64765 2025 eng 5832 5838 21 9 article Royal Society of Chemistry (RSC) 1 -- -- -- Commercially available sodium-ion battery (SIB) cells, with energy densities comparable to lithium-ion battery (LIB) cells based on LiFePO4, were investigated regarding their safety behaviour under thermal abuse conditions. Tests were carried out in an inert atmosphere. The SIB-cells went into thermal runaway (TR), intriguingly, even at a rather low state of charge of 30%. The TR-event was coupled with a pronounced jelly roll ejection, challenging the interpretation of the TR-diagrams. These findings highlight the necessity of incorporating SIB-cells into the ongoing safety classification discussions for LIB-cells. Sustainable Energy & Fuels 2398-4902 10.1039/d5se00687b urn:nbn:de:kobv:b43-647652 true journal-article http://creativecommons.org/licenses/by/3.0/ crossref PersonAuthorFirstName_1,PersonAuthorLastName_1,PersonAuthorFirstName_2,PersonAuthorLastName_2,PersonAuthorFirstName_3,PersonAuthorLastName_3,PersonAuthorFirstName_4,PersonAuthorLastName_4,PersonAuthorFirstName_5,PersonAuthorLastName_5,PersonAuthorIdentifierOrcid_5,PersonAuthorFirstName_6,PersonAuthorLastName_6,PersonAuthorFirstName_7,PersonAuthorLastName_7,PersonAuthorIdentifierOrcid_7,PublisherName,TitleMain_1,Language,TitleAbstract_1,TitleParent_1,PageFirst,PageLast,Issue,Volume,PublishedYear,IdentifierIssn,Enrichmentlocal_crossrefLicence doi-import 19.11.2025 false true Creative Commons - CC BY - Namensnennung 4.0 International Nils Böttcher Luise Sander Alexander Ulbricht Martinus Putra Widjaja Tim-Patrick Fellinger Anita Schmidt Jonas Krug von Nidda eng uncontrolled Sodium Ion Batteries eng uncontrolled Thermal Runaway eng uncontrolled Battery safety Angewandte Physik 3 Gefahrgutumschließungen; Energiespeicher 3.1 Sicherheit von Gefahrgutverpackungen und Batterien 8 Zerstörungsfreie Prüfung 8.5 Röntgenbildgebung Energie Elektrische Energiespeicher und -umwandlung Verlagsliteratur Datei für die Öffentlichkeit verfügbar ("Open Access") Wissenschaftliche Artikel der BAM 3.6 Elektrochemische Energiematerialien Bundesanstalt für Materialforschung und -prüfung (BAM) https://opus4.kobv.de/opus4-bam/files/64765/d5se00687b.pdf