DISCONNECTION TESTING APPARATUS FOR ELECTRODE TAB OF BATTERY CELL

An electrode tab disconnection inspection apparatus of a battery cell according to the present technology includes: a measurement part configured to measure impedance values and impedance angles according to a frequency of a battery cell to be inspected; an arithmetic part configured to calculate real part resistance values of impedance according to the frequency of the battery cell to be inspected from the impedance values and the impedance angles; and a determination part configured to compare real part resistance values of a real part resistance value region in a resonant frequency range of non-defective battery cells of the same type as the battery cell to be inspected and real part resistance values of impedance of the battery cell to be inspected in a frequency range having the same range as the resonant frequency range to inspect whether electrode tabs of the battery cell to be inspected are disconnected.