A sealed battery including an electrode assembly 11 having multiple positive electrode substrates exposed at one end and negative electrode substrates exposed at the other end; and collectors 18 and collector receiving parts 19 that are resistance-welded on both sides of the multiple positive or the multiple negative electrode substrates or both, a through-hole 30 being formed in at least one of the collectors 18 and the collector receiving parts 19, and the resistance welding being performed at the rim of the through-hole 30. With such sealed battery, the spattered particles 26 generated during the resistance welding are captured in the through-hole 30, and will rarely enter the interior of the electrode assembly 11 or splash out to the exterior.