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2. 发明公开

EP0490574A1 Aluminum foil as electrolytic condenser electrodes 失效
标题翻译： Aluminiumfolie wie Elektroden von elektrolytischen Kondensator。
公开(公告)号：EP0490574A1
公开(公告)日：1992-06-17
申请号：EP91311298.3
申请日：1991-12-04
申请人： SHOWA ALUMINUM KABUSHIKI KAISHA
发明人： Fujihira, Tadao , Sakaguchi, Masashi , Tada, Kiyoshi , Tanio, Makoto , Isoyama, Eizo
IPC分类号： H01G9/04
CPC分类号： H01G9/045 , F05C2201/0475 , F05C2203/04 , F16J2015/0837 , F16J2015/0862
摘要： An aluminum foil for use as the electrolytic condenser electrodes is composed of 99.9 % or more of aluminum. The fil also contains given amounts of one or more auxiliary elements selected from a group consisting of Cu, Si, Zn, Mn, Ga, P, V, Ti, Cr, Ni, Ta, Zr, C, Be, Pb, In and rare-earth elements, with the auxiliary elements being contained either in a boundary region disposed between a foil body and an oxide layer thereon, or in surface portion of the oxide layer, at a concentrated state such that an ion strength ratio of the concentration of the auxiliary elements in the region or the portion to their concentration in the foil body is from 1.2 : 1 to 30 : 1. Alternatively, the foil may contain given amounts of one or more auxiliary elements selected from a group consisting of Fe, Cu, Si, Zn, Mn, Ga, P, V, Ti, Cr, Ni, Ta, Zr, C, Be, B, Mg, Pb, In, Bi and rare-earth elements, with the auxiliary elements being contained not only in the boundary region but also in the surface portion at the same concentrated state as described above.
摘要翻译：用作电解电容器电极的铝箔由99.9％以上的铝构成。该锉还含有一定量的一种或多种选自Cu，Si，Zn，Mn，Ga，P，V，Ti，Cr，Ni，Ta，Zr，C，Be，Pb，In和稀土元素，其中辅助元素被包含在设置在箔体和氧化物层之间的边界区域中，或者在氧化物层的表面部分中，处于浓缩状态，使得浓度的离子强度比该区域中的辅助元件或它们在箔体中的浓度部分为1.2:1至30:1。或者，箔可以含有一定量的一种或多种辅助元素，其选自Fe，Cu， Si，Zn，Mn，Ga，P，V，Ti，Cr，Ni，Ta，Zr，C，Be，B，Mg，Pb，In，Bi和稀土元素，边界区域，而且在表面部分处于与上述相同的浓缩状态。

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