ELECTRICAL ENERGY STORAGE DEVICE FOR A MOTOR VEHICLE AND RELATIVE ASSEMBLY METHOD

A device (1) for the storage of electrical energy for a motor vehicle (100) comprising a casing (2) defining an inner volume (3) and electrochemical cells (4) housed in the inner volume (3) and brought together along a direction (X). The device (1) comprises a foam element of a first type (5a) interposed between a first pair of electrochemical cells (4) along the direction (X) and a foam element of a second type (5b) interposed between a second pair of electrochemical cells (4) along the direction (X).