POWER STORAGE SYSTEM FOR A VEHICLE PROVIDED WITH AT LEAST ONE ELECTRIC MOTOR

A power storage system for a vehicle provided with at least one electric motor. The power storage system has: a container provided with a lower wall; and a plurality of modules, which are housed inside the container and directly rest on the lower wall. Each module has a group of electrochemical cells and two containing walls which are perpendicular to the lower wall of the container and are arranged parallel to one another on opposite sides of the pack of electrochemical cells so as to clamp the pack of electrochemical cells between them. Each containing wall has at least one tubular connection body and a plurality of locking elements are provided, which are fixed to the lower wall, project perpendicularly from the lower wall, and engage the connection bodies.