Gdl cutting system of fuel cell and cutting method

Abstract

A GDL cutting system of a fuel cell includes: a laser-cutting device that forms a gas diffusion layer by radiating a laser on the surface of a GDL fabric panel moving on a conveyer; an adsorbing-conveying device that adsorbs and conveys at least two gas diffusion layers cut by the laser-cutting device; a first vision sensor that senses an upper side of the gas diffusion layers cut by the laser-cutting device; and a second vision sensor that senses a lower side of the gas diffusion layers adsorbed and conveyed by the adsorbing-conveying device.

What is claimed is: 
     
         1 . A method of cutting a gas diffusion layer (GDL) for a fuel cell, comprising steps of:
 supplying a GDL fabric panel to an inlet of a conveyer;   forming the gas diffusion layer by cutting the GDL fabric panel with a laser radiating onto the GDL fabric panel moving on the conveyer; and   performing a visual examination of the upper and lower sides of the gas diffusion layer.   
     
     
         2 . The method of  claim 1 , further comprising a step of:
 collecting scraps of the gas diffusion layer separated from the GDL fabric panel.   
     
     
         3 . The method of  claim 1 , wherein:
 in the step of cutting the gas diffusion layer with the laser,   dirt attached to the GDL fabric panel is removed by spraying air.   
     
     
         4 . The method of  claim 1 , wherein:
 normal gas diffusion layers and abnormal gas diffusion layers are divided and loaded according to the result of the visual examination.   
     
     
         5 . The method of  claim 1 , further comprising a step of:
 filtering granular dirt at an exit of the conveyer.   
     
     
         6 . The method of  claim 1 , wherein:
 the step of performing a visual examination of the upper and lower sides of the gas diffusion layer is performed while the gas diffusion layer is being moved.