熔融碳酸盐燃料电池实验研究

Experiment Research on Molten Carbonate Fuel Cell

熔融碳酸盐燃料电池 (MCFC)是第 2代燃料电池 ,工作温度 650°C.组装了 1 2 cm× 1 0 cm的 MCFC单体电池 ,开发了电池的关键材料、烧结及升温程序 .电池以多孔陶瓷板材料 γ- Li Al O2 作为电解质支持体 ,其厚度为 0 .8mm,孔径分布 0 .1～ 0 .8μm,孔隙率 50 % ;阴极采用多孔板 Ni,厚度为 0 .8mm,平均孔径为 1 2 μm,孔隙率 55% ;阳极采用多孔板 Ni,厚度为 0 .8mm,平均孔径为 8μm,孔隙率 50 % .电池的开路电压达到 1 .1 0 V,电流密度达到 1 2 0 m A/cm2 ,工作时输出电压为 0 .65～ 0 .70 V,输出功率 5～ 1 0

Molten carbonate fuel cell (MCFC) is the second-generation fuel cell whose operating temperature is 650°C. The 12 cm×10 cm individual MCFC was assembled, the key material, the sinter of the cell and the program of its increasing temperature were developed. The porous ceramic material of γ-LiAlO2 is used as electrolytic supporter whose thick is 0.8 mm. The distribution of the hole diameter ranges from 0.1 to 0.8μm. The porous ratio is 50%. The porous Ni plate is used as the cathode. The thickness of this plate is 0.8 mm, and the average diameter of the hole and the porous ratio are 12 μm and 55% respectively. The porous Ni plate is used as the anode. The thickness of the plate is 0.8 mm, and the average diameter of the hole and the porous ratio are 8 μm and 50% respectively. The opening-circuit voltage of the cell is 1.10 V. The current density reaches 120 mA/cm2. The output voltage is 0.65-0.70 V, and the output power is 5-10 W.