Fuel battery

US2020403252A1 · US · A1

Patent metadata
FieldValue
Publication numberUS-2020403252-A1
Application numberUS-202017007263-A
CountryUS
Kind codeA1
Filing dateAug 31, 2020
Priority dateAug 7, 2015
Publication dateDec 24, 2020
Grant date

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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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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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A porous metal body including a skeleton having a three-dimensional mesh-like structure, the porous metal body having a plate-like overall shape. The skeleton has a hollow structure and includes a primary metal layer and at least one of a first microporous layer and a second microporous layer. The primary metal layer is composed of nickel or a nickel alloy. The first microporous layer contains nickel and chromium and is disposed on the outer peripheral surface of the primary metal layer. The second microporous layer contains nickel and chromium and is disposed on the inner peripheral surface of the primary metal layer, the inner peripheral surface facing the hollow space of the skeleton.

First claim

Opening claim text (preview).

1 - 18 . (canceled) 19 . A fuel battery comprising the porous metal body, the porous metal body serving as a gas diffusion layer, the porous metal body including a skeleton having a three-dimensional mesh-like structure, the porous metal body having a plate-like overall shape, the skeleton having a hollow structure, the skeleton comprising a primary metal layer and at least one of a first microporous layer and a second microporous layer, the primary metal layer being composed of nickel or a nickel alloy, the first microporous layer containing nickel and chromium, the first microporous layer being disposed on an outer peripheral surface of the primary metal layer, the second microporous layer containing nickel and chromium, the second microporous layer being disposed on an inner peripheral surface of the primary metal layer, the inner peripheral surface facing a hollow space of the skeleton. 20 . The fuel battery according to claim 19 , wherein the skeleton comprises the primary metal layer, the first microporous layer, and the second microporous layer. 21 . The fuel battery according to claim 19 , wherein the content of chromium in the porous metal body is 20% by mass or more and 50% by mass or less. 22 . The fuel battery according to claim 19 , wherein the overall shape of the porous metal body has a thickness of 0.2 mm or more and 1.2 mm or less. 23 . The fuel battery according to claim 19 , wherein the porous metal body has a porosity of 51% or more and 90% or less and a metal-coating weight of 200 g/m 2 or more and 1200 g/m 2 or less.

Assignees

Inventors

Classifications

  • layered · CPC title

  • characterised by the form · CPC title

  • containing only metallic or ceramic material, e.g. made by sintering or sputtering · CPC title

  • in the form of layered or coated products · CPC title

  • Porous electrodes · CPC title

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Frequently asked questions

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What does patent US2020403252A1 cover?
A porous metal body including a skeleton having a three-dimensional mesh-like structure, the porous metal body having a plate-like overall shape. The skeleton has a hollow structure and includes a primary metal layer and at least one of a first microporous layer and a second microporous layer. The primary metal layer is composed of nickel or a nickel alloy. The first microporous layer contains …
Who is the assignee on this patent?
Sumitomo Electric Industries
What technology area does this patent fall under?
Primary CPC classification B22F7/002. Mapped technology areas include Operations & Transport.
When was this patent published?
Publication date Thu Dec 24 2020 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).