4-Sided Notched Bar Film Applicator for Battery Electrode Coating

Product Description

The 4-sided notched bar film applicator is a precision coating tool designed for producing uniform thin films with multiple thickness options in a single device. Each side of the bar features a different gap size, allowing quick selection of coating thickness by simply rotating the applicator.

This design significantly improves efficiency in laboratory environments, enabling rapid comparison of coating conditions without changing tools.

Manufactured from high-quality stainless steel, the applicator provides excellent durability, corrosion resistance, and consistent coating performance. It is widely used in battery electrode fabrication, slurry coating, and material research applications.

The cylindrical bar structure ensures smooth coating on flat substrates such as copper foil, aluminum foil, and glass plates, making it suitable for lithium-ion, sodium-ion, and supercapacitor research.

Working Principle

The coating slurry is applied to the substrate surface, and the applicator is drawn across at a constant speed. The gap between the bar and the substrate determines the thickness of the wet film.

By rotating the applicator, different gap sizes are engaged, allowing multiple coating thicknesses to be tested with a single tool. This ensures efficient and reproducible film preparation.