METHOD FOR PRODUCING SECONDARY BATTERY ELECTRODES

A method for producing secondary battery electrodes includes a step of preparing a moisture powder formed of aggregated particles that contain electrode active material particles, a binder resin, and solvent, wherein the solid phase, liquid phase, and gas phase in at least 50 number% of the aggregated particles form a pendular state or a funicular state; a step of forming, using the moisture powder, a coating film while the gas phase remains present; a step of forming a first groove that extends in a first direction, by transferring depressions and elevations, using a first roll die, into the coating film; and a step of forming a second groove that extends in a different direction, by transferring depressions and elevations, using a second roll die, into the coating film. Depression/elevation transfer is carried out in such a manner that the second groove is made deeper than the first groove.