Battery cell connection structure

A battery cell connection structure configured to connect, in a state where a plurality of battery cells having a rectangular shape are stacked in a thickness direction thereof, adjacent battery cells of the plurality of battery cells in series,

• wherein
• each of the plurality of battery cells includes a positive electrode tab and a negative electrode tab provided on a first side of a plurality of sides thereof,
• the plurality of battery cells are stacked with the first sides being oriented in a same direction,
• a first electrode tab, which is one of the positive electrode tab and the negative electrode tab, includes a first inclined portion that inclines with respect to a stacking direction of the plurality of battery cells and a direction connecting the first sides and second sides opposite the first sides,
• a second electrode tab, which is another one of the positive electrode tab and the negative electrode tab, includes an extension portion that extends toward the first electrode tab of an adjacent battery cell, and a second inclined portion that extends along the first inclined portion of the first electrode tab of the adjacent battery cell from the extension portion,
• battery cells adjacent to each other in a state where the first inclined portion of the first electrode tab and the second inclined portion of the second electrode tab are overlapped and form a pair are connected in series, and
• in the stacking direction of the plurality of battery cells, the first inclined portions and the second inclined portions of a plurality of the pairs are arranged at a regular interval.