公开(公告)号：US12132217B2

公开(公告)日：2024-10-29

申请号：US17970603

申请日：2022-10-21

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Chengdu Liang ,  Quanguo Li ,  Yonghuang Ye ,  Qian Liu ,  Haizu Jin ,  Wei Li

IPC: H01M50/204 ,  H01M4/02 ,  H01M4/525 ,  H01M4/58 ,  H01M4/583 ,  H01M10/04

CPC classification number: H01M50/204 ,  H01M4/525 ,  H01M4/5825 ,  H01M4/583 ,  H01M10/0404 ,  H01M2004/021 ,  H01M2004/027 ,  H01M2004/028

Abstract: The present application discloses a battery module, a battery pack, an apparatus, and a method and device for manufacturing a battery module. The battery module includes n first-type battery cells and m second-type battery cells, n≥1, m≥1, and the n first-type battery cells and them second-type battery cells are arranged and satisfy: VED1>VED2, ΔF1>ΔF2, and (ΔF1×n+ΔF2×m)/(n+m)≤0.8×ΔF1, where VED1, VED2, ΔF1 and ΔF2 are respectively defined in the description.

公开(公告)号：US20240297419A1

公开(公告)日：2024-09-05

申请号：US18665584

申请日：2024-05-16

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Chunpeng Yu ,  Quanguo Li ,  Qian Liu ,  Yonghuang Ye ,  Dejun Xiao

IPC: H01M50/533 ,  H01M10/04 ,  H01M50/249 ,  H01M50/538 ,  H01M50/553 ,  H01M50/593

CPC classification number: H01M50/533 ,  H01M10/0431 ,  H01M50/249 ,  H01M50/538 ,  H01M50/553 ,  H01M50/593

Abstract: Provided are an electric device, a battery, and a battery unit and a manufacturing method. The battery unit includes a housing, electrode terminals, multiple battery cells, and current collecting members. The electrode terminals are provided at the top of the housing. The multiple battery cells are accommodated within the housing. At least two of the battery cells have different heights, and the current collecting members are provided within an accommodation space formed by a main body of a shortest battery cell and the top of the housing. The battery includes the foregoing battery unit. The electric device includes the foregoing battery. The manufacturing method of the battery unit includes providing current collecting members within an accommodation space formed by a main body of a shortest battery cell and the top of the housing. The electric device, battery, and battery unit and manufacturing method thereof improve space utilization and energy density.

公开(公告)号：US12002984B2

公开(公告)日：2024-06-04

申请号：US17985813

申请日：2022-11-11

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Quanguo Li ,  Yonghuang Ye ,  Chengdu Liang ,  Haizu Jin ,  Qian Liu ,  Xia Hu

IPC: H01M10/48 ,  H01M10/613 ,  H01M50/342 ,  H01M50/375

CPC classification number: H01M50/3425 ,  H01M10/486 ,  H01M10/613 ,  H01M50/375 ,  H01M2220/20

Abstract: This application relates to the field of energy storage technologies, and provides a battery, an apparatus, a preparation method of battery, and a preparation apparatus of battery. The battery includes a first battery cell and a second battery cell. The first battery cell includes a first pressure relief mechanism, the second battery cell includes a second pressure relief mechanism, an energy density of the first battery cell is greater than an energy density of the second battery cell, and an area of the first pressure relief mechanism is greater than an area of the second pressure relief mechanism. The apparatus includes the foregoing battery.

公开(公告)号：US11804590B2

公开(公告)日：2023-10-31

申请号：US18046157

申请日：2022-10-13

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Qian Liu ,  Quanguo Li ,  Xia Hu ,  Yonghuang Ye ,  Wei Li

IPC: H01M4/36 ,  H01M4/04 ,  H01M4/131 ,  H01M4/136 ,  H01M4/1391 ,  H01M4/1397 ,  H01M4/525 ,  H01M4/58 ,  H01M10/0525 ,  H01M10/058 ,  H01M4/02

CPC classification number: H01M4/364 ,  H01M4/0404 ,  H01M4/131 ,  H01M4/136 ,  H01M4/1391 ,  H01M4/1397 ,  H01M4/525 ,  H01M4/5825 ,  H01M10/058 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/028 ,  H01M2220/20

Abstract: A secondary battery and a preparation method thereof, and a battery module, battery pack, and apparatus containing a secondary battery are provided. In some embodiments, the secondary battery includes a positive electrode plate, a negative electrode plate, and an electrolyte, where the positive electrode plate includes a positive electrode current collector and a positive electrode film layer that is disposed on at least one surface of the positive electrode current collector and that includes a positive electrode active material, and the negative electrode plate includes a negative electrode current collector and a negative electrode film layer that is disposed on at least one surface of the negative electrode current collector and that includes a negative electrode active material; and the positive electrode active material includes a first material and a second material.

公开(公告)号：US20230112421A1

公开(公告)日：2023-04-13

申请号：US17933855

申请日：2022-09-21

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Tao Zhang ,  Jianfu He ,  Qian Liu ,  Xueyang Sun ,  Yonghuang Ye

IPC: H01M4/13

Abstract: An electrode assembly, secondary battery, battery module, battery pack and electrical device are provided. In some embodiments, the electrode assembly comprises a positive electrode plate, a negative electrode plate and a separator disposed between the positive electrode plate and the negative electrode plate, the positive electrode plate satisfies 0

公开(公告)号：US12051818B2

公开(公告)日：2024-07-30

申请号：US17139811

申请日：2020-12-31

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Guangjun Wang ,  Yonghuang Ye ,  Jiawel Zheng ,  Shaojun Niu

IPC: H01M50/242 ,  H01M50/209 ,  H01M50/211 ,  H01M50/291

CPC classification number: H01M50/242 ,  H01M50/209 ,  H01M50/211 ,  H01M50/291

Abstract: This application discloses a battery cushion and a forming method thereof, and a battery module and a forming method thereof. The battery cushion includes a body and breakable bubbles. The breakable bubbles are disposed in the body. The breakable bubbles include at least a first bubble and a second bubble. A breaking pressure of the first bubble is less than a breaking pressure of the second bubble, so that the battery cushion can release a space occupied by the battery cushion in a progressive manner under different external forces. The battery cushion disclosed in this application can not only achieve a pre-tightening force required during assembly of the battery module but also effectively relieve an expansive force generated during working of the battery module.

公开(公告)号：US20240178365A1

公开(公告)日：2024-05-30

申请号：US18420790

申请日：2024-01-24

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xiaofu Xu ,  Jianfu He ,  Chenxu Luo ,  Qian Liu ,  Yonghuang Ye ,  Yibo Shang

IPC: H01M4/131 ,  H01M4/485 ,  H01M4/525 ,  H01M10/0525 ,  H01M10/0587 ,  H01M4/02

CPC classification number: H01M4/131 ,  H01M4/485 ,  H01M4/525 ,  H01M10/0525 ,  H01M10/0587 ,  H01M2004/021 ,  H01M2004/028

Abstract: Provided is a positive electrode plate, a secondary battery, and a powered device. The positive electrode plate may be a positive electrode plate of a wound cell, and includes a waist region provided close to a waist portion and an end region provided away from the waist portion. The waist region is provided with a first positive electrode film, and the end region is provided with a second positive electrode film. The positive electrode plate may be a positive electrode plate for a laminated cell, which includes a central region provided close to a center and an edge region provided away from the center. The central region is provided with a first positive electrode film, and the edge region is provided with a second positive electrode film.

公开(公告)号：US11894573B2

公开(公告)日：2024-02-06

申请号：US17985813

申请日：2022-11-11

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Quanguo Li ,  Yonghuang Ye ,  Chengdu Liang ,  Haizu Jin ,  Qian Liu ,  Xia Hu

IPC: H01M10/48 ,  H01M50/342 ,  H01M50/375 ,  H01M10/613

CPC classification number: H01M50/3425 ,  H01M10/486 ,  H01M10/613 ,  H01M50/375 ,  H01M2220/20

Abstract: This application relates to the field of energy storage technologies, and provides a battery, an apparatus, a preparation method of battery, and a preparation apparatus of battery. The battery includes a first battery cell and a second battery cell. The first battery cell includes a first pressure relief mechanism, the second battery cell includes a second pressure relief mechanism, an energy density of the first battery cell is greater than an energy density of the second battery cell, and an area of the first pressure relief mechanism is greater than an area of the second pressure relief mechanism. The apparatus includes the foregoing battery.

公开(公告)号：US20230369556A1

公开(公告)日：2023-11-16

申请号：US18346794

申请日：2023-07-04

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xiao Chen ,  Guangjun Wang ,  Yonghuang Ye

IPC: H01M4/04 ,  H01M4/66 ,  H01M4/02

CPC classification number: H01M4/0404 ,  H01M4/661 ,  H01M2004/021

Abstract: Provided are a secondary battery which includes a positive electrode sheet, a negative electrode sheet, and a separator placed between the positive electrode sheet and the negative electrode sheet. In some embodiments, the positive electrode sheet includes a positive electrode current collector and positive film layers A1 and B1 respectively provided on two surfaces of the positive electrode current collector, and the negative electrode sheet includes a negative electrode current collector and negative film layers respectively provided on two surfaces of the negative electrode current collector, where capacities per unit area Cap A1 and Cap B1 of the positive film layers A1 and B1 satisfy Cap A1

公开(公告)号：US11804637B2

公开(公告)日：2023-10-31

申请号：US17890302

申请日：2022-08-18

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Qian Liu ,  Yonghuang Ye ,  Chengdu Liang ,  Haizu Jin

IPC: H01M50/51 ,  H01M50/491 ,  H01M50/446 ,  H01M4/505 ,  H01M4/525 ,  H01M4/58 ,  H01M10/0525 ,  H01M50/451 ,  H01M50/411 ,  H01M50/434 ,  H01M50/489 ,  H01M4/02

CPC classification number: H01M50/51 ,  H01M4/505 ,  H01M4/525 ,  H01M4/5825 ,  H01M10/0525 ,  H01M50/411 ,  H01M50/434 ,  H01M50/446 ,  H01M50/451 ,  H01M50/489 ,  H01M50/491 ,  H01M2004/028 ,  H01M2220/20

Abstract: The present application relates to a battery module, comprising a first type of battery cells and a second type of battery cells electrically connected at least in series, wherein the first type of battery cells and the second type of battery cells are battery cells with different chemical systems, the first type of battery cells comprises N first battery cells, the second type of battery cells comprises M second battery cells, N and M are positive integers, the first battery cell comprises a first separator and a first electrolyte, the second battery cell comprises a second separator and a second electrolyte, a kinetic characteristic factor x1 of the first battery cell is: x1=1000×(ε1×r1)/(τ1×t1×θ1), a kinetic characteristic factor x2 of the second battery cell is: x2=1000×(ε2×r2)/(τ2×t2×θ2), and x1 and x2 satisfy: 0.01≤x1/x2≤160.