CAPACITOR AND CAPACITOR MANUFACTURING METHOD

摘要

The shape of a capacitor element is stabilized. This capacitor is provided with: a capacitor element (2) which comprises a winding of a positive electrode body (22) and a negative electrode body (24) laminated together with the interposition of a separator (26), and which is formed in a flat shape having curved portions (6) and a flat portion (4); a positive electrode portion (8) formed on one end face of the capacitor element by being led out from the positive electrode body; a negative electrode portion (10) formed on the same end face as the positive electrode portion by being led out from the negative electrode body with an insulating gap (12) from the positive electrode portion; and positive electrode-side and negative electrode-side current collector plates (18, 19) which are disposed on the flat portion sides of the positive electrode portion and the negative electrode portion, and which are connected to the laminated positive electrode body and negative electrode body by welding in an intersecting direction with respect thereto.