Dust Control for Lithium-ion Battery Calendering

Calendering

During calendering, electrodes with positive and negative material are compressed with rollers to tighten the coating and improve energy density. However, controlling dust from the negative electrode coating paste is important.

Solutions

During the calendering process, fine powders adhere to the roller will be removed with a scraper.

To effectively collect the dust that is scraped off, a suction cover is used.

Before and after calendering, it's essential to clean the fine powders adhere to the surface of the pole piece material. 

This is typically done using a roller brush and a suction cover. 

A suction hood is positioned beneath the cutter to effectively capture dust during cutting.