In view of the problem that the current lithium battery pole piece extrusion coating has no mature system,a stable and reliable power lithium battery pole piece extrusion coating system is researched and developed.Based on the existing research results,a new extrusion die cavity design method is proposed,and a hanger-type extrusion die cavity is designed.Combined with the transfer coating system,the design of the feeding device,the head coating device,the unwinding/rewinding device and the drying device are...