Patent ID: 8703347
Filing Date: 2014-04-22
Classification: H01M,Y02E

Abstract:
1. A flat fuel cell assembly, comprising: a membrane electrode assembly (MEA), comprising a proton conducting membrane, an anode catalyst layer, a cathode catalyst layer, an anode gas diffusion layer (GDL) and a cathode GDL, wherein the anode catalyst layer and the cathode catalyst layer are respectively disposed on two sides of the proton conducting membrane, and the anode GDL and the cathode GDL are respectively disposed on the anode catalyst layer and the cathode catalyst layer; a cathode porous current collector, disposed on one side of the cathode GDL of the MEA; an anode porous current collector, disposed on one side of the anode GDL of the MEA; and a gas barrier material layer, disposed above the cathode porous current collector, and having at least one opening for exposing the surface of the cathode porous current collector, wherein the opening ratio of the gas barrier material layer falls within 0.5%-21%, the thickness of the gas barrier material layer falls within 10 μm-5 mm, and a minimum aperture of the opening is larger than twice of the thickness of the gas barrier material layer.