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. 20, 2025
Filed:
Jun. 16, 2021
Lg Energy Solution, Ltd., Seoul, KR;
Sang Ho Bae, Daejeon, KR;
Hun Bum Jung, Daejeon, KR;
Ji Hun Hwang, Daejeon, KR;
Cha Hun Ku, Daejeon, KR;
Su Taek Jung, Daejeon, KR;
Chang Min Han, Daejeon, KR;
Joo Young Chung, Daejeon, KR;
Yong Jun Lee, Daejeon, KR;
Jae Hwa Choi, Daejeon, KR;
Young Seok Baek, Daejeon, KR;
Jin Yong Lee, Daejeon, KR;
LG ENERGY SOLUTION, LTD., Seoul, KR;
Abstract
The present technology relates to a method of inspecting a welding defect. The method includes: manufacturing an electrode assembly sample by welding an electrode lead on an electrode tab formed on an electrode assembly; measuring a tensile strength, a torsional strength and a peeling strength of a welded portion between the electrode tab and the electrode lead for the electrode assembly sample; deriving correlation between whether there is a welding defect and each of the tensile strength, the torsional strength, and the peeling strength; and deriving a reference value for determining whether there is a welding defect for the tensile strength, the torsional strength, and the peeling strength, respectively.