BATTERY AND METHOD OF MANUFACTURING SAME

A terminal member includes a swaging-joined portion. An inner peripheral wall of the connection hole of the conductive member includes: a first region along an insertion direction of the terminal member; a tapered region located on the electrode assembly side with respect to the first region, the tapered region being a region in which a diameter of the connection hole is increased in a direction away from the first region; and a second region located between the first region and the tapered region. An intersection angle (θ) of the second region with respect to the first region is larger than an intersection angle (θ) of the tapered region with respect to the first region. A width of the second region along a radial direction of the connection hole is smaller than a width of the tapered region along the radial direction of the connection hole.