Relief design for fuel cell plates
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United States of America Patent
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Dec 26, 2017
Issued Date -
N/A
app pub date -
Mar 13, 2015
filing date -
Mar 23, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
Flow field plates in solid polymer electrolyte fuel cells can be subject to ice blockages in certain areas during freeze start-up, e.g. the backfeed ports and slots used in some flow field plate designs which connect an outlet plenum channel for a reactant to its outlet. By incorporating a similar and adjacent relief backfeed port, slot and plenum channel arrangement in which the relief plenum channel is separated from the outlet plenum channel by a landing, a relief outlet for the reactant is provided through the adjacent gas diffusion layer.
First Claim
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| Country | kind | publication No. | Filing Date |
|---|---|---|---|
| EP | B1 | EP3123546 | Mar 13, 2015 |
| CN | B | CN106415904 | Mar 13, 2015 |
| WO | A1 | WO2015145233 | Mar 13, 2015 |
International Classification(s)
- 2015 Application Filing Year
- H01M Class
- 5536 Applications Filed
- 4391 Patents Issued To-Date
- 79.32 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- H01M Class
- 0 % this patent is cited more than
- 8 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Jun 26, 2025 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jun 26, 2029 |
