Method for producing carrier for electrode catalyst, precursor of carrier for electrode catalyst, and carrier for electrode catalyst, comprising same
US-12057587-B2 · Aug 6, 2024 · US
Method of fabricating membrane electrode assembly and gas diffusion layer
US8999599B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8999599-B2 |
| Application number | US-201213812233-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 17, 2012 |
| Priority date | Jul 19, 2011 |
| Publication date | Apr 7, 2015 |
| Grant date | Apr 7, 2015 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
A method of fabricating a membrane electrode assembly, comprising: obtaining a mixture by mixing and kneading electrically conductive particles, a polymer resin, a surfactant, and a dispersion solvent (S 1 ); obtaining a sheet-like mixture by rolling out and shaping the mixture (S 2 ); obtaining a carbon sheet by heat-treating the sheet-like mixture at a first heat treatment temperature such that the surfactant and the dispersion solvent are removed from the sheet-like mixture (S 3 ); obtaining a dispersion liquid by mixing electrically conductive particles, a polymer resin, a surfactant, and a dispersion solvent (S 4 ); forming, on the carbon sheet, a dispersion liquid layer thinner than the carbon sheet by forming and drying a coating of the dispersion liquid on the carbon sheet (S 5 ); obtaining a gas diffusion layer in which a carbon layer is formed on the carbon sheet, by heat-treating the carbon sheet on which the dispersion liquid layer is formed at a second heat treatment temperature lower than the first heat treatment temperature such that the surfactant and the dispersion solvent are removed from the dispersion liquid layer (S 6 ); and stacking a catalyst layer and an electrolyte membrane in said order on the carbon layer (S 7 ).
First claim
Opening claim text (preview).
The invention claimed is: 1. A method of fabricating a membrane electrode assembly, the method comprising: obtaining a mixture by mixing first electrically conductive particles, a first polymer resin, a first surfactant, and a first dispersion solvent; obtaining a sheet-like mixture by shaping the mixture; obtaining a carbon sheet by heat-treating the sheet-like mixture at a first heat treatment temperature; obtaining a dispersion liquid by mixing second electrically conduct…
Assignees
Inventors
Classifications
Cross-Sectional Technologies · mapped topic
Cross-Sectional Technologies · mapped topic
Electricity · mapped topic
Electricity · mapped topic
- H01M8/1004Primary
Electricity · mapped topic
Patent family
Related publications grouped by family.
External sources
Next steps
Free tools are coming soon. Tell us what you want to track and we'll notify you.
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US8999599B2 cover?
- A method of fabricating a membrane electrode assembly, comprising: obtaining a mixture by mixing and kneading electrically conductive particles, a polymer resin, a surfactant, and a dispersion solvent (S 1 ); obtaining a sheet-like mixture by rolling out and shaping the mixture (S 2 ); obtaining a carbon sheet by heat-treating the sheet-like mixture at a first heat treatment temperature such th…
- Who is the assignee on this patent?
- Shintani Haruhiko, Ueda Toshifumi, Yamauchi Masaki, and 1 more
- 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 Apr 07 2015 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).