Electrode and water electrolysis apparatus

US2025034728A1 · US · A1

Patent metadata
FieldValue
Publication numberUS-2025034728-A1
Application numberUS-202218715196-A
CountryUS
Kind codeA1
Filing dateAug 25, 2022
Priority dateDec 24, 2021
Publication dateJan 30, 2025
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 includes a metal porous-body sheet formed of a metal porous body having a skeleton, the skeleton having a three-dimensional network structure, and a metallic support body having a plate shape and disposed on one main surface of the metal porous-body sheet. The one main surface has a plurality of machined holes each formed perpendicularly to the one main surface, and at least some of the plurality of machined holes are disposed at equal intervals. The metallic support body has a plurality of through holes extending through two surfaces of the metallic support body, and at least some of the plurality of through holes are disposed at equal intervals. A center of each of the some of the plurality of machined holes and a center of each of the some of the plurality of through holes are shifted from each other in one direction in plan view.

First claim

Opening claim text (preview).

1 . An electrode comprising: a metal porous-body sheet formed of a metal porous body having a skeleton, the skeleton having a three-dimensional network structure; and a metallic support body having a plate shape and disposed on one main surface of the metal porous-body sheet, wherein the one main surface has a plurality of machined holes each formed perpendicularly to the one main surface, and at least some of the plurality of machined holes are disposed at equal intervals, wherein the metallic support body has a plurality of through holes extending through two surfaces of the metallic support body, and at least some of the plurality of through holes are disposed at equal intervals, and wherein the metal porous-body sheet and the metallic support body are disposed such that a center of each of the some of the plurality of machined holes and a center of each of the some of the plurality of through holes are shifted from each other in one direction in plan view. 2 . The electrode according to claim 1 , wherein a maximum diameter of the plurality of machined holes is 0.5 mm to 3.5 mm. 3 . The electrode according to claim 1 , wherein a number of the plurality of machined holes is ⅓ times to 4 times a number of the plurality of through holes. 4 . The electrode according to claim 1 , wherein the plurality of machined holes extend through two surfaces of the metal porous-body sheet. 5 . The electrode according to claim 1 , wherein the metal porous-body sheet and the metallic support body are disposed such that a center of each of all of the plurality of machined holes and a center of each of all of the plurality of through holes are shifted from each other in one direction in plan view. 6 . The electrode according to claim 1 , wherein an aperture ratio of the metal porous-body sheet is 5% to 35%. 7 . The electrode according to claim 1 , wherein the metallic support body is made of an expand metal or a punching metal. 8 . The electrode according to claim 1 , wherein a surface of the metal porous-body sheet is made of nickel or a nickel alloy. 9 . The electrode according to claim 1 , wherein a surface of the metallic support body is made of nickel or a nickel alloy. 10 . A water electrolysis apparatus comprising: the electrode according to claim 1 . 11 . The water electrolysis apparatus according to claim 10 , wherein the metal porous-body sheet and the metallic support body are disposed such that a center of each of the some of the plurality of machined holes is positioned above a center of each of the some of the plurality of through holes in a direction of gravity.

Assignees

Inventors

Classifications

  • C25B1/04Primary

    by electrolysis of water · CPC title

  • consisting of a single catalytic element or catalytic compound · CPC title

  • Electrodes comprising one or more electrocatalytic coatings on a substrate · CPC title

  • C25B11/031Primary

    Porous electrodes · CPC title

  • Alloys · 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 US2025034728A1 cover?
An electrode includes a metal porous-body sheet formed of a metal porous body having a skeleton, the skeleton having a three-dimensional network structure, and a metallic support body having a plate shape and disposed on one main surface of the metal porous-body sheet. The one main surface has a plurality of machined holes each formed perpendicularly to the one main surface, and at least some o…
Who is the assignee on this patent?
Sumitomo Electric Industries
What technology area does this patent fall under?
Primary CPC classification C25B1/04. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Thu Jan 30 2025 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).