Porous body, fuel cell including the same, and steam electrolysis apparatus including the same

US2021175520A1 · US · A1

Patent metadata
FieldValue
Publication numberUS-2021175520-A1
Application numberUS-202017056281-A
CountryUS
Kind codeA1
Filing dateApr 15, 2020
Priority dateMay 22, 2019
Publication dateJun 10, 2021
Grant date

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  1. Title

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  2. Abstract

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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Abstract

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A porous body comprises a framework having a three-dimensional network structure, the framework having a body including nickel and cobalt as constituent elements, the body of the framework including the cobalt at a proportion in mass of 0.2 or more and 0.8 or less relative to a total mass of the nickel and the cobalt.

First claim

Opening claim text (preview).

1 . A porous body comprising a framework having a three-dimensional network structure, the framework having a body including nickel and cobalt as constituent elements, the body of the framework including the cobalt at a proportion in mass of 0.2 or more and 0.8 or less relative to a total mass of the nickel and the cobalt. 2 . The porous body according to claim 1 , wherein the body of the framework includes the cobalt at a proportion in mass exceeding 0.4 and less than 0.6 relative to the total mass of the nickel and the cobalt. 3 . The porous body according to claim 1 , wherein the body of the framework further includes at least one non-metallic element selected from the group consisting of nitrogen, sulfur, fluorine, and chlorine as a constituent element, and the non-metallic element is contained at a proportion of 5 ppm or more and 10,000 ppm or less in total with respect to the body of the framework. 4 . The porous body according to claim 1 , wherein the body of the framework further includes phosphorus as a constituent element, and the phosphorus is contained at a proportion of 5 ppm or more and 50,000 ppm or less with respect to the body of the framework. 5 . The porous body according to claim 1 , wherein the body of the framework further includes at least two non-metallic elements selected from the group consisting of nitrogen, sulfur, fluorine, chlorine and phosphorus as constituent elements, and the non-metallic elements are contained at a proportion of 5 ppm or more and 50,000 ppm or less in total with respect to the body of the framework. 6 . The porous body according to claim 1 , wherein the body of the framework further includes oxygen as a constituent element. 7 . The porous body according to claim 6 , wherein the oxygen is included in the body of the framework in an amount of 0.1% by mass or more and 35% by mass or less. 8 . The porous body according to claim 6 , wherein the body of the framework includes a spinel-type oxide. 9 . The porous body according to claim 1 , wherein when the body of the framework is observed in cross section at a magnification of 3,000 times to obtain an observed image the observed image presents in any area 10 μm square thereof five or less voids each having a longer diameter of 1 μm or more. 10 . The porous body according to claim 1 , wherein the framework is hollow. 11 . The porous body according to claim 1 , having a sheet-shaped external appearance and a thickness of 0.2 mm or more and 2 mm or less. 12 . A fuel cell comprising a current collector for an air electrode and a current collector for a hydrogen electrode, at least one of the current collector for the air electrode or the current collector for the hydrogen electrode including the porous body according to claim 1 . 13 . A steam electrolysis apparatus comprising a current collector for an air electrode and a current collector for a hydrogen electrode, at least one of the current collector for the air electrode or the current collector for the hydrogen electrode including the porous body according to claim 1 .

Assignees

Inventors

Classifications

  • C22C1/08Primary

    Alloys with open or closed pores · CPC title

  • of porous nature · CPC title

  • Fuel cells with solid oxide electrolytes · CPC title

  • characterised by the form (characterised by a channel configuration H01M8/0258) · CPC title

  • H01M8/0232Primary

    Metals or alloys · CPC title

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What does patent US2021175520A1 cover?
A porous body comprises a framework having a three-dimensional network structure, the framework having a body including nickel and cobalt as constituent elements, the body of the framework including the cobalt at a proportion in mass of 0.2 or more and 0.8 or less relative to a total mass of the nickel and the cobalt.
Who is the assignee on this patent?
Sumitomo Electric Industries
What technology area does this patent fall under?
Primary CPC classification C22C1/08. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Thu Jun 10 2021 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).