Method and apparatus for detecting damage of battery separator

Abstract

Disclosed is a separator damage detecting apparatus. The separator damage detecting apparatus detects a separator damage of a secondary battery by applying a voltage while pressing an electrode assembly having a structure in which a positive electrode plate, a separator and a negative electrode plate are stacked, to induce a temporary short circuit of a positive electrode plate and a negative electrode plate. The separator damage detecting apparatus includes a short circuit measuring unit configured to apply a voltage to the electrode assembly and detect a leakage current; and a pressing jig configured to roll-press at least one surface of the electrode assembly or consecutively press predetermined regions of the at least one surface of the electrode assembly.

Dependencies are inferred from the claim text.