Reversal tolerant membrane electrode assembly for a fuel cell
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United States of America Patent
Stats
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Feb 16, 2016
Grant Date -
Jun 4, 2015
app pub date -
Feb 6, 2015
filing date -
Jan 8, 2009
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A membrane electrode assembly (MEA) for a fuel cell which exhibits enhanced reversal tolerance. In particular, a layer of iridium or an iridium compound, preferably metallic iridium or iridium oxide supported on TiO2, is provided on the anode to electrolyze available water and pass the majority of the current during a reversal of the fuel cell, thereby preventing damage to the MEA. The iridium or iridium compound is applied to an anode structure according to a predetermined pattern, with only part of the anode active area containing Ir. The parts of the MEA that do not contain Ir are not expected to suffer degradation from Ir cross-over, so that overall degradation of the cell will be diminished. Having less precious metals will also translate into less cost.
First Claim
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Family
Country | kind | publication No. | Filing Date | Type | Sub-Type |
---|---|---|---|---|---|
EP | A1 | EP2374178 | Jan 08, 2010 | Patent | Application |
Type : Patent Sub-Type : Application | |||||
APPLICATION PUBLISHED WITH SEARCH REPORT | REVERSAL TOLERANT MEMBRANE ELECTRODE ASSEMBLY FOR A FUEL CELL | Oct 12, 2011 | |||
US | B2 | US8968960 | Jan 08, 2010 | Patent | Grant |
Type : Patent Sub-Type : Grant | |||||
GRANTED PATENT AS SECOND PUBLICATION | Reversal tolerant membrane electrode assembly for a fuel cell | Mar 03, 2015 | |||
WO | A1 | WO2010080975 | Jan 08, 2010 | Patent | Application |
Type : Patent Sub-Type : Application | |||||
INTERNATIONAL APPLICATION PUBLISHED WITH INTERNATIONAL SEARCH REPORT | REVERSAL TOLERANT MEMBRANE ELECTRODE ASSEMBLY FOR A FUEL CELL | Jul 15, 2010 | |||
CN | B | CN102272991 | Jan 08, 2010 | Patent | Grant |
Type : Patent Sub-Type : Grant | |||||
GRANTED PATENT FOR INVENTION | For the resistance to reverse property membrane electrode assembly of fuel cell | Sep 09, 2015 |
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
FORD MOTOR COMPANY | ONE AMERICAN ROAD DEARBORN MI 48126 | |
DAIMLER AG | STUTTGART GERMANY STUTTGART BADEN-WURTTEMBERG |
International Classification(s)

- 2015 Application Filing Year
- H01M Class
- 5536 Applications Filed
- 4391 Patents Issued To-Date
- 79.32 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Haas, Herwig | New Westminster, CA | 9 | 17 |
# of filed Patents : 9 Total Citations : 17 | |||
Kundu, Sumit | Burnaby, CA | 6 | 19 |
# of filed Patents : 6 Total Citations : 19 | |||
Zhang, Hao | Burnaby, CA | 1170 | 5565 |
# of filed Patents : 1170 Total Citations : 5565 |
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Patent Citation Ranking
- 1 Citation Count
- H01M Class
- 16.01 % this patent is cited more than
- 9 Age
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Fee | Large entity fee | small entity fee | micro entity fee | due date |
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11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Aug 16, 2027 |
Fee | Large entity fee | small entity fee | micro entity fee |
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Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
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