Studies on the physical and electrochemical properties of Ni-P coating on commercial aluminum as bipolar plate in PEMFC

González-Gutiérrez, A. G.; Pech‐Canul, M. A.; Chan-Rosado, G.; Sebastián, P.J.

doi:10.1016/j.fuel.2018.08.104

Cited by 44 publications

(20 citation statements)

References 33 publications

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“…Other materials, which are commonly employed in renewable industries nowadays are polymer composites, given that they are recyclable, have high mechanical properties, possess electrical conductivity, and have excellent thermal properties [5,6,7]. As with fuel cell applications, these polymer composite materials are generally fabricated as bipolar plate components, which are applied in polymer electrolyte membrane fuel cells (PEMFCs) [8,9,10].…”

Section: Introductionmentioning

confidence: 99%

Electrical Conductivity Performance of Predicted Modified Fibre Contact Model for Multi-Filler Polymer Composite

et al. 2019

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Polymer composites have been extensively fabricated given that they are well-fitted for a variety of applications, especially concerning their mechanical properties. However, inadequate outcomes, mainly regarding their electrical performance, have limited their significant potential. Hence, this study proposed the use of multiple fillers, with different geometries, in order to improve the electrical conductivity of a polymer composite. The fabricated composite was mixed, using the ball milling method, before being compressed by a hot press machine at 3 MPa for 10 min. The composite plate was then measured for both its in-plane and through-plane conductivities, which were 3.3 S/cm, and 0.79 S/cm, respectively. Furthermore, the experimental data were then verified using a predicted electrical conductivity model, known as a modified fibre contact model, which considered the manufacturing process, including the shear rate and flow rate. The study indicated that the predicted model had a significant trend and value, compared to the experimental model (0.65 S/cm for sample S1). The resultant fabricated composite materials were found to possess an excellent network formation, and good electrical conductivity for bipolar plate application, when applying compression pressure of 3 MPa for 10 min.

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Section: Introductionmentioning

confidence: 99%

Electrical Conductivity Performance of Predicted Modified Fibre Contact Model for Multi-Filler Polymer Composite

et al. 2019

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“…Extensive research has been conducted on the design of the flow fields, 6,7 forming of the metallic bipolar plates and assembly of the stack components, [8][9][10][11] and also methods of coating of bipolar plates. 12,13 But there is no detailed information about the joining methods of bipolar plates. Methods such as gluing, soldering, brazing, and pressure welding have been proposed for joining of two halves of a metallic bipolar plate by some researchers.…”

Section: Introductionmentioning

confidence: 99%

Small‐scale resistance seam welding of stainless steel bipolar plates of PEM fuel cells

et al. 2021

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Joining process is one of the major steps in the manufacturing of stainless steel bipolar plates (BPPs). In this paper, the resistance seam welding method with a capacitor discharge (CD) welding machine is used for welding the metallic bipolar plates of polymer electrolyte membrane (PEM) fuel cells. For welding, the curved paths in the surroundings of the BPPs, ball electrode is used on the positive side of the welding machine and electrode wheel is used for welding the short straight paths inside the flow field channels. Weld seam quality and leakage resistance are examined with the peel test and pillow test. Eventually, according to the results of the peel and pillow tests, the optimum welding parameters for welding a BPP are determined. Finally, two halves of a BPP with parallel serpentine channel flow field are welded together by resistance seam welding method.

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“…González-Gutiérrez et al. 16 investigated the electrochemical characteristics of the fuel cell simulation environment by zincing the aluminum bipolar plate and then depositing the Ni–P coating. The results show that the Ni–P coating is more suitable for the anodic side.…”

Section: Introductionmentioning

confidence: 99%

Polyacrylonitrile Infused in a Modified Honeycomb Aluminum Alloy Bipolar Plate and Its Acid Corrosion Resistance

Zeng

Hua

et al. 2020

ACS Omega

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Bipolar plates, accounting for a large proportion of proton exchange membrane fuel cells (PEMFCs), are highly susceptible to corrosion by H + , SO 4 2– , and so on because of the strong acid-rich and oxygen/hydrogen-rich environments. In this work, the corrosion resistance of aluminum alloy bipolar plates modified in the cathodic environment of PEMFCs has been investigated. A honeycomb structure is constructed by anodizing on an aluminum alloy (AA5052) bipolar plate, and a polyacrylonitrile (PAN) film is prepared by infusing PAN solution on the surface. From scanning electron microscopy and atomic force microscopy, we observe that the porous structure of the aluminum alloy surface is more advantageous for enhancing the mechanical engagement between PAN and the aluminum alloy. Therefore, the PAN film is dense and smooth. Electrochemical tests confirm that the PAN film greatly improves the corrosion resistance of the aluminum alloy bipolar plate under the cathodic environment of the PEMFC. When graphene oxide (GO) is added, the charge-transfer resistance ( R ct ) is not only improved but also the stability under oxygen-rich acidic conditions is prolonged.

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Studies on the physical and electrochemical properties of Ni-P coating on commercial aluminum as bipolar plate in PEMFC

Cited by 44 publications

References 33 publications

Electrical Conductivity Performance of Predicted Modified Fibre Contact Model for Multi-Filler Polymer Composite

Electrical Conductivity Performance of Predicted Modified Fibre Contact Model for Multi-Filler Polymer Composite

Small‐scale resistance seam welding of stainless steel bipolar plates of PEM fuel cells

Polyacrylonitrile Infused in a Modified Honeycomb Aluminum Alloy Bipolar Plate and Its Acid Corrosion Resistance

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