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:
Nov. 23, 2021
Filed:
Feb. 12, 2018
Lg Chem, Ltd., Seoul, KR;
Wook Park, Daejeon, KR;
Jin Sam Koo, Daejeon, KR;
Kwang Soo Jeon, Daejeon, KR;
Dong Hyun Lee, Daejeon, KR;
Jong Hwa Lee, Daejeon, KR;
Hyun Il Park, Daejeon, KR;
Hyoen Gu Jeon, Daejeon, KR;
Yang Hyun Huh, Daejeon, KR;
Abstract
An apparatus for inspecting the welding for a secondary battery includes: a measuring unit measuring a power value (P) supplied to the welding apparatus and a taken time (S) when the electrode tab and the electrode lead are welded to each other to obtain measured welding data (Data); an instrument unit obtaining a waveform representing a relationship between the power value (P) and the taken time (S) by using the measured welding data obtained by the measuring unit to display the waveform on a graph; and an inspection unit comparing the measured welding waveform displayed on the graph with a normal welding waveform to inspect whether the defective welding occur in real-time.