INSPECTION DEVICE AND MANUFACTURING METHOD OF FILM-TYPE BATTERY

An inspection device of a film-type battery is provided which can detect a poorly sealed site of a heat seal part. The present disclosure provides an inspection device of a film-type battery including an electrode body, and a film exterior body for accommodating the electrode body in the inside thereof, and having a heat seal part at the periphery thereof. The inspection device includes a temperature measuring device for measuring the temperature distribution of the heat seal part, and a first determination part for controlling the temperature measuring device in a prescribed time after forming the heat seal part at the film exterior body, and determining the presence or absence of a poorly sealed site based on the temperature distribution measured.