Method of manufacturing reinforced electrolyte membrane, method of manufacturing membrane electrode assembly, and membrane electrode assembly

US9793565B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9793565-B2
Application numberUS-201514908172-A
CountryUS
Kind codeB2
Filing dateMar 6, 2015
Priority dateMar 14, 2014
Publication dateOct 17, 2017
Grant dateOct 17, 2017

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 object is to provide a technique that improves the power generation performance, while enhancing the strength of a reinforced electrolyte membrane. There is provided a method of manufacturing a reinforced electrolyte membrane that comprises a first reinforcing film on one surface of an electrolyte membrane and a second reinforcing film on the other surface of the electrolyte membrane. The method of manufacturing the reinforced electrolyte membrane comprises (a) process of thermally compressing the first reinforcing film and the second reinforcing film to the electrolyte membrane. In the process (a), a number of times of thermally compressing the second reinforcing film to the electrolyte membrane is less than a number of times of thermally compressing the first reinforcing film to the electrolyte membrane.

First claim

Opening claim text (preview).

The invention claimed is: 1. A membrane electrode assembly, comprising: a reinforced electrolyte membrane that comprises an electrolyte membrane, a first reinforcing film placed on one surface of the electrolyte membrane and a second reinforcing film placed on the other surface of the electrolyte membrane; an anode catalyst layer that is placed on a surface of a side of the reinforced electrolyte membrane on which the first reinforcing film is placed; and a cathode catalyst layer that is placed on a surface of a side of the reinforced electrolyte membrane on which the second reinforcing film is placed, wherein the second reinforcing film has a lower surface elastic modulus than a surface elastic modulus of the first reinforcing film.

Assignees

Inventors

Classifications

  • Cross-Sectional Technologies · mapped topic

  • H01M8/1004Primary

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

  • Batteries, accumulators or fuel cells (battery cases B29L2031/7146) · CPC title

  • by heating, with or without pressure · CPC title

  • Membranes, diaphragms · 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 US9793565B2 cover?
An object is to provide a technique that improves the power generation performance, while enhancing the strength of a reinforced electrolyte membrane. There is provided a method of manufacturing a reinforced electrolyte membrane that comprises a first reinforcing film on one surface of an electrolyte membrane and a second reinforcing film on the other surface of the electrolyte membrane. The me…
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 Tue Oct 17 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). 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).