▎ 摘　　要

NOVELTY - Fuel cell gas diffusion layer comprises an acid blocking layer, a microporous layer and a supporting layer. The acid blocking layer is attached to the surface of the microporous layer. The microporous layer is attached to the surface of the supporting layer. The acid blocking layer comprises nano-sheet structure material, phosphoric acid anchoring material and additive. USE - The diffusion layer is useful in high temperature polymer electrolyte membrane fuel cell (claimed), high temperature proton exchange membrane fuel cell electrode, and directly using hydrogen-rich fuel obtained by reforming methanol, ethanol, methane, gasoline and diesel oil. ADVANTAGE - The diffusion layer: has a layer thickness, hydrophilic property and adjustable porosity, which can be used in high temperature proton exchange membrane fuel cell electrode. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for the preparing the fuel cell gas diffusion layer. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the gas diffusion layer (Drawing includes non-English language text).