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:
Mar. 26, 2024
Filed:
Oct. 04, 2019
Applicant:
Lg Chem, Ltd., Seoul, KR;
Inventors:
Yong Tae Lee, Daejeon, KR;
Myung Hoon Ko, Daejeon, KR;
Jee Ho Kim, Daejeon, KR;
Gyung Soo Kang, Daejeon, KR;
Assignee:
LG ENERGY SOLUTION, LTD., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/3842 (2019.01); G01R 31/385 (2019.01); H01M 10/44 (2006.01); H01M 10/48 (2006.01); H02J 7/00 (2006.01);
U.S. Cl.
CPC ...
G01R 31/3842 (2019.01); G01R 31/3865 (2019.01); H01M 10/44 (2013.01); H01M 10/48 (2013.01); H02J 7/0047 (2013.01);
Abstract
The present invention relates to a method and an apparatus for diagnosing low voltage of a secondary battery cell. The method for diagnosing low voltage of a secondary battery cell according to an embodiment of the present invention includes pre-aging a battery cell, charging the battery cell according to a preset charging condition, measuring a parameter for determining low voltage failure of the battery cell, comparing the measured parameter with a reference parameter, and performing formation when the battery cell is determined to be normal.