This cylindrically shaped battery is configured by housing within a cylindrically shaped battery case an electrode group smaller than the battery case, and the configurations of the battery case and the electrode group are effectively utilized to ensure the contact between one electrode of the electrode group and the battery case. A cylindrically shaped battery is provided with a cylindrically shaped battery case (2) and an electrode group (3) which includes a positive electrode (31), a negative electrode (32), and a separator (33). Vertically penetrating spaces are formed between the electrode group (3) and the inner peripheral surface of the battery case (2). The current collector terminal (321) of the negative electrode (32) is extended in the direction in which the current collector terminal (321) is separated from the center axis of the battery case (2) relative to the battery group (3), and the current collector terminal (321) is in contact with the bottom surface (2B) of the battery case (2).