Electrode plate manufacturing apparatus, manufacturing method of positive plate, and manufacturing method of negative plate

Abstract

An electrode plate manufacturing apparatus includes: a first roll; a second roll that consolidates a particle aggregate and forms an undried active material film; and a third roll that transcribes the undried active material film on the second roll onto a current collector foil. A circumferential velocity A of the first roll, a circumferential velocity B of the second roll, a conveyance velocity C of the current collector foil, a contact angle α of the first roll, a contact angle β of the second roll, and a contact angle γ of the current collector foil satisfy conditions (i) β−α≥−1.6×B/A+40 where β−α>0 and B/A≥1 and (ii) γ−β≥−1.6×C/B+40 where γ−β>0 and C/B≥1.