LAYER-ON-LAYER COATING DEVICE AND DOUBLE-SIDED COATING DEVICE, METHOD FOR PRODUCING ELECTRODE PLATES, AND METHOD FOR PRODUCING BATTERIES

The layer-on-layer coating device of an embodiment of the invention that conveys band-shaped substrates in the longitudinal direction thereof and coats two kinds of coating materials successively on the substrate comprises: a first coating unit that coats a first coating material on one surface of the substrate; a second coating unit that coats, without drying the first coated material in a drying furnace, a second coating material by a contactless method on the first coating material coated on the one surface by the first coating unit; and a feed roller that is disposed on the downstream side, in the direction of substrate conveyance, of the second coating unit and is driven by a driving source. It is thereby possible to apply a stable tension on the substrate while stably coating two layers of coating materials layer-on-layer using respective coating units and to produce electrode plates and batteries of stable properties.