Electrically conductive member, cell stack device, module, module housing device, and method for manufacturing electrically conductive member
US-2017237076-A1 · Aug 17, 2017 · US
Alloy member
US11081705B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11081705-B2 |
| Application number | US-201916728631-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 27, 2019 |
| Priority date | Sep 7, 2018 |
| Publication date | Aug 3, 2021 |
| Grant date | Aug 3, 2021 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
An alloy member includes a base member constituted by an alloy material containing chromium, a chromium oxide layer for covering at least a portion of a surface of the base member, a pore that is formed in an interface region of the base member that is located 30 μm or less from an interface between the chromium oxide layer and the base member, and an extending portion extending from the pore into the base member. The pore is configured to inhibit the separation of the chromium oxide layer from the base member The extending portion contains an oxide of an element whose equilibrium oxygen pressure is lower than that of a major element of the base member.
First claim
Opening claim text (preview).
What is claimed is: 1. An alloy member configured to be used in an electrochemical cell stack, the alloy member comprising: a base member containing an alloy material containing chromium as a major element; a chromium oxide layer covering at least a portion of a surface of the base member; a plurality of pores formed in the base member and located within 30 μm from an interface between the chromium oxide layer and the base member, the pores configured to inhibit separation of the chromium oxide layer from the base member; and extending portions containing an oxide of an element, the element having an equilibrium oxygen pressure lower than the equilibrium oxygen pressure of the major element of the alloy material, wherein the chromium oxide layer covering the base member is formed in a manner where the chromium oxide layer does not extend into the pores in the base member, a tip end of each extending portion is exposed to empty interior space in one of the pores, and a portion of each extending portion other than the tip end is embedded in the base member. 2. The alloy member according to claim 1 , comprising a metal oxide disposed on an inner surface of the pore.
Assignees
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Classifications
Energy storage using batteries · CPC title
Metals or alloys · CPC title
Void-containing component is inorganic · CPC title
in the form of layered or coated products · CPC title
characterised by internal manifolds · CPC title
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Frequently asked questions
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- What does patent US11081705B2 cover?
- An alloy member includes a base member constituted by an alloy material containing chromium, a chromium oxide layer for covering at least a portion of a surface of the base member, a pore that is formed in an interface region of the base member that is located 30 μm or less from an interface between the chromium oxide layer and the base member, and an extending portion extending from the pore i…
- Who is the assignee on this patent?
- Ngk Insulators Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01M8/0245. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Aug 03 2021 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 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).