Electrical energy storage

Electrical energy storage, in particular for a motor vehicle, comprising a plurality of flat cells (1), each of the flat cells (1) a first flat side (1a) and a thereto substantially parallel second flat side (1b), wherein the plurality of the flat cells (1) under substantially parallel arrangement of the flat sides (1a, 1b) is arranged stacked one above the other, wherein at least one cooling plate (2) between two adjacent flat cells (1) of the stack is arranged, wherein the cooling plate (2) a plurality of with includes air through-flow channels (5) for dissipating heat.