Hung C.YLung O.BYUEH-LIEN LEE2022-11-162022-11-16200702561115https://www.scopus.com/inward/record.uri?eid=2-s2.0-36849086411&doi=10.1007%2fs11814-007-0059-x&partnerID=40&md5=591c6daef825880f2aed9edef5bad324https://scholars.lib.ntu.edu.tw/handle/123456789/625113This 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. © 2007 Springer.Aluminum etching; Capacitors; Current density; Potentialjournal article10.1007/s11814-007-0059-x2-s2.0-36849086411