Optimal design of a cathode flow field for performance enhancement of PEM fuel cell

Zhou, Yu; Chen, Ben; Meng, Kai; Zhou, Heng; Chen, Wenshang; Zhang, Ning; Deng, Qihao; Yang, Guanghua; Tu, Zhengkai

doi:10.1016/j.apenergy.2023.121226

Cited by 26 publications

(2 citation statements)

References 66 publications

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“…Conventional flow fields, such as the parallel and serpentine ones, have been adopted since the early stage of fuel cell development . Compared with the traditional rib-channel flow fields, the porous metal foam was used because of its lightweight feature to reduce the weight of fuel cell stacks . Shen et al found that the introduction of metal foam could achieve a 44% decrease in thermal resistance compared with the composite material without metal foam.…”

Section: Introductionmentioning

confidence: 99%

Ni/Graphene Coating for Enhanced Corrosion Resistance of Metal Foam Flow Field in Simulated PEMFC Cathode Environment

Sun,

Hu,

Cao

et al. 2024

ACS Omega

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Metal foam flow field suffers serious corrosion issues in proton exchange membrane fuel cells due to its large surface area. Ni and Ni/graphene coatings are prepared under constant and gradient current modes, respectively, to improve the corrosion resistance. The effect of the electrodeposition current mode and the deposition mechanism is studied. Compared with Ni coating, Ni/graphene coating brings low corrosion current density and high coating resistance, effectively enhancing the stability of Ni foam in an acidic environment. Different from Ni coating with a single layer, Ni/graphene deposits have core−shell structure, with graphene coated on the surface of Ni nanoparticles. It is shown that graphene deposits cover the Ni particles during the electrodeposition, which protects nickel particles from agglomeration and forms an inert film on the surface of the porous structure.After an 8 h constant potential test, no significant pitting is observed on the surface of Ni/graphene coating, showing excellent anticorrosion performance. As to the effect of the deposition current mode, it is shown that more composite particles deposit on the upper layer under the gradient current mode, which brings denser protective film and fewer surface defects on the surface. Ni/ graphene coating electrodeposited under a gradient current mode between 0 and 10 mA•cm −2 exhibits the lowest corrosion current densities. The values at 50 and 80 °C are only 62.9 and 26.0% of those of uncoated Ni foam, respectively.

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Section: Introductionmentioning

confidence: 99%

Ni/Graphene Coating for Enhanced Corrosion Resistance of Metal Foam Flow Field in Simulated PEMFC Cathode Environment

Sun,

Hu,

Cao

et al. 2024

ACS Omega

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“…Zhou et al. [ 10 ] conducted a study comparing the performance of a fuel cell with a sinusoidal flow field and a fuel cell with a parallel flow field. As a result of the study, the fuel cell with a sinusoidal flow field showed higher performance compared to the fuel cell with a parallel flow channel due to favorable effects of mass transfer capacity and water removal performance.…”

Section: Introductionmentioning

confidence: 99%

Investigation of the Effects of Working Conditions on Performance of Planar and Cylindrical Proton Exchange Membrane Fuel Cells

Cellek,

Demircan

2023

Global Challenges

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In this study, the effects of varying operating conditions on cell performance in cylindrical and planar PEM (Proton Exchange Membrane) fuel cells with equal geometrical properties are investigated numerically. For this purpose, planar and cylindrical fuel cells are analyzed and the changes in performance are compared with each other. In particular, by increasing the temperature from 363 to 373 K, the current density decreases by ≈50%. When the pressure is increased from 1 atm to 1.2 atm, the current density increases by 20% and 2% in cylindrical and planar fuel cells, respectively. When the stoichiometric ratio is increased from 1 to 1.5, the current density increases by 25% and 32% for cylindrical and planar fuel cells, respectively. However, it decreases slightly after 1.5 value of the stoichiometric ratio. As a result, it is seen that temperature has a more significant effect on fuel cell performance than other operating conditions. It can be said that the planar fuel cell can operate with more stable performance than the cylindrical fuel cell when the temperature and pressure are changed. However, in the case of changing the stoichiometric ratio, there is no significant difference in the operating performance of both fuel cells.

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Investigation of proton exchange membrane fuel cell with 3D oblique prism block flow channel design

Bian,

Wang,

Che

et al. 2024

Ionics

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Optimal design of a cathode flow field for performance enhancement of PEM fuel cell

Cited by 26 publications

References 66 publications

Ni/Graphene Coating for Enhanced Corrosion Resistance of Metal Foam Flow Field in Simulated PEMFC Cathode Environment

Ni/Graphene Coating for Enhanced Corrosion Resistance of Metal Foam Flow Field in Simulated PEMFC Cathode Environment

Investigation of the Effects of Working Conditions on Performance of Planar and Cylindrical Proton Exchange Membrane Fuel Cells

Investigation of proton exchange membrane fuel cell with 3D oblique prism block flow channel design

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