In the last years, thanks to the growing concern for the environmental conditions, new emerging technologies have been directed towards a “greener” concept, in optic of a future complete sustainability in the way humans conduct their lives within the world. In the well-known field of the automotive mobility, the role of the so far used internal combustion engine is becoming outdated because of the new applications which involve a full rather than partial electric propulsion powertrain. At the basis of the functioning of these new generation of systems, in both electric and hybrid electric vehicles, one ends up finding the energetic storage to take place in the electrochemical cells, i.e.