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research article

Perspective Alkaline electrolyzers: Powering industries and overcoming fundamental challenges

Dubouis, Nicolas
•
Ayme-Perrot, David
•
Degoulange, Damien
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April 17, 2024
Joule

For the sustainable development of the renewable hydrogen sector, alkaline electrolysis appears to be a technology of choice. Nevertheless, despite its long history that showed its reliability in the industrial field and despite the traditional belief from the scientific community, alkaline electrolyzer technology still requires optimization to meet the new challenges imposed by the deployment of large electrolysis plants, notably in the case of future massive islanded renewable hydrogen production plants. In fact, it turns out to be critical to reduce capital expenses (CAPEXs) costs, improve energy efficiency over time, and improve the dynamic response to intermittent power sources to lower operating expenses (OPEXs) costs while operating safely. In this context, some very fundamental challenges related to electrode degradation, electrolyte and bubble transport, membrane optimization, etc., must be addressed right now before being transferred to GW-scale industrial projects that should be commissioned in 2030.

  • Details
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Type
research article
DOI
10.1016/j.joule.2024.02.012
Web of Science ID

WOS:001232157900001

Author(s)
Dubouis, Nicolas
•
Ayme-Perrot, David
•
Degoulange, Damien
•
Grimaud, Alexis
•
Girault, Hubert  
Date Issued

2024-04-17

Publisher

Cell Press

Published in
Joule
Volume

8

Issue

4

Start page

883

End page

898

Subjects

Physical Sciences

•

Technology

•

Hydrogen Evolution

•

Metal-Oxides

•

Surface

•

Electrocatalysts

•

Electrode

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LEPA  
Available on Infoscience
June 19, 2024
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/208643
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