Edge formation in slot die coating of lithium-ion battery electrodes

In the manufacturing process of Li-Ion batteries the slot die coating of the electrodes is a crucial step, which is not fully understood yet. Especially the mechanisms creating super-elevations at the coating edges, which cause trouble in the downstream process steps, are not fully understood yet. Until now literature only delivers a model for super-elevations in hot melt extrusion coatings [1], which for some reasons is hardly comparable.