【摘要】 用γ LiAO2 粉料和带铸法制备电池隔膜。隔膜有很高的阻窜能力和较低的欧姆极化。在电流密度为 2 0 0和 2 4 6mA/cm2 下放电时 ,用此膜组装的电池组 (三对电池 ,电极面积为 12 2cm2 )输出电压分别为 2 .0 1和 1.78V ,输出功率达 53.4W .于 2 0 0和 30 0mA/cm2 下放电时 ,单电池 (电极面积为 2 8cm2 )输出电压分别高于 0 .85和 0 .75V ,输出功率约 6 .6W .补偿隔膜收缩导致电池性能的提高 .更多还原

【Abstract】 The matrix prepared with γ LiAlO 2 powder and by tape cast displayed higher ability of preventing from gas cross over and lower ohmic polarization. The voltages of the stack (three cells,122 cm 2) stacked with the matrix were 2.02 and 1.78 V at 200 and 246 mA/cm 2, respectively, and the output power reached 53.4 W. The cell(28 cm 2) voltages were 0.85 and 0.75 V at 200 and 300 mA/cm 2, respectively,and the output power was about 6.6 W. Compensating the shrinkage of matrix in stacking cells promoted the enhancement of the MCFC performance.更多还原