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：US20240250283A1

公开(公告)日：2024-07-25

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: H01M10/04 ,  H01M50/107 ,  H01M50/152 ,  H01M50/538 ,  H01M50/545 ,  H01M50/559 ,  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：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：US11881585B2

公开(公告)日：2024-01-23

申请号：US18048445

申请日：2022-10-21

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Mengqin Zhang ,  Yanjie Zhao ,  Jianghui Lin ,  Xing Li ,  Haizu Jin

IPC: H01M4/62 ,  C07C329/06 ,  H01M4/02

CPC classification number: H01M4/623 ,  C07C329/06 ,  H01M4/625 ,  H01M2004/021 ,  H01M2004/028 ,  H01M2220/20

Abstract: A binder compound, a conductive binder, and a secondary battery containing the same are provided. In some embodiments, the binder compound of the present disclosure has a structure of formula (I), where R1 and R2 each independently represent a straight or branched C1-12 alkyl; R3 represents a halogen or cyano group; R4 represents a hydroxymethyl or amino; Z represents a straight or branched C1-12 alkylene; and m represents an integer selected from 7600-47000. The binder compound and the conductive binder of the present disclosure can improve the storage and cycle performances of the secondary battery.

公开(公告)号：US20230387518A1

公开(公告)日：2023-11-30

申请号：US18446290

申请日：2023-08-08

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Zhisheng Chai ,  Changsheng He ,  Haizu Jin

IPC: H01M50/124 ,  H01M50/538 ,  H01M50/536 ,  H01M50/117 ,  H01M10/04 ,  H01M50/107 ,  H01M50/179

CPC classification number: H01M50/1243 ,  H01M50/538 ,  H01M50/536 ,  H01M2220/20 ,  H01M10/0431 ,  H01M50/107 ,  H01M50/179 ,  H01M50/117

Abstract: An electrode plate, a battery cell, a battery and an electrical device are provided. The electrode plate includes an insulating substrate, a conductive layer, and an active material layer. The conductive layer is arranged on the surface of the insulating substrate. The active material layer is applied on the surface of the conductive layer away from the insulating substrate. The conductive layer includes a first part coated with the active material layer and a second part not coated with the active material layer. The first part and the second part are arranged along the first direction. The conductive layer has a resistivity of ρ1, a specific heat capacity of C, a density of ρ2, and a constant K=ρ1/(C·ρ2). The conductive layer has a thickness of d1, the first part has a size of W along the first direction, and d1, W and K satisfy: 0.001 J/(Ω·mm4·° C.)≤d1/(K·W)≤0.0075 J/(Ω·mm4·° C.).

公开(公告)号：US20230317948A1

公开(公告)日：2023-10-05

申请号：US18330093

申请日：2023-06-06

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Jianghui Lin ,  Yanjie Zhao ,  Xing Li ,  Haizu Jin

IPC: H01M4/62 ,  H01M4/04 ,  H01M4/1393 ,  H01M4/133

CPC classification number: H01M4/62 ,  H01M4/0404 ,  H01M4/0471 ,  H01M4/1393 ,  H01M4/133 ,  H01M2004/027

Abstract: An electrode plate and a method for preparing same are provided. The electrode plate according to this application includes a current collector and an electrode material layer disposed on at least one surface of the current collector. The electrode material layer includes an active material and optionally a conductive agent. The electrode material layer includes a compound represented by Formula (I). The electrode plate according to this application is characterized by a relatively high porosity, more uniform distribution of pores, a more noticeable effect of being initially infiltrated by an electrolytic solution, a higher capacity of retaining the electrolytic solution, alleviated initial polarization, and a reduced direct-current resistance (DCR), and therefore, can improve the performance of a battery that contains the electrode plate.

公开(公告)号：US11710872B2

公开(公告)日：2023-07-25

申请号：US17892646

申请日：2022-08-22

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Jianxiong Yang ,  Siying Huang ,  Jinmei Xu ,  Haizu Jin ,  Zhijun Guo ,  Linggang Zhou ,  Jiandong Yang

IPC: H01M50/15 ,  H01M50/586 ,  H01M50/533 ,  H01M50/103 ,  H01M50/55 ,  H01M50/593

CPC classification number: H01M50/15 ,  H01M50/103 ,  H01M50/533 ,  H01M50/55 ,  H01M50/586 ,  H01M50/593 ,  H01M2220/20

Abstract: An embodiment of the present application provides a battery cell, a battery, a power consumption device, and a manufacturing device and method for a battery cell. The battery cell includes a housing, an electrode assembly, an end cover assembly and a current collecting member. The electrode assembly is accommodated in the housing, and the electrode assembly includes a tab. The end cover assembly includes an end cover, an electrode terminal and an insulating member, the end cover is used to cover at an opening of the housing, the electrode terminal is mounted to the end cover, and the insulating member is located on one side of the end cover facing the electrode assembly. The current collecting member is used to connect the electrode terminal and the tab. This structure can make more space for the electrode assembly and can effectively increase the capacity of the battery cell.

公开(公告)号：US20230198054A1

公开(公告)日：2023-06-22

申请号：US18167083

申请日：2023-02-10

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Wenwei Chen ,  Wenlin Zhou ,  Xiangyan Bu ,  Xinxiang Chen ,  Peng Wang ,  Haizu Jin

IPC: H01M50/103 ,  H01M50/15 ,  H01M50/176 ,  H01M50/531 ,  H01M50/55

CPC classification number: H01M50/103 ,  H01M50/15 ,  H01M50/176 ,  H01M50/531 ,  H01M50/55 ,  H01M2220/20

Abstract: In some embodiments, the battery cell includes a shell, including an opening; an electrode unit, accommodated in the shell, the electrode unit including a main body portion and a tab portion protruding from the main body portion; a cap assembly, for connecting with the shell, and covering and closing the opening; and a first insulating member, accommodated in the shell and adapted to isolate at least part of the main body portion from the shell, the first insulating member including a first insulating plate, and the first insulating plate being disposed on a side of the main body portion facing the cap assembly and being attached to the main body portion. The first insulating member can insulate at least part of the main body portion from the shell.

公开(公告)号：US11296385B2

公开(公告)日：2022-04-05

申请号：US17353933

申请日：2021-06-22

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Haizu Jin ,  Linggang Zhou ,  Peng Wang ,  Dongyang Shi ,  Xingdi Chen ,  Fei Hu ,  Fenggang Zhao ,  Yanhuo Xiang ,  Yongshou Lin

IPC: H01M50/209 ,  H01M10/613 ,  H01M10/6556 ,  H01M50/533 ,  H01M50/591

Abstract: The embodiments of the present disclosure provide a battery module and a battery pack. A battery module includes: a cooling component; and a battery group, comprising secondary batteries disposed side by side in a first direction and each including a case having an accommodating hole, an electrode assembly disposed in the accommodating hole, and a cap assembly, the electrode assembly including two end faces disposed opposite to each other in a second direction intersecting the first direction and an electrode tab extending from each end face. The secondary batteries each includes two sides opposite to each other in the second direction, the cooling component is disposed on at least one of the two sides, the cooling component and the end face are respectively disposed on two sides of the case in the second direction, and the cooling component is connected and fixed to each of the secondary batteries.

公开(公告)号：US20210313661A1

公开(公告)日：2021-10-07

申请号：US17352352

申请日：2021-06-20

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Yuanbao CHEN ,  Rui Yang ,  Haizu Jin ,  Dongyang Shi ,  Ning Chen ,  Quankun Li

IPC: H01M50/538 ,  H01M50/209 ,  H01M50/186

Abstract: The present application relates to a secondary battery and a battery module. The secondary battery comprises: a casing, which is provided with an accommodating hole with an opening; a top cover assembly, which is in sealed connection with the casing to close the opening; an electrode assembly, which is arranged in the accommodating hole, and comprises two end faces opposite to a first direction perpendicular to an axial direction of the accommodating hole, and tabs extending from the end faces, the electrode assembly comprises two or more electrode units, wherein two or more electrode units are stacked in the axial direction, and in a second direction perpendicular to the axial direction and the first direction, the size of the tabs is smaller than that of the end faces; and a current collector, which comprises a body portion.