本文对LG3铝箔组织结构与交流腐蚀后比电容量的关系进行了研究。结果表明,淬火过饱和空位浓度、立方织构体积分数和杂质的存在状态是影响铝箔比电容量的主要因素。淬火过饱和空位浓度越高,位错环就越多,腐蚀活化点就越多,比电容量就越高。铝箔立方织构体积分数越高,第二相杂质粒子越少,比电容量就越高。要提高铝箔的比电容量,还应考虑淬火过饱和空位浓度,立方织构体积分数和杂质存在状态的综合影响。 In this paper, the relationship between the structure of LG3 aluminum foil and the specific capacitance after AC corrosion has been studied. The results show that quenching supersaturated vacancy concentration, cubic texture volume fraction and the presence of impurities are the main factors affecting the specific capacitance of aluminum foil. The higher the quench supersaturated vacancy concentration, the more the dislocation loop, the more the corrosion activation point, the higher the specific capacitance. The higher the cubic volume fraction of foil texture, the less the second phase impurity particles, the higher the specific capacitance. To increase the specific capacitance of aluminum foil, the combined effect of quench supersaturated vacancy concentration, cubic texture volume fraction and the presence of impurities should also be considered.