Patent ID: 8302559

Claim:
An application device for applying a slurry comprising an inorganic oxide filler and a binder to a surface of an electrode plate sheet having electrode material mixtures and lead-forming parts alternately formed thereon, comprising: a pair of guide rolls including a first guide roll and a second guide roll for supporting and continuously transporting said electrode plate sheet horizontally; a gravure roll disposed so as to face said electrode plate sheet being continuously transported and having an outer surface with a gravure pattern engraved thereon, at least a part of said outer surface comprising a ceramic layer comprising aluminum oxide or chromium oxide; a slurry vessel for supplying said slurry onto said outer surface of said gravure roll; a blade comprising polystyrene, polyethylene, or polypropylene disposed so as to abut on said outer surface of said gravure roll, for scraping off a part of said slurry supplied onto said outer surface, thereby to adjust an amount of said slurry to be applied on said electrode plate sheet; and a controller configured to monitor positions on the surface of said electrode plate sheet and control movement of at least one of said pair of guide rolls and said gravure roll upward or downward so that said slurry is applied only on surfaces of said electrode material mixtures on said electrode plate sheet being continuously transported, and said slurry is not applied on surfaces of said lead-forming parts.