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Criticality and life-cycle assessment of materials used in fuel-cell and hydrogen technologies
ID Mori, Mitja (Author), ID Stropnik, Rok (Author), ID Sekavčnik, Mihael (Author), ID Lotrič, Andrej (Author)

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Abstract
The purpose of this paper is to obtain relevant data on materials that are the most commonly used in fuel-cell and hydrogen technologies. The focus is on polymer-electrolyte-membrane fuel cells, solid-oxide fuel cells, polymer-electrolyte-membrane water electrolysers and alkaline water electrolysers. An innovative, methodological approach was developed for a preliminary material assessment of the four technologies. This methodological approach leads to a more rapid identification of the most influential or critical materials that substantially increase the environmental impact of fuel-cell and hydrogen technologies. The approach also assisted in amassing the life-cycle inventories—the emphasis here is on the solid-oxide fuel-cell technology because it is still in its early development stage and thus has a deficient materials’ database—that were used in a life-cycle assessment for an in-depth material-criticality analysis. All the listed materials—that either are or could potentially be used in these technologies—were analysed to give important information for the fuel-cell and hydrogen industries, the recycling industry, the hydrogen economy, as well as policymakers. The main conclusion from the life-cycle assessment is that the polymer-electrolyte-membrane water electrolysers have the highest environmental impacts; lower impacts are seen in polymer-electrolyte-membrane fuel cells and solid-oxide fuel cells, while the lowest impacts are observed in alkaline water electrolysers. The results of the material assessment are presented together for all the considered materials, but also separately for each observed technology.

Language:English
Keywords:critical materials, fuel cells, electrolysers, hydrogen technologies, criticality, life-cycle assessment
Work type:Article (dk_c)
Typology:1.01 - Original Scientific Article
Organization:FS - Faculty of Mechanical Engineering
Year:2021
Publication status in journal:Published
Article version:Publisher's version of article
Number of pages:29 str.
Numbering:Vol. 13, iss. 6, art. 3565
PID:20.500.12556/RUL-135056 This link opens in a new window
UDC:502.171:531.62(045)
ISSN on article:2071-1050
DOI:10.3390/su13063565 This link opens in a new window
COBISS.SI-ID:57362179 This link opens in a new window
Publication date in RUL:18.02.2022
Views:210
Downloads:64
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Record is a part of a journal

Title:Sustainability
Shortened title:Sustainability
Publisher:MDPI
ISSN:2071-1050
COBISS.SI-ID:5324897 This link opens in a new window

Licences

License:CC BY 4.0, Creative Commons Attribution 4.0 International
Link:http://creativecommons.org/licenses/by/4.0/
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
Licensing start date:23.03.2021

Secondary language

Language:Slovenian
Keywords:kritični materiali, gorivne celice, elektrolizerji, vodikove tehnologije, kritičnost, študija življenjskih ciklov

Projects

Funder:EC - European Commission
Funding programme:H2020
Project number:700190
Name:New technologies and strategies for fuel cells and hydrogen technologies in the phase of recycling and dismantling
Acronym:HYTECHCYCLING

Funder:EC - European Commission
Funding programme:Fuel Cells and Hydrogen 2 Joint Undertaking
Project number:101007216
Acronym:Best4Hy

Funder:EC - European Commission
Funding programme:H2020
Name:Fuel Cells and Hydrogen 2 Joint Undertaking

Funder:Drugi - Drug financer ali več financerjev
Funding programme:Hydrogen Europe
Name:Fuel Cells and Hydrogen 2 Joint Undertaking

Funder:Drugi - Drug financer ali več financerjev
Funding programme:Hydrogen Europe research
Name:Fuel Cells and Hydrogen 2 Joint Undertaking

Funder:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Project number:P2-0401
Name:Energetsko strojništvo

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