ASSEMBLED BATTERY

A technology is provided which suppresses the deterioration of the joint part between the electrode terminal and the bus bar due to an external load. An assembled battery herein disclosed includes a plurality of single cells, and a bus bar. The plurality of single cells each include an electrode body, a battery case, and an electrode terminal. The electrode terminal in at least one single cell among the plurality of single cells includes a first member having one end arranged outside the battery case, and the other end arranged inside the battery case, and a second member arranged at the outer surface of the battery case, and mounted at the end of the first member. Herein, a flexible part protruding toward the bus bar is formed at the surface of the second member, and the electrode terminal is joined with the bus bar at the flexible part.