A prismatic battery including multiple individual cells, at least two of
which are combined to form a prismatic module. At least two of the
modules, in turn, are stacked to form the battery and joined together
under tension between two end plates. The prismatic battery also has at
least one cooling member which is in heat-conducting contact with at
least one of the modules. This cooling member has at least one cooling
fin which is provided parallel to the direction of the tensioning force.