The effects of the aging treatments parameters (aging temperature of 80-160℃, aging time of 3 - 9 h) on micros tructure, specific capacitance and surfacial corrosion morphology of cathode foil of 3003 aluminum alloy were studiedd by means of electrical resisitivity measuring, scanning electron microscopy, transmission electron microscopy, X-ray diffraction and specific capacitance testing. The results show that fine and dispersed MnAl6 intermetallic particles dominated in precipitated particles, as well as the distribution of dislocation after cooling was homogeneous, and the specific capacitance of cathode foil up to 580 μF·cm-2 when the foils were aged at 80 ℃ for 3 h, Afte the foils were aged at 160℃ , the volume fraction of coarsened intermetallic (Fe, Mn) Al6 particles incseased and it led to poor corrosion property with heterogeneous etched pits, which was disadvantaqeous to improving specific capacitance.%采用电阻仪、扫描电子显微镜、透射电镜、X射线衍射仪以及比电容测定仪等研究了时效工艺(温度80～160℃,时间3～9 h)对3003铝合金阴极箔组织、比电容和表面腐蚀形貌等的影响.结果表明:阴极箔经80℃×3h时效处理后,析出相粒子以细小弥散的MnAl6为主,冷轧至成品后位错分布均匀,比电容可达580 μF.cm-2;160℃时效后阴极箔中粗大的(Fe,Mn) Al6相增多,冷轧至成品后位错分布不均,腐蚀表面出现大的孔洞,不利于比电容的提高.
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