CAPACITOR

To prevent cracks and breaks during a process of connecting a tab to an electrode foil that has been subjected to high-magnification surface enlargement and chemical conversion treatment, thereby improving the reliability of the capacitor.SOLUTION: A method for manufacturing a capacitor in which an electrode foil 2 and a terminal (tab) 4 are connected includes the steps of subjecting an electrode foil to a surface-expanding treatment, forming a plurality of divided sections 12 in the electrode foil that has been subjected to the surface-expanding treatment, forming an oxide film on the surfaces of the divided portions in the electrode foil with the plurality of divided portions formed, and arranging terminals on the electrode foil with the oxide film formed on the surfaces of the plurality of divided portions and performing a connection process, and the plurality of divided portions are formed at least in a connection portion with the terminal.SELECTED DRAWING: Figure 2 【課題】高倍率の拡面化処理、化成処理が施された電極箔に対してタブを接続する処理において亀裂や破断を防止し、コンデンサの信頼性を高める。【解決手段】 電極箔２と端子（タブ）４を接続するコンデンサの製造方法であって、電極箔に拡面化処理を施す工程と、前記拡面化処理を施した電極箔に対し、複数の分断部１２を形成する工程と、複数の分断部を形成した電極箔に対し、分断部の表面に酸化皮膜を形成する工程と、複数の分断部の表面に酸化皮膜を形成した電極箔に端子を配置して接続加工をする工程と、を含み、少なくとも端子との接続部に複数の分断部が形成されている。【選択図】 図２