Slot die coater for changing coating form of electrode active material slurry through movement of slots

A slot die coater for coating an electrode active material slurry on an electrode current collector, comprising:

• a lower die having a lower outlet and a lower slurry supply port;
• and
• an upper die disposed above the lower die and having an upper outlet and an upper slurry supply port,
• wherein the lower and upper slurry supply ports are for receiving a slurry into the lower and upper die, respectively,
• wherein an upper surface of the lower die and a lower surface of the upper die are at least partially in contact with each other and capable of sliding relative to one another such that the upper die and the lower die are capable of sliding relative to each other along a horizontal direction,
• wherein the upper surface of the lower die has a planar surface oriented along the horizontal direction and an inclined surface extending from the planar surface and inclined relative to the horizontal direction, and
• wherein the lower surface of the upper die has a shape corresponding to that of the upper surface of the lower die.