| Solid oxide fuel cell (SOFC) has been receiving increasing attraction with regard to the direct conversion of chemical energy of fuels into electrical energy. Because of its substantially higher energy conversion efficiency than the present techniques and negligible production of pollutants, it has been considered as the "green power technology" of the 21st century. However, there are many problems to be solved such as material and Fabrication on SOFC.In this paper, a fabrication of anode supported for SOFC and a research on Ni-YSZ anode material are made, the main work and conclusions of this paper are as follows:(1) Ni-YSZ/YSZ/LSM anode supported PEN for solid oxide fuel cell is fabricated. Anode substrate, thin film YSZ electrolyte and LSM cathode are fabricated by dry-pressing process, spray-coating technique and slurry coating process respectively. Asymmetric anode substrate and temperature raised rapidly are the main factor of anode substrate warp and crack under molding pressure 25MPa-250MPa. Molding pressure, Sinter temperature in advance and the velocity of temperature raised are the main factors for the matching of anode substrate and thin film YSZ electrolyte. Dense and crack-free films are obtained with thickness in the range of 15-20μm. The open circuit voltage (OCV) of the cells reached 1. 097V and maximum power density 0.13W/cm2 at 800℃ with 250 ml/min of hydrogen airflow rate.(2) A study is made on NiO+ (Ca0.1Ce0.9O1.9)x(YSZ)1-x anode material. The calcium(10mol%) doping ceria(Ca0.1Ce0.9O1.9) is prepared by the solution route with copreciptation. After sintered at 1400℃ for 2 hour, a solid solution reaction occurs between YSZ and Ca0.1Ce0.9O1.9 and a (Ca0.1Ce0.9O1.9)x(YSZ)1-x solid solution is synthesized. It is a mixed (electronic and ionic) conductor, and the total conductivity is greater than that of YSZ. The application of the solid solution as SOFC anodes enhances the threephase boundary, which improves the performances of the anode and the single cell.(3) NiO/YSZ cermet anode material is preparated by coating precipitationmethod. SOFC anode formed a continuous network structure at 1400℃ for 2 h with this NiO coated by YSZ material. This means that the YSZ coating layer on the NiO surface using the coating precipitation method efficiently prevented the sintering and agglomeration of Ni. Therefore, electrode structure (such as TPB .region or porous structure) is optimized and.cell performance is improved greatly.
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