BATTERY DIAGNOSIS METHOD AND BATTERY DIAGNOSIS APPARATUS

A battery diagnosis method includes: obtaining diagnosis target information including a target full-cell profile of a battery cell associated with a first electric stimulation; correcting the target full-cell profile to be associated with a second electric stimulation that is different from the first electric stimulation, based on a predetermined overpotential profile; applying a diagnosis logic to a corrected target full-cell profile to determine first diagnosis result information, which is a preliminary diagnosis result for a charge/discharge performance of the battery cell; and determining second diagnosis result information, which is a precise diagnosis result for the charge/discharge performance of the battery cell, based on at least one preliminary diagnosis factor included in the first diagnosis result information, using a factor correction model.