Abstract: The invention relates to an accumulator arrangement comprising a plurality of individual cells, each in the form of electrochemical accumulator cells and each having a prismatic-shaped housing, wherein the individual cells are arranged one behind the other in at least one row and disposed in a housing or a frame so as to be held together to form an accumulator block, characterized in that a) one, several or all of the individual cells are formed as an accumulator cell which changes thickness as a function of the respective state of charge, b) at least one elastically deformable compensating component is arranged at least at one end of the series arrangement of individual cells between the last individual cell and the housing or frame which is designed to accommodate and compensate for the changes in thickness of individual cells occurring as a result of changes in the state of charge and the thereby resulting changes in the length of the series arrangement.