用电化学方法研究了铝电解质熔液中石墨电极上的阳极过电压和阳极表面析出气泡的规律。阳极极化过电压满足Ｔａｆｅｌ方程，其常数ａ和ｂ分别为０．５３和０．１６。由于阳极气泡的析出，引起电极电位或电流的波动。在较低的电流密度和电极电位下，离开阳极表面的气泡质量相等；阳极气泡覆盖电极表面面积随电流和电位的升高而增大。 Electrochemical methods were used to study the anodic overvoltage on the graphite electrode and the evolution of bubbles on the anode surface of the electrolyte. The anodic polarization overvoltage satisfies the Tafel equation with constant a and b of 0.53 and 0.16, respectively. Due to the precipitation of the anode bubbles, the electrode potential or the current fluctuates. At lower current densities and electrode potentials, the mass of air bubbles leaving the anode surface is equal; the surface area of ​​the anode bubble covering electrode increases with increasing current and potential.