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A New Integrated GDL with Wavy Channel and Tunneled Rib for High Power Density PEMFC at Low Back Pressure and Wide Humidity
Proton exchange membrane fuel cells (PEMFCs) have garnered significant attention due to their high efficiency and low emissions. However, PEMFC always suffers mass transfer and water management in performance improvement. Herein, an integrated gas diffusion layer (GDL) with wavy channel and micro‐tu...
Autores principales: | , , , , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
John Wiley and Sons Inc.
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10558662/ https://www.ncbi.nlm.nih.gov/pubmed/37541300 http://dx.doi.org/10.1002/advs.202302928 |
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author | He, Can Wen, Qinglin Ning, Fandi Shen, Min He, Lei Li, Yali Tian, Bin Pan, Saifei Dan, Xiong Li, Wei Xu, Pengpeng Liu, Yiyang Chai, Zhi Zhang, Yihuang Liu, Wenming Zhou, Xiaochun |
author_facet | He, Can Wen, Qinglin Ning, Fandi Shen, Min He, Lei Li, Yali Tian, Bin Pan, Saifei Dan, Xiong Li, Wei Xu, Pengpeng Liu, Yiyang Chai, Zhi Zhang, Yihuang Liu, Wenming Zhou, Xiaochun |
author_sort | He, Can |
collection | PubMed |
description | Proton exchange membrane fuel cells (PEMFCs) have garnered significant attention due to their high efficiency and low emissions. However, PEMFC always suffers mass transfer and water management in performance improvement. Herein, an integrated gas diffusion layer (GDL) with wavy channel and micro‐tunneled rib is designed and prepared to achieve faster and gentler mass transfer and excellent water management capability by laser engraving. Outstandingly, the new integrated GDL can use the back pressure of air as low as 0 and 50 kPa to respectively achieve 80% and 90% of fuel cell performance realized under pure oxygen. Such high performance is mainly due to the turbulent flow caused by wavy channel and express removing pathway of liquid water provided by micro‐tunneled rib. Moreover, the new integrated GDL also shows wide humidity tolerance from 40% to 100% and a very high specific volume power density of 16,300 W L(−1) due to the thin thickness of new integrated GDL. This new integrated GDL is expected to be widely used in PEMFC and other energy conversion devices. |
format | Online Article Text |
id | pubmed-10558662 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | John Wiley and Sons Inc. |
record_format | MEDLINE/PubMed |
spelling | pubmed-105586622023-10-08 A New Integrated GDL with Wavy Channel and Tunneled Rib for High Power Density PEMFC at Low Back Pressure and Wide Humidity He, Can Wen, Qinglin Ning, Fandi Shen, Min He, Lei Li, Yali Tian, Bin Pan, Saifei Dan, Xiong Li, Wei Xu, Pengpeng Liu, Yiyang Chai, Zhi Zhang, Yihuang Liu, Wenming Zhou, Xiaochun Adv Sci (Weinh) Research Articles Proton exchange membrane fuel cells (PEMFCs) have garnered significant attention due to their high efficiency and low emissions. However, PEMFC always suffers mass transfer and water management in performance improvement. Herein, an integrated gas diffusion layer (GDL) with wavy channel and micro‐tunneled rib is designed and prepared to achieve faster and gentler mass transfer and excellent water management capability by laser engraving. Outstandingly, the new integrated GDL can use the back pressure of air as low as 0 and 50 kPa to respectively achieve 80% and 90% of fuel cell performance realized under pure oxygen. Such high performance is mainly due to the turbulent flow caused by wavy channel and express removing pathway of liquid water provided by micro‐tunneled rib. Moreover, the new integrated GDL also shows wide humidity tolerance from 40% to 100% and a very high specific volume power density of 16,300 W L(−1) due to the thin thickness of new integrated GDL. This new integrated GDL is expected to be widely used in PEMFC and other energy conversion devices. John Wiley and Sons Inc. 2023-08-04 /pmc/articles/PMC10558662/ /pubmed/37541300 http://dx.doi.org/10.1002/advs.202302928 Text en © 2023 The Authors. Advanced Science published by Wiley‐VCH GmbH https://creativecommons.org/licenses/by/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Research Articles He, Can Wen, Qinglin Ning, Fandi Shen, Min He, Lei Li, Yali Tian, Bin Pan, Saifei Dan, Xiong Li, Wei Xu, Pengpeng Liu, Yiyang Chai, Zhi Zhang, Yihuang Liu, Wenming Zhou, Xiaochun A New Integrated GDL with Wavy Channel and Tunneled Rib for High Power Density PEMFC at Low Back Pressure and Wide Humidity |
title | A New Integrated GDL with Wavy Channel and Tunneled Rib for High Power Density PEMFC at Low Back Pressure and Wide Humidity |
title_full | A New Integrated GDL with Wavy Channel and Tunneled Rib for High Power Density PEMFC at Low Back Pressure and Wide Humidity |
title_fullStr | A New Integrated GDL with Wavy Channel and Tunneled Rib for High Power Density PEMFC at Low Back Pressure and Wide Humidity |
title_full_unstemmed | A New Integrated GDL with Wavy Channel and Tunneled Rib for High Power Density PEMFC at Low Back Pressure and Wide Humidity |
title_short | A New Integrated GDL with Wavy Channel and Tunneled Rib for High Power Density PEMFC at Low Back Pressure and Wide Humidity |
title_sort | new integrated gdl with wavy channel and tunneled rib for high power density pemfc at low back pressure and wide humidity |
topic | Research Articles |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10558662/ https://www.ncbi.nlm.nih.gov/pubmed/37541300 http://dx.doi.org/10.1002/advs.202302928 |
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