,  H01M10/0525 ,  H01M4/1393 ,  C01B32/05 ,  C01B32/21

CPC classification number: H01M4/366 ,  H01M4/133 ,  H01M4/587 ,  H01M10/0525 ,  H01M4/1393 ,  C01B32/05 ,  C01B32/21 ,  C01P2002/02 ,  C01P2002/54 ,  C01P2004/84 ,  C01P2006/40 ,  H01M2004/027

Abstract: A lithium-ion rechargeable battery negative electrode active material and a preparation method thereof, a lithium-ion rechargeable battery negative electrode plate, and a lithium-ion rechargeable battery are disclosed. The negative electrode active material includes a carbon core and a coating layer formed on a surface of the carbon core, a material of the coating layer includes amorphous carbon and a doping element, and the doping element includes element nitrogen. The lithium-ion rechargeable battery negative electrode active material has the carbon core, and the coating layer that includes the doping element and the amorphous carbon is provided on the surface of the carbon core.

公开(公告)号：US20220123396A1

公开(公告)日：2022-04-21

申请号：US17424653

申请日：2019-12-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lun Lu ,  Da Hong ,  Jiahua Liang ,  Fan Xu ,  Fengchao Xie

IPC: H01M50/186 ,  H02J7/00 ,  H01M50/103 ,  H01M10/42

Abstract: A battery includes an unpackaged cell and a packaging film, where an edge of the unpackaged cell includes at least one first open space. The first open space runs through a thickness direction of the unpackaged cell. No unpackaged cell exists in the first open space. The packaging film encloses an enclosed space that accommodates the unpackaged cell. The packaging film forms a first sealing part in the first open space. The first sealing part does not cover the unpackaged cell. The first sealing part encloses a second open space with a packaging film on a sidewall of the first open space. The first open space partly overlaps the second open space.