Patent ID: 7138159
Filing Date: 2006-11-21
Classification: B01J,B22F,B24B,B30B,B82Y,C01B,C01G,C01P,C09G,C09K,C22C,H01G,H01J,H01L,H01M,H05K,Y02E,Y02P,Y10T

Abstract:
1. A method for the deposition of an electrocatalyst layer, comprising the steps of: a) dispersing electrocatalyst particles in a liquid carrier to form a liquid vehicle, wherein said electrocatalyst particles have a volume average particle size of not greater than about 20 μm; b) depositing said liquid vehicle onto a surface using a direct-write tool that is moved over an x-y grid relative to said surface; and c) heating said liquid vehicle to a temperature sufficient to form an electrocatalyst layer.