Electrical and mechanical properties of polypropylene/epoxy blend-graphite/carbon black composite for proton exchange membrane fuel cell bipolar plate

Alo, Oluwaseun Ayotunde; Otunniyi, Iyiola Olatunji; Pienaar, HCvZ; Sadiku, Emmanuel Rotimi

doi:10.1016/j.matpr.2020.03.642

Cited by 25 publications

(20 citation statements)

References 16 publications

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“…CB, CNTs, and Gr are usually used as minor fillers in CPC BPs, while G is mostly used as the primary filler [24, 38, 134]. This is due to the high cost of CNTs and Gr and much lower capability for conductivity improvement of CB compared to G. In addition, G exhibits high electrical conductivity and relatively high processability (due to its lubricating effect), which has made it the standard option for meeting electrical conductivity requirement of CPC BPs at a reasonable cost [89].…”

Section: Effect Of Processing Route On Properties Of Cpc Bpsmentioning

confidence: 99%

Processing methods for conductive polymer composite bipolar plates: Effect on plate quality and performance

2023

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Conductive polymer composites (CPCs) have been identified as viable replacements for graphite and metals for polymer electrolyte membrane fuel cell (PEMFC) bipolar plates (BPs). One important factor, apart from composite formulation, that affects the quality and properties of CPC BPs is the processing route. Therefore, understanding the possible processing methods for different matrix-filler combinations and their effects on the quality and properties of the plates can help in controlling and improving the final performance of BPs. This paper reviews the blending and molding techniques for CPC BPs, with a focus on relationship between formulation and processing method. The effects of processing route and conditions on microstructural features of CPC BPs, which affect the performance of the plates are also discussed. Finally, directions for further studies with potential to advance the development of quality and high-performance CPC BPs are highlighted. Identified key areas for further research include control of filler orientation to improve through-plane conductivity, correlation between processing parameters and dimensional accuracy of molded plates, and additive manufacturing of composite BPs.

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Section: Effect Of Processing Route On Properties Of Cpc Bpsmentioning

confidence: 99%

Processing methods for conductive polymer composite bipolar plates: Effect on plate quality and performance

2023

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“…Graphite-based composite BPs are expected to become one of the most widely used BPs in PEMFC applications in the future. 177–179 In conclusion, each material has advantages and disadvantages, making it difficult to determine which BP material is the best. However, it can be concluded that improving different electrode plate materials focuses on cost reduction and durability improvement, which are also inevitable requirements for PEMFCs to enter the commercial market.…”

Section: Bipolar Plates (Bps) In Pemfcs With High Specific Power Densitymentioning

confidence: 99%

Designing proton exchange membrane fuel cells with high specific power density

Zhao

Tao

et al. 2023

J. Mater. Chem. A

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“…[ 1–5 ] BPs ensure the reactants' distribution, electron transfer, heat, and by‐product removal in PEMFCs. [ 1 ] Graphite and composite BPs, composed of carbon‐based conductive fillers such as graphite or carbon black (CB) in a thermoset resin or thermoplastics, [ 5–7 ] are an attractive option for PEMFCs due to their low‐cost, easy processability, and resistance to corrosion. [ 1 ] However, besides being brittle and bulky, they also suffer from a lower electrical conductivity than metallic BPs.…”

Section: Introductionmentioning

confidence: 99%

“…Husby et al have developed a composite coating solution [ 4 ] inspired by the graphite‐CB composite BP strategy. [ 5–7 ] Nevertheless, the developed route is time and energy‐consuming, notably due to the large amount of solvent involved (up to 95 vol% of xylene). [ 4 ] Moreover, after application, the composite coating was pressed (over 100 N·cm −2 ) and cured (ca.…”

Section: Introductionmentioning

confidence: 99%

Atmospheric plasma deposition of conductive and corrosion‐resistant composite coatings for proton exchange membrane fuel cell bipolar plates

Chemin

Frari

Ghahramanzadehasl

et al. 2023

Plasma Processes & Polymers

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The straightforward synthesis and application of conductive and corrosion‐protective composite coatings suitable for the preparation of bipolar plates of proton exchange membrane fuel cells (PEMFCs) are achieved by a scalable and solvent‐free atmospheric plasma deposition process. Small three‐dimensional (3D) carbon black nanoparticles and large two‐dimensional (2D) natural graphite flakes are investigated independently and together as conductive fillers. It is demonstrated that the dual‐sized conductive fillers strategy traditionally used for the preparation of composite bipolar plates is not transposable for the proposed atmospheric plasma deposition process. Only the composite coatings prepared from large 2D natural graphite flakes enable a significant decrease of the corrosion current in simulated proton exchange membrane fuel cell conditions while ensuring interfacial contact resistance in the order of several tens of mΩ·cm2.

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Electrical and mechanical properties of polypropylene/epoxy blend-graphite/carbon black composite for proton exchange membrane fuel cell bipolar plate

Cited by 25 publications

References 16 publications

Processing methods for conductive polymer composite bipolar plates: Effect on plate quality and performance

Processing methods for conductive polymer composite bipolar plates: Effect on plate quality and performance

Designing proton exchange membrane fuel cells with high specific power density

Atmospheric plasma deposition of conductive and corrosion‐resistant composite coatings for proton exchange membrane fuel cell bipolar plates

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