Method for stopping fuel cell system and fuel cell system
US-2015380753-A1 · Dec 31, 2015 · US
Process to recover performance of fuel cell catalysts
US9012102B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9012102-B2 |
| Application number | US-201113210739-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 16, 2011 |
| Priority date | Aug 16, 2011 |
| Publication date | Apr 21, 2015 |
| Grant date | Apr 21, 2015 |
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Abstract
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Disclosed herein are processes for recovering performance of fuel cells by recovering fuel cell catalyst activity and methods of testing the durability and activity performance of fuel cells. One catalyst recovery process disclosed herein for a fuel cell having a membrane electrode assembly comprises operating the fuel cell for a first recovery cycle with fuel gas supplied to an anode of the fuel cell and an oxidant supplied to a cathode of the fuel cell while drawing a current from the fuel cell at steady state throughout the first recovery cycle, the first recovery cycle having a predetermined time period. The fuel cell has reached end of life due in part to intermittent use prior to operating the fuel cell for the first recovery cycle. A life of the fuel cell improves when the first recovery cycle is complete.
First claim
Opening claim text (preview).
What is claimed is: 1. A catalyst recovery process for a fuel cell having a membrane electrode assembly comprising: detecting a predetermined end of life state of the fuel cell during normal operation of the fuel cell, the normal operation being while the fuel cell is providing a variable load to a device in response to varying power needs of the device as operated; and in response to detecting the predetermined end of life state, operating a recovery device to perform a first r…
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Cross-Sectional Technologies · mapped topic
Cross-Sectional Technologies · mapped topic
Electricity · mapped topic
Electricity · mapped topic
- H01M8/04223Primary
Electricity · mapped topic
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- What does patent US9012102B2 cover?
- Disclosed herein are processes for recovering performance of fuel cells by recovering fuel cell catalyst activity and methods of testing the durability and activity performance of fuel cells. One catalyst recovery process disclosed herein for a fuel cell having a membrane electrode assembly comprises operating the fuel cell for a first recovery cycle with fuel gas supplied to an anode of the fu…
- Who is the assignee on this patent?
- Han Taehee, Dale Nilesh, Adjemian Kevork, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification H01M8/04223. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Apr 21 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).