Compressive Creep of Polymer Electrolyte Membranes: A Case Study for Electrolyzers

Compressive Creep of Polymer Electrolyte Membranes: A Case Study for Electrolyzers

TitleCompressive Creep of Polymer Electrolyte Membranes: A Case Study for Electrolyzers
Publication TypeJournal Article
Year of Publication2021
AuthorsClaire Arthurs, Ahmet Kusoglu
JournalACS Applied Energy Materials
Volume4
Issue4
Pagination3249 - 3254
Date Published03/2021
ISSN2574-0962
Abstract

For proton-exchange membrane (PEM) water electrolyzers to be commercially feasible, PEMs must perform over long lifetimes in liquid environments under compression while maintaining mechanical stability. A hydrated environment, while inherent for operation and conductivity, undermines PEM stability. Mechanical stability of PEMs is commonly characterized in tension, which is not applicable to electrolyzers, wherein PEMs could undergo high pressures. In this study, a compression creep procedure is developed using a custom-designed setup to monitor creep response of hydrated PEMs. Our results show that PEMs exhibit continuous creep response under compression over 24 h, with a dependence on the applied pressure and hydration state.

DOI10.1021/acsaem.0c0302410.1021/acsaem.0c03024.s001
Short TitleACS Appl. Energy Mater.
Refereed DesignationRefereed