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:
Jul. 08, 2025
Filed:
Apr. 01, 2021
Lg Energy Solution, Ltd., Seoul, KR;
Hyun Sup Lee, Daejeon, KR;
Hyun Jin Yang, Daejeon, KR;
Kyun Il Rah, Daejeon, KR;
Kyoung Ho Kim, Daejeon, KR;
Myung Han Lee, Daejeon, KR;
Kyung Mee Lee, Daejeon, KR;
Won Seok Cho, Daejeon, KR;
LG ENERGY SOLUTION, LTD., Seoul, KR;
Abstract
Provided is a method of evaluating electrode quality capable of simply and quickly filtering out defective electrodes by measuring a color coordinate value of electrodes before roll-pressing, which specifically includes: providing an electrode which includes a current collector and an active material layer formed on the current collector and has not been roll-pressed; measuring a color coordinate value of the active material layer using an optical instrument; and evaluating the electrode as a good product when the measured color coordinate value satisfies a predetermined electrode quality evaluation criterion and as defective when the measured color coordinate value does not satisfy the predetermined electrode quality evaluation criterion.