POWER STORAGE DEVICE AND METHOD OF MANUFACTURING SAME

The present method of manufacturing a power storage device includes: producing an electrode assembly having a first tab and a second tab; after the producing the electrode assembly, disposing the first tab and the second tab in a tab accommodation space through an open region in a state in which a second coupling wall is not disposed in the open region; after the disposing the first tab and the second tab, disposing the second coupling wall in the open region; and after the disposing the second coupling wall, curving the first tab and the second tab in a state in which the surrounding wall faces a main outer surface of the first tab and the second coupling wall faces a main outer surface of the second tab.