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:
Jan. 27, 2026
Filed:
Oct. 27, 2023
Samsung Sdi Co., Ltd., Yongin-si, KR;
Yongchan Kim, Yongin-si, KR;
Jaeyoung Lee, Yongin-si, KR;
Jeongwon Oh, Yongin-si, KR;
Hyewon Kim, Yongin-si, KR;
Wonsuk Lee, Yongin-si, KR;
Sebastian Szever, Yongin-si, KR;
SAMSUNG SDI CO., LTD., Yongin-si, KR;
Abstract
A battery diagnosis method, a battery diagnosis device and a battery pack performing the same. The battery diagnosis device may include a detection device that detects a cell voltage of a battery cell and a diagnosis device. The diagnosis device calculates a rate of voltage decrease over time of the cell voltage if a negligence test of the battery cell is initiated, and detects an inflection point at which the rate of voltage decrease changes from a decreasing trend to an increasing trend. The diagnosis device diagnoses the battery cell as an abnormal battery cell if the inflection point is detected.