Electrode, membrane electrode assembly, electrochemical cell, stack, and electrolyzer

US2024120499A1 · US · A1

Patent metadata
FieldValue
Publication numberUS-2024120499-A1
Application numberUS-202318461693-A
CountryUS
Kind codeA1
Filing dateSep 6, 2023
Priority dateOct 7, 2022
Publication dateApr 11, 2024
Grant date

How to read this patent

A practical reading order for non-experts. Skip the full description unless you need deep technical detail.

  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

    Who owns or filed the patent and who is credited as inventor.

  4. Key dates

    Filing, priority, publication, and grant dates set the timeline.

  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

    Prior art links and similar publications in this corpus.

Abstract

Official abstract text for this publication.

An electrode according to an embodiment includes a support, and a catalyst layer including a sheet layer and a gap layer stacked, alternately on the support. The catalyst layer includes noble oxide and non-noble oxide. 4 [wt %] or more and 8 [wt %] or less of metal elements included in the catalyst layer is non-noble metal. An average thickness of the gap layer is 6 [nm] or more and 50 [nm] or less.

First claim

Opening claim text (preview).

What is claimed is: 1 . An electrode comprising: a support; and a catalyst layer including a sheet layer and a gap layer stacked, alternately on the support, wherein the catalyst layer includes noble oxide and non-noble oxide, 4 [wt %] or more and 8 [wt %] or less of metal elements included in the catalyst layer is non-noble metal, and an average thickness of the gap layer is 6 [nm] or more and 50 [nm] or less. 2 . The electrode according to claim 1 , wherein the non-noble metal oxide is an oxide including one or more metal elements selected from the group consisting of Ni, Co, and Mn. 3 . The electrode according to claim 1 , wherein the non-noble metal oxide is an oxide including one or more metal elements selected from the group consisting of Ni, Co, and Mn, and the total ratio of Ni, Co and Mn among the non-noble metal elements included in catalyst layer is 80 [wt %] or more and 100 [wt %] or less. 4 . The electrode according to claim 1 , wherein the noble oxide is an oxide including Ir and/or Ru. 5 . The electrode according to claim 1 , wherein 4 [wt %] or more and 7 [wt %] or less of the metal elements in the catalyst layer is non-noble metal. 6 . The electrode according to claim 1 , wherein 4 [wt %] or more and 6 [wt %] or less of the metal elements in the catalyst layer is non-noble metal. 7 . A membrane electrolyte assembly comprising: the electrode according to claim 6 . 8 . An electrochemical cell comprising: the membrane electrolyte assembly according to claim 7 . 9 . A stack comprising: the membrane electrolyte assembly according to claim 7 . 10 . A stack comprising: the electrochemical cell according to claim 8 . 11 . An electrolyzer comprising: the stack according to claim 9 . 12 . An electrolyzer comprising: the stack according to claim 10 .

Assignees

Inventors

Classifications

  • Hydrogen or oxygen · CPC title

  • Ammonia · CPC title

  • H01M4/8657Primary

    layered · CPC title

  • characterised by membrane-electrode assemblies [MEA] (H01M8/12 takes precedence) · CPC title

  • C25B1/04Primary

    by electrolysis of water · CPC title

Patent family

Related publications grouped by family.

External sources

Frequently asked questions

Answers are generated from the same data shown on this page.

What does patent US2024120499A1 cover?
An electrode according to an embodiment includes a support, and a catalyst layer including a sheet layer and a gap layer stacked, alternately on the support. The catalyst layer includes noble oxide and non-noble oxide. 4 [wt %] or more and 8 [wt %] or less of metal elements included in the catalyst layer is non-noble metal. An average thickness of the gap layer is 6 [nm] or more and 50 [nm] or …
Who is the assignee on this patent?
Toshiba Kk, Toshiba Energy Systems & Solutions Corp
What technology area does this patent fall under?
Primary CPC classification H01M4/8657. Mapped technology areas include Electricity.
When was this patent published?
Publication date Thu Apr 11 2024 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).