Preparation of electroconductive thermally expanded graphite for PEM fuel cells´polymer composite biopolar plates

0575185 - ÚSMH 2024 RIV TR eng C - Conference Paper (international conference)
Darabut, A.M. - Lobko, Y. - Yakovlev, Y. - Rodríguez, M.G. - Veltruská, K. - Kuš, P. - Nováková, J. - Vorokhta, Maryna - Kopecký, V. - Procházka, M. - Dopita, M. - Matolínová, I. - Matolín, V.
Preparation of electroconductive thermally expanded graphite for PEM fuel cells´polymer composite biopolar plates.
Proceedings of WHEC 2022 - 23rd World Hydrogen Energy Conference: Bridging Continents by H2. Istanbul: Internationa Association for Hydrogen Energy, 2022 - (Dincer, I.; Colpan, C.; Ezan, M.), s. 666-668. ISBN 978-625000843-0.
[World Hydrogen Energy Conference /23./. Istanbul (TR), 26.06.2022-30.06.2022]
Institutional support: RVO:67985891
Keywords : Bipolar plates * Carbon fillers * PEM fuel cells * Polymer composites * Thermally expanded graphite
OECD category: Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)

The thermally expanded graphites (TEGs) as fillers for PEM bipolar plates were obtained. The influence of the air and nitrogen atmosphere, as well as the different temperatures on the structure and properties of TEGs were investigated. The morphology, porous structure, chemical composition of the TEGs were analysed using SEM, XRD, BET, EDX, and XPS. It was shown that the obtained TEGs have three times higher electrical conductivity, comparable with commercial graphites. The obtained TEG is used as filler in the preparation of the polymer composites bipolar plates with electrical conductivity reaching DOE targets.
Permanent Link: https://hdl.handle.net/11104/0346264