Apparatus and Method for Making a Coil, Preferably for an Electrochemical Cell Intended for the Production of Batteries

An apparatus (100) for making a coil (B) for an electrochemical cell intended for the production of batteries, said apparatus (100) comprising:

• a feed unit (2) configured to feed at least one strip-shaped article (N), comprising one or more strips which include conductor strips (N1, N3) and separator strips (N2, N4) by displacing said strip-shaped article (N) along a feed direction (f);
• a winding unit (1) that includes:
• a plurality of winding heads (10);
• a movement device (3) for moving said winding heads (10) configured to displace said winding heads (10) along a working path (P);
• wherein each winding head (10) supports a gripping device (11) which is configured to grasp a portion of said strip-shaped article (N) and is configured to wind said strip-shaped article (N) so as to make said coil (B), said movement device (3) being further configured so as to displace a respective winding head (10), when it is grasping said portion of said strip-shaped article (N), along an operative segment (P1) of said working path (P) in a direction discordant with respect to said feed direction (f).