Highly conductive composites for fuel cell flow field plates and bipolar plates
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Jul 5, 2007
app pub date -
Jan 4, 2006
filing date -
Jan 4, 2006
priority date (Note) -
Abandoned
status (Latency Note)
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Importance

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Abstract
This invention provides a fuel cell flow field plate or bipolar plate having flow channels on faces of the plate, comprising an electrically conductive polymer composite. The composite is composed of (A) at least 50% by weight of a conductive filler, comprising at least 5% by weight reinforcement fibers, expanded graphite platelets, graphitic nano-fibers, and/or carbon nano-tubes; (B) polymer matrix material at 1 to 49.9% by weight; and (C) a polymer binder at 0.1 to 10% by weight; wherein the sum of the conductive filler weight %, polymer matrix weight % and polymer binder weight % equals 100% and the bulk electrical conductivity of the flow field or bipolar plate is at least 100 S/cm. The invention also provides a continuous process for cost-effective mass production of the conductive composite-based flow field or bipolar plate.
First Claim
all claims..Other Claims data not available
Family
- No Family data available.
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
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NANOTEK INSTRUMENTS INC | 1240 MCCOOK AVE DAYTON OH 45404 |
International Classification(s)

- 2006 Application Filing Year
- C08J Class
- 478 Applications Filed
- 232 Patents Issued To-Date
- 48.54 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Jang, Bor Z | Centerville, OH | 686 | 16010 |
# of filed Patents : 686 Total Citations : 16010 | |||
Song, Lulu | Centerville, OH | 35 | 1206 |
# of filed Patents : 35 Total Citations : 1206 | |||
Zhamu, Aruna | Centerville, OH | 526 | 12868 |
# of filed Patents : 526 Total Citations : 12868 |
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Patent Citation Ranking
- 14 Citation Count
- C08J Class
- 57.74 % this patent is cited more than
- 18 Age
Forward Cite Landscape
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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