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Polymers 2018, 10(9), 971; https://doi.org/10.3390/polym10090971

An Investigation of the Compressive Behavior of Polymer Electrode Membrane Fuel Cell’s Gas Diffusion Layers under Different Temperatures

Department of Mechanical Engineering, Inha University, Incheon 22212, Korea
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Received: 2 July 2018 / Revised: 27 August 2018 / Accepted: 28 August 2018 / Published: 1 September 2018
(This article belongs to the Special Issue Polymeric Materials for Electrochemical Energy Conversion and Storage)
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Abstract

In this paper, a commercial gas diffusion layer is used, to quantitatively study the correlation between its compressive characteristics and its operating temperature. In polymer electrode membrane fuel cells, the gas diffusion layer plays a vital role in the membrane electrode assembly, over a wide range of operating temperatures. Therefore, understanding the thermo-mechanical performance of gas diffusion layers is crucial to design fuel cells. In this research, a series of compressive tests were conducted on a commercial gas diffusion layer, at three different temperatures. Additionally, a microscopical investigation was carried out with the help of a scanning electron microscope, to study the evolution and development of the microstructural damages in the gas diffusion layers which is caused by the thermo-mechanical load. From the obtained results, it could be concluded that the compressive stiffness of the commercial gas diffusion layer depends, to a great extent, on its operational temperature. View Full-Text
Keywords: gas diffusion layer; polymer electrode membrane fuel cell; compressive characteristics; thermo-mechanics; microstructure gas diffusion layer; polymer electrode membrane fuel cell; compressive characteristics; thermo-mechanics; microstructure
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Chen, Y.; Jiang, C.; Cho, C. An Investigation of the Compressive Behavior of Polymer Electrode Membrane Fuel Cell’s Gas Diffusion Layers under Different Temperatures. Polymers 2018, 10, 971.

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