System for the storage of electrical energy for a vehicle with electric propulsion

A system (1) for the storage of electrical energy for a vehicle with electric propulsion; the storage system (1) presents: at least one group (5) of chemical batteries (6), which are arranged aligned with one another and each of which presents an upper wall (7), which is provided with a pair of electrical terminals (11) and with a safety valve (12), and a lower wall (8), which is parallel and opposite to the upper wall (7); a container (2), which houses the group (5) of chemical batteries (6); a relief duct (13), which rests against the upper walls (7) of the chemical batteries (6) and presents, for each safety valve (12), a corresponding opening (14), which is coupled to the safety valve (12); and a cooling element (18), which is parallel and opposite to the relief duct (13) and rests against the lower walls (8) of the chemical batteries (6).