Electrode material for aluminum electrolytic capacitors and method for producing same
AssigneeHec Technology Japan Co., Ltd.
InventorToshifumi Taira
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Abstract
The present invention provides an electrode material for aluminum electrolytic capacitors, the electrode material being capable of exhibiting a high capacitance required for capacitors and having suppressed equivalent series resistance (ESR), and provides a method for producing the electrode material. The present invention provides an electrode material for aluminum electrolytic capacitors, comprising a sintered body of an aluminum alloy powder on at least one surface of a substrate, wherein the substrate is an aluminum foil substrate or an aluminum alloy foil substrate, and the aluminum alloy powder contains Fe in an amount of 2 to 499 mass ppm.
Claims8
An electrode material for aluminum electrolytic capacitors, comprising a sintered body of an aluminum alloy powder on at least one surface of a substrate, wherein
- the substrate is an aluminum foil substrate or an aluminum alloy foil substrate,
- the aluminum alloy powder contains Fe in an amount of 100 to 499 mass ppm, and
- a porosity of the electrode material is 46% or more.
A method for producing an electrode material for aluminum electrolytic capacitors, comprising
- (1) step 1 of forming a film of a paste composition containing an aluminum alloy powder on at least one surface of a substrate, and
- (2) step 2 of sintering the film at a temperature of 560° C. or more and 660° C. or less,
- wherein
- the substrate is an aluminum foil substrate or an aluminum alloy foil substrate,
- the aluminum alloy powder contains Fe in an amount of 100 to 499 mass ppm, and
- a porosity of the electrode material is 46% or more.
Dependencies are inferred from the claim text.