公开(公告)号：US20230318073A1

公开(公告)日：2023-10-05

申请号：US18328719

申请日：2023-06-03

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

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

IPC: H01M10/647 ,  H01M50/209 ,  H01M50/51

CPC classification number: H01M10/647 ,  H01M50/209 ,  H01M50/51

Abstract: A battery module includes one or more first battery cells and one or more second battery cells. A first number a of the one or more first battery cells is greater than or equal to a second number b of the one or more second battery cells. A first product X1 of a first volumetric energy density E1 and a first thickness T1 of each of the one or more first battery cells and a second product X2 of a second volumetric energy density E2 and a second thickness T2 of each of the one or more second battery cells satisfy. 0.35≤X1/X2≤18.

公开(公告)号：US20230170484A1

公开(公告)日：2023-06-01

申请号：US18069187

申请日：2022-12-20

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Quanguo LI ,  Qian LIU ,  Yonghuang YE ,  Jianfu HE ,  Fajun HUANG ,  Chunpeng YU ,  Dejun XIAO

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

CPC classification number: H01M4/623 ,  H01M10/0525 ,  H01M4/505 ,  H01M4/525 ,  H01M4/625 ,  H01M2004/028

Abstract: A positive electrode sheet includes a current collector, a resistance layer disposed on the current collector, and a positive electrode active material layer. The current collector includes a coating region and a non-coating region. The resistance layer includes a conductive agent and a first binder. The positive electrode active material layer includes a positive electrode active material, a conductive agent, and a second binder. A resistance of the resistance layer is greater than a resistance of the positive electrode active material layer. In a cross section of the positive electrode sheet, a projection of a part of the positive electrode active material layer on the current collector overlaps with a projection of the resistance layer on the current collector, and a projection of another part of the positive electrode active material layer on the current collector does not overlap with the projection of the resistance layer on the current collector.

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：US20230402580A1

公开(公告)日：2023-12-14

申请号：US18449555

申请日：2023-08-14

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Chenhui LIN ,  Jianfu HE ,  Qian LIU ,  Yonghuang YE ,  Haizu JIN

IPC: H01M4/13 ,  H01M10/0587 ,  H01M10/0525

CPC classification number: H01M4/13 ,  H01M10/0587 ,  H01M10/0525 ,  H01M2220/20

Abstract: An electrode assembly includes a current collector. The current collector includes a first coating region and a second coating region. The first coating region is coated with an active substance material and the second coating region is coated with a lithiation material. In an extension direction of the current collector, a gap is disposed between the first coating region and the second coating region.

公开(公告)号：US20230378546A1

公开(公告)日：2023-11-23

申请号：US18366342

申请日：2023-08-07

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Quanguo LI ,  Yonghuang YE ,  Qian LIU ,  Jianfu HE ,  Fajun HUANG ,  Chenhui LIN

IPC: H01M10/0585 ,  H01M4/525 ,  H01M4/58 ,  H01M4/62 ,  H01M4/583

CPC classification number: H01M10/0585 ,  H01M4/525 ,  H01M4/5825 ,  H01M4/625 ,  H01M4/623 ,  H01M4/583 ,  H01M2004/028

Abstract: A secondary battery includes a positive electrode plate. that includes a positive current collector, a first positive active material layer distributed on one side of the positive current collector, and a second positive active material layer distributed on an other side of the positive current collector and a negative electrode plate that includes a negative current collector, a first negative active material layer distributed on one side of the negative current collector and opposite to the second positive active material layer, and a second negative active material layer distributed on an other side of the negative current collector. A resistance of the first positive active material layer is R1, a resistance of the second positive active material layer is R2, a resistance of the first negative active material layer is R3, a resistance of the second negative active material layer is R4.

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：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.

公开(公告)号：US20240145785A1

公开(公告)日：2024-05-02

申请号：US18409809

申请日：2024-01-11

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Jianfu HE ,  Qian LIU ,  Yonghuang YE ,  Haizu JIN ,  Tao ZHANG ,  Xueyang SUN

IPC: H01M10/0587 ,  H01M10/0525 ,  H01M10/647 ,  H01M50/249

CPC classification number: H01M10/0587 ,  H01M10/0525 ,  H01M10/647 ,  H01M50/249 ,  H01M2220/20

Abstract: This application provides an electrode assembly, a battery cell, a battery, and an electric apparatus, and pertains to the field of battery technologies. The electrode assembly may include a negative electrode plate and a positive electrode plate. The negative electrode plate may include a negative electrode active substance layer, and a first electrolyte storage trough may be disposed on the negative electrode active substance layer. The positive electrode plate may include a positive electrode active substance layer, the positive electrode active substance layer and the negative electrode active substance layer may be disposed opposite each other in a first direction, and a second electrolyte storage trough may be disposed on the positive electrode active substance layer, the second electrolyte storage trough and the first electrolyte storage trough being disposed opposite each other in the first direction.

公开(公告)号：US20230369701A1

公开(公告)日：2023-11-16

申请号：US18357389

申请日：2023-07-24

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Jianfu HE ,  Yonghuang YE ,  Qian LIU ,  Jingxuan SUN ,  Xiaofu XU ,  Xueyang SUN ,  Haizu JIN

IPC: H01M50/242

CPC classification number: H01M50/242 ,  H01M2220/20

Abstract: This application discloses a battery unit. The battery unit includes a housing, at least one cell, and a buffer. The at least one cell is accommodated in the housing, the buffer is disposed corresponding to a side wall of the cell, and the buffer is provided with an accommodating cavity. A periphery of the accommodating cavity includes at least one packaging structure, the packaging structure includes at least one level of packaging region with a predetermined length. When pressure in the accommodating cavity exceeds packaging strength of the packaging structure, the packaging region is opened to form a buffer space that communicates with the accommodating cavity, reducing influence caused by swelling of the cell.

公开(公告)号：US20230163419A1

公开(公告)日：2023-05-25

申请号：US18094415

申请日：2023-01-09

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Jianfu HE ,  Yonghuang YE ,  Qian LIU ,  Xueyang SUN ,  Tao ZHANG ,  Haizu JIN

IPC: H01M50/474

CPC classification number: H01M50/474

Abstract: A battery cell may include a housing, an electrode assembly, and a first support structure. The housing may be provided with an accommodating cavity. The electrode assembly may be accommodated in the accommodating cavity, and include a main body portion and a thinned portion. At least one end of the main body portion in a first direction may be connected to the thinned portion. The first support structure may be arranged corresponding to the thinned portion, and configured to support the thinned portion when the electrode assembly is expanded.