Effects of the membrane thickness and ionomer volume fraction on the performance of PEMFC with U-shaped serpentine channel

Mohanty, Surajeet; Desai, Akshaykumar N.; Singh, Suneet; Ramadesigan, Venkatasailanathan; Shaneeth, M.

doi:10.1016/j.ijhydene.2021.03.252

Cited by 27 publications

(6 citation statements)

References 37 publications

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“…In their study, the cell performance is quite low when the ionomer volume fraction is lower than 30% or higher than 55%, which is similar with the results in this work. The value of ionomer volume fraction was further determined to be 50% in a recent work by Mohanty et al 53 However, they did not perform tests with the value of ionomer volume fraction to be slightly changed like 48% or 52%. The finding in this work is a step further compared with previous results.…”

Section: Results and Analysismentioning

confidence: 99%

Numerical study of triple‐phase boundary length in high‐temperature proton exchange membrane fuel cell

Xia

Dai

et al. 2021

Intl J of Energy Research

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Summary Catalyst layer (CL) is the most important component in the high‐temperature proton exchange membrane fuel cell (HT‐PEMFC), as it offers reaction sites for hydrogen oxidation reaction (HOR) and oxygen reduction reactions (ORR). As the electrochemical reactions take place at gas/electron/proton interface, the length of this triple‐phase boundary (TPB) in the CL governs the rate of electrochemical reactions. As the TPB in the HT‐PEMFC has not been studied yet, a numerical non‐isothermal 3D model and a percolation micro model were developed in this work to investigate the effect of CLs' properties on both the TPB length and cell performance. The volume fractions, particle size, and particle size ratio of ionomer and Pt/C were selected for optimization. The results show that peak current density could be achieved at an ionomer volume fraction of 52%. Further improvement of cell performance requires smaller particle size and smaller particle size ratio of ionomer. Novelty statement A three‐dimensional non‐isothermal model of HT‐PEMFC was developed. By adopting the percolation model, length of triple phase boundary of HT‐PEMFC was successfully quantified. The particle parameters including the particle size and ionomer volume fraction can be optimized to increase the length of triple phase boundary, thus achieving higher cell performance.

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Section: Results and Analysismentioning

confidence: 99%

Numerical study of triple‐phase boundary length in high‐temperature proton exchange membrane fuel cell

Xia

Dai

et al. 2021

Intl J of Energy Research

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“…Fu et al 124 evaluated the protonic conductivity of a membrane subjected to polymerization and subsequent sulfonation, ultimately testing its performance in a single cell. Additionally, Mohanty et al 125 numerically assessed internal cell resistance across various membrane thicknesses, with the 2 mil variant demonstrating optimal results. In essence, the membrane's protonic conductivity is closely linked to hydration, which is affected by temperature.…”

Section: Membranementioning

confidence: 99%

Review on Electric Resistance in Proton Exchange Membrane Fuel Cells: Advances and Outlook

Wang,

He,

et al. 2024

Energy Fuels

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Improving fuel efficiency and performance in proton exchange membrane fuel cells is closely linked to reducing electric resistance. This review discusses the vital role, behavior, and methods to reduce electric resistance in fuel cells. We particularly focus on how electric resistance affects cell polarization loss and overall performance. We summarize key parameters, prediction formulas, standard values, and testing methods for both bulk resistance and contact resistance. A significant part of the review looks at often-overlooked factors like flow field design, clamping pressure, surface properties, and substrate material. The unique "channel/rib" design on the bipolar plates surface has a major impact on electric resistance. Research shows a balance between rib/channel ratios, clamping pressure, and resistance values. While narrower ratios help reduce contact resistance, they can increase bulk resistance and overall cell resistance, affecting voltage outputs. There's an ideal clamping pressure that offers the best balance between resistance and performance. Further, this review underscores the significance of material selection, flow field design, clamping pressure, and surface treatments in resistance management. Designs like serpentine flow fields and materials such as carbon paper are noted for their lower resistance characteristics. Synthesizing these insights, we propose coherent strategies to enhance cell performance by reducing electric resistance through improved fuel cell design. Conclusively, we analyze the challenges and future perspectives in achieving minimal electric resistance and maximal cell performance. Potential avenues for future research are identified, with an emphasis on nanomaterials, advanced fabrication techniques, experimental methodologies, numerical modeling, flow field design, and operational optimization.

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“…For membrane, the ultrathin composite perfluorinated sulfonate proton exchange membrane is the focus of future development. Mohanty et al [15] investigated the effect of membrane thickness and ionomer volume fraction on the cell performance. Due to the reduced ohmic resistance, thinner membranes achieve enhanced PEMFC performance.…”

Section: Membrane Electrode Assembly (Mea)mentioning

confidence: 99%

A Review of Fuel Cell System Technology: From Fuel Cell Stack to System Integration

Ren

Shen²,

Li³

et al. 2022

IJAMM

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Review A Review of Fuel Cell System Technology: From Fuel Cell Stack to System Integration Weiqun Ren 1,*, Jun Shen 2, Xuebing Li 1, and Changqing Du 2 1 Dongfeng Commercial Vehicle Co. Ltd., 10 Dongfeng Avenue, Wuhan, China 2 Wuhan University of Technology, Wuhan, China * Correspondence: renweiqun@tsinghua.org.cn; Tel.: +86-139-1820-4209 Received: 14 October 2022 Accepted: 8 November 2022 Published: 18 December 2022 Abstract: The technology of hydrogen fuel cell vehicles (FCV) is the ultimate direction of clean energy vehicle development, and commercial vehicles are the most important application area for fuel cell commercialization. This paper summarizes the key components, technologies and development trends of the fuel cell stack, fuel cell system and vehicle integration at home and abroad, and points out that key materials (such as bipolar plates and membrane electrodes), key system components (such as air compressors and ejectors), high-power modular integration technologies, and fuel cell control technologies are the main factors influencing the commercialization of FCVs. Particularly, we put the main fouce on variable ejector or multi-stage ejector technology, integrated and optimized control technology, and multi-energy cooperative control technology due to their crucial roles in meeting the industrial development of FCVs in China. Furthermore, some guidance opinions are also provided for reference about the development and industrialization of FCVs.

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Effects of the membrane thickness and ionomer volume fraction on the performance of PEMFC with U-shaped serpentine channel

Cited by 27 publications

References 37 publications

Numerical study of triple‐phase boundary length in high‐temperature proton exchange membrane fuel cell

Numerical study of triple‐phase boundary length in high‐temperature proton exchange membrane fuel cell

Review on Electric Resistance in Proton Exchange Membrane Fuel Cells: Advances and Outlook

A Review of Fuel Cell System Technology: From Fuel Cell Stack to System Integration

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