Composite Materials Based on Thermally Expanded Graphite for Fuel Cell’s Bipolar Plates

The composite materials based on a thermosetting binder mark SFP and thermally expanded graphite and containing 50–70% of the filler are prepared by the method of hot pressing. It is studied how the physicochemical and mechanical characteristics of the composite depend on the method of filler introd...

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Bibliographic Details
Published inRussian journal of electrochemistry Vol. 59; no. 12; pp. 1039 - 1046
Main Authors Eroshenko, V. D., Andreeva, V. E., Tokarev, D. V., Medennikov, O. A., Klushin, V. A., Fesenko, L. N., Smirnova, N. V.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.12.2023
Springer Nature B.V
Subjects
Chemistry
Chemistry and Materials Science
Composite materials
Contact resistance
Corrosion currents
Corrosion resistance
Electrochemistry
Energy conversion efficiency
Fillers
Fuel cells
Galvanic corrosion
Graphite
Hot pressing
Mechanical properties
Physical Chemistry
electroconductive composite material
fuel cell
bipolar plate
thermally expanded graphite
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Summary:The composite materials based on a thermosetting binder mark SFP and thermally expanded graphite and containing 50–70% of the filler are prepared by the method of hot pressing. It is studied how the physicochemical and mechanical characteristics of the composite depend on the method of filler introduction. The materials prepared by mixing air-dry components are shown to exhibit the high conductivity (up to 195 S/cm) and strength (above 25 mPa), the low interface contact resistance (less than 10 mΩ cm 2 ), and the corrosion current not exceeding 1 µA/cm 2 , which allows the high efficiency of energy conversion in SPFC to be reached.
ISSN:1023-1935
1608-3342
DOI:10.1134/S1023193523120054