| 摘要 |
PROBLEM TO BE SOLVED: To provide a power storage device capable of preventing tips of a positive electrode terminal and a negative electrode terminal from being positionally displaced even if a plurality of power storage devices in a battery module are assembled while being mutually tilted in a width direction.SOLUTION: A secondary battery 10 comprises: a layered electrode assembly 20 in which a plurality of positive electrodes and a plurality of negative electrodes are alternately laminated while keeping an insulation state; and a battery case 11 in which the electrode assembly 20 is accommodated. When a direction connecting the tip of a positive electrode terminal 37 and a tip of a negative electrode terminal 38 is defined as the width direction, in the secondary battery, the positive electrode terminal 37 is provided at a position closer to a center of the electrode assembly 20 in the width direction than a positive electrode tab 24, and the negative electrode terminal 38 is provided at a position closer to the center of the electrode assembly 20 in the width direction than a negative electrode tab 28.SELECTED DRAWING: Figure 1 |
