Lg Energy Solution, Ltd.

Sang Su Ahn

Min Choon Park

Dong Hee Kim

An apparatus for detecting the location of a foreign material of a low-voltage battery cell includes a first and second measurement electrodes respectively on a positive electrode and a negative electrode of the battery cell to measure a leakage current; a current measuring device to measure a leakage current; and a data processor to process a measured leakage current data. The first and second measurement electrodes each have a structure in which a plurality of unit electrodes to which coordinate information is assigned are collected. The current measuring device measures a leakage current flowing through the unit electrode of the first measurement electrode and the unit electrode of the second measurement electrode that have the same coordinate information. The data processing part checks the location of a foreign material from a leakage current data through a coordinate information of a unit electrode having a large leakage current.

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Daejeon, South Korea

Sang Su Ahn