A technical review on gas diffusion, mechanism and medium of PEM fuel cell

Jayakumar, Arunkumar; Sethu, Sundar Pethaiah; Ramos, Maximiano; Robertson, John; Al‐Jumaily, Ahmed M.

doi:10.1007/s11581-014-1322-x

Cited by 117 publications

(57 citation statements)

References 151 publications

(184 reference statements)

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“…It can be found that some AM technologies can be used to fabricate more than one component in a fuel cell . For example, selective laser sintering (SLS) from the group of powder bed fusion has been demonstrated to fabricate different functional components in a single PEMFC, i.e., the aluminide‐made gas diffusion layer (GDL) and the graphite‐made flow field plates , , . Besides, Table also shows that certain fuel cell components can be fabricated using more than one AM technology.…”

Section: Additive Manufacturing Technologies For Fuel Cell Applicationmentioning

confidence: 99%

Accelerating Fuel Cell Development with Additive Manufacturing Technologies: State of the Art, Opportunities and Challenges

et al. 2019

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In recent years, the use of additive manufacturing (AM) has been demonstrated in the fabrication of components in polymer electrolyte membrane fuel cell, solid oxide fuel cell (SOFC), microbial fuel cell (MFC) and laminar flow-based fuel cell (LFFC). Various AM technologies have been successfully demonstrated in fuel cell manufacturing include material extrusion, powder bed fusion, vat photopolymerization and binder jetting. One of the unique advantages of AM is the ability to handle sophisticated design with features ranging from macro to micro scales, which are inaccessible by conventional manufacturing technologies. Well-designed complex 3D structures were reported to have the potential for increasing the performance of fuel cells. Therefore, AM presents itself as a promising fabrication method to promote the development of fuel cells. Besides, AM also showed its specialty in time-saving, flexibility, and on-demand manufacturability in the fabrication of fuel cell components. In spite of the prospects of AM in fuel cells, more studies and researches are required to overcome challenges, such as availability of material, manufacturing quality, and the costs. This review focuses on the advantages and applications of additive manufacturing that enable improvement in fuel cell performance. The critical challenges and directions for future development are also highlighted.

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Section: Additive Manufacturing Technologies For Fuel Cell Applicationmentioning

confidence: 99%

Accelerating Fuel Cell Development with Additive Manufacturing Technologies: State of the Art, Opportunities and Challenges

et al. 2019

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“…GDL is usually made of two different layers, whose combination should impart these properties: one is a macro-porous layer, sometimes called back diffusion layer, and the second one is named micro-porous layer. Both are carbon-based, but to reach the desired hydrophobic properties a PTFE coating of the entire GDL is needed [4]. In this study the bases to create an entire "one piece" GDL are placed, in order to simplify the obtaining of the usual one.…”

Section: Gomentioning

confidence: 99%

Preparation and characterization of graphene oxide based membranes as possible Gas Diffusion Layers for PEM fuel cells with enhanced surface homogeneity

Migliavacca

Latorrata

Stampino

et al. 2017

Materials Today: Proceedings

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The aim of this work is to define and optimize a process to produce a membrane made of reduced graphene oxide, r-GO, aiming to use it as Gas Diffusion Layer, GDL, in a Polymer Electrolyte Membrane Fuel Cell, PEMFC. Some works have reported that r-GO could reach conductivity values of about 10 4 S/m; by using the "self-assembling" properties of GO, it would be possible to obtain a GDL with enhanced homogeneity, which maintains a good electronic conductivity. A reduction process of GO in aqueous solution was developed in order to get the desired conductivity value of the final product. The membrane was characterized through several techniques to assess key parameters and to understand its properties. In this work it was possible to obtain a membrane which has a maximum contact angle of 86° and a conductivity of about 421 S/m.

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“…Each electrode consist of at least a catalyst layer (CL) and a gas diffusion layer (GDL). GDL is an integral part of a PEMFC and its principal functions are to efficiently transport the reactants and the products to and from the CL as well as to conduct heat and current between CL and bipolar plates (BPs) , . In a PEMFC stack, several cells are stacked in series with compression.…”

Section: Introductionmentioning

confidence: 99%

Effects of Compression on the Removal of Water Droplet from GDLs of PEM Fuel Cells

2019

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Proton-exchange membrane fuel cells (PEMFCs) with a sound potential for employing in the propulsion systems of green vehicles are currently at a high stage of development. However, appropriate water management is crucial for further development of PEMFCs. In the current investigation, the role of gas diffusion layer (GDL) compression and wettability on the removal of a water droplet from different GDLs with dissimilar levels of compression (0%, 15%, 20%, and 25%) and wettability (contact angles of 80°, 105°, and 150°) is inspected by numerous 3D lattice Boltzmann simulations.The results of this study demonstrate that by increasing of compression level, the droplet ejection will be more probable. Besides, for hydrophobic GDLs (i.e., contact angles of 105°a nd 150°) adding compression will help the removal process, regardless of the compression amount. However, for the hydrophilic GDLs (contact angle of 80°) adding compression is not necessarily helpful.

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A technical review on gas diffusion, mechanism and medium of PEM fuel cell

Cited by 117 publications

References 151 publications

Accelerating Fuel Cell Development with Additive Manufacturing Technologies: State of the Art, Opportunities and Challenges

Accelerating Fuel Cell Development with Additive Manufacturing Technologies: State of the Art, Opportunities and Challenges

Preparation and characterization of graphene oxide based membranes as possible Gas Diffusion Layers for PEM fuel cells with enhanced surface homogeneity

Effects of Compression on the Removal of Water Droplet from GDLs of PEM Fuel Cells

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