Patent ID: 8132527
Filing Date: 2012-03-13
Classification: B05C,H01M,Y02E

Abstract:
1. An apparatus for applying an electrode mixture paste, comprising: an uncoiler unit for unwinding a core material from a coil thereof; a coating unit where the core material is immersed in an electrode mixture paste to coat the core material with the paste on both sides; a coating thickness/width adjusting unit for adjusting a coating thickness and a coating width of the electrode mixture paste; a drying unit for drying the electrode mixture paste; and a coiler unit for taking up the core material into a coil on which the electrode mixture paste has been applied and dried, wherein the coating thickness/width adjusting unit includes a pair of scraper tools for adjusting a coating thickness as the core material coated with the electrode mixture paste passes through a gap between the scraper tools, with tips provided to the scraper tools for scraping off the electrode mixture paste to define one end of a coating width, and recesses provided on an upstream side of the tips in a running direction of the core material, and wherein the recesses open towards the coating unit, and return at least part of the electrode mixture paste towards the coating unit, and side edges of the recess protrude past side edges of the tip by p, p being in a range of from −0.1 w to 0.5 w, where w is a width of the tip.