Patent ID: 8921003

Claim:
A manufacturing method of a solid oxide fuel cell, comprising steps of: performing a preliminary treatment on a porous metal substrate to reduce the sizes of surface pores of the porous metal substrate; forming an anode layer, an electrolyte layer, a cathode interlayer and a cathode current collecting layer in order on the preheated porous metal substrate by tri-gas atmospheric plasma spray processes with medium currents under 520A and high voltages of 86 to 106V after the preliminary treatment; treating the plasma sprayed cell by a post treatment; and combining the porous metal substrate with a metal frame; wherein the anode layer, the cathode layer, and the cathode current collecting layer are all porous; wherein the anode layer is nano structured, the cathode interlayer is nanostructured or sub-micron structured, and the cathode current collecting layer is sub-micron or micron structured; wherein the electrolyte layer is dense; wherein the metal frame has a protection layer.