专利检索 ap:("SHOWA DENKO K.K.") AND inv:"MAEDA, Masao Showa Denko Sakai Aluminum K.K." 第 1 页

1.

发明授权
ALUMINUM MATERIAL FOR ELECTROLYTIC CAPACITOR ELECTRODE, PRODUCTION METHOD OF ELECTRODE MATERIAL FOR ELECTROLYTIC CAPACITOR, ANODE MATERIAL FOR ALUMINUM ELECTROLYTIC CAPACITOR, AND ALUMINUM ELECTROLYTIC CAPACITOR 有权
标题翻译：铝材料，电极上的电解电容器，用于生产电极材料的电解电容器，负极材料的铝电解电容器和铝电解电容

公开(公告)号：EP1841892B1

公开(公告)日：2012-08-01

申请号：EP05822608.5

申请日：2005-12-21

申请人： SHOWA DENKO K.K.

发明人： YOSHIDA, Katsuoki Showa Denko Sakai Aluminum K.K. , YAMANOI, Tomoaki Showa Denko Sakai Aluminum K.K. , MAEDA, Masao Showa Denko Sakai Aluminum K.K. , WATANABE, Kiyoshi Showa Denko Sakai Aluminum K.K.

IPC分类号： C22C21/00 , H01G9/004 , C25F3/04

CPC分类号： H01G9/045 , C25F3/04

摘要： An aluminum material for electrolytic capacitor electrodes, wherein, in an alloy composition, the aluminum material contains Ga: 0.0005 mass% or more, and wherein a ratio AGa/BGa of Ga content AGa (mass%) in a surface layer ranging from a surface to a 5 nm depth to Ga content BGa (mass%) in an inside of the aluminum material deeper than 5nm from the surface is 3 or less, and wherein a potential at the point where the current density increases rapidly E is higher than -770 mV vs S.C.E and lower than -710 mV vs S.C.E.