Electrode for rechargeable battery, manufacturing apparatus thereof and manufacturing method thereof

A method for manufacturing an electrode for a secondary battery, the method comprising:

• ejecting, by an ejector, a first slurry and a second slurry at a variable ejection ratio that varies in response to control signals from a controller;
• coating, by a coater, the first slurry and the second slurry ejected at the variable ejection ratio onto a current collector in a longitudinal direction of the current collector;
• and
• drying, by a dryer, the first slurry and the second slurry coated onto the current collector
• wherein in the ejecting of the first slurry and the second slurry, the variable ejection ratio of the first slurry to the second slurry over time or over a coating length varies in a wave-like manner in response to the control signals from the controller.