Metodo per formare celle elettrochimiche di batterie elettriche

A method for forming electrochemical cells of electrical batteries comprises preparing a coil (11) comprising a winding of a first separator sheet (11a), a coil (12) comprising a winding of a first electrode sheet (12a), a coil (13) comprising a winding of a second separator sheet (13a) and a coil (14) comprising a winding of a second electrode sheet (14a); feeding said sheets (11a, 12a, 13a, 14a) towards a conveyor (20) by unwinding them from their respective coils (11, 12, 13, 14); forming on the conveyor (20) a plurality of multi-layer strips (35) each one comprising a first layer (35a) of said first separator sheet (11a), a second layer (35b) of said first electrode sheet (12a) overlapped to said first layer (35a), a third layer (35c) of said second separator sheet (13a) overlapped to said second layer (35b) and a fourth layer (35d) of said second electrode sheet (14a) overlapped to said third layer (35c), said conveyor (20) being movable along a feeding direction (D); feeding each multi-layer strip (35) to a respective winding device (50) by said conveyor (20); winding each multi-layer strip (35) onto the respective winding device (50).