公开(公告)号：US20240413508A1

公开(公告)日：2024-12-12

申请号：US18810537

申请日：2024-08-21

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Long Chen ,  Denghua Lin ,  Shoujun Huang ,  Xinxiang Chen ,  Yulian Zheng ,  Peng Wang ,  Haizu Jin

IPC: H01M50/627 ,  H01M50/103 ,  H01M50/15 ,  H01M50/249 ,  H01M50/578 ,  H01M50/593 ,  H01M50/682

Abstract: The present application provides a battery cell, a battery, an electrical device, and a method and device for manufacturing a battery cell. The battery cell comprises: a housing, a first wall of the housing being provided with a liquid injection hole; a first electrode assembly and a second electrode assembly; an insulating structure arranged between the two electrode assemblies and comprising a second wall and a third wall; a first surface of the insulating structure facing the first wall is provided with a third through hole, the third through hole being used for guiding into the insulating structure an electrolyte injected through the liquid injection hole, so that the electrolyte in the insulating structure flows through the first through hole towards the first electrode assembly and flows through the second through hole towards the second electrode assembly.

公开(公告)号：US12062750B1

公开(公告)日：2024-08-13

申请号：US18430512

申请日：2024-02-01

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Hu Xu ,  Siying Huang ,  Fenggang Zhao ,  Haizu Jin

IPC: H01M50/559 ,  H01M10/04 ,  H01M50/107 ,  H01M50/152 ,  H01M50/179 ,  H01M50/538 ,  H01M50/545 ,  H01M50/566

CPC classification number: H01M10/0431 ,  H01M10/0409 ,  H01M10/0422 ,  H01M50/107 ,  H01M50/152 ,  H01M50/538 ,  H01M50/545 ,  H01M50/559 ,  H01M50/566 ,  H01M2220/20

Abstract: A battery cell includes: a casing; an end cap assembly including an end cap body and an electrode terminal located on the end cap body; and an electrode assembly arranged in the casing and including a first electrode sheet and a second electrode sheet with opposite polarities; the first electrode sheet includes a first main portion and a first electrode tab protruding from the first main portion, and the second electrode sheet includes a second main portion and a second electrode tab protruding from the second main portion; an end of the winding body includes a first conductive region and a second conductive region, the first electrode tab is led out from the first conductive region, the second electrode tab is led out from the second conductive region, and adjacent first conductive region and second conductive region are arranged to be spaced along a radial direction of the winding body.

公开(公告)号：US11984608B2

公开(公告)日：2024-05-14

申请号：US17847347

申请日：2022-06-23

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Dongsheng Sun ,  Kun Fang ,  Zhisheng Chai ,  Qingkui Chi ,  Haizu Jin

IPC: H01M50/147 ,  H01M50/102 ,  H01M50/317 ,  H01M50/533 ,  H01M50/543

CPC classification number: H01M50/147 ,  H01M50/102 ,  H01M50/317 ,  H01M50/533 ,  H01M50/543 ,  H01M2220/20 ,  H01M2220/30

Abstract: Disclosed is a battery cell, a battery, a power consumption apparatus and a method and an apparatus for producing a battery cell. The battery cell includes: a housing, with a first opening; an electrode assembly, arranged in the housing; an end cover assembly, including an end cover, a pressure relief mechanism and a first insulating member, the end cover covers the first opening, the pressure relief mechanism is arranged on the end cover, the pressure relief mechanism is configured, when an internal pressure or temperature of the battery cell reaches a threshold, to be actuated, the first insulating member is located on a side of the end cover close to the electrode assembly to isolate the electrode assembly and the end cover, and the first insulating member is configured that a projection on the end cover along a thickness direction of the end cover covers the pressure relief mechanism.

公开(公告)号：US11978844B2

公开(公告)日：2024-05-07

申请号：US17135741

申请日：2020-12-28

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Chengdu Liang ,  Hu Xu ,  Haizu Jin ,  Yuqun Zeng

IPC: H01M10/04 ,  H01M10/0585 ,  H01M10/0587 ,  H01M50/204 ,  H01M50/249

CPC classification number: H01M10/0431 ,  H01M10/0413 ,  H01M10/0585 ,  H01M10/0587 ,  H01M50/204 ,  H01M50/249

Abstract: An electrode assembly and a related battery, and battery module are provided, wherein the electrode assembly includes: at least one positive electrode plate and at least one negative electrode plate, the number of all the positive and negative electrode plates is greater than or equal to 3; the positive and negative electrode plates are wound around the winding axis and arranged in a superimposing manner along a direction vertical to the winding axis, each positive electrode plate includes a positive main body part, at least part of the positive main body part is a positive active substance area, each negative electrode plate includes a negative main body part, at least part of the negative main body part is the negative active substance area, two ends of the negative active substance area along the winding axis both exceed corresponding ends of the adjacent positive active substance area.

公开(公告)号：US11962007B2

公开(公告)日：2024-04-16

申请号：US18179650

申请日：2023-03-07

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Liangfan Xu ,  Xing Li ,  Haizu Jin

IPC: H01M4/525 ,  H01M4/131 ,  H01M4/505 ,  H01M10/0525 ,  H01M4/02

CPC classification number: H01M4/525 ,  H01M4/131 ,  H01M4/505 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/028 ,  H01M2220/20

Abstract: The disclosure relates to the field of electrochemistry, and in particular to a lithium-ion secondary battery, a battery module, a battery pack, and a powered device. A lithium-ion secondary battery, includes a bare cell accommodating cavity in which a bare cell group including one or more bare cells A and one or more bare cells B is arranged, wherein the bare cell A includes a first positive electrode sheet including a first positive-electrode active material selected from a single crystal or single crystal-like low-nickel ternary positive electrode material A1, the bare cell B includes a second positive electrode sheet including a second positive-electrode active material and/or a third positive-electrode active material, the second positive-electrode active material is selected from a polycrystalline high-nickel ternary positive electrode material B1, and the third positive-electrode active material is selected from a polycrystalline low-nickel ternary positive electrode material B2.

公开(公告)号：US11955655B2

公开(公告)日：2024-04-09

申请号：US17138639

申请日：2020-12-30

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xingdi Chen ,  Kaijie You ,  Haizu Jin ,  Linggang Zhou ,  Peng Wang ,  Dongyang Shi

IPC: H01M50/30 ,  H01M10/48 ,  H01M50/143 ,  H01M50/147 ,  H01M50/204 ,  H01M50/24

CPC classification number: H01M50/30 ,  H01M10/482 ,  H01M50/143 ,  H01M50/147 ,  H01M50/204 ,  H01M50/24 ,  H01M2200/00 ,  H01M2220/20

Abstract: This application relates to the field of energy storage components, and in particular, to a protective plate, a battery unit assembly, a battery module group, and a vehicle. The protective plate is provided with a guide groove. The protective plate is configured to shield an explosion-proof valve of a battery cell. The guide groove is configured to be disposed corresponding to the explosion-proof valve, and is configured to guide a flow direction of a flame ejected from the explosion-proof valve. In this application, the guide groove is disposed on the protective plate to guide the flame to a direction away from passengers, thereby protecting the passengers from injury.

公开(公告)号：US11936024B2

公开(公告)日：2024-03-19

申请号：US15734355

申请日：2020-05-20

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Peng Wang ,  Kaijie You ,  Mu Qian ,  Haizu Jin ,  Xingdi Chen ,  Jun Ma

IPC: H01M10/6556 ,  H01M10/613 ,  H01M10/615 ,  H01M10/625 ,  H01M10/647 ,  H01M10/6567 ,  H01M10/658

CPC classification number: H01M10/6556 ,  H01M10/613 ,  H01M10/615 ,  H01M10/625 ,  H01M10/647 ,  H01M10/6567 ,  H01M10/658 ,  H01M2220/20

Abstract: The present application provides a battery pack, a method for producing a battery pack and a vehicle. The vehicle includes a vehicle body and a battery pack, the battery pack being disposed in the vehicle body. The battery pack includes a battery module and a case. The case has a containing chamber, and the battery module is located in the containing chamber. The battery module includes a plurality of battery units arranged in a horizontal direction, and each battery unit at least includes one battery cell. A size of the battery module in the horizontal direction is larger than a size of the battery module in a vertical direction. The size of the battery module in the vertical direction is L1, and a size of the battery pack in the vertical direction is L2, where 70%≤L1/L2≤95%.

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：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.

公开(公告)号：US11799161B2

公开(公告)日：2023-10-24

申请号：US17818407

申请日：2022-08-09

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Quanguo Li ,  Qian Liu ,  Yonghuang Ye ,  Fajun Huang ,  Haizu Jin

IPC: H01M50/209 ,  H01M50/267

CPC classification number: H01M50/209 ,  H01M50/267

Abstract: The present application provides a battery pack and a power consuming device powered by the battery pack. The battery pack includes a battery pack cavity and a plurality of battery cells received in the battery pack cavity. An interior space of the battery pack cavity can be divided into a first region with a temperature change rate of K1 and a second region with a temperature change rate of K2, where 0.066≤K1≤0.131 and 0.034≤K2≤0.066, K1 and K2 being expressed in ° C./min. The plurality of battery cells include at least one first battery cell arranged in the first region, and at least one second battery cell arranged in the second region. The battery pack of the present application can reduce or avoid the cask effect at low temperature and improve the energy retention rate at low temperature.