Patent Number: 6,168,661

Title: Battery cell coating apparatus and method

Abstract: The invention relates to a method and apparatus for coating both sides of a thin metal strip with electrochemically active material by the use of coating rod mechanism acting on a single side of the metal strip. The method is preferably carried out by applying the coating to one face of the strip drawn from the supply roll, changing the orientation of the strip, coating the opposite side of the strip and drying the coated sides. The dried and coated strip may be wound up on a take up reel. In the preferred embodiment, the strip from the feed roll first passes a web guide which reverses the direction of travel of the strip before the first side is coated. The strip then passes around a second web guide which again reverses the strip direction of travel before the second side of the strip is coated and the coated strip is dried.

Inventors: Dinkelman; John P. (South Milwaukee, WI)

Assignee: Johnson Controls Technology Company

International Classification: B05D 1/28 (20060101); B05D 7/14 (20060101); H01M 4/04 (20060101); B05C 001/00 ()

Expiration Date: 01/02/2018