公开(公告)号：US20230387380A1

公开(公告)日：2023-11-30

申请号：US18147201

申请日：2022-12-28

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Suogang GUO ,  Chenghua FU ,  Chenchen ZHANG ,  Yonghuang YE

IPC: H01M4/133 ,  H01M4/36 ,  H01M4/62

CPC classification number: H01M4/133 ,  H01M4/366 ,  H01M4/628 ,  H01M2004/027

Abstract: A secondary battery includes a positive electrode plate and a negative electrode plate. The negative electrode plate includes a negative electrode current collector, a negative electrode active material layer provided on at least one surface of the negative electrode current collector, and an insulation layer and a reaction layer sequentially provided on a surface of the negative electrode active material layer on a side opposite to the negative electrode current collector. The reaction layer includes at least one of graphite, silicon, silicon oxide, silicon suboxide, tin oxide, copper oxide, or zinc oxide. A capacity per unit area, A1 (mAh/cm2), of a positive electrode active material layer in the positive electrode plate and a capacity per unit area, B1 (mAh/cm2), of the negative electrode active material layer in the negative electrode plate satisfy B1/A1

公开(公告)号：US20230361429A1

公开(公告)日：2023-11-09

申请号：US18353679

申请日：2023-07-17

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Suogang GUO ,  Chenghua FU ,  Yonghuang YE ,  Chenchen ZHANG ,  Wen CHANG ,  Chang ZHU

IPC: H01M50/449 ,  H01M50/491 ,  H01M50/466 ,  H01M10/0587

CPC classification number: H01M50/449 ,  H01M50/491 ,  H01M50/466 ,  H01M10/0587 ,  H01M10/0525

Abstract: An electrode assembly includes a first electrode sheet, a second electrode sheet, and a first separator. The first electrode sheet and second electrode sheet are of opposite polarities, the first separator is configured to separate the first electrode sheet and the second electrode sheet. The first electrode sheet, the second electrode sheet, and the first separator are wound in a winding direction. The electrode assembly has a bending region. The bending region is provided with a second separator that is laminated with the first separator and configured to separate the first electrode sheet and the second electrode sheet adjacent to each other. At least part of ions deintercalated from the first electrode sheet are able to pass through the first separator and the second separator and be intercalated in the second electrode sheet.

公开(公告)号：US20230307927A1

公开(公告)日：2023-09-28

申请号：US18324879

申请日：2023-05-26

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Quanguo LI ,  Qian LIU ,  Yonghuang YE ,  Haizu JIN ,  Fajun HUANG ,  Xiaofu XU ,  Jun PENG

IPC: H02J7/00 ,  H01M10/42 ,  G01R31/382 ,  G01R31/367 ,  G01R31/36

CPC classification number: H02J7/0019 ,  H01M10/4207 ,  G01R31/382 ,  G01R31/367 ,  G01R31/3648 ,  H01M10/425 ,  H01M2010/4271

Abstract: A control method of a battery apparatus includes acquiring a state parameter of a first battery module of the battery apparatus, controlling the first battery module and a charging device to form a first charging loop in response to the state parameter of the first battery module being less than a preset threshold, and controlling the first battery module, a second battery module of the battery apparatus, and the charging device to be connected in series to form a second charging loop in response to the state parameter of the first battery module being greater than or equal to the preset threshold. A charging rate of the first charging loop is higher than a charging rate of the second charging loop.

公开(公告)号：US20230211701A1

公开(公告)日：2023-07-06

申请号：US18182841

申请日：2023-03-13

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Chenxu LUO ,  Jianfu HE ,  Qian LIU ,  Yu YAN ,  Yonghuang YE ,  Haizu JIN

IPC: B60L58/16 ,  B60L58/18 ,  B60L58/24 ,  H01M10/44 ,  H01M50/572 ,  H01M50/155 ,  H01M4/485

CPC classification number: B60L58/16 ,  B60L58/18 ,  B60L58/24 ,  H01M10/44 ,  H01M50/572 ,  H01M50/155 ,  H01M4/485 ,  B60L2240/547 ,  B60L2240/545

Abstract: A charging method for a secondary battery including a lithium-supplementing material. The method includes acquiring a first state of health of the secondary battery in response to the secondary battery being at a preset charging node, activating the lithium-supplementing material in response to the first state of health being less than or equal to a first threshold to supplement lithium for the secondary battery, performing a charging process on the secondary battery, determining a second state of health of the secondary battery based on a working parameter of the secondary battery in the charging process, and charging the secondary battery in response to the second state of health being greater than a second threshold.

公开(公告)号：US20230061760A1

公开(公告)日：2023-03-02

申请号：US18053493

申请日：2022-11-08

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Quanguo LI ,  Yonghuang YE ,  Chengdu LIANG ,  Haizu JIN ,  Qian LIU ,  Xia HU ,  Xiaofu XU

IPC: H01M10/658 ,  H01M50/375

Abstract: This application provides a battery, an apparatus, a preparation method of battery, and a preparation apparatus of battery. The battery includes a first battery cell, a second battery cell, and a first thermal insulation member. The second battery cell is disposed adjacent to the first battery cell, an energy density of the second battery cell is less than that of the first battery cell, and the first thermal insulation member is disposed between the first battery cell and the second battery cell.

公开(公告)号：US20220393291A1

公开(公告)日：2022-12-08

申请号：US17887644

申请日：2022-08-15

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xiaofu XU ,  Yonghuang YE ,  Qian LIU ,  Haizu JIN ,  Chengdu LIANG

IPC: H01M50/267 ,  H01M50/209 ,  H01M50/51 ,  H01M4/583 ,  H01M10/04

Abstract: The present application relates to a battery module, including a first-type battery cell and a second-type battery cell electrically connected at least in series, the first-type battery cell and the second-type battery cell are battery cells of different chemical systems, the first-type battery cell includes N first battery cell(s), the second-type battery cell includes M second battery cell(s); the first battery cell includes a first negative electrode plate, the second battery cell includes a second negative electrode plate, a ratio of a conductivity of an electrolyte solution (25° C.) of the first battery cell to a coating mass per unit area of the first negative electrode plate is denoted as Ml, and a ratio of a conductivity of an electrolyte solution (25° C.) of the second battery cell to a coating mass per unit area of the second negative electrode plate is denoted as M2, M1>M2, and 0.08≤M1≤11, 0.03≤M2≤4.62.

公开(公告)号：US20220311087A1

公开(公告)日：2022-09-29

申请号：US17842114

申请日：2022-06-16

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Wanqiu MENG ,  Qian LIU ,  Yonghuang YE

IPC: H01M50/375 ,  H01M50/15 ,  H01M50/342

Abstract: Embodiments of the application provide a cover assembly, a battery cell, a battery, an electric device, a method and an apparatus. The cover assembly includes a cover plate, a fixing member, a breathable film and a support, the cover plate being provided with a first through hole, the fixing member being used for being connected to the cover plate and provided with a second through hole, where the second through hole is configured to be in gas communication with the first through hole, the breathable film being connected to the fixing member and used for covering the second through hole, the second through hole being filled with the support, and the support being connected to the fixing member. According to the application, a release requirement of gas in the battery cell can be met, and meanwhile, safety performance of the battery cell can be improved.

公开(公告)号：US20240258602A1

公开(公告)日：2024-08-01

申请号：US18604554

申请日：2024-03-14

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Jianfu HE ,  Qian LIU ,  Yonghuang YE ,  Quanguo LI ,  Xiaofu XU ,  Haizu JIN

IPC: H01M10/617 ,  H01M10/625 ,  H01M10/651 ,  H01M10/658 ,  H01M50/289

CPC classification number: H01M10/617 ,  H01M10/625 ,  H01M10/651 ,  H01M10/658 ,  H01M50/289 ,  H01M2220/20

Abstract: The present application provides a battery pack and a power consuming device. The battery pack includes a battery pack case; and first battery cells and second battery cells that are accommodated in the battery pack case, wherein compared with the second battery cells, the first battery cells are arranged at positions where heat exchange with surroundings is more likely to occur in the battery pack case. It is assumed that the first battery cells each have a capacity C1 and a direct-current impedance R1, wherein X1=C1*R1, the second battery cells each have a capacity C2 and a direct-current impedance R2, wherein X2=C2*R2, and X1 and X2 satisfy 1.1≤X1/X2≤2.0.

公开(公告)号：US20240213620A1

公开(公告)日：2024-06-27

申请号：US18599498

申请日：2024-03-08

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Suogang GUO ,  Chenghua FU ,  Wen CHANG ,  Yonghuang YE

IPC: H01M50/449 ,  H01M10/0525 ,  H01M10/0587 ,  H01M50/46

CPC classification number: H01M50/449 ,  H01M10/0587 ,  H01M50/46 ,  H01M10/0525

Abstract: Provided are an electrode assembly, a battery cell, a battery, and an electric apparatus. The electrode assembly comprises a positive electrode plate, a negative electrode plate, and a separation assembly, and the separation assembly is configured to separate the positive electrode plate from the negative electrode plate. At least part of the separation assembly is provided as a multi-layer structure area, and at least part of the multi-layer structure area is located between the positive electrode plate and negative electrode plate adjacent to each other.

公开(公告)号：US20240162544A1

公开(公告)日：2024-05-16

申请号：US18423607

申请日：2024-01-26

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Quanguo LI ,  Yonghuang YE ,  Qian LIU ,  Jianfu HE ,  Xiaofu XU

IPC: H01M50/209 ,  H01M50/264

CPC classification number: H01M50/209 ,  H01M50/264

Abstract: A battery module includes at least two rows of battery cells stacked together along the width direction of the battery cells, the at least two rows of battery cells comprising a first row of battery cells and a second row of battery cells that are adjacent to each other. The first row of battery cells and the second row of battery cells include a plurality of battery cells in total, where some of the battery cells in the plurality of battery cells have different lengths from the remaining battery cells. Along the width direction of the battery cells, a centerline along the length direction of at least one battery cell in the first row of battery cells is not collinear with a centerline along the length direction of at least one battery cell in the second row of battery cells.