The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 05, 2026
Filed:
Nov. 08, 2022
Lg Energy Solution, Ltd., Seoul, KR;
LG ENERGY SOLUTION, LTD., Seoul, KR;
Abstract
A welding inspection apparatus and a welding inspection method in which in a tab-less cylindrical battery cell having a jelly roll-type electrode assembly, a current collection plate welded to an uncoated part of the electrode assembly is welded to an electrode terminal that is fixed in a way that penetrates a closed surface provided in one end portion of a cylindrical battery can which accommodates the electrode assembly, from the inside of a hollow hole part of the electrode assembly, to see a welding state. The battery can is fixed by a jig, and the welding inspection apparatus, as a vision camera inspection apparatus with an endoscope part or a telephoto lens, photographs a welding portion and the inner surface of the hollow hole part, to see failure caused by weak welding, over welding or weld spatter.