High-performance polybenzoxazine based composites PEMFC bipolar plates with a multi-layer structure for surface enrichment of conductive phase

Current status of research on composite bipolar plates for proton exchange membrane fuel cells (PEMFCs): nanofillers and structure optimization

“…Structure optimization through reasonable methods can improve the performance of composite bipolar plates without changing the graphite/resin raw material ratio. At present, the main directions of structural optimization are: (1) optimization of the dispersion pattern of graphite/ resin, [104][105][106][107] i.e., through physical or chemical means, articially control the dispersion pattern between graphite/resin phases, so that the composite bipolar plate has a strategic distribution of graphite-resin, (2) optimization of the electrically conductive network of the composite bipolar plate: [108][109][110] through the design of electrically conductive paths of the composite bipolar plate, so that the composite bipolar plate has the overall electrically conductive network structure. (3) Interfacial modication and surface functionalization of the llers of the composite bipolar plate 111,112 to enhance the bonding force between the interfaces of the composite bipolar plate and the wettability between the graphite-resin.…”

“…68 Huang Q. 108 et al prepared composite bipolar plates with a conductive network structure using PBA and EG. Thanks to PBA's excellent uidity and low viscosity, it can effectively ow during the molding process so that the conductive graphite can be connected.…”