Method of producing electrode and electrode production apparatus

A method of producing an electrode for a lithium-ion battery, the method comprising:

• (a) making an aerosol including an active material, a binder and a gas;
• (b) forming a film flow of the aerosol;
• (c) forming an electrically-charged region by corona discharge;
• (d) allowing the film flow to pass through the electrically-charged region;
• (e) introducing the film flow into an electric field after passing through the electrically-charged region, and
• (f) applying at least one of heat and pressure to the active material layer to fix the active material layer to a substrate;
• wherein, in the electric field, an active material layer is formed by adhering a solid component of the film flow onto a surface of the substrate by electrostatic force;
• the film flow has a flow direction and a width direction;
• the width direction is orthogonal to the flow direction;
• the corona discharge occurs from a corona discharge electrode;
• the corona discharge electrode extends in a form of a line along the width direction;
• and
• in the width direction, the corona discharge electrode has a width larger than a width of the film flow;
• wherein each of the flow direction and the width direction is orthogonal to a vertical direction,
• the corona discharge electrode is disposed vertically below the film flow, and the substrate is disposed vertically above the film flow.