Investigating the stability and degradation of hydrogen PEM fuel cell

Mahmoud Dhimish; Romênia G. Vieira; Ghadeer Badran

doi:10.1016/j.ijhydene.2021.08.183

Investigating the stability and degradation of hydrogen PEM fuel cell

Mahmoud Dhimish, Romênia G. Vieira, Ghadeer Badran

Electronic Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

The hydrogen proton exchange membrane (PEM) fuel cells are promising to utilize fuel cells in electric vehicle (EV) applications. However, hydrogen PEM fuel cells are still encountering challenges regarding their functionality and degradation mechanism. Therefore, this paper aims to study the performance of a 3.2 kW hydrogen PEM fuel cell under accelerated operation conditions, including varying fuel pressure at a level of 0.1–0.5 bar, variable loading, and short-circuit contingencies. We will also present the results on the degradation estimation mechanism of four fuel cells working at different operational conditions, including high-to-low voltage range and high-to-low temperature variations. These experiments examine over 180 days of continuous fuel cell working cycle. We have observed that the drop in the fuel cells' efficiency is at around 7.2% when varying the stack voltage and up to 14.7% when the fuel cell's temperature is not controlled and remained at 95 °C.

Original language	English
Pages (from-to)	37017-37028
Number of pages	12
Journal	International Journal of Hydrogen Energy
Volume	46
Issue number	74
Early online date	12 Sept 2021
DOIs	https://doi.org/10.1016/j.ijhydene.2021.08.183
Publication status	Published - 26 Oct 2021

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10.1016/j.ijhydene.2021.08.183

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© 2021 Hydrogen Energy Publications LLC. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy.
Accepted author manuscript, 836 KBLicence: CC BY-NC-ND

Cite this

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abstract = "The hydrogen proton exchange membrane (PEM) fuel cells are promising to utilize fuel cells in electric vehicle (EV) applications. However, hydrogen PEM fuel cells are still encountering challenges regarding their functionality and degradation mechanism. Therefore, this paper aims to study the performance of a 3.2 kW hydrogen PEM fuel cell under accelerated operation conditions, including varying fuel pressure at a level of 0.1–0.5 bar, variable loading, and short-circuit contingencies. We will also present the results on the degradation estimation mechanism of four fuel cells working at different operational conditions, including high-to-low voltage range and high-to-low temperature variations. These experiments examine over 180 days of continuous fuel cell working cycle. We have observed that the drop in the fuel cells' efficiency is at around 7.2% when varying the stack voltage and up to 14.7% when the fuel cell's temperature is not controlled and remained at 95 °C.",

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