A battery system includes a housing and a plurality of battery cells accommodated in the housing, with each of the battery cells including cell terminals. The cell terminals of neighboring battery cells are electrically interconnected via electrical connec...

An electricity storage module (10) is provided with a stack (30) formed by stacking a plurality of electricity storage elements (32) having positive and negative lead terminals (34, 34) that protrude outward from end portions (33). Differently polarized le...