Cristin-resultat-ID: 1105436
Sist endret: 9. oktober 2014, 15:19
NVI-rapporteringsår: 2013
Resultat
Vitenskapelig artikkel
2014

Carbon-polymer composite coatings for PEM fuel cell bipolar plates

Bidragsytere:
  • Hans Husby
  • Ole Edvard Kongstein
  • Anders Ødegård og
  • Frode Seland

Tidsskrift

International Journal of Hydrogen Energy
ISSN 0360-3199
e-ISSN 1879-3487
NVI-nivå 1

Om resultatet

Vitenskapelig artikkel
Publiseringsår: 2014
Publisert online: 2013
Trykket: 2014
Volum: 39
Hefte: 2
Sider: 951 - 957
Open Access

Importkilder

Scopus-ID: 2-s2.0-84890436619

Beskrivelse Beskrivelse

Tittel

Carbon-polymer composite coatings for PEM fuel cell bipolar plates

Sammendrag

A carbon-polymer composite coating on stainless steel 316L substrates was investigated for the use as bipolar plate material for polymer electrolyte membrane fuel cells. The coating consisted of 45 vol% graphite, 5 vol% carbon black and 50 vol% epoxy binder. The coating was applied by a spraying technique followed by hot-pressing while the binder cured. An interfacial contact resistance of 9.8 mΩ cm2 at a compaction pressure of 125 N cm−2 was measured. Ex-situ electrochemical tests showed that the carbon-polymer composite coated plates had smaller increases in the interfacial contact resistance after polarization than bare stainless steel plates at potentials of 0.0191 and 0.6191 VSHE. At 1.0 VSHE, the resistance increased similarly for both the coated plate and the bare stainless steel plate, and reached unacceptable values. The porosity of the coating was estimated with scanning electron microscope imaging of the cross-section of the coating to be about 50%.

Bidragsytere

Hans Husby

  • Tilknyttet:
    Forfatter
    ved Institutt for materialteknologi ved Norges teknisk-naturvitenskapelige universitet

Ole Edvard Kongstein

  • Tilknyttet:
    Forfatter
    ved Bærekraftig energiteknologi ved SINTEF AS

Anders Ødegård

  • Tilknyttet:
    Forfatter
    ved Bærekraftig energiteknologi ved SINTEF AS

Frode Seland

  • Tilknyttet:
    Forfatter
    ved Institutt for materialteknologi ved Norges teknisk-naturvitenskapelige universitet
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