| abstract |
The invention provides operability, surface smoothness excellent, there is sufficient gas air permeability and conductivity, porous electrode base material to the damage of polyelectrolyte membrane and manufacture method thereof can be reduced when being assembled into fuel cell.Described porous electrode base material is the stacked integration of three-dimensional structure Y-2 that engaged by carbon of the three-dimensional structure Y-1 that engaged by carbon by carbon chopped fiber and carbon chopped fiber, in Y-1, carbon chopped fiber forms three-dimensional pilotaxitic texture, and in Y-2, carbon chopped fiber does not form three-dimensional pilotaxitic texture.The present invention also provides the manufacture method of this electrode base material and for the precursor sheet obtaining this electrode base material, the film-electrode bond comprising this electrode base material and polymer electrolyte fuel cell. |