Electrochemical cell

US2025297391A1 · US · A1

Patent metadata
FieldValue
Publication numberUS-2025297391-A1
Application numberUS-202418905271-A
CountryUS
Kind codeA1
Filing dateOct 3, 2024
Priority dateMar 19, 2024
Publication dateSep 25, 2025
Grant date

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  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

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  4. Key dates

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  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

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Abstract

Official abstract text for this publication.

An electrochemical cell includes a gas container and a cell body portion. The gas container includes a metal support having a plurality of communication holes formed through a main surface thereof, a gas supply hole, and a gas discharge hole, a flow path member defining an internal space between the metal support and the flow path member, and a welded portion sealing a gap between the metal support and the flow path member. The internal space includes a gas supply chamber in communication with the gas supply hole, a gas discharge chamber in communication with the gas discharge hole, and a gas distribution chamber disposed between the gas supply chamber and the gas discharge chamber. When viewed in a plan view of the main surface, the welded portion includes a narrowing portion for dividing the gas distribution chamber from the gas supply chamber or the gas discharge chamber.

First claim

Opening claim text (preview).

1 . An electrochemical cell comprising: a gas container including a metal support having a plurality of communication holes formed through a main surface thereof, a gas supply hole, and a gas discharge hole, a flow path member defining an internal space between the metal support and the flow path member, and a welded portion sealing a gap between the metal support and the flow path member; and a cell body portion disposed on the main surface and covering the plurality of communication holes; wherein the internal space includes a gas supply chamber in communication with the gas supply hole, a gas discharge chamber in communication with the gas discharge hole, and a gas distribution chamber in communication with the plurality of communication holes, the gas distribution chamber being disposed between the gas supply chamber and the gas discharge chamber, and when viewed in a plan view of the main surface, the welded portion includes a narrowing portion for dividing the gas distribution chamber from the gas supply chamber or the gas discharge chamber. 2 . The electrochemical cell according to claim 1 , wherein when viewed in the plan view of the main surface, the gas container includes a recess formed along the narrowing portion. 3 . The electrochemical cell according to claim 1 , wherein when viewed in the plan view of the main surface, a corner of the narrowing portion is rounded. 4 . The electrochemical cell according to claim 1 , wherein when viewed in the plan view of the main surface, in a case in which the narrowing portion divides the gas distribution chamber from the gas supply chamber, the welded portion includes a first portion facing the gas supply chamber, a corner of the first portion being rounded. 5 . The electrochemical cell according to claim 1 , wherein when viewed in the plan view of the main surface, in a case in which the narrowing portion divides the gas distribution chamber from the gas discharge chamber, the welded portion includes a second portion facing the gas discharge chamber, a corner of the second portion being rounded. 6 . The electrochemical cell according to claim 1 , wherein when viewed in the plan view of the main surface, the welded portion includes a third portion facing the gas distribution chamber, a corner of the third portion being rounded.

Assignees

Inventors

Classifications

  • Constructional parts of cells · CPC title

  • by electrolysis of water · CPC title

  • C25B15/08Primary

    Supplying or removing reactants or electrolytes; Regeneration of electrolytes · CPC title

  • Fuel cells · CPC title

Patent family

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Frequently asked questions

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What does patent US2025297391A1 cover?
An electrochemical cell includes a gas container and a cell body portion. The gas container includes a metal support having a plurality of communication holes formed through a main surface thereof, a gas supply hole, and a gas discharge hole, a flow path member defining an internal space between the metal support and the flow path member, and a welded portion sealing a gap between the metal sup…
Who is the assignee on this patent?
Ngk Insulators Ltd
What technology area does this patent fall under?
Primary CPC classification C25B15/08. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Thu Sep 25 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).