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. 12, 2026
Filed:
Jul. 27, 2021
Applicant:
Lg Energy Solution, Ltd., Seoul, KR;
Inventors:
Ji Hye Park, Daejeon, KR;
Wontae Joe, Daejeon, KR;
Assignee:
LG ENERGY SOLUTION, LTD., Seoul, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 31/389 (2019.01); G01R 31/3842 (2019.01); G01R 31/388 (2019.01);
U.S. Cl.
CPC ...
G01R 31/389 (2019.01); G01R 31/3842 (2019.01); G01R 31/388 (2019.01);
Abstract
Discussed are a device, a system and a method for estimating a performance of a rechargeable battery. The device can include a current sensor to measure a discharge current output from a rechargeable battery during a discharge period in which the rechargeable battery is discharged from a predetermined reference voltage with a constant voltage, and a control circuit to calculate a resistance change relationship depending on a State of Charge (SOC) change during the discharge period based on the predetermined reference voltage and a change of the discharge current depending on time passage.