公开(公告)号：US20230223506A1

公开(公告)日：2023-07-13

申请号：US18184010

申请日：2023-03-15

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Shaojun QIU ,  Nengwu LIAO ,  Chao GUO ,  Tiefeng WU

IPC: H01M4/04 ,  H01M50/533 ,  B08B5/04 ,  B23K26/16 ,  B23K26/38

CPC classification number: H01M4/04 ,  H01M50/533 ,  B08B5/04 ,  B23K26/16 ,  B23K26/38

Abstract: Disclosed is method and device for forming an electrode plate. The method includes: performing tab cutting on a substrate so that the substrate forms a body portion, an edge portion connecting to the body portion, and a plurality of tabs that connect to the body portion but are separated from the edge portion; and performing edge portion cutting on the substrate to separate the edge portion from the body portion. The electrode plate is formed in two steps. First, the tab and the edge portion are separated, so that in the process of cutting, impact of vibration of the edge portion on the tab is small, greatly reducing the risk of deformation of the tab caused by vibration of the edge portion and damage to the tab caused by being pulled by the edge portion. Second, edge portion cutting separates the edge portion from the body portion.

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.