Fuel cell catalyst layer, and fuel cell
US-2017104222-A1 · Apr 13, 2017 · US
Fuel cell catalyst layer, and fuel cell
US10333153B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10333153-B2 |
| Application number | US-201615287831-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 7, 2016 |
| Priority date | Oct 9, 2015 |
| Publication date | Jun 25, 2019 |
| Grant date | Jun 25, 2019 |
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Abstract
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The fuel cell catalyst layer has: a catalyst including a carbon support having pores with a pore diameter of from 1 nm to 5 nm and a catalyst metal supported within the pores of the carbon support; and an ionomer having a glass transition temperature equal to or greater than 160° C.
First claim
Opening claim text (preview).
What is claimed is: 1. A fuel cell catalyst layer comprising: a catalyst comprising a carbon support comprising pores with a pore diameter of from 1 nm to 5 nm, and a catalyst metal supported at least within the pores of the carbon support having the pore diameter of from 1 nm to 5 nm; and an ionomer having a glass transition temperature equal to or greater than 160° C., wherein a pore volume of the pores with the pore diameter of from 1 nm to 5 nm is equal to or greater than 15.0 mL/g, wherein the carbon support further comprises pores with a pore diameter greater than 5 nm and 10 nm or less, and wherein a pore volume of the pores with the pore diameter greater than 5 nm and 10 nm or less is from 1 mL/g to 10 mL/g. 2. The fuel cell catalyst layer according to claim 1 , wherein the ionomer has an oxygen permeability equal to or greater than 2.0×10-14 mol/m/sec/Pa in an environment at a temperature of 800 C and a relative humidity of 30%. 3. A fuel cell comprising the fuel cell catalyst layer according to claim 1 .
Assignees
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Classifications
Porous electrodes · CPC title
Binders · CPC title
Fuel cells with polymeric electrolytes · CPC title
- H01M4/926Primary
on carbon or graphite · CPC title
Polymeric electrolyte materials · CPC title
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Frequently asked questions
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- What does patent US10333153B2 cover?
- The fuel cell catalyst layer has: a catalyst including a carbon support having pores with a pore diameter of from 1 nm to 5 nm and a catalyst metal supported within the pores of the carbon support; and an ionomer having a glass transition temperature equal to or greater than 160° C.
- Who is the assignee on this patent?
- Toyota Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01M4/926. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jun 25 2019 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 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).