INSPECTION METHOD, METHOD OF MANUFACTURING SECONDARY BATTERY LAMINATE, AND METHOD OF MANUFACTURING SECONDARY BATTERY

The present disclosure is directed to a new technique that can sufficiently suppress bonding defects by identifying application defect sites with a high accuracy when manufacturing a secondary battery laminate including battery members which are bonded together via an adhesive material. An inspection method of the present disclosure is an inspection method used upon forming a dry material on at least one bonding surface of an electrode and a separator, through the steps of applying a coating material on the bonding surface and forming the adhesive material by drying the coating material. In this inspection method, prior to the step of forming the adhesive material, the displacement of the bonding surface to which the coating material has been applied is measured by a laser displacement gauge to identify an application defect site.