Patent ID: 7815843

Claim:
An anode treatment process to increase the power density of a planar solid oxide fuel cell membrane electrode assembly (SOFC-MEA) with full dense electrolyte layer, comprising: a. preparing anode electrode green tapes with 50 wt % NiO+50 wt % 8YSZ and an additional certain amount of graphite, cutting and laminating the produced anode electrode green tapes, and conducting sintering for the anode electrode green tapes at 1400° C. for 4 hours to produce a first stage of anode electrode supported substrate; b. conducting abrasion and polishing for one side surface of the first stage anode electrode supported substrate; c. coating a membrane electrolyte layer having a thickness less than 10 μm of electrolyte layer onto the polished anode electrode surface to obtain a SOFC half cell; d. conducting sintering of the SOFC half cell at about 1400° C. for more than 4 hours to obtain a ceramic half cell; e. evaluating the ceramic half cell obtained in step d with SEM to determine if open pores are remained, wherein if open pores remain, repeating step c and d until the open pores are removed, and wherein if open pores do not remain, proceeding to step f; f. printing cathode materials onto the membrane electrolyte layer of the ceramic half cell and conducting sintering of the ceramic half cell at 1200° C. for about 3 hours, wherein the temperature rate is 3° C./min, to complete fabrication of membrane electrode assembly (MEA); g. conducting abrasion and polishing on the anode surface of the completed MEA, wherein the polishing depth is from 10 to 30 μm to remove Ni depletion layer; and h. conducting performance testing for and measuring power density of the polished MEA; wherein Step b further comprises smoothening of the one side surface of the first stage anode electrode supported substrate, and wherein an abrader and polishing machine performs the abrasion and polishing.