APPARATUS AND METHOD FOR INSPECTING DISCONNECTION OF ELECTRODE TAB OF BATTERY CELL

An apparatus for inspecting disconnection of an electrode tab of a battery cell according to the present invention includes: a measurement part which measures impedance values and impedance angles according to the frequency of an inspection target battery cell; a calculation part which calculates real part resistance values of impedance according to the frequency of the inspection target battery cell from the impedance values and the impedance angles; and a determination part which determines whether an electrode tab of the battery cell is disconnected by comparing real part resistance values in a real part resistance value range in a resonance frequency range of good battery cells having the same type as the inspection target battery cell with the real part resistance values of the impedance of the inspection target battery cell in the same frequency range as the resonance frequency range.