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:
Mar. 29, 2022
Lg Energy Solution, Ltd., Seoul, KR;
Gwangju Institute of Science and Technology, Gwangju, KR;
Dongin Choi, Daejeon, KR;
Hyeong Jin Kim, Gwangju, KR;
Wonhee Kim, Incheon, KR;
Seok Koo Kim, Daejeon, KR;
LG ENERGY SOLUTION, LTD., Seoul, KR;
GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY, Gwangju, KR;
Abstract
Methods and systems may reliably predict the lifespan characteristics of a lithium secondary battery, for example, the mode of variation in cycle capacity in advance. A method may include a first step of subjecting a lithium secondary battery in a form of a blocking cell to an impedance spectroscopic analysis, a second step of deriving a relationship capacitance for each frequency and a calculating a charge amount, a third step of repeatedly performing the first and second steps, and a fourth step of measuring a capacity for each cycle of the lithium secondary battery and deriving a prediction expression of the capacity for each cycle of the lithium secondary battery.