公开(公告)号：US20230402641A1

公开(公告)日：2023-12-14

申请号：US18456233

申请日：2023-08-25

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Chao XIE ,  Yiruo Wang ,  Yaojin Chen ,  Wankui Zhao ,  Guoda Huang ,  Shengsheng Hu

IPC: H01M10/04 ,  H01M10/28

CPC classification number: H01M10/0409 ,  H01M10/286

Abstract: A winding device and a material winding method are provided. The winding device is configured to wind a material and includes: a winding switching mechanism, a compounding mechanism and a breaking mechanism. The winding switching mechanism includes a rotating disc and a plurality of winding pins arranged on the rotating disc at intervals. The material is wound around one winding pin along a preset path. The compounding mechanism is provided upstream of the winding pin along the preset path and configured to laminate and then compound the plural layers of materials at a preset position. The breaking mechanism is provided between the compounding mechanism and any winding pin along the preset path and configured to break the compounded plural layers of materials at a compounding region.

公开(公告)号：US11961955B2

公开(公告)日：2024-04-16

申请号：US17712087

申请日：2022-04-02

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Yiruo Wang ,  Zhiyang Wu ,  Xiao Wang ,  Chengcheng Jiang ,  Chao Xie ,  Liangzhen Dai

IPC: H01M10/04 ,  H01M10/0525 ,  H01M50/10 ,  H01M50/103

CPC classification number: H01M10/0409 ,  H01M10/0431 ,  H01M10/0468 ,  H01M50/103

Abstract: The present application relates to a method and an apparatus for manufacturing an electrode assembly of a secondary battery. Embodiments of the present application propose a method for manufacturing an electrode assembly of a secondary battery, the method comprising joining a positive electrode plate and a first separator to form a positive electrode composite plate body; joining a negative electrode plate and a second separator to form a negative electrode composite plate body; winding the positive electrode composite plate body and the negative electrode composite plate body together to form an electrode assembly, wherein the positive electrode plate and the negative electrode plate are disposed to isolate from each other by the first separator and the second separator.

公开(公告)号：US12027673B2

公开(公告)日：2024-07-02

申请号：US18326350

申请日：2023-05-31

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yiruo Wang ,  Zhiyang Wu ,  Gang Lin ,  Chao Xie ,  Guoda Huang ,  Yongli Zhang ,  Mingjian Liu

IPC: H01M10/0587

CPC classification number: H01M10/0587

Abstract: An electrode assembly manufacturing device includes a winding mechanism, a heating mechanism, a conveyor belt arranged between the heating mechanism and the winding mechanism, and a forming mechanism. The winding mechanism is configured to wind a positive electrode sheet, a separator, and a negative electrode sheet into an electrode assembly. The conveyor belt is configured to transfer the electrode assembly from the winding mechanism to the heating mechanism. The heating mechanism is configured to heat the electrode assembly. The forming mechanism is configured to press and form the electrode assembly.

公开(公告)号：US11949059B2

公开(公告)日：2024-04-02

申请号：US18213277

申请日：2023-06-23

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Zhiyang Wu ,  Yiruo Wang ,  Gang Lin ,  Guohang Liao

IPC: H01M10/0587 ,  H01M10/04

CPC classification number: H01M10/0409 ,  H01M10/0431 ,  H01M10/0587

Abstract: A winding method may comprise clamping heads of an anode plate, a cathode plate and a separator between a first half winding needle and a second half winding needle of a winding needle assembly at a winding station; and rotating the winding needle assembly at the winding station to wind the anode plate, the cathode plate and the separator to form an electrode assembly.

公开(公告)号：US11841328B2

公开(公告)日：2023-12-12

申请号：US18135743

申请日：2023-04-18

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Guoda Huang ,  Weizhi Zhou ,  Yuanfu Chen ,  Qingqing Song ,  Kai Cui ,  Minjiang Xu ,  Yiruo Wang ,  Gang Lin

IPC: G01B11/04 ,  G01N21/892

CPC classification number: G01N21/892 ,  G01B11/043 ,  G01N2201/126

Abstract: A method and a device for testing an electrode sheet, the method may comprise: acquiring M pieces of test data of a tab, wherein the tab protrudes from the end face of the electrode sheet along the first direction, the M pieces of test data are the test data of the tab at M consecutive positions along the second direction, the M pieces of test data are the test data of the height of the tab in the first direction, the second direction is perpendicular to the first direction, and M is a positive integer greater than 1; and determining whether the shape of the tab is normal based on the M pieces of test data.

公开(公告)号：US11929464B2

公开(公告)日：2024-03-12

申请号：US16964324

申请日：2019-10-12

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Yiruo Wang ,  Xiaowei Zhang ,  Hongwen Chang ,  Xiao Wang ,  Peichao Wang ,  Xi Chen

IPC: H01M10/0587 ,  B65H23/26 ,  H01M4/04

CPC classification number: H01M10/0587 ,  B65H23/26 ,  H01M4/04 ,  B65H2601/2531 ,  B65H2601/525

Abstract: The present disclosure relates to a conveying roller for conveying a cell pole piece, the cell pole piece comprising a main body and pole tabs, the main body comprising a bearing area and a transition area, each of the pole tabs comprising a root portion connected to the transition area, a middle section and a top portion, and the conveying roller comprising: a central axis, a first end face and a second end face disposed opposite to each other along the central axis, a transmission portion and an avoidance position provided between the first end face and the second end face, wherein the transmission portion is rotatable around the central axis, the bearing area is contactable with the transmission portion, so that the transmission portion applies a transmission friction force to the cell pole piece, and the avoidance position is capable of avoiding the transition area and the pole tabs.

公开(公告)号：US11476492B2

公开(公告)日：2022-10-18

申请号：US17058463

申请日：2020-06-02

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Chengdu Liang ,  Yiruo Wang ,  Chao Yang ,  Minghao Tang ,  Xiao Wang ,  Jiang Lin ,  Chuangchuang Xiang

IPC: H01M10/04

Abstract: The present application relates to a device for preparing an electrode assembly and a preparation method of the electrode assembly. Wherein the device for preparing the electrode assembly includes: a winding assembly; a plurality of first electrode plate unwinding apparatuses, configured to provide a plurality of first electrode plates for the winding assembly; and at least one second electrode plate unwinding apparatus, configured to provide at least one second electrode plate for the winding assembly, wherein a polarity of the first electrode plate is opposite to a polarity of the second electrode plate; and wherein the winding assembly is configured to wind the plurality of first electrode plates and the at least one second electrode plate, to form an electrode assembly. The present application is used for improving winding efficiency of the electrode assembly.

公开(公告)号：US20220223897A1

公开(公告)日：2022-07-14

申请号：US17712087

申请日：2022-04-02

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Yiruo Wang ,  Zhiyang Wu ,  Xiao Wang ,  Chengcheng Jiang ,  Chao Xie ,  Liangzhen Dai

IPC: H01M10/04

Abstract: The present application relates to a method and an apparatus for manufacturing an electrode assembly of a secondary battery. Embodiments of the present application propose a method for manufacturing an electrode assembly of a secondary battery, the method comprising joining a positive electrode plate and a first separator to form a positive electrode composite plate body; joining a negative electrode plate and a second separator to form a negative electrode composite plate body; winding the positive electrode composite plate body and the negative electrode composite plate body together to form an electrode assembly, wherein the positive electrode plate and the negative electrode plate are disposed to isolate from each other by the first separator and the second separator.