公开(公告)号：US20230343987A1

公开(公告)日：2023-10-26

申请号：US18215808

申请日：2023-06-28

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Wei Zhang ,  Xiaowei Zhang ,  Xiang Wu ,  Yuqian Wen

IPC: B65H18/10 ,  H01M10/04

CPC classification number: B65H18/10 ,  H01M10/0409 ,  B65H2701/19 ,  B65H2405/461

Abstract: Provided are a winding device and a winding apparatus. An inner shaft of the winding device is configured to clamp an electrode assembly; and an outer shaft of the winding device is configured to wind the electrode assembly. The winding device includes: a first slider and a first pusher, where the first slider may reciprocate in a first sliding slot in the first pusher in a first direction, and an extension direction of the first sliding slot is inclined from the first direction such that the first pusher drives a first inner shaft to reciprocate in a second direction, the second direction being perpendicular to the first direction; and a second slider and a second pusher, where the second slider may reciprocate in a second sliding slot in the second pusher in a third direction, and an extension direction of the second sliding slot is inclined from the third direction.

公开(公告)号：US11996508B2

公开(公告)日：2024-05-28

申请号：US18326322

申请日：2023-05-31

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xiaowei Zhang ,  Jun Ni ,  Zhiwen Wang ,  Yuqian Wen ,  Minghao Tang ,  Chao Xie

IPC: H01M10/04

CPC classification number: H01M10/0409

Abstract: A winding shaft structure includes a winding shaft holder rotatable around an axial direction of the winding shaft structure, a first shaft group connected to one side of the winding shaft holder in the axial direction and configured to rotate together with the winding shaft holder, a second shaft group disposed on a side of the first shaft group in a radial direction of the winding shaft structure, a connecting member connected between the first shaft group and the second shaft group such that the second shaft group is movable with respect to the first shaft group in the radial direction via the connecting member, and a piezoelectric adjustment member disposed between the first shaft group and the second shaft group and deformable in the radial direction to adjust a distance between the first shaft group and the second shaft group.

公开(公告)号：US20240317528A1

公开(公告)日：2024-09-26

申请号：US18735198

申请日：2024-06-06

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xiaowei Zhang ,  Wei Zhang ,  Qinglin Bai ,  Yuqian Wen ,  Minghao Tang ,  Shengwu Zhang

IPC: B65H19/22 ,  H01M10/04

CPC classification number: B65H19/2292 ,  H01M10/0409 ,  H01M10/0431 ,  B65H2301/418526 ,  B65H2401/13 ,  B65H2401/20 ,  B65H2701/18422 ,  B65H2701/19

Abstract: Provided are a winding mandrel, a winding machine, and a battery cell winding method. The winding mandrel includes a first connecting member and a second connecting member configured to be combined with the first connecting member. The second connecting member and the first connecting member are arranged coaxially, and length of the combined first connecting member and second connecting member is greater than length of the first connecting member or the second connecting member. Changing a structure of a winding mandrel improves stiffness of the winding mandrel and improves the efficiency and quality of a winding operation.

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：US20250136400A1

公开(公告)日：2025-05-01

申请号：US19008656

申请日：2025-01-03

Applicant: JIANGSU CONTEMPORARY AMPEREX TECHNOLOGY LIMITED ,  CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xiaowei Zhang ,  Hui Wei ,  Xiang Wu ,  Guoda Huang ,  Yuqian Wen ,  Minghao Tang ,  Shengwu Zhang

IPC: B65H23/00 ,  B65H23/195

Abstract: The present application discloses a winding method and a winding system, and relates to the technical field of battery fabrication. The winding method includes: obtaining a first parameter and a second parameter of each electrode assembly on a winding needle in real time, the first parameter being any one of a number of winding layers, a sheet length and a winding roll diameter, and the second parameter being one or both of the remaining two of the number of winding layers, the sheet length and the winding roll diameter; comparing the second parameters respectively with corresponding preset parameter ranges, the preset parameter ranges being the ranges of the second parameters corresponding to the first parameters of preset standard models corresponding to the electrode assemblies; and adjusting, in response to the second parameter exceeding the corresponding preset parameter range, sheets to be wound of the corresponding electrode assembly.

公开(公告)号：US12140413B2

公开(公告)日：2024-11-12

申请号：US18620924

申请日：2024-03-28

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xiaowei Zhang ,  Zhiwen Wang ,  Wei Zhang ,  Yuqian Wen ,  Minghao Tang ,  Shengwu Zhang

IPC: G01B11/14 ,  H01M10/04

Abstract: A cell winding calibration method includes: obtaining a first reference distance between first and second reference lines; obtaining a reference number of pixels included in the first reference distance, and determining, based on the first reference distance and the reference number of pixels included in the first reference distance, an actual distance corresponding to a single pixel; obtaining an actual number of pixels included in a distance between an edge of a winding substrate and the first or second reference line, and determining real-time position information of the edge of the winding substrate based on the actual number of pixels included in the distance between the edge of the winding substrate and the first or second reference line and the actual distance corresponding to a single pixel; and calibrating the winding substrate based on the real-time position information of the edge of the winding substrate.

公开(公告)号：US11894509B2

公开(公告)日：2024-02-06

申请号：US18215808

申请日：2023-06-28

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Wei Zhang ,  Xiaowei Zhang ,  Xiang Wu ,  Yuqian Wen

IPC: H01M10/04 ,  H01M10/0587

CPC classification number: H01M10/0409 ,  H01M10/0587 ,  B65H2405/461

Abstract: Provided are a winding device and a winding apparatus. An inner shaft of the winding device is configured to clamp an electrode assembly; and an outer shaft of the winding device is configured to wind the electrode assembly. The winding device includes: a first slider and a first pusher, where the first slider may reciprocate in a first sliding slot in the first pusher in a first direction, and an extension direction of the first sliding slot is inclined from the first direction such that the first pusher drives a first inner shaft to reciprocate in a second direction, the second direction being perpendicular to the first direction; and a second slider and a second pusher, where the second slider may reciprocate in a second sliding slot in the second pusher in a third direction, and an extension direction of the second sliding slot is inclined from the third direction.