Apparatus and method for detecting defect in folded portion of casing of battery cell

Abstract

An apparatus for detecting a defect in a folded portion of a casing of a battery cell, the apparatus includes a magnetic field outputter configured to output a magnetic field to the folded portion of the casing of the battery cell, a property measuring instrument configured to measure a property of the folded portion according to the magnetic field, and a controller configured to generate defect information of the folded portion, based on a measurement result of the property measuring instrument.

Dependencies are inferred from the claim text.