Abstract
This work studies the effects of acid concentration and current density on etching morphology, microstructure and static capacity of the aluminum foils used in high-voltage electrolytic capacitors. The behavior associated with electrochemical etching was investigated with a potentiostat. The aluminum etching type of DC etching is greatly influenced by the etching potential. The static capacity increased to 0.65 uF/cm2 with 540 V forming voltage by optimization of the etching parameters used in this work.
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Hung, C.Y., Lung, O.B. & Lien, L.Y. Effect of acid concentration and current density on DC etching of aluminum electrolytic capacitor foil. Korean J. Chem. Eng. 24, 881–887 (2007). https://doi.org/10.1007/s11814-007-0059-x
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DOI: https://doi.org/10.1007/s11814-007-0059-x