Heat-resistant alloy, alloy member for fuel cell, fuel cell stack device, fuel cell module, and fuel cell device

US8993189B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8993189-B2
Application numberUS-201013146391-A
CountryUS
Kind codeB2
Filing dateJan 25, 2010
Priority dateJan 28, 2009
Publication dateMar 31, 2015
Grant dateMar 31, 2015

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Abstract

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A heat-resistant alloy capable of effectively suppressing diffusion of Cr, as well as an alloy member for a fuel cell, a fuel cell stack device, a fuel cell module and a fuel cell device are provided. A heat-resistant alloy includes a Cr-containing alloy, and a Cr-diffusion suppression layer located on at least a part of a surface of the Cr-containing alloy, the Cr-diffusion suppression layer being made by laminating a first layer that contains a Zn-containing oxide and a second layer that does not contain ZnO but contains an (La, Sr)MnO 3 -based perovskite oxide in that order, so that it is possible to effectively suppress diffusion of Cr. By using the heat-resistant alloy for an alloy member for a fuel cell, a fuel cell stack device, a fuel cell module and a fuel cell device each having improved reliability can be obtained.

First claim

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The invention claimed is: 1. A current collecting member configured to electrically connect a plurality of fuel cells to one another, formed of an alloy member for a fuel cell formed of a heat-resistant alloy, the heat-resistant alloy comprising: a Cr-containing alloy; and a Cr-diffusion suppression layer located on at least a part of a surface of the Cr-containing alloy, the Cr-diffusion suppression layer being composed of a first layer that is disposed directly on the Cr-cont…

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What does patent US8993189B2 cover?
A heat-resistant alloy capable of effectively suppressing diffusion of Cr, as well as an alloy member for a fuel cell, a fuel cell stack device, a fuel cell module and a fuel cell device are provided. A heat-resistant alloy includes a Cr-containing alloy, and a Cr-diffusion suppression layer located on at least a part of a surface of the Cr-containing alloy, the Cr-diffusion suppression layer b…
Who is the assignee on this patent?
Higashi Masahiko, Fujimoto Tetsurou, Fukami Norimitsu, and 2 more
What technology area does this patent fall under?
Primary CPC classification H01M8/0206. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Mar 31 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).