公开(公告)号：US20230382675A1

公开(公告)日：2023-11-30

申请号：US18343214

申请日：2023-06-28

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Ruchu YU ,  Shaojun Qiu ,  Tiefeng Wu

IPC: B65H19/26 ,  B65H18/08

CPC classification number: B65H19/26 ,  B65H18/08 ,  B65H2408/2364 ,  B65H2301/515 ,  B65H2301/418

Abstract: This application discloses a rewinding apparatus and a rewinding method. The rewinding apparatus is configured to rewind a strip. The rewinding apparatus includes a rewinding mechanism and a switching mechanism. The rewinding mechanism includes two shafts that are opposite to each other along a first direction and spaced out. The two shafts are configured to rewind the strip along different conveyance paths separately. The switching mechanism includes a moving roller. The moving roller is configured to drive the strip to switch from one shaft to another shaft so that the strip switches from one conveyance path to another conveyance path. The rewinding apparatus and rewinding method disclosed in this application achieve high space efficiency and high switching efficiency.

公开(公告)号：US20230294211A1

公开(公告)日：2023-09-21

申请号：US18324430

申请日：2023-05-26

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Tiefeng WU ,  Xiangqiang HUANG ,  Ruchu YU ,  Zhiyong DENG

IPC: B23K26/38 ,  H01M10/04

CPC classification number: B23K26/38 ,  H01M10/0404

Abstract: A die-cutting device includes a conveying mechanism configured to convey an electrode plate including uncoated and coated regions connected to each other, a cutting mechanism located on one side of the electrode plate in a thickness direction and configured to cut the uncoated region to form a scrap portion and a tab connected to the coated region, a first limiting member located between the electrode plate and the cutting mechanism in the thickness direction and provided with a cutting hole that allows laser light from the cutting mechanism to pass through and matches a cutting trajectory of the laser light, and a second limiting member located on a side of the electrode plate facing away from the first limiting member in the thickness direction and configured to cooperate with the first limiting member to limit the electrode plate in the thickness direction.