The Role of Fluorinated Polymers in the Water Management of Proton Exchange Membrane Fuel Cells: A Review

As the hydrogen market is projected to grow in the next decades, the development of more efficient and better-performing polymer electrolyte membrane fuel cells (PEMFCs) is certainly needed. Water management is one of the main issues faced by these devices and is strictly related to the employment o...

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Main Authors: Marco Mariani, Andrea Basso Peressut, Saverio Latorrata, Riccardo Balzarotti, Maurizio Sansotera, Giovanni Dotelli
Format: Article
Language:English
Published: MDPI AG 2021-12-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/14/24/8387
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author Marco Mariani
Andrea Basso Peressut
Saverio Latorrata
Riccardo Balzarotti
Maurizio Sansotera
Giovanni Dotelli
author_facet Marco Mariani
Andrea Basso Peressut
Saverio Latorrata
Riccardo Balzarotti
Maurizio Sansotera
Giovanni Dotelli
author_sort Marco Mariani
collection DOAJ
description As the hydrogen market is projected to grow in the next decades, the development of more efficient and better-performing polymer electrolyte membrane fuel cells (PEMFCs) is certainly needed. Water management is one of the main issues faced by these devices and is strictly related to the employment of fluorinated materials in the gas diffusion medium (GDM). Fluorine-based polymers are added as hydrophobic agents for gas diffusion layers (GDL) or in the ink composition of microporous layers (MPL), with the goal of reducing the risk of membrane dehydration and cell flooding. In this review, the state of the art of fluorinated polymers for fuel cells is presented. The most common ones are polytetrafluoroethylene (PTFE) and fluorinated ethylene propylene (FEP), however, other compounds such as PFA, PVDF, PFPE, and CF<sub>4</sub> have been studied and reported. The effects of these materials on device performances are analyzed and described. Particular attention is dedicated to the influence of polymer content on the variation of the fuel cell component properties, namely conductivity, durability, hydrophobicity, and porosity, and on the PEMFC behavior at different current densities and under multiple operating conditions.
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spelling doaj.art-4855dfbe232d47abb50dd18711816c932023-11-23T08:06:35ZengMDPI AGEnergies1996-10732021-12-011424838710.3390/en14248387The Role of Fluorinated Polymers in the Water Management of Proton Exchange Membrane Fuel Cells: A ReviewMarco Mariani0Andrea Basso Peressut1Saverio Latorrata2Riccardo Balzarotti3Maurizio Sansotera4Giovanni Dotelli5Department of Mechanical Engineering, Politecnico di Milano, Via La Masa 1, 20156 Milano, ItalyDepartment of Chemistry, Materials and Chemical Engineering “G. Natta”, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, ItalyDepartment of Chemistry, Materials and Chemical Engineering “G. Natta”, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, ItalyDepartment of Chemistry, Materials and Chemical Engineering “G. Natta”, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, ItalyDepartment of Chemistry, Materials and Chemical Engineering “G. Natta”, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, ItalyDepartment of Chemistry, Materials and Chemical Engineering “G. Natta”, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, ItalyAs the hydrogen market is projected to grow in the next decades, the development of more efficient and better-performing polymer electrolyte membrane fuel cells (PEMFCs) is certainly needed. Water management is one of the main issues faced by these devices and is strictly related to the employment of fluorinated materials in the gas diffusion medium (GDM). Fluorine-based polymers are added as hydrophobic agents for gas diffusion layers (GDL) or in the ink composition of microporous layers (MPL), with the goal of reducing the risk of membrane dehydration and cell flooding. In this review, the state of the art of fluorinated polymers for fuel cells is presented. The most common ones are polytetrafluoroethylene (PTFE) and fluorinated ethylene propylene (FEP), however, other compounds such as PFA, PVDF, PFPE, and CF<sub>4</sub> have been studied and reported. The effects of these materials on device performances are analyzed and described. Particular attention is dedicated to the influence of polymer content on the variation of the fuel cell component properties, namely conductivity, durability, hydrophobicity, and porosity, and on the PEMFC behavior at different current densities and under multiple operating conditions.https://www.mdpi.com/1996-1073/14/24/8387fluorinated polymergas diffusion layermicroporous layerPEM fuel cellPTFEFEP
spellingShingle Marco Mariani
Andrea Basso Peressut
Saverio Latorrata
Riccardo Balzarotti
Maurizio Sansotera
Giovanni Dotelli
The Role of Fluorinated Polymers in the Water Management of Proton Exchange Membrane Fuel Cells: A Review
Energies
fluorinated polymer
gas diffusion layer
microporous layer
PEM fuel cell
PTFE
FEP
title The Role of Fluorinated Polymers in the Water Management of Proton Exchange Membrane Fuel Cells: A Review
title_full The Role of Fluorinated Polymers in the Water Management of Proton Exchange Membrane Fuel Cells: A Review
title_fullStr The Role of Fluorinated Polymers in the Water Management of Proton Exchange Membrane Fuel Cells: A Review
title_full_unstemmed The Role of Fluorinated Polymers in the Water Management of Proton Exchange Membrane Fuel Cells: A Review
title_short The Role of Fluorinated Polymers in the Water Management of Proton Exchange Membrane Fuel Cells: A Review
title_sort role of fluorinated polymers in the water management of proton exchange membrane fuel cells a review
topic fluorinated polymer
gas diffusion layer
microporous layer
PEM fuel cell
PTFE
FEP
url https://www.mdpi.com/1996-1073/14/24/8387
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