Patent ID: 6277447
Filing Date: 2001-08-21
Classification: B05B,C25B,H01M,Y02E

Abstract:
A method of spraying catalyst onto a membrane called alternative side spraying process, comprising:treating a membrane with a swelling agent comprising alcohol to form a pre-treated membrane;placing a catalyst ink in a spraying device;positioning a first surface of said pre-treated membrane a fixed distance from said spraying device;positioning a drying device at a fixed distance from said pre-treated membrane;spraying said catalyst ink into said first surface of said pre-treated membrane;drying said catalyst ink on said first surface of said pre-treated membrane with said drying device;positioning a second surface of said pre-treated membrane a fixed distance from said spraying device, wherein said second surface is a back side of said first surface of said pre-treated membrane;spraying said catalyst ink onto said second surface of said pre-treated membrane;drying said catalyst ink on said second surface of said pre-treated membrane with said drying device.