Use of stainless steel for cost competitive bipolar plates in the SPFC

Makkus, R. C.; Janssen, A.H.H.; Bruijn, F.A. de; Mallant, Ronald K. A. M.

doi:10.1016/s0378-7753(99)00460-7

Cited by 244 publications

(129 citation statements)

References 3 publications

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“…Numerous research projects have been devoted to bipolar plate materials in fuel cells [6,25,32,37,50,71,72,76]. However, the number of suitable materials for PEM electrolyzers is still limited because of high requirements for corrosion resistance at the oxygen electrode, where high overpotentials are combined with low pH media of electrolyte.…”

Section: Construction Materials For High Temperature Pem Water Electrmentioning

confidence: 99%

Advanced Construction Materials for High Temperature Steam PEM Electrolysers

Nikiforov¹,

Christensen²,

Petrushina³

et al. 2012

Electrolysis

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Section: Construction Materials For High Temperature Pem Water Electrmentioning

confidence: 99%

Advanced Construction Materials for High Temperature Steam PEM Electrolysers

Nikiforov¹,

Christensen²,

Petrushina³

et al. 2012

Electrolysis

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“…Positive valence contaminant ions can occur in the membrane due to such issues as platinum and cobalt dissolution from the cathode, 46 ruthenium dissolution from the anode, 80 air impurities, 81,82 and contamination from the other PEFC components (e.g., bipolar plates). 81,83 All of these cations will ion-exchange with the protons to a certain degree and thus decrease the conductivity of the membrane. While modeling these effects is out of the purview of this chapter, a brief modeling approach is as follows.…”

Section: Other Transport Through the Membranementioning

confidence: 99%

Modeling Water Management in Polymer-Electrolyte Fuel Cells

Weber

Balliet

Gunterman

et al. 2008

Modern Aspects of Electrochemistry

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“…1.85 g/cm 3 . The filler content in the Schunk plates is in the range of 70-95 wt% and formed by compression moulding [16].…”

Section: Discussionmentioning

confidence: 94%

“…The shot size for each test sample was 50 cm 3 and conformed to ASTM 638 Type I test bars. Each bipolar plate required a shot size of 88 cm 3 , both the samples and plates were injected at pressures of 1500 bar.…”

Section: Injection Mouldermentioning

confidence: 99%

“…These two materials have been shown to be suitable in terms of conductivity, 300 S/cm [1] and 51 S/cm [2] for graphite and stainless steel, respectively. They have acceptable lifetimes of 6000 h [3] for stainless steel (limited by corrosion) and greater for graphite. Niobium-titanium-tungsten (Ni-Ti-W) and nickel-chromium (Ni-Cr) are relatively expensive [4] and do not offer sufficient benefit for their increase in cost and aluminium although cheap is not sufficiently corrosion resistant [5].…”

Section: Introductionmentioning

confidence: 99%

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Polyethylene-carbon material for polymer electrolyte membrane fuel cell bipolar plates

Greenwood

Chen

Thring

2008

Proceedings of the Institution of Mechanical Engineers, Part L:

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Bipolar plates are the interconnects between cells within a fuel cell stack. They must be highly electrically conductive in order to maximize the voltage across the stack and must be highly thermally conductive to aid cooling of the stack. Traditionally, bipolar plates are made from graphite or stainless steel; both have drawbacks such as low mechanical strength and corrosion problems, respectively. In order to overcome the problems associated with these common materials and to improve on the electrical and thermal conductivity aspects as well as decrease costs and improve manufacturability, a mixture of polyethylene and carbon was investigated. Composites of polyethylene and carbon were mixed using a two-roll mill and injection moulded. Micrographs of the polyethylene-carbon (PE-C) blends show how the microstructure of the polyethylene network and carbon particles provide increased mechanical properties but further addition of carbon leads to the degradation of these properties. Increasing carbon content led to an ever-increasing electrical conductivity. The material was tested for tensile and flexural properties, resulting in a maximum tensile and flexural strength of ∼24 MPa (at 26 wt% carbon in polyethylene) and ∼35 MPa (at 40 wt% carbon in polyethylene), respectively. The samples displayed electrical conductivity, with a maximum of 1.19 S/cm in-plane and 1.05 S/cm throughplane being achieved at a carbon loading of 65 wt%. The PE-C composite displayed low densities of 1.56 g/cm 3 and desirable mechanical strength close to the US Department of Energy target level of 44.26 MPa for flexural strength. It was concluded that PE-C composites with different types of carbon and carbon fibres should be tested in order to reach the electrical conductivity target levels of 100 S/cm.

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Use of stainless steel for cost competitive bipolar plates in the SPFC

Cited by 244 publications

References 3 publications

Advanced Construction Materials for High Temperature Steam PEM Electrolysers

Advanced Construction Materials for High Temperature Steam PEM Electrolysers

Modeling Water Management in Polymer-Electrolyte Fuel Cells

Polyethylene-carbon material for polymer electrolyte membrane fuel cell bipolar plates

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