A battery comprising: a laminate that includes a plurality of first electrodes, a plurality of second electrodes which have polarities different from the plurality of first electrodes and are alternately arranged with the plurality of first electrodes, and a plurality of separators that respectively separate the first electrodes and the second electrodes from each other; and a plurality of first tabs that respectively protrude from the plurality of first electrodes and are bundled together, wherein the plurality of first electrodes includes a primary first-electrode, a secondary first-electrode, and a tertiary first-electrode, the primary first-electrode is located between the secondary first-electrode and the tertiary first-electrode, the first tab for the primary first-electrode, the first tab for the secondary first-electrode, and the first tab for the tertiary first-electrode are connected to each other at a first position of an equal distance from the secondary first-electrode and the tertiary first-electrode, the plurality of second electrodes includes a primary second-electrode adjacent to the primary first-electrode, the plurality of separators includes a first separator that separates the primary first-electrode and the primary second-electrode from each other, in a case where the laminate does not swell in a thickness direction of the laminate, the laminate is configured to have a thickness T 0 from the secondary first-electrode to the tertiary first-electrode, the first position is spaced from an end portion of the first separator on the first position side by a distance L 0 in a direction perpendicular to the thickness direction of the laminate, the end portion of the first separator on the first position side protrudes toward the first position from an end portion of the primary second-electrode on the first position side, by a distance G in the direction perpendicular to the thickness direction of the laminate, and the laminate is configured that, even if the laminate swells in the thickness direction of the laminate, a thickness of the laminate from the secondary first-electrode to the tertiary first-electrode is smaller than 2×{(T 0 /2) 2 +L 0 2 -(L 0 -G) 2} 1/2. a laminate that includes a plurality of first electrodes, a plurality of second electrodes which have polarities different from the plurality of first electrodes and are alternately arranged with the plurality of first electrodes, and a plurality of separators that respectively separate the first electrodes and the second electrodes from each other; and a plurality of first tabs that respectively protrude from the plurality of first electrodes and are bundled together, wherein the plurality of first electrodes includes a primary first-electrode, a secondary first-electrode, and a tertiary first-electrode, the primary first-electrode is located between the secondary first-electrode and the tertiary first-electrode, the first tab for the primary first-electrode, the first tab for the secondary first-electrode, and the first tab for the tertiary first-electrode are connected to each other at a first position of an equal distance from the secondary first-electrode and the tertiary first-electrode, the plurality of second electrodes includes a primary second-electrode adjacent to the primary first-electrode, the plurality of separators includes a first separator that separates the primary first-electrode and the primary second-electrode from each other, in a case where the laminate does not swell in a thickness direction of the laminate, the laminate is configured to have a thickness T 0 from the secondary first-electrode to the tertiary first-electrode, the first position is spaced from an end portion of the first separator on the first position side by a distance L 0 in a direction perpendicular to the thickness direction of the laminate, the end portion of the first separator on the first position side protrudes toward the first position from an end portion of the primary second-electrode on the first position side, by a distance G in the direction perpendicular to the thickness direction of the laminate, and the laminate is configured that, even if the laminate swells in the thickness direction of the laminate, a thickness of the laminate from the secondary first-electrode to the tertiary first-electrode is smaller than 2×{(T 0 /2) 2 +L 0 2 -(L 0 -G) 2} 1/2.