Manufacturing device for battery electrode plate

Provided is a manufacturing device for a battery electrode plate that forms a battery having high volumetric efficiency. Specifically, this manufacturing device sets a coating pressure of a slurry 3 from a die 10, during coating, to be constant, and has a position adjustment unit 19 for adjusting a gap between the die 10 and a substrate 2 through adjusting the position of the die 10. The position adjustment unit 19 adjusts the position of the die 10 such that a first gap which is a gap between the substrate 2 and the die 10 at the time of forming a starting end part 31 of a coating film in the formation of each coating film, and a third gap which is a gap between the substrate 2 and the die 10 at the time of forming a terminal end part 33 of the coating film, become larger than a second gap which is a gap between the substrate 2 and the die 10 at the time of forming a section between the starting end part 31 and the terminal end part 33 of the coating film, thereby causing the four corners of the coating film