Anion conducting material and cell
US-2015364790-A1 · Dec 17, 2015 · US
Polymer electrolyte membrane, method for producing polymer electrolyte membrane, and solid polymer fuel cell
US9312556B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9312556-B2 |
| Application number | US-200913055228-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 10, 2009 |
| Priority date | Jul 23, 2008 |
| Publication date | Apr 12, 2016 |
| Grant date | Apr 12, 2016 |
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Abstract
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A polymer electrolyte membrane having good resistance to radicals is provided. A polymer electrolyte membrane is characterized of containing organic/inorganic hybrid particles in which a surface of an inorganic particle, which is a radical scavenger, is modified with organic compounds in a polymer electrolyte. As the organic/inorganic hybrid particles in which a surface of an inorganic particle is modified with organic compounds, a radical scavenger prepared by reacting inorganic particles with organic compounds in a solvent by supercritical or subcritical hydrothermal synthesis is preferred.
First claim
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The invention claimed is: 1. A polymer electrolyte membrane containing, in a polymer electrolyte, organic/inorganic hybrid particles in which a surface of an inorganic particle, which is a radical scavenger, is modified with one or more organic compounds selected from C3-20 fluorocarbon-based carboxylic acid. 2. The polymer electrolyte membrane according to claim 1 , wherein the inorganic particle is a metal oxide particle having a mean particle size of 1 μm or less. 3. The polymer electrolyte membrane according to claim 1 , wherein the organic compounds bind to the surface of the inorganic particle via a bond selected from the group consisting of an ether linkage, an ester linkage, an N-atom-mediated bond, an S atom-mediated bond, a metal-C— bond, a metal-C═ bond, and a metal-(C═O)— bond. 4. The polymer electrolyte membrane according to claim 1 , wherein the organic compounds in the organic/inorganic hybrid particles in which the surface of the inorganic particle is modified with the organic compounds are further having functional groups. 5. The polymer electrolyte membrane according to claim 1 , wherein the polymer electrolyte is prepared by alkaline hydrolysis and acid treatment of a polymer electrolyte precursor that exerts proton conductivity by alkaline hydrolysis and acid treatment. 6. A solid polymer fuel cell comprising the polymer electrolyte membrane according to claim 1 .
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Manufacturing or production processes characterised by the final manufactured product · CPC title
Cross-Sectional Technologies · mapped topic
Organic polymers · CPC title
Cross-Sectional Technologies · mapped topic
by chemical reactions, e.g. in situ polymerisation or in situ crosslinking · CPC title
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- What does patent US9312556B2 cover?
- A polymer electrolyte membrane having good resistance to radicals is provided. A polymer electrolyte membrane is characterized of containing organic/inorganic hybrid particles in which a surface of an inorganic particle, which is a radical scavenger, is modified with organic compounds in a polymer electrolyte. As the organic/inorganic hybrid particles in which a surface of an inorganic particle…
- Who is the assignee on this patent?
- Takeshita Shinya, Suzuki Hiroshi, Toyota Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01M8/1048. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Apr 12 2016 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).