A collector that electrically connects tabs derived from electrode bodies and terminals of a battery to each other includes a first connection portion to which the conductive member on a tab side is connected, a second connection portion to which the conductive member on a terminal side is connected. The first connection portion and the second connection portion are connected by a connecting portion. The collector opposes the sealing plate with the insulating member in between, the second connection portion includes a fuse portion including a through hole between the conductive member connection portion on the terminal side and the connecting portion, and the fuse portion is disposed so as not to come in contact with the insulating member.