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CLC number: TN911.5

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Received: 2005-05-09

Revision Accepted: 2005-07-26

Crosschecked: 0000-00-00

Cited: 7

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Journal of Zhejiang University SCIENCE A 2005 Vol.6 No.10 P.1080~1083

10.1631/jzus.2005.A1080


Influence of graphite particle size and its shape on performance of carbon composite bipolar plate


Author(s):  ZHANG Jie, ZOU Yan-wen, HE Jun

Affiliation(s):  Institute of Nuclear Energy and New Energy Technology, Tsinghua University, Beijing 100084, China

Corresponding email(s):   zhang8jie@mail.tsinghua.edu.cn, zouyw@mail.tsinghua.edu.cn, hejun@mail.tsinghua.edu.cn

Key Words:  Spherical graphite, Fuel cell, Bipolar plate, Conductive composite materials


ZHANG Jie, ZOU Yan-wen, HE Jun. Influence of graphite particle size and its shape on performance of carbon composite bipolar plate[J]. Journal of Zhejiang University Science A, 2005, 6(10): 1080~1083.

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%A HE Jun
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T1 - Influence of graphite particle size and its shape on performance of carbon composite bipolar plate
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PB - Zhejiang University Press & Springer
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DOI - 10.1631/jzus.2005.A1080


Abstract: 
bipolar plates for proton exchange membrane fuel cell (PEMFC) where polymer is used as binder and graphite is used as electric filler were prepared by means of compression molding technology. Study on the effects of graphite particle size and shape on the bipolar plate performance, such as electrical conductivity, strength, etc. showed that with decrease of graphite particle size, bulk electrical conductivity and thermometric conductivity decreased, but that flexural strength was enhanced. After spherical graphite occurrence in flake-like form, the flexural strength of the bipolar plate was enhanced, electrical conductivity increased but thermal conductivity decreased in direction paralleling pressure direction, and both electrical conductivity and thermometric conductivity reduced in direction perpendicular to pressure direction.

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Reference

[1] Chalk, S.G., Miller, J.F., Wagner, F.W., 2000. Challenges for fuel cells in transport applications. Journal of Power Sources, 86:40-45.

[2] Lee, S.J., Mukergee, S., 1998. Effects of Nafion impregnation on performances of PEMFC electrodes. Electrochimica Acta, 43(24):3693-3701.

[3] Davies, D.P., Adcock, P.L., Turpin, M., Rowen, S.J., 2000. Bipolar plate materials for solid polymer fuel cells. Journal of Applied Electrochemistry, 30(1):101-105.

[4] Kirchain, B.O.R., Roth, R., 2002. Technical cost analysis for PEM fuel cells. Journal of Power Source, 109(1):71-75.

[5] Borup, R.L., Vanderborgh, N.E., 1995. Design and testing criteria for bipolar plate materials for PEM fuel cell application. Mater. Res. Soc. Symp. Proc., 393:151-155.

[6] Scholta, J., Rohland, B., Trapp, V., Focken, U., 1999. Investigation on novel low-cost graphite composite bipolar plate. Journal of Power Source, 84:231-234.

[7] Zou, Y.W., Zhang, J., He, J., Yong, P.Z., Tang, Y.P., Sun, B., Qiu, X.L., 2004. Study on the composite bipolar plate for PEMFC. New Carbon Materials, 19(4):303-307.

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