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:
Sep. 30, 2025
Filed:
Aug. 30, 2022
Lg Energy Solution, Ltd., Seoul, KR;
In Hwan Cho, Daejeon, KR;
Sang Dae Park, Daejeon, KR;
Ju Mi Lee, Daejeon, KR;
Ju Young Kim, Daejeon, KR;
LG ENERGY SOLUTION, LTD., Seoul, KR;
Abstract
An apparatus is provided for detecting an internal defect of a battery cell. The apparatus may include a time domain reflectometry (TDR) module configured to apply an electrical pulse to the battery cell and compare a reference waveform with a measurement waveform generated by detecting a reflected wave of the electrical pulse to determine whether a defect has occurred, and a signal line configured to electrically connect the TDR module to an electrode lead of the battery cell. The electrical pulse may be applied in a longitudinal direction of the battery cell. A method of detecting an internal defect of a battery cell is also provided.