Title:
ALUMINUM MATERIAL FOR ELECTROLYTIC CAPACITOR ELECTRODES
Document Type and Number:
Japanese Patent JP3689323
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an aluminum material for electrolytic capacitor electrodes, which can surely increase a surface area and gives higher capacitance, by generating high-density deep etch pits uniformly.
SOLUTION: The aluminum material comprises a chemical composition of Al matrix of 99.9% or more, 2-50 ppm Si, 2-50 ppm Fe, 15-150 ppm Cu, 1-80 ppm Zn, 0.1-3 ppm Pb, 11 ppm or more at least one kind of Zr or V, 11-100 ppm total quantity of the trace elements, 2 ppm or less B which is limited, and aluminum and impurities as the balance.
Inventors:
Taro Kato
Akira Koyama
Masao Akao
Tadao Fujihira
Tomoaki Yamanoi
Stretch
Akira Koyama
Masao Akao
Tadao Fujihira
Tomoaki Yamanoi
Stretch
Application Number:
JP2000284836A
Publication Date:
August 31, 2005
Filing Date:
September 20, 2000
Export Citation:
Assignee:
SHOWA DENKO K.K.
Nichicon Co., Ltd.
Nichicon Co., Ltd.
International Classes:
C22C21/00; C22F1/04; H01G9/04; H01G9/042; H01G9/045; B21B1/40; B21B3/00; B21B45/00; (IPC1-7): C22C21/00; H01G9/042
Domestic Patent References:
| JP10140276A | ||||
| JP2270928A | ||||
| JP55145A | ||||
| JP53114059A |
Attorney, Agent or Firm:
Hisayoshi Shimizu
Ken Takada
Kurose Yasuhisa
Ken Takada
Kurose Yasuhisa
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