This facility blocks contact between the cathode and the anode in the secondary battery, thereby strengthening heat resistance and strength to stabilize the battery. It is a coating facility that produces a separator through which lithium ions in the electrolyte can pass.

The coating method realizes double-sided simultaneous coating with nano coating, and can easily change the coating amount by replacing the bar and fine-adjust the coating amount by adjusting the rotation speed.

In addition, surface treatment technology such as corona is applied so that it can be coated uniformly for porous substrates.