Fuel cell and fuel cell system

US2022181662A1 · US · A1

Patent metadata
FieldValue
Publication numberUS-2022181662-A1
Application numberUS-202117522041-A
CountryUS
Kind codeA1
Filing dateNov 9, 2021
Priority dateDec 3, 2020
Publication dateJun 9, 2022
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

    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

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Abstract

Official abstract text for this publication.

Provided are a fuel cell and a fuel cell system capable of suppressing deterioration of the electrolyte membrane by iron-based foreign substances with a simple structure. The fuel cell includes: a MEGA and a nitrate compound, wherein the MEGA has an electrolyte membrane, an anode catalyst layer disposed on one surface of the electrolyte membrane, a cathode catalyst layer disposed on the other surface of the electrolyte membrane, an anode gas diffusion layer disposed on a surface of the anode catalyst layer which is opposite to a surface of the anode catalyst layer on the electrolyte membrane side, and a cathode gas diffusion layer disposed on a surface of the cathode catalyst layer which is opposite to a surface of the cathode catalyst layer on the electrolyte membrane side, and wherein the nitrate compound is disposed in the MEGA.

First claim

Opening claim text (preview).

What is claimed is: 1 . A fuel cell comprising a MEGA and a nitrate compound, wherein the MEGA has an electrolyte membrane, an anode catalyst layer disposed on one surface of the electrolyte membrane, a cathode catalyst layer disposed on another surface of the electrolyte membrane, an anode gas diffusion layer disposed on a surface of the anode catalyst layer, the surface being opposite to a surface of the anode catalyst layer on the electrolyte membrane side, and a cathode gas diffusion layer disposed on a surface of the cathode catalyst layer, the surface being opposite to a surface of the cathode catalyst layer on the electrolyte membrane side, and wherein the nitrate compound is disposed in the MEGA. 2 . The fuel cell according to claim 1 , wherein the nitrate compound comprises at least one cation of Ce ions, Ag ions, and Co ions. 3 . The fuel cell according to claim 1 , wherein the nitrate compound is disposed in at least one place selected from the anode catalyst layer, the cathode catalyst layer, between the anode catalyst layer and the anode gas diffusion layer, and between the cathode catalyst layer and the cathode gas diffusion layer. 4 . A fuel cell system comprising: the fuel cell according to claim 1 ; a fuel gas supply means for supplying a fuel gas to the fuel cell; and an oxidant gas supply means for supplying an oxidant gas to the fuel cell.

Assignees

Inventors

Classifications

  • Reactant storage and supply, e.g. means for feeding, pipes · CPC title

  • Selection of inactive substances as ingredients for catalytic active masses, e.g. binders, fillers · CPC title

  • H01M8/1004Primary

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

  • Fuel cells · CPC title

  • Fuel cells with polymeric electrolytes · CPC title

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What does patent US2022181662A1 cover?
Provided are a fuel cell and a fuel cell system capable of suppressing deterioration of the electrolyte membrane by iron-based foreign substances with a simple structure. The fuel cell includes: a MEGA and a nitrate compound, wherein the MEGA has an electrolyte membrane, an anode catalyst layer disposed on one surface of the electrolyte membrane, a cathode catalyst layer disposed on the other s…
Who is the assignee on this patent?
Toyota Motor Co Ltd
What technology area does this patent fall under?
Primary CPC classification H01M8/1004. Mapped technology areas include Electricity.
When was this patent published?
Publication date Thu Jun 09 2022 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 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).