METHOD FOR EVALUATING ADHESION OF SEPARATOR

A method for evaluating an adhesive strength of a separator including manufacturing an electrode-separator composite including an electrode stacked on at least one surface of a separator, and the at least one surface of the separator and a surface of the electrode facing the at least one surface include adhesive surfaces and non-adhesive surfaces, and the adhesive surfaces and the non-adhesive surfaces are alternately disposed; moving the electrode-separator composite; cutting the electrode-separator composite in a direction parallel to the moving direction; attaching measuring rolls respectively to both surfaces of the cut electrode-separator composite; separating the electrode-separator composite by rotating each of the attached measuring rolls and spacing the measuring rolls apart from each other; and measuring a torque generated by the measuring rolls while separating the electrode-separator composite.