Reversible Losses in Proton Exchange Membrane Water Electrolysis
Year: 2025
Type: article
Abstract: Lower anode catalyst loadings and higher current densities are essential to lowering the levelized cost of H 2 production via proton exchange membrane water electrolysis (PEMWE). However, these approaches can induce significant durability challenges. Here, we show that cell degradation can include large reversible voltage losses across a variety of conditions, including low loadings and high currents. Although there is limited published discussion of reversible voltage losses in PEMWE, we demonstrate that they are an important consideration in cell efficiency and durability. Understanding the mechanisms of reversible losses and developing mitigation strategies is therefore a key priority for enabling low-cost PEMWE.
Authors: Sarah J. Blair, Jacob A. Wrubel, Chance Parrish, Makenzie R. Parimuha, Jayson Foster, Svitlana Pylypenko, Shaun M. Alia, Scott A. Mauger, Elliot Padgett
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $1,950
Award: G1231592444
OpenAlex ID: W4408632933