20140011118 | Carbon Substrate For Gas Diffusion Layer, Gas Diffusion Layer Using The Same, And Electrode For Fuel Cell, Membrane-Electrode Assembly And Fuel Cell Comprising The Gas Diffusion Layer - A carbon substrate for a gas diffusion layer that has a porosity gradient in a thickness direction thereof, a gas diffusion using the carbon substrate, an electrode and a membrane-electrode assembly for a fuel cell that include the gas diffusion layer, and a fuel cell including the membrane-electrode assembly having the gas diffusion layer are provided. The gas diffusion layer has improved water discharge ability and improved bending strength both in the machine direction and cross-machine direction. | 01-09-2014 |