62924 2025 eng poster 0 -- -- -- As the first commercial sodium-ion-batteries (SIBs) are available for purchase, it is possible to investigate material composition. Gaining an insight into the material composition of these SIBs is of interest not only for the classification of possible safety risks and hazards, but also in regards to recycling. Herein we report the preliminary investigations of the chemical and structural composition of first commercial SIB-cells.[1,2] Two different SIB-cell types were compared in terms of electrode size, thickness, loading etc. Furthermore, the composition of the active materials and electrolyte was investigated and compared. Finally, the gained results were linked to the different data sheet performance of the two cell types. Advanced Battery Power 2025 Aachen, Germany 01.04.2025 03.04.2025 publish false true Luise Sander eng uncontrolled Battery eng uncontrolled Sodium-Ion-Battery eng uncontrolled Electrochemical Energy Storage eng uncontrolled Energy Storage Angewandte Physik 1 Analytische Chemie; Referenzmaterialien 1.7 Organische Spuren- und Lebensmittelanalytik 3 Gefahrgutumschließungen; Energiespeicher 3.1 Sicherheit von Gefahrgutverpackungen und Batterien Energie Elektrische Energiespeicher und -umwandlung Datei im Netzwerk der BAM verfügbar ("Closed Access") Präsentation 3.6 Elektrochemische Energiematerialien