It is indicated that K-AMTEC is better than Na-AMTEC obviously in output voltage, electrode power density and thermal-to-electric converting efficiency when electrode electric current density is above some eigen-value.

• 计算结果表明,存在一个电流密度的阈值,当电极电流密度大于此值时,无论是输出电压、电极功率密度还是热电转换效率,K-AMTEC都明显优于Na-AMTEC。