Corrosion and thermal stability of multi-walled carbon nanotube-graphite-acrylonitrile-butadiene-styrene composite bipolar plates for polymer electrolyte membrane fuel cells

► Development of ABS-graphite-MWNT composite bipolar plates. ► EIS successfully applies for understanding the corrosion mechanism of the composites. ► MWNT concentration strongly affects the corrosion behavior of the ABS-graphite composites. ► The best balance of properties was for the ABS-graphite composite with addition of 2 wt.% MWNT.