Battery pack for an electric-powered road vehicle and electric-powered road vehicle equipped with such a battery pack

Battery pack for an electric-powered road vehicle (1), wherein the battery pack (3) comprises:

• a plurality of planar electrochemical cells (C) arranged in a pack pattern side by side;
• wherein each cell (C) comprises terminal poles (TT′, TT″) at a first edge;
• a support (37) facing the terminal poles (TT′, TT″) of the cells (C);
• a plurality of elastically deformable spring-conducting elements (39) having first ends coupled to the support (37), wherein the spring-conducting elements (39) are arranged in rows so that when the battery pack (3) is in use each row of the spring-conducting elements (39) is pressed against the terminal poles (TT′, TT″) of a corresponding cell (C) to make a conductive bridge between each cell (C) and the support (37);
• wherein the terminal poles (TT′, TT″) of each cell (C) are connected to one another by a longitudinal welding line (41) parallel to the first edge of the corresponding cell (C);
• characterized by the fact that:
• for each cell (C) a conductive plane (43) is provided between the terminal poles (TT′, TT″) and the corresponding row of spring-conducting elements (39);
• wherein each conductive plane (43) is constrained to the corresponding terminal poles (TT′, TT″) by means of points or transverse welding lines (44) at the space provided between two adjacent spring-conducting elements (39) of the same row so that when the battery is in use the spring-conducting elements (39) are pressed against portions of the conductive planes (43) unprovided with welding points or lines.