NDLI: Effect of Different Graphite Materials on Electrical Conductivity and Flexural Strength of Bipolar Plates Fabricated by Selective Laser Sintering

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Effect of Different Graphite Materials on Electrical Conductivity and Flexural Strength of Bipolar Plates Fabricated by Selective Laser Sintering

Content Provider	Semantic Scholar
Author	Guo, Nannan
Copyright Year	2010
Abstract	Graphite is an excellent material for bipolar plates used in Proton Exchange Membrane (PEM) fuel cell due to its great chemical resistance, but the brittle nature makes it difficult to manufacture. Selective Laser Sintering (SLS) based on layer-by-layer manufacturing technology can fabricate graphite bipolar plates with complex gas flow channels. To improve the performance of bipolar plates including electrical conductivity and flexural strength, different graphite materials (natural graphite, synthetic graphite, carbon black, and carbon fiber) were investigated to fabricate test samples. These samples then went through post processing including carbonization and infiltration. The results show that bipolar plates with electrical conductivity of 380 S/cm and flexural strength of 40 MPa are obtained from proper combinations of natural graphite and carbon fiber, which are higher than the target values set by the Department of Energy.
File Format	PDF HTM / HTML
Alternate Webpage(s)	http://sffsymposium.engr.utexas.edu/Manuscripts/2010/2010-40-Guo.pdf
Language	English
Access Restriction	Open
Subject Keyword	3-Mercaptopropionic Acid Bipolar Disorder Carbon Black Electric Conductivity Electric stimulation technique Laser Therapy, Low-Level Natural graphite Optical fiber Protons Standard sea level Synthetic intelligence viral capsid secondary envelopment
Content Type	Text
Resource Type	Article

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