Title:
WELDING INSPECTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/080756
Kind Code:
A1
Abstract:
The present invention relates to a welding inspection device and a welding inspection method for a tabless cylindrical battery cell including a jelly roll type electrode assembly, wherein a current-collecting plate welded to an uncoated part of an electrode assembly is welded to a fixed electrode terminal from the inner side of a hollow part of an electrode assembly so that the current-collecting plate extends again through a closed surface provided at one end of a cylindrical battery can in which the electrode assembly is accommodated, and then the welding inspection device can inspect the welding state. The battery can is fixed by a jig, and the welding inspection device is a vision camera inspection device provided with an endoscope part or a telephoto lens, and can inspect whether there is a defect due to weak welding, over-welding, or welding spatter, by photographing the welded region and the inner surface of the hollow part in a state of being inserted or not inserted through an opening part provided through the other side end of the battery can. In addition, the present invention can be applied to a sample on a linear track.
Inventors:
SHIM KYUHUN (KR)
LEE GILYOUNG (KR)
LEE JUNOH (KR)
LEE GILYOUNG (KR)
LEE JUNOH (KR)
Application Number:
PCT/KR2022/017417
Publication Date:
May 11, 2023
Filing Date:
November 08, 2022
Export Citation:
Assignee:
LG ENERGY SOLUTION LTD (KR)
International Classes:
G01N21/88; B23K31/12; G01N21/954; H01M10/04; H01M50/531; H01M50/567
Foreign References:
| KR0165606B1 | 1999-01-15 | |||
| KR101012654B1 | 2011-02-09 | |||
| KR20190013014A | 2019-02-11 | |||
| KR101287464B1 | 2013-07-23 | |||
| JP2011133288A | 2011-07-07 |
Attorney, Agent or Firm:
DAE-A INTELLECTUAL PROPERTY CONSULTING (KR)
Download PDF:
Previous Patent: METHOD FOR PREPARING STEM CELL-DERIVED CARDIOMYOPATHY MODEL CELL LINE BY USING CRISPR-BASED BASE EDI...
Next Patent: MOTOR
Next Patent: MOTOR