APPARATUS AND METHOD FOR DIAGNOSING A BATTERY

An apparatus for diagnosing a battery according to an embodiment of the present disclosure includes a discharging unit electrically connected to a battery and configured to discharge the battery; an X-ray diffraction analyzing unit configured to output an X-ray toward a plurality of negative electrode tabs included in the battery and generate a graphite profile for each of the plurality of negative electrode tabs based on the output X-ray; and a control unit configured to determine a charge and discharge behavior of each of the plurality of negative electrode tabs based on the generated plurality of graphite profiles, and diagnose the state of the battery based on the determined plurality of charge and discharge behaviors.