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:
Dec. 16, 2025
Filed:
Dec. 05, 2023
Lg Energy Solution, Ltd., Seoul, KR;
Jin-Hyung Lim, Daejeon, KR;
Young-Jin Kim, Daejeon, KR;
Gi-Min Nam, Daejeon, KR;
Hyoung Jun Ahn, Daejeon, KR;
Kyu-Chul Lee, Daejeon, KR;
Won-Tae Joe, Daejeon, KR;
LG ENERGY SOLUTION, LTD., Seoul, KR;
Abstract
Disclosed is an apparatus and method for controlling step charging of a secondary battery. A charging control unit determines a SOC, an OCV and a polarization voltage of the secondary battery, determines an OCV deviation corresponding to a difference between the OCV and a predefined minimum OCV value, determines a correction factor corresponding to the polarization voltage and the OCV deviation, determines a look-up SOC by correcting the SOC according to the correction factor, determines the magnitude of a charging current corresponding to the look-up SOC, and provides the determined charging current to a charging device.